JP5063791B2 - Portable information processing apparatus and display control method for portable information processing apparatus - Google Patents

Description

  The present invention relates to a portable information processing apparatus and a display control method for the information processing apparatus.

  A portable information processing device such as a mobile phone terminal or PDA (Personal Digital Assistants) includes an operation button and a display, and displays character information on the display in response to information input by the operation button, or can be operated by the operation button. Accordingly, it is possible to perform character / image information processing such as displaying character information or image information stored in advance on a display. This type of portable information processing apparatus has the advantage that it is easy to carry and can perform the information processing described above regardless of location. However, in this type of portable information processing apparatus, there is a possibility that display information on the display may be peeped by people around you depending on the location.

  In this regard, Patent Document 1 below discloses a technique relating to peep prevention. In the portable information processing apparatus described in Patent Document 1, it is possible to prevent peeping from an oblique direction by narrowing the viewing angle of the display.

JP 2006-98556 A

  By the way, information that is troublesome for the user to be seen by the surrounding people is often a part of the display information on the display, and the user prevents peeping at a part of the display information while continuing the information processing. There is a request to do.

  Accordingly, an object of the present invention is to provide a portable information processing apparatus and a display control method for the portable information processing apparatus that can prevent a peep at a part of display information while continuing information processing. Yes.

The portable information processing apparatus of the present invention has (a) display means for displaying information, and (b) a contact area corresponding to the display area of the display means, and detects a contact operation on the contact area to detect the contact area. An operation means for outputting a position signal indicating the position of the contact operation in the display, and (c) a display including all positions of the display area corresponding to each position of the contact operation in the contact area based on a plurality of position signals from the operation means Range determining means for determining the target range of the area, (d) display control means for performing display control processing for making the information displayed in the target range of the display area invisible to the display means,
Comprising

  Another display control method for a portable information processing device according to the present invention is a display control method for a portable information processing device comprising display means for displaying information and an operation means having a contact area corresponding to the display area of the display means. In (a), a contact operation on the contact area is detected, and a position signal indicating the position of the contact operation in the contact area is generated. (B) Based on the plurality of position signals, each position of the contact operation in the contact area is generated. A target range of the display area including all the positions of the corresponding display areas is determined, and (c) information displayed in the target range of the display area is made invisible to the display means.

  According to the portable information processing apparatus and the display control method of the portable information processing apparatus, the range determination unit includes a display area target range that includes all positions of the display area corresponding to the position of the contact operation detected by the operation unit. The display control means makes the information displayed in the target range of the display area invisible to the display means. For example, the user simply touches the operation means, and the display corresponding to the touched portion of the contact area is displayed. Only the information displayed in the target range of the area can be hidden. Therefore, it is possible to prevent peeping only on a portion of the display information that is not desired to be seen.

  Further, according to the portable information processing device and the display control method of the portable information processing device, it is possible to continue displaying information other than the portion that is not desired to be seen. On the other hand, it is suitable for the purpose of showing other display information to friends and acquaintances.

  The range determining means described above includes a display including all the trajectories of the display area corresponding to the traced trace based on a plurality of position signals indicating the traced trace when the user traces the contact area of the operation means. It is preferable to determine the target range of the region.

  According to this, the user can prevent peeping by simply tracing the operation means. When human beings make a mistake while writing with a writing instrument, they may fill out and erase the wrong part. The tracing operation is the above-described operation performed by humans, and is similar to the operation of erasing a certain range, so that the user can perform an intuitive operation.

  In addition, the range determining unit described above is configured to provide a plurality of positions indicating ranges touched for a predetermined time or more when the user touches the contact area of the operating device for a predetermined time or more and receives a position signal from the operation unit for a predetermined time or more. Based on the signal, it is preferable to determine the target range of the display area that includes the entire range of the display area corresponding to the range touched for a predetermined time or more.

  According to this, the user can prevent peeping only by touching the operation means for a predetermined time or more. Humans sometimes cover and hide parts that they want to hide. The operation of touching for a predetermined time or longer is the above-described operation that is conventionally performed by humans, and is similar to the operation of hiding a certain range, so that the user can perform an intuitive operation.

Further, the position signal described above includes matrix coordinates in the contact area, and the range determination means described above determines the maximum value and the minimum value in the column direction from the plurality of matrix coordinates in the display area corresponding to the plurality of matrix coordinates in the contact area. And the maximum value and minimum value in the row direction may be obtained, and the target range of the display area surrounded by the maximum value and minimum value in the column direction and the maximum value and minimum value in the row direction may be determined.

Further, the position signal described above includes matrix coordinates in the contact area, the display area described above has a plurality of divided areas, and the range determining means described above includes a plurality of matrix coordinates in the contact area. A composite area, which is a plurality of matrix coordinates of the corresponding display area and is a combination of divided areas including at least one of the plurality of matrix coordinates of the display area, may be determined as the target range of the display area.

  Another portable information processing apparatus of the present invention has (a) display means for displaying information, and (b) a contact area corresponding to the display area of the display means, and detects a contact operation on the contact area, An operation means for outputting a position signal indicating the position of the contact operation in the contact area; and (c) determining a contact operation range of the contact area including all positions of the contact operation based on a plurality of position signals from the operation means; Range determining means for determining a target range of the display area corresponding to the touch operation range of the touch area; and (d) display control means for performing display control processing for making the information displayed in the target range of the display area invisible to the display means. With.

  Another display control method for a portable information processing device according to the present invention is a display control method for a portable information processing device comprising display means for displaying information and an operation means having a contact area corresponding to the display area of the display means. (A) detecting a contact operation on the contact area, generating a position signal indicating the position of the contact operation in the contact area, and (b) a contact area including all positions of the contact operation based on the plurality of position signals. The display operation range is determined, the target range of the display area corresponding to the touch operation range of the touch area is determined, and (c) the information displayed in the target range of the display area is made invisible to the display means.

  According to this other portable information processing apparatus and the display control method of the other portable information processing apparatus, the range determining means corresponds to the contact operation range of the contact area including all the positions of the contact operation detected by the operating means. Since the display control means determines the target area of the display area to be displayed and makes the information displayed in the target area of the display area invisible to the display means, for example, the user only touches the operation means and touches the touch area. Only the information displayed in the target range of the display area corresponding to the part can be hidden. Therefore, it is possible to prevent peeping only on a portion of the display information that is not desired to be seen.

  Further, according to the display control method of this other portable information processing apparatus and another portable information processing apparatus, it is possible to continue displaying information other than the parts that are not desired to be seen. It is suitable for applications where other display information is to be shown to friends and acquaintances while concealing various parts.

