JP3896740B2 - Mobile phone - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention displays information such as characters.Mobile phoneSuitable for use in environments where there are third parties aroundMobile phoneAbout.
[0002]
[Prior art]
An information display device such as a portable personal computer or an electronic book displays various information on a display unit such as a liquid crystal display. In particular, due to advances in integration technology and mounting technology, these are becoming more and more convenient because of the further reduction in size and weight and the longer battery driving time. In addition, with the advancement of data communication technology, mobile phones that have been reduced in size and weight have rapidly spread, e-mails with characters and images from a server connected to a base station, and on the Internet where computer networks are connected to each other. Various forms of information such as non-voice information can be displayed on the display unit. Opportunities to use them outdoors are increasing due to the improvement in portability of such information display devices and the advancement of various communication services. In particular, in the case of a mobile phone, information that is always carried and displayed on the display unit can be confirmed at any time such as in a train.
[0003]
Thus, as the opportunities for using information display devices outdoors increase, there is an increased risk that information displayed on the display unit can be easily seen by others in public places such as trains. For example, the mobile phone has an address book function that registers other people's phone numbers, etc., and when a list is displayed on the display unit, it is seen by others and the registered phone numbers are stolen. A situation can also occur. That is, in spite of the improvement in secrecy in data communication due to recent network security technology, the information displayed on the display unit may be easily stolen, which is not preferable from the viewpoint of privacy protection.
[0004]
Thus, various information display devices that can prevent such sneaking by others are proposed.
[0005]
For example, Japanese Patent Application Laid-Open No. 9-284700 “Electronic Imaging Device” enables setting of display permission or non-display for each image so that other users cannot see arbitrary image data displayed on the display unit of the information display device. To be able to do so.
[0006]
Utility Model Registration No. 3058477 “Portable Communication Terminal and Viewing Angle Limiting Sheet” is obtained by attaching a hologram film that limits the viewing angle of the display unit to the window of the housing that covers the display unit of the information display device. The information displayed on the display unit from others cannot be seen.
[0007]
[Problems to be solved by the invention]
However, in the information display device to which the technique disclosed in Japanese Patent Laid-Open No. 9-284700 is applied, display is enabled and disabled for each image in advance. Since it is not displayed unless it is newly set to be displayable, a very complicated operation is required. Moreover, it is difficult to set whether or not to display images for unspecified content data on the Internet.
[0008]
In addition, the information display device to which the technology disclosed in Utility Model Registration No. 3058477 is applied always restricts the viewing angle, so that it is inconvenient in operation in an environment where there is no fear of being stolen by others. There's a problem.
[0009]
  Accordingly, an object of the present invention is to appropriately prevent the information displayed on the display unit from being stolen by a third party depending on the surrounding circumstances.Mobile phoneIs to provide.
[0010]
[Means for Solving the Problems]
  In the first aspect of the present invention, (a) a portable device main body, and (b) an audio signal that is disposed inside the device main body and represents a voice between the owner of the device main body and a partner terminal; (C) wireless communication means for wirelessly transmitting and receiving non-speech signals for visually displaying information such as characters, figures, images, etc .; and (c) non-audio signals placed inside the apparatus body and received by the wireless communication means. Display means for displaying visual information consisting of audio signals and predetermined information used for transmission, and (d) arranged inside the apparatus main body, without limiting the display of visual information on the display means (E) mode selection means for selecting one of the first mode to be displayed and the second mode for restricting display to the display means in a predetermined case; Enter to enter by And (f) an input detection means arranged inside the apparatus main body for detecting the input of specific operation information by the input means, and (g) arranged inside the apparatus main body, and the second mode is selected by the mode selection means In this state, the input detection means detects input of operation information.WhenMeans for displaying visual informationDisplay start means to be displayed on the display and (h) display end means to end the display of visual information when the input of operation information is no longer detectedIn a mobile phone.
[0011]
  That is, in the first aspect of the present invention, input of operation information by the input means is detected in a state where the second mode is selected by the mode selection means.Display of visual information on the display means is started, and when the input of operation information is no longer detected, the display of visual information is terminated.I am doing so.