  When the user traces the contact area of the operation means, the range determining means determines the contact operation range of the contact area including all the traced traces based on a plurality of position signals indicating the traced traces. It is preferable to do.

  According to this, the user can prevent peeping by simply tracing the operation means. When human beings make a mistake while writing with a writing instrument, they may fill out and erase the wrong part. The tracing operation is the above-described operation performed by humans, and is similar to the operation of erasing a certain range, so that the user can perform an intuitive operation.

  In addition, the range determining unit described above is configured to provide a plurality of positions indicating ranges touched for a predetermined time or more when the user touches the contact area of the operating device for a predetermined time or more and receives a position signal from the operation unit for a predetermined time or more. Based on the signal, it is preferable to determine the contact operation range of the contact area including the entire range touched for a predetermined time or more.

  According to this, the user can prevent peeping only by touching the operation means for a predetermined time or more. Humans sometimes cover and hide parts that they want to hide. The operation of touching for a predetermined time or longer is the above-described operation that is conventionally performed by humans, and is similar to the operation of hiding a certain range, so that the user can perform an intuitive operation.

Further, the position signal described above includes matrix coordinates in the contact area, and the range determining means obtains the maximum value and minimum value in the column direction and the maximum value and minimum value in the row direction from the plurality of matrix coordinates, The contact operation range of the contact area surrounded by the maximum value and minimum value in the column direction and the maximum value and minimum value in the row direction may be determined.

The position signal described above includes matrix coordinates in the contact area, the contact area includes a plurality of divided areas, and the range determination means includes at least one of the plurality of matrix coordinates. A combined region obtained by combining the divided regions including the contact region may be determined as the contact operation range of the contact region.

  The display control means described above may cause the display means to change the information displayed in the target area of the display area, or the display color of the information displayed in the target area of the display area and the target area of the display area. The display color of the background may be the same color on the display means. Further, the above display means may have a display mask layer above the display layer for displaying information, and the above display control means may perform mask display in the target range in the display mask layer.

  According to the present invention, in a portable information processing apparatus, it is possible to prevent a peep from a part of display information while continuing information processing.

1 is a perspective view illustrating a configuration of a portable information processing device according to a first embodiment of the present invention. 1 is a block diagram illustrating a configuration of a portable information processing device according to a first embodiment of the present invention. It is a figure which shows the range determination process by the range determination part of FIG. It is a figure which shows the range determination process by the range determination part of FIG. It is a figure which shows the display control process by the display control part of FIG. It is a flowchart which shows the display control method of the portable information processing apparatus which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the portable information processing apparatus which concerns on the 2nd Embodiment of this invention. It is a figure which shows the range determination process by the range determination part of FIG. It is a figure which shows the range determination process by the range determination part of FIG. It is a figure which shows the display control process by the display control part of FIG. It is a flowchart which shows the display control method of the portable information processing apparatus which concerns on the 2nd Embodiment of this invention. It is a figure which shows the range determination process by the range determination part of 3rd Embodiment. It is a flowchart which shows the display control method of the portable information processing apparatus which concerns on the 3rd Embodiment of this invention. It is a block diagram which shows the structure of the portable information processing apparatus which concerns on the 4th Embodiment of this invention. It is a perspective view which shows the portable information processing apparatus which concerns on the 4th Embodiment of this invention. It is a flowchart which shows the display control method of the portable information processing apparatus which concerns on the 4th Embodiment of this invention. It is a block diagram which shows the structure of the portable information processing apparatus which concerns on the 5th Embodiment of this invention. It is a perspective view which shows the portable information processing apparatus which concerns on the 5th Embodiment of this invention. It is a flowchart which shows the display control method of the portable information processing apparatus which concerns on the 5th Embodiment of this invention. It is a figure which shows the modification of contact operation by a user. It is a figure which shows the modification of contact operation by a user. It is a figure which shows the modification of contact operation by a user. It is a figure which shows the modification of contact operation by a user. It is a figure which shows the modification of contact operation by a user. It is a figure which shows the modification of contact operation by a user. It is a figure which shows the modification of contact operation by a user. It is a figure which shows the modification of contact operation by a user. It is a figure which shows the modification of contact operation by a user. It is a figure which shows the modification of the range determination process by a range determination part. It is a figure which shows the modification of the range correction process by a range determination part. It is a figure which shows the modification of the range determination process by a range determination part. It is a figure which shows the modification of the range determination process by a range determination part.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.
[First Embodiment]

  FIG. 1 is a perspective view showing the configuration of the portable information processing apparatus according to the first embodiment of the present invention, and FIG. 2 shows the configuration of the portable information processing apparatus according to the first embodiment of the present invention. FIG. 1 and 2 show a mobile phone terminal as an example of a portable information processing apparatus. The portable information processing apparatus 1 shown in FIGS. 1 and 2 includes a display unit 10, an operation unit 20, and a control unit 30. In FIG. 1, the control unit 30 is housed in a housing that houses the display unit 10 or a housing that houses the operation unit 20.

  The display unit 10 is a liquid crystal display, for example. In the display unit 10, a plurality of pixels are arranged in the matrix direction, and a region where these pixels are arranged is a display region 10a. The display unit 10 receives information such as character data and image data from the control unit 30, and displays these information in the display area 10a. For example, based on information from the control unit 30, the display unit 10 causes pixels corresponding to matrix coordinates (addresses) indicated by these pieces of information to emit light in colors indicated by these pieces of information.

  The operation unit 20 is, for example, an electrostatic pad, and includes a column electrode layer, a row electrode layer, and a dielectric layer disposed between the column electrode layer and the row electrode layer. In the column electrode layer, a plurality of column electrodes extending in the column direction are juxtaposed in the row direction, and in the row electrode layer, a plurality of row electrodes extending in the row direction are juxtaposed in the column direction. A region where these column electrodes and row electrodes are arranged is a contact region 20a. The operation unit 20 detects a contact operation on the contact region 20a by the user, and outputs a position signal indicating the position of the contact operation in the contact region 20a to the control unit 30.

  Specifically, in the operation unit 20, the portion where the column electrode and the row electrode intersect each constitutes a capacitor, and the capacitor is configured by changing the capacitance of the capacitor by the user's contact operation. The potential between the column electrode and the row electrode to be changed changes. As described above, the operation unit 20 detects a change in the capacitance of the capacitor, that is, a change in potential between the column electrode and the row electrode, and detects a contact operation on the contact region 20a by the user. Then, the operation unit 20 outputs the matrix coordinates of the portion where the column electrode and the row electrode where the potential has changed to the control unit 30 as a position signal.