[0018]
  Claim 3In the described invention, (a) a portable device main body, and (b) an audio signal, a character, and a graphic that are arranged inside the device main body and represent voice between the owner of the device main body and the counterpart terminal Wireless communication means for wirelessly transmitting and receiving non-audio signals for visually displaying information such as images, and (c) a non-audio signal disposed inside the apparatus body and received by the wireless communication means, and Display means for displaying visual information composed of predetermined information used for transmission; and (d) a display unit arranged inside the apparatus main body and displaying visual information on the display means without restricting display. Mode selection means for selecting one mode and a second mode for restricting display to the display means in a predetermined case; and (e) storing information displayed on the display means arranged inside the apparatus main body. Display information storage means (F) Input means arranged inside the apparatus main body for inputting operation information by pressing a key, and (g) Input detection arranged inside the apparatus main body for detecting input of specific operation information by the input means. Display information processing means for processing information stored in the display information storage means as visual information in which the display position is two-dimensionally rearranged, and An input is detected by the input detection means in a state where the second mode is selected by the mode selection means.WhenDisplay means for visual information processed by display information processing meansDisplay start means to be displayed on the screen, and (nu) display end means for ending the display of the visual information on the display means when input by the input detection means is no longer detectedIn a mobile phone.
[0019]
  IeClaim 3In the described invention, the input of the operation information by the input unit is detected in a state where the second mode is selected by the mode selection unit.Display of the visual information processed by the display information processing means is started, and when the input by the input detection means is no longer detected, the display of the visual information on the display means is terminated.I am doing so.
[0022]
  Claim 4In the described invention, (a) a portable device main body, and (b) an audio signal, a character, and a graphic that are arranged inside the device main body and represent voice between the owner of the device main body and the counterpart terminal Wireless communication means for wirelessly transmitting and receiving non-audio signals for visually displaying information such as images, and (c) a non-audio signal disposed inside the apparatus body and received by the wireless communication means, and Display means for displaying visual information composed of predetermined information used for transmission; and (d) a display unit arranged inside the apparatus main body and displaying visual information on the display means without restricting display. Mode selection means for selecting one mode and a second mode for restricting display on the display means in a predetermined case; and (e) arranged inside the apparatus main body and inputting operation information by pressing a key. Input means for (F) Arranged inside the apparatus main body and detects input of specific operation information by the input means; (g) Arranged inside the apparatus main body and the second mode is selected by the mode selection means The input is detected by this input detection meansA visible angle changing means for changing the visible angle of the display means, and (h) a visible angle rechanging means for returning the visible angle to the original angle when the input by the input detecting means is no longer detected.In a mobile phone.
[0023]
  IeClaim 4In the described invention, the input of the operation information by the input unit is detected in a state where the second mode is selected by the mode selection unit.The visible angle of the display means is changed, and when the input by the input detection means is no longer detected, the visible angle is returned to the original angle.I am doing so.
[0050]
DETAILED DESCRIPTION OF THE INVENTION
[0051]
【Example】
Hereinafter, the present invention will be described in detail with reference to examples.
[0052]
First embodiment
[0053]
  FIG. 1 shows a first embodiment of the present invention.Mobile phoneIt represents an external front view. thisMobile phoneA display unit 10 includes an antenna 11 for performing data communication with a base station (not shown) and a liquid crystal display (hereinafter abbreviated as LCD) and displays image information such as characters. 12, a speaker 13 for outputting voice and various sounds, a microphone 14 for inputting voice and various sounds,Mobile phoneAnd a key operation unit 15 for inputting ten pieces of operation information. The display unit 12, the speaker 13, the microphone 14, and the key operation unit 15 are disposed on the front surface of the casing. The key operation unit 15Mobile phoneA power key 16 for turning on the power of 10, a hook key 17 for switching the hook state, a cursor position in the display screen of the display unit 12, up, down, left and right direction keys 18 for moving the display area. A selection key 19 for selecting an item at the cursor position in the display area, a dial number key 20 for inputting a dial number “0” to “9”, and other controls such as “*” and “#”. Keys 21 and 22 are provided.
[0054]
  2 is shown in FIG.Mobile phone10 shows an overview of 10 functional block configurations. However, as shown in FIG.Mobile phoneThe same parts as those in FIG. thisMobile phone10 is an antenna 11 for transmitting and receiving radio signals to and from a base station (not shown), a radio unit 30 for performing frequency selection, frequency conversion, and the like of radio signals transmitted and received by the antenna 11, When the received signal received by the unit 30 is an audio signal, it is demodulated and output as an acoustic signal by the receiver 13, and the audio signal converted into an electric signal corresponding to the acoustic signal input from the microphone 14 is modulated. An audio processing unit 31 that is transmitted from the radio unit 30 is provided. Also thisMobile phone10 includes a control unit 32 that controls a call using such a voice signal. Further, the control unit 32 drives the LCD of the display unit 12 via the display driver 33 when the reception signal received by the wireless unit 30 is a non-speech signal, and the character corresponding to the received non-speech signal, Display information such as figures and images. further,Mobile phone10 can switch between the display of received data and a voice call according to the operation information input from the key operation unit 15 detected by the control unit 45.