  The intersection position between the column electrode and the row electrode in the contact region 20 a of the operation unit 20 is associated with the pixel position in the display region 10 a of the display unit 10. Note that the intersection position between the column electrode and the row electrode and the pixel position do not necessarily have to be in one-to-one correspondence.

  The control unit 30 includes a ROM (Read Only Memory) that stores various programs and various information (transmission / reception mail history character information, image information, mail address information, etc.), and a CPU (Central Processing Unit) that executes the various programs stored in the ROM. And a RAM (Random Access Memory) that temporarily stores information and serves as a work area for executing various programs. With such a configuration, the control unit 30 functions as the range determination unit 31 and the display control unit 32.

  Hereinafter, the range determination unit 31 and the display control unit 32 will be described with reference to FIGS. 3 to 5 are diagrams sequentially illustrating the process steps of the range determination process by the range determination unit 31 and the display control process by the display control unit 32.

  Based on a plurality of position signals from the operation unit 20, the range determination unit 31 determines a target range of the display region 10a including all the positions of the display region 10a corresponding to each position of the contact operation in the contact region 20a.

  Specifically, as shown in FIG. 3, the range determination unit 31 is based on a plurality of position signals indicating the traced trajectory (zigzag line drawing) L <b> 2 when the user traces the contact area 20 a with a finger. The locus L1 of the display area 10a corresponding to the traced locus L2 is obtained. For example, in the ROM, the intersection position of the column electrode and the row electrode in the contact area 20a of the operation unit 20 and the pixel in the display area 10a of the display unit 10 are associated with each other and stored in advance as a table. The range determination unit 31 obtains the locus L1 of the display area 10a corresponding to the traced locus L2 in the contact area 20a based on this table.

  In addition, the range determination unit 31 determines the target range A1 of the display area 10a that includes the entire locus L1 of the display area 10a. Specifically, the range determination unit 31 obtains the maximum value Xmax and the minimum value Xmin in the column direction from the matrix coordinates of the display area 10a corresponding to the matrix coordinates of the contact area 20a included in each position signal, and the row direction A maximum value Ymax and a minimum value Ymin are obtained. Then, the range determination unit 31 obtains four matrix coordinates (Xmin, Ymin), (Xmax, Ymin), (Xmin, Ymax), (Xmax, Ymax) from these values, and a range surrounded by these matrix coordinates. Is determined as the target range A1 of the display area 10a.

  In addition, the range determining unit 31 adjusts the determined target range A1. For example, as shown in FIG. 4, the range determination unit 31 displays a frame line B indicating the target range A1 on the display unit 10 after the target range is determined, and the operation unit 20 displays the contact region 20a corresponding to the frame line B. The touch operation and the sliding motion to the part are detected. The range determination unit 31 receives the position signal corresponding to the slide operation and recalculates the target range. Then, the range determination unit 31 displays the process selection menu M on the display unit 10 after determining the target range, and selects the position N2 in the contact area 20a corresponding to the position of the process N1 in the display area 10a, thereby selecting the target range A2. Confirm (FIG. 5).

  As shown in FIG. 5, the display control unit 32 performs a display control process for making the information displayed in the target range A <b> 2 of the display area 10 a invisible to the display unit 10. For example, the display control unit 32 temporarily stores information displayed in the target range A2 of the display area 10a in the RAM, changes the information of the target range A2, and outputs the information to the display unit 10. In the present embodiment, all the color information of the target range A2 is changed to gray.

  In addition, the display control unit 32 cancels the display control process described above in response to a display control process cancel operation from the user, an end operation of the information processing currently being performed, or the like. Specifically, the display control unit 32 returns the information of the target range A2 of the display area 10a to the information stored in the RAM.

  Next, the operation of the portable information processing apparatus 1 according to the first embodiment will be described, and the display control method for the portable information processing apparatus according to the first embodiment of the present invention will be described. FIG. 6 is a flowchart showing the display control method of the portable information processing apparatus according to the first embodiment of the present invention.

  For example, when creating a transmission mail using the mail function, there is a case where it is desired to hide a mail address of a destination that is private information. In this case, the user traces the part of the contact area 20a of the operation unit 20 corresponding to the destination of the display area 10a of the display unit 10 with an index finger or the like (FIG. 3).

  Then, the operation unit 20 detects a change in potential between the column electrode and the row electrode due to the finger touching the contact region 20a, and positions the matrix coordinates of the intersection of the column electrode and the row electrode where the potential has changed. The signals are sequentially output to the control unit 30 as signals. In this way, the operation unit 20 detects an operation of tracing the contact area 20a, and outputs a plurality of position signals indicating the trace (jagged line drawing) L2 in the contact area 20a to the control unit 30. (Step S01).

  Next, the range determining unit 31 obtains a locus L1 of the display area 10a corresponding to the traced locus L2 in the contact area 20a based on a table stored in advance in the ROM (step S02).

  Next, the range determination unit 31 obtains the maximum value Xmax and the minimum value Xmin in the column direction from the matrix coordinates of the display region 10a corresponding to the matrix coordinates of the contact region 20a included in each position signal, and the maximum in the row direction. A value Ymax and a minimum value Ymin are obtained. Then, the range determination unit 31 obtains four matrix coordinates (Xmin, Ymin), (Xmax, Ymin), (Xmin, Ymax), (Xmax, Ymax) from these values, and is surrounded by these matrix coordinates. The range is determined as the target range A1 of the display area 10a. In this way, the range determining unit 31 determines the target range A1 of the display area 10a that includes all the obtained trajectory L1 (step S03).

  Next, as shown in FIG. 4, the range determination unit 31 causes the display unit 10 to display the target range A1 of the display area 10a with the frame B and display the process selection menu M. When the user touches the portion of the contact area 20a of the operation unit 20 corresponding to the frame line B of the display area 10a of the display unit 10 and slides his / her finger, the operation unit 20 detects a finger slide operation. The range determination unit 31 receives the position signal corresponding to the slide operation and recalculates the target range of the display area 10a. In this way, the range determining unit 31 adjusts the target range A1 of the display area 10a (step S04).

  Thereafter, when the user touches the position N2 of the contact area 20a of the operation unit 20 corresponding to the position of the process “hide” N1 in the process selection menu M of the display area 10a, the operation unit 20 detects and the range determination unit 31 Confirms the adjusted target range A2 as the target range of the display area 10a (FIG. 5) (step S04).

  Then, the display control unit 32 starts display control processing. Specifically, the display control unit 32 temporarily stores information displayed in the target range A2 of the display area 10a in the RAM, changes all the color information of the target range A2 to gray, and outputs the information to the display unit 10. To do. Then, the display unit 10 grays out the target range A2 of the display area 10a according to the changed information, thereby making the information displayed in the target range A2 invisible (FIG. 5) (step S05).

  In the present embodiment, since the destination in the display area 10a is only hidden, the outgoing mail can be continuously created.

  When the transmission mail creation process is finished by the user, the display control unit 32 cancels the display control process described above. Specifically, the display control unit 32 returns the information of the target range A2 to the information stored in the RAM, stores the transmission mail information, and ends the transmission mail creation process.

  As described above, according to the display control method of the portable information processing device 1 of the first embodiment and the portable information processing device of the first embodiment, the range determination unit 31 detects the contact detected by the operation unit 20. The target ranges A1 and A2 of the display area 10a including all the positions of the display area 10a corresponding to the operation position are determined, and the display control unit 32 displays the information displayed in the target range A2 of the display area 10a on the display unit 10. For example, the user can hide only the information displayed in the target range A2 of the display unit 10 corresponding to the touched portion of the contact area 20a simply by touching the operation unit 20. Therefore, it is possible to prevent peeping only on a portion of the display information that is not desired to be seen.

  Moreover, according to the display control method of the portable information processing device 1 of the first embodiment and the portable information processing device of the first embodiment, it is possible to continue displaying information other than the portions that are not desired to be seen. Therefore, it is suitable, for example, for the purpose of hiding a private part in the display information and showing other display information to friends and acquaintances.

  As described above, according to the display control method of the portable information processing apparatus 1 of the first embodiment and the portable information processing apparatus of the first embodiment, information such as transmission mail creation, reception mail browsing, image browsing, and the like. While continuing the processing, it is possible to prevent a peep at a part of the display information.

Further, according to the portable information processing device 1 of the first embodiment and the display control method of the portable information processing device of the first embodiment, the user can prevent peeping by simply tracing the operation unit 20. Can do. When human beings make a mistake while writing with a writing instrument, they may fill out and erase the wrong part. The tracing operation is the above-described operation performed by humans, and is similar to the operation of erasing a certain range, so that the user can perform an intuitive operation.
[Second Embodiment]

  FIG. 7 is a block diagram showing a configuration of a portable information processing apparatus according to the second embodiment of the present invention. A portable information processing apparatus 1A shown in FIG. 7 is different from the first embodiment in that the portable information processing apparatus 1 includes a display unit 10A and a control unit 30A instead of the display unit 10 and the control unit 30. Yes. Other configurations of the portable information processing apparatus 1A are the same as those of the portable information processing apparatus 1.

  The display unit 10A is different from the display unit 10 in that it includes a plurality of display layers. For example, the display unit 10A has the same configuration as the display unit 10 and includes a display layer that displays information such as character data and image data in the display area 10a, and a display mask layer that is disposed above the display layer. ing. The display unit 10A makes the information displayed on the display layer invisible by changing the color of the target range in the display mask layer from normal transparency to gray according to the display control signal from the control unit 30A.

  The control unit 30A is different from the first embodiment in that the control unit 30 includes a range determination unit 31A and a display control unit 32A instead of the range determination unit 31 and the display control unit 32, respectively.

  Hereinafter, the range determination unit 31A and the display control unit 32A will be described with reference to FIGS. 8 to 10 are diagrams sequentially illustrating the process steps of the range determination process by the range determination unit 31A and the display control process by the display control unit 32A.

  Similar to the range determination unit 31, the range determination unit 31A is based on a plurality of position signals from the operation unit 20, and the display region 10a includes all the positions of the display region 10a corresponding to each position of the contact operation in the contact region 20a. Determine the target range.

  Specifically, the range determining unit 31A, as shown in FIG. 8, when the user touches the contact area 20a with a finger or hand for a predetermined time or more and receives a position signal from the operation unit 20 for a predetermined time or more, Based on a plurality of position signals indicating the range C2 that has been touched for a predetermined time or longer, the range C1 of the display area 10a corresponding to the range C2 is obtained. For example, in the ROM, the intersection position between the column electrode and the row electrode in the contact area 20a of the operation unit 20 and the pixel in the display area 10a of the display unit 10A are associated with each other and stored in advance as a table. The range determination unit 31A obtains the range C1 of the display area 10a corresponding to the touched range C2 in the contact area 20a based on this table.

  Similarly to the range determination unit 31, the range determination unit 31A determines the target range A1 of the display region 10a including the entire range C1 of the display region 10a. That is, the range determination unit 31A obtains the maximum value Xmax and the minimum value Xmin in the column direction from the matrix coordinates of the display area 10a corresponding to the matrix coordinates of the contact area 20a included in each position signal, and the maximum value in the row direction. Ymax and the minimum value Ymin are obtained. Then, the range determination unit 31A obtains four matrix coordinates (Xmin, Ymin), (Xmax, Ymin), (Xmin, Ymax), (Xmax, Ymax) from these values, and a range surrounded by these matrix coordinates Is determined as the target range A1 of the display area 10a.

  Further, the range determining unit 31A adjusts the determined target range A1 in the same manner as the range determining unit 31. For example, as shown in FIG. 9, the range determination unit 31A displays a frame line B indicating the target range A1 on the display unit 10A after the target range is determined, and the operation unit 20 displays the contact region 20a corresponding to the frame line B. The touch operation and the sliding motion to the part are detected. The range determination unit 31A receives the position signal corresponding to the slide operation and recalculates the target range. Then, the range determination unit 31A displays the process selection menu M on the display unit 10A after determining the target range, and selects the position N2 in the contact area 20a corresponding to the position of the process N1 in the display area 10a, thereby defining the target range A2. Confirm (FIG. 10).

  As shown in FIG. 10, the display control unit 32A performs a display control process for making the information displayed in the target range A2 of the display area 10a invisible on the display unit 10. For example, the display control unit 32A outputs the color information of the target range A2 of the display mask layer of the display unit 10A to the display unit 10A. In the present embodiment, the color of the target range A2 of the display mask layer of the display unit 10A is changed from transparent to gray.

  Next, the operation of the portable information processing apparatus 1 according to the second embodiment will be described, and the display control method for the portable information processing apparatus according to the second embodiment of the present invention will be described. FIG. 11 is a flowchart showing a display control method of the portable information processing apparatus according to the second embodiment of the present invention.

  For example, when displaying an image and showing it to a friend or acquaintance, it may be desired to partially hide the image. In this case, the user touches a part of the contact area 20a of the operation unit 20 corresponding to a part to be hidden of the display area 10a of the display unit 10A with a hand or the like for a predetermined time or longer (FIG. 8).

  Then, the operation unit 20 detects a change in potential between the column electrode and the row electrode due to the finger touching the contact region 20a, and positions the matrix coordinates of the intersection of the column electrode and the row electrode where the potential has changed. The signals are sequentially output to the control unit 30 as signals. In this way, the operation unit 20 detects an operation of touching the contact area 20a, and outputs a plurality of position signals indicating the touched range C2 in the contact area 20a to the control unit 30A (step S01A). .

  Next, when the user touches the contact area 20a for a predetermined time or longer and receives a position signal from the operation unit 20 for a predetermined time or longer, the range determination unit 31A is stored in advance in the ROM as in the range determination unit 31. Based on the table, the range C1 of the display area 10a corresponding to the touched range C2 in the contact area 20a is obtained (step S02A).

  Next, similarly to the range determination unit 31, the range determination unit 31A determines the maximum value Xmax and the minimum value Xmin in the column direction from the matrix coordinates of the display region 10a corresponding to the matrix coordinates of the contact region 20a included in each position signal. And the maximum value Ymax and the minimum value Ymin in the row direction are obtained. Then, the range determination unit 31 obtains four matrix coordinates (Xmin, Ymin), (Xmax, Ymin), (Xmin, Ymax), (Xmax, Ymax) from these values, and is surrounded by these matrix coordinates. The range is determined as the target range A1 of the display area 10a. In this way, the range determining unit 31A determines the target range A1 of the display area 10a that includes all the calculated range C1 (step S03A).

  Next, as shown in FIG. 9, the range determination unit 31A displays the target range A1 of the display area 10a on the display unit 10A with the frame line B and also displays the process selection menu M. When the user touches the portion of the contact area 20a of the operation unit 20 corresponding to the frame line B of the display area 10a of the display unit 10A and slides the finger, the operation unit 20 detects a finger slide operation. The range determination unit 31A receives the position signal corresponding to the slide operation and recalculates the target range of the display area 10a. In this way, the range determination unit 31A adjusts the target range A1 of the display area 10a, similarly to the range determination unit 31 (step S04).

  Thereafter, when the user touches the position N2 of the contact area 20a of the operation unit 20 corresponding to the position of the process “hide” N1 in the process selection menu M of the display area 10a, the operation unit 20 detects and the range determination unit 31A. Confirms the adjusted target range A2 as the target range of the display area 10a (FIG. 10) (step S04).

  Then, the display control unit 32A starts the display control process. Specifically, the display control unit 32A changes the color of the target range A2 of the display mask layer of the display unit 10A from transparent to gray and outputs it to the display unit 10. Then, in accordance with the changed information, the display unit 10A grays out the target range A2 of the display area 10a to make the information displayed in the target range A2 invisible (FIG. 10) (step S05).

  In the present embodiment, since only a part of the display area 10a is hidden, the display process of other parts can be continued.

  In the portable information processing apparatus 1A of the second embodiment and the display control method of the portable information processing apparatus of the second embodiment, the portable information processing apparatus 1 of the first embodiment and the display control method of the first embodiment are also used. Advantages similar to the display control method of the portable information processing apparatus can be obtained.

In addition, according to the portable information processing device 1 of the second embodiment and the display control method of the portable information processing device of the second embodiment, the user peeks only by touching the operation unit 20 for a predetermined time or more. It is possible to prevent viewing. Humans sometimes cover and hide parts that they want to hide. The operation of touching for a predetermined time or longer is the above-described operation that is conventionally performed by humans, and is similar to the operation of hiding a certain range, so that the user can perform an intuitive operation.
[Third Embodiment]

  Next, a portable information processing device 1B according to a third embodiment of the present invention will be described. As illustrated in FIG. 2, the portable information processing device 1 </ b> B is different from the first embodiment in that the portable information processing device 1 includes a control unit 30 </ b> B instead of the control unit 30. Other configurations of the portable information processing device 1B are the same as those of the portable information processing device 1.

  The control unit 30B is different from the first embodiment in that the control unit 30 includes a range determination unit 31B instead of the range determination unit 31. Other configurations of the control unit 30B are the same as those of the control unit 30.

  The range determination unit 31B determines the contact operation range of the contact region 20a including all the positions of the contact operation based on the plurality of position signals from the operation unit 20, and then corresponds to the contact operation range of the contact region 20a. It differs from the range determination part 31 by the point which determines the object range of the display area 10a.

  FIG. 12 is a diagram illustrating range determination processing by the range determination unit 31B. For example, when the user traces the contact area 20a of the operation unit 20 with a finger, the range determining unit 31B traces the locus L2 based on a plurality of position signals indicating the traced locus (zigzag line drawing) L2. The contact operation range D of the contact area 20a including all of the above is determined. Specifically, the range determination unit 31B obtains the maximum value Xmax and the minimum value Xmin in the column direction and the maximum value Ymax and the minimum value Ymin in the row direction from the matrix coordinates included in each position signal. Then, the range determination unit 31B obtains four matrix coordinates (Xmin, Ymin), (Xmax, Ymin), (Xmin, Ymax), (Xmax, Ymax) from these values, and a range surrounded by these matrix coordinates. Is determined as the contact operation range D of the contact area 20a.

  Here, for example, in the ROM, a plurality of patterns of contact operation ranges D conceivable in the contact region 20a of the operation unit 20 are stored in advance, and the display regions of the display unit 10 associated with the respective contact operation ranges D are stored. A plurality of patterns of the target range A1 in 10a are stored in advance. That is, in the ROM, a plurality of patterns of the touch operation range D and a plurality of patterns of the target range A1 are associated with each other and stored in advance as a table. The range determination unit 31B determines the target range A1 corresponding to the contact operation range D based on this table.

  Similarly to the range determination unit 31, the range determination unit 31B adjusts the determined target range A1, and determines the adjusted target range A2.

  Next, the operation of the portable information processing apparatus 1B according to the third embodiment will be described, and the display control method for the portable information processing apparatus according to the third embodiment of the present invention will be described. FIG. 13 is a flowchart showing a display control method of the portable information processing apparatus according to the third embodiment of the present invention.

  First, the process of step S01 described above is performed. Next, the range determination unit 31B calculates the maximum value Xmax and the minimum value Xmin in the column direction and the maximum value Ymax and the minimum value Ymin in the row direction from the matrix coordinates included in each position signal. Then, the range determining unit 31B obtains four matrix coordinates (Xmin, Ymin), (Xmax, Ymin), (Xmin, Ymax), (Xmax, Ymax) from these values, and is surrounded by these matrix coordinates. The range is determined as the contact operation range D of the contact area 20a. In this way, the range determining unit 31B determines the contact operation range D of the contact area 20a including all the traced locus L2 (step S02B).

  Next, the range determination unit 31B determines the target range A1 of the display area 10a corresponding to the contact operation range D of the contact area 20a based on a table stored in advance in the ROM (step S03B). Thereafter, the processes of steps S04 and S05 described above are performed.

The display control method for the portable information processing apparatus 1B according to the third embodiment and the portable information processing apparatus according to the third embodiment also uses the portable information processing apparatus 1 according to the first embodiment and the display control method according to the first embodiment. Advantages similar to the display control method of the portable information processing apparatus can be obtained.
[Fourth Embodiment]

  FIG. 14 is a block diagram showing a configuration of a portable information processing apparatus according to the fourth embodiment of the present invention, and FIG. 15 is a perspective view showing a portable information processing apparatus according to the fourth embodiment of the present invention. FIG. A portable information processing device 1C shown in FIG. 14 and FIG. 15 includes a display unit 10C and a control unit 30C in place of the display unit 10 and the control unit 30 in the portable information processing device 1, respectively. It is different from the form. Other configurations of the portable information processing device 1 </ b> C are the same as those of the portable information processing device 1.

  The display unit 10C is different from the display unit 10 in that the display unit 10C includes a plurality of divided regions E1 to E15 obtained by dividing the display region 10a in a grid pattern in the matrix direction.

  The control unit 30C is different from the first embodiment in that the control unit 30 includes a range determination unit 31C instead of the range determination unit 31. The other configuration of the control unit 30C is the same as that of the control unit 30.

  As described above, the range determination unit 31C is traced based on a plurality of position signals indicating the traced locus (zigzag line drawing) L2 when the user traces the contact area 20a of the operation unit 20 with a finger. The locus L1 of the display area 10a corresponding to the locus L2 is obtained. And the range determination part 31C differs from the range determination part 31 by the point which determines the synthetic | combination area | region which synthesize | combined the divided areas E1-E6 including at least one part of the locus | trajectory L1 of the display area 10a as the object range A1 of the display area 10a. Yes. Specifically, the range determination unit 31C determines a combined region obtained by combining the divided regions E1 to E6 including at least one of the plurality of matrix coordinates in the locus L1 of the display region 10a as the target range A1 of the display region.

  Similarly to the range determination unit 31, the range determination unit 31C adjusts the determined target range A1, and determines the adjusted target range A2.

  Next, the operation of the portable information processing apparatus 1C according to the fourth embodiment will be described, and the display control method for the portable information processing apparatus according to the fourth embodiment of the present invention will be described. FIG. 16 is a flowchart showing a display control method of the portable information processing apparatus according to the fourth embodiment of the present invention.

  First, the processes of steps S01 and S02 described above are performed. Next, the range determination unit 31C determines a combined region obtained by combining the divided regions E1 to E6 including at least a part of the locus L1 of the display region 10a as the target range A1 of the display region. Specifically, the range determination unit 31C determines a combined region obtained by combining the divided regions E1 to E6 including at least one of the plurality of matrix coordinates in the locus L1 of the display region 10a as the target range A1 of the display region. (Step S03C). Thereafter, the processes of steps S04 and S05 described above are performed.

  The display control method for the portable information processing apparatus 1C according to the fourth embodiment and the portable information processing apparatus according to the fourth embodiment also includes the portable information processing apparatus 1 according to the first embodiment and the display control method according to the first embodiment. Advantages similar to the display control method of the portable information processing apparatus can be obtained.

Further, according to the display control method of the portable information processing device 1C of the fourth embodiment and the portable information processing device of the fourth embodiment, if the number of divisions of the display area 10a is increased, the display information is limited to a rectangle. It is possible to hide a part of the display area 10a with various shapes.
[Fifth Embodiment]

  FIG. 17 is a block diagram showing a configuration of a portable information processing apparatus according to the fifth embodiment of the present invention, and FIG. 18 is a perspective view showing a portable information processing apparatus according to the fifth embodiment of the present invention. FIG. A portable information processing device 1D shown in FIGS. 17 and 18 is a third embodiment in which the portable information processing device 1B includes an operation unit 20D and a control unit 30D instead of the operation unit 20 and the control unit 30B. It is different from the form. Other configurations of the portable information processing device 1D are the same as those of the portable information processing device 1B.

  The operation unit 20D is different from the operation unit 20 in that the operation unit 20D includes a plurality of divided regions F1 to F21 obtained by dividing the contact region 20a in a matrix shape in the matrix direction.

  The control unit 30D is different from the third embodiment in that the control unit 30B includes a range determination unit 31D instead of the range determination unit 31B. Other configurations of the control unit 30D are the same as those of the control unit 30B.

  As described above, the range determination unit 31D is traced based on a plurality of position signals indicating the traced locus (zigzag line drawing) L2 when the user traces the contact area 20a of the operation unit 20 with a finger. The third embodiment is different from the third embodiment in that the combined region obtained by combining the divided regions F1 to F6 including at least a part of the locus L2 is determined as the contact operation range D of the contact region 20a. Specifically, the range determining unit 31D determines a combined region obtained by combining the divided regions F1 to F6 including at least one of the plurality of matrix coordinates in the traced locus L2 as the contact operation range D of the contact region 20a.

  Here, for example, as described above, a plurality of contact operation ranges D and a plurality of patterns target ranges A1 are associated with each other and stored in advance in the ROM as a table. The range determination unit 31D determines a target range A1 corresponding to the contact operation range D based on this table.

  Similarly to the range determination unit 31, the range determination unit 31D adjusts the determined target range A1 and determines the adjusted target range A2.

  Next, the operation of the portable information processing apparatus 1D according to the fifth embodiment will be described, and the display control method for the portable information processing apparatus according to the fifth embodiment of the present invention will be described. FIG. 19 is a flowchart showing a display control method of the portable information processing apparatus according to the fifth embodiment of the present invention.

  First, the process of step S01 described above is performed. Next, the range determining unit 31D determines a combined operation area obtained by combining the divided areas F1 to F6 including at least a part of the traced locus L2 as the contact operation range D of the contact area 20a. Specifically, the range determining unit 31D determines a combined region obtained by combining the divided regions F1 to F6 including at least one of the plurality of matrix coordinates in the traced locus L2 as the contact operation range D of the contact region 20a ( Step S02D). Thereafter, the processes of steps S03B to S05 described above are performed.

  Also in the display control method of the portable information processing apparatus 1D of the fifth embodiment and the portable information processing apparatus of the fifth embodiment, the portable information processing apparatus 1 of the first embodiment and the display control method of the first embodiment. Advantages similar to the display control method of the portable information processing apparatus can be obtained.

  Further, according to the display control method of the portable information processing device 1D of the fifth embodiment and the portable information processing device of the fifth embodiment, if the number of divisions of the contact area 20a is increased, the shape is limited to a rectangle. It is possible to hide a part of the display area 10a with various shapes.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, in the present embodiment, a mobile phone terminal is exemplified as the portable information processing apparatus, but a portable apparatus that can process information such as a PDA is widely applied to the portable information processing apparatus.

  Further, in the first and third to fifth embodiments, an example in which the user performs a zigzag contact operation with a finger to hide a part of the display area 10a has been described. It is not limited to. For example, as shown in FIGS. 20, 21, and 22, the user performs a contact operation with a plurality of fingers to trace linearly in the vertical and horizontal directions (including the vertical and horizontal directions) or the diagonal direction. Also good. Moreover, as shown in FIG. 23, the user may perform a contact operation with a plurality of fingers so as to slide in a zigzag manner in the vertical and horizontal directions or in an oblique direction. Also, as shown in FIGS. 24, 25, and 26, the user performs a touch operation that slides linearly or zigzag in the vertical and horizontal directions (including the vertical and horizontal directions) or in the diagonal direction with the fingers of both hands. You may go. Further, as shown in FIG. 27, the user may perform a contact operation that traces in a plurality of directions so as to surround the region. Even in such a contact operation, the portable information processing devices 1, 1 </ b> B, 1 </ b> C, and 1 </ b> D of the first and third to fifth embodiments set the target range A <b> 1 of the display area 10 a corresponding to the position of the contact operation. The information of the handling range A1 can be hidden.

  If a person writes wrongly while writing with a writing instrument, the wrong place may be erased with a double line. The movement of tracing with a plurality of fingers in a straight line is the above-described action that humans have conventionally performed, and is similar to the action of erasing a certain range with a double line, so the user performs an intuitive operation. It becomes possible.

  In the second embodiment, in order to hide a part of the display area 10a, as shown in FIG. 8, the user performs a touch operation with a left or right finger or hand for a predetermined time or more. As shown in FIG. 28, the user may perform a touch operation that touches with both left and right fingers and hands for a predetermined time or more. Even in such a contact operation, the portable information processing apparatus 1A according to the second embodiment obtains the target range A1 of the display area 10a corresponding to the position of the contact operation, and hides the information on the handling range A1. Can do.

  In this case, due to unevenness between fingers and fingers, fingers and palms, fingers and backs of hands, a gap is generated in the touched range C2 in the contact area 20a of the operation unit 20, and the range determination unit 31A A plurality of ranges C1 and target ranges A1 of the display area 10a corresponding to the range C2 may be determined. Therefore, the range determination unit 31A estimates the entire positional relationship from the plurality of ranges C2 in the contact region 20a, that is, the plurality of ranges C1 in the display region 10a, corrects the range, and determines one target range A1. Good.

  For example, as shown in FIG. 29, the range determination unit 31A calculates the positional relationship of the plurality of ranges C2 in the contact area 20a, and calculates the maximum value, the minimum value, and the intermediate value of each position. That is, the range determination unit 31A calculates the positional relationship between the plurality of ranges C1 in the display area 10a, and calculates the maximum value, the minimum value, and the intermediate value of each position. Then, the range determination unit 31A performs correction by connecting adjacent ranges C2, that is, the ranges C1, from these positional relationships so that the selected range becomes the largest. By performing correction in this way, the range determination unit 31A determines one target range A1.

  Thereafter, the range determination unit 31A adjusts the determined target range A1 as described above. For example, as illustrated in FIG. 30, the range determination unit 31A determines the movement distance and the movement direction from the locus of the contact operation in the contact area 20a, adjusts the target range A1, and determines the target range A2.

  In the present embodiment, the contact operation that the operation unit 20 traces or touches the touch operation is detected, and the range determination units 31, 31A, 31B, 31C, and 31D determine the target ranges A1 and A2 that include all the positions of the contact operation. However, the method for determining the contact operation and the target ranges A1 and A2 is not limited to the present embodiment. For example, the operation unit may detect two or more point contact operations, and the range determination unit may determine the target ranges A1 and A2 that include all positions of these point contact operations.

  31 and 32 are diagrams showing range determination processing of the range determination unit according to the modification of the present invention. As shown in FIG. 31, for example, the user touches the start point G2 and the end point H2 of the range of the contact area 20a corresponding to the portion to be hidden in the display area 10a with the little finger and the index finger. Then, the range determination unit obtains the positions G1 and H1 of the display area 10a corresponding to the touched positions G2 and H2 in the contact area 20a based on a prestored table, and starts each of these positions G1 and H1. The target range A1 as the end point is determined. Note that when the contact operation by the user is three or more points, the target range A1 may be obtained from the maximum value and the minimum value in the matrix direction of the matrix coordinates as in this embodiment.

  Then, as shown in FIG. 32, the range determination unit displays the frame line B indicating the target range A1 on the display unit 10 after the target range is determined, and causes the user to slide the contact positions G2 and H2 in the contact region 20a. The target range is recalculated. Then, the range determination unit displays the process selection menu M on the display unit 10 after determining the target range, and determines the target range A2 by selecting the position N2 in the contact area 20a corresponding to the position of the process N1 in the display area 10a. To do. In the present embodiment, the process selection menu M is displayed on the thumb side so that the process can be easily selected with the third thumb.

  In the present embodiment, the range determination units 31, 31A, 31B, 31C, and 31D select the display control process and other processes such as copy, cut, enlargement / reduction, and character color change. The display control process and other processes may not be selected. For example, in the case of a special contact operation such as a tracing contact operation or a touching contact operation, display control is performed after the range determination unit 31, 31A, 31B, 31C, 31D determines the target range without displaying the process selection menu. The units 32 and 32A may immediately execute the display control process.

  In the first and third to fifth embodiments, the display control units 32 and 32A have changed the information of the target range A1 in the display area 10a, but only the character color in the information of the target range A1 is used as the background color. The information of the target range A1 may not be seen as the same. Conversely, only the background color in the information of the target range A1 may be the same as the character color.

  Further, the portable information processing device 1A of the second embodiment, after determining the contact operation range D in the contact region 20a, like the portable information processing devices 1B and 1D of the third and fifth embodiments, The target range A1 of the display area 10a corresponding to the contact operation range D may be obtained based on a previously stored table. Further, the portable information processing device 1A of the second embodiment is at least within the range of the display area 10a corresponding to the range of the touched contact area 20a, like the portable information processing device 1C of the fourth embodiment. A combined region obtained by combining divided regions including a part may be determined as the target range A1 of the display region 10a.

  In the present embodiment, an electrostatic pad is exemplified as the operation unit 20, but a device that can detect a contact operation such as a touch panel or an optical sensor is widely applied to the operation unit 20.

  In the present embodiment, the contact operation with a finger or a hand is exemplified, but the contact operation may be performed with an object such as a touch pen.

  1, 1A, 1B, 1C, 1D ... portable information processing apparatus, 10, 10A, 10C ... display section (display means), 10a ... display area, 20, 20D ... operating section (operation means), 20a ... contact area, 30, 30A, 30B, 30C, 30D ... control unit, 31, 31A, 31B, 31C, 31D ... range determination unit (range determination unit), 32, 32A ... display control unit (display control unit), E1-E24, F1 -F24 ... division | segmentation area | region.

Claims (11)

Display means for displaying information;
An operation means having a contact area corresponding to the display area of the display means, detecting a contact operation on the contact area, and outputting a position signal indicating a position of the contact operation in the contact area;
Based on a plurality of the position signals from the operation means, range determination means for determining a target range of the display area including all positions of the display area corresponding to each position of the contact operation in the contact area;
Display control means for performing display control processing for making the information displayed in the target range of the display area invisible to the display means;
With
The range determining means indicates a range touched by the user when the contact area of the operation means is touched for a predetermined time or more and the position signal is received from the operation means for the predetermined time or more. Based on a plurality of the position signals, determine a target range of the display area including all the range of the display area corresponding to the range touched for the predetermined time or more,
Portable information processing device. The position signal includes matrix coordinates in the contact area;
The display area has a plurality of divided areas,
The range determining means is a combination of a plurality of matrix coordinates of the display area corresponding to a plurality of matrix coordinates of the contact area, and a combination of the divided areas including at least one of the plurality of matrix coordinates of the display area Determining an area as a target range of the display area;
The portable information processing apparatus according to claim 1. The position signal includes matrix coordinates in the contact area;
The range determining means obtains a maximum value and a minimum value in the column direction and a maximum value and a minimum value in the row direction from the plurality of matrix coordinates of the display region corresponding to the plurality of matrix coordinates of the contact region, and the column Determining a target range of the display area surrounded by the maximum and minimum values in the direction and the maximum and minimum values in the row direction;
The portable information processing apparatus according to claim 1. Display means for displaying information;
An operation means having a contact area corresponding to the display area of the display means, detecting a contact operation on the contact area, and outputting a position signal indicating a position of the contact operation in the contact area;
Based on the plurality of position signals from the operation means, a contact operation range of the contact area including all the positions of the contact operation is determined, and a target range of the display area corresponding to the contact operation range of the contact area is determined. A range determining means for determining;
Display control means for performing display control processing for making the information displayed in the target range of the display area invisible to the display means;
With
The range determining means is a plurality of touch areas that are touched by the user for a predetermined time or more, and when the position signal is received from the operating means for the predetermined time or more, a plurality of ranges indicating the touched area for the predetermined time or more. Based on the position signal, a contact operation range of the contact area including all the ranges touched for the predetermined time or more is determined.
Portable information processing device. The position signal includes matrix coordinates in the contact area;
The contact area has a plurality of divided areas divided;
The range determining means determines a combined region obtained by combining the divided regions including at least one of the plurality of matrix coordinates as a contact operation range of the contact region.
The portable information processing apparatus according to claim 4. The position signal includes matrix coordinates in the contact area;
The range determining means obtains a maximum value and a minimum value in a column direction and a maximum value and a minimum value in a row direction from a plurality of the matrix coordinates, and the maximum value and the minimum value in the column direction and the maximum value in the row direction and Determining a contact operation range of the contact area surrounded by the minimum value;
The portable information processing apparatus according to claim 4. The display control means causes the display means to have the same color as the display color of the information displayed in the target range of the display area and the background display color displayed in the target range of the display area.
The portable information processing apparatus according to any one of claims 1 to 6. The display means has a display mask layer above a display layer for displaying information,
The display control means mask-displays the target range in the display mask layer;
The portable information processing apparatus according to any one of claims 1 to 6. The display control means causes the display means to change information displayed in the target range of the display area.
The portable information processing apparatus according to any one of claims 1 to 6. In a display control method for a portable information processing apparatus comprising: display means for displaying information; and operation means having a contact area corresponding to the display area of the display means.
An operation step of detecting a contact operation on the contact region and generating a position signal indicating a position of the contact operation in the contact region;
A range determining step for determining a target range of the display area including all positions of the display area corresponding to each position of the contact operation in the contact area, based on a plurality of the position signals;
A display control step for making the information displayed in the target range of the display area invisible to the display means;
Including
In the range determining step, when the user touches the contact area for a predetermined time or longer and receives the position signal for the predetermined time or longer, the range determination step is based on the plurality of position signals indicating the range touched for the predetermined time or longer. Determining the target range of the display area including all the range of the display area corresponding to the range touched for the predetermined time or longer,
A display control method for a portable information processing apparatus. In a display control method for a portable information processing apparatus comprising: display means for displaying information; and operation means having a contact area corresponding to the display area of the display means.
An operation step of detecting a contact operation on the contact region and generating a position signal indicating a position of the contact operation in the contact region;
A range determining step of determining a contact operation range of the contact area including all positions of the contact operation based on a plurality of the position signals, and determining a target range of the display area corresponding to the contact operation range of the contact area When,
A display control step for making the information displayed in the target range of the display area invisible to the display means;
Including
In the range determining step, when the user touches the contact area for a predetermined time or longer and receives the position signal for the predetermined time or longer, the range determination step is based on the plurality of position signals indicating the range touched for the predetermined time or longer. Determining a contact operation range of the contact area including all the areas touched for the predetermined time or more;
A display control method for a portable information processing apparatus.

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