[0055]
  In the first embodimentMobile phone10 acquires content data on the Internet, for example, via a base station, displays the content on the display unit 12, or exchanges electronic mail with other communication terminals to display the content of the mail It can be displayed on the part 12. Furthermore, operation information by the key operation unit 15 and registration information associated with an address book function in which another person's telephone number is registered in advance can be displayed on the display unit 12.
[0056]
  By the way, in the first embodiment,Mobile phone10 is configured so that a normal mode and a secret mode can be switched to each other as an operation mode by a predetermined setting operation. In the normal mode, display information such as characters, graphics, and images such as acquired content, mail content, operation information or various registration information is displayed on the display unit as usual. On the other hand, in the concealment mode, display information such as the above-mentioned contents, mail contents, registration information, etc., characters, figures, images, etc., only while a specific key of the key operation unit 15, for example, the “*” key 21 is pressed. Can be displayed on the display unit 12.
[0057]
  like thisMobile phone10 includes a central processing unit (hereinafter abbreviated as CPU) (not shown), and is a predetermined unit such as a read only memory (hereinafter abbreviated as ROM). Based on a control program stored in the storage device, the above-described control can be executed.
[0058]
  FIG. 3 shows an outline of the above-described display control processing contents of the mobile phone 10 according to the first embodiment. First, the control unit 32 determines whether the operation mode is set to the normal mode or the secret mode by a predetermined setting operation (step S40). When it is determined that the secret mode is set (step S40: Y), it is subsequently detected whether or not the “*” key 21 as a predetermined specific key is pressed (step S41). When it is detected that the “*” key 21 is pressed (step S41: Y), the content data transmitted / received by the wireless unit 30, the content of the mail, the registered information registered as the address book function, and the dial keyEtc.The display information generated based on the operation information is transmitted to the display driver 33 (step S42). In response to the received display information, the display driver 33 displays information such as characters, figures, and images on the display unit 42 formed of an LCD. Thereafter, the process returns to step S40 (return).
[0059]
When it is not detected in step S41 that the “*” key 21 is pressed (step S41: N), the control unit 32 does not transmit display information to the display unit 12 including the LCD via the display driver 33. The display function is turned off (step S43). Thereafter, the process returns to step S40 again (return).
[0060]
Here, the display function is turned off in step S43, but display information may not be transmitted, and only display of new information may be stopped. Also, the display information is controlled to be transmitted or not by pressing the “*” key, but the direct display function is controlled to be turned on or off by turning the backlight on or off. May be. Since the backlight consumes a large amount of power, it is effective for power saving when the backlight is turned off.
[0061]
  Thus, in the first embodimentMobile phoneThen, a secret mode is provided as an operation mode, and information such as characters, graphics, and images is displayed on the display unit 12 only while a predetermined specific key is pressed. The content displayed on the unit 12 can be prevented from being easily seen. In addition, since the display and deletion are performed by pressing a specific key, the display and deletion can be performed instantaneously. It is possible to prevent the display contents from being stolen.
[0062]
Second embodiment
[0063]
  In the first embodimentMobile phoneIn the second embodiment, the display information itself is controlled so as not to be displayed unless a predetermined specific key is pressed.Mobile phoneThen, when a predetermined specific key is pressed, display contents different from the display contents that should be displayed can be displayed.
[0064]
  In the second embodimentMobile phoneThe external appearance and functional block configuration of the first embodiment shown in FIG. 1 and FIG.Mobile phoneSince it is the same, illustration and description are omitted. However, display control processing executed by the control unit is different.
[0065]
  In such a second embodimentMobile phoneThen, display data of characters, figures, or images is stored in a memory (not shown) in advance, and the display data stored in the memory can be displayed on the display unit only while the specific key is pressed. It can be done.
[0066]
  FIG. 4 shows an example of an image of display data stored in the memory in advance. In this way, only in the second embodiment while the specific key is pressed.Mobile phoneIt is effective as a defensive measure against snooping by displaying on the display unit 45 the content that warns against snooping by a third party such as “Nozokuna” or the display data of the contents threatening the third party.
[0067]
Note that the display data does not need to have a warning or the like as shown in FIG. For example, the original display contents may be display data having display contents that are completely irrelevant and whose meaning contents are far from each other.
[0068]
  FIG. 5 shows the outline of the processing contents of the display control of the mobile phone in the second embodiment. The control unit determines whether the operation mode is set to the normal mode or the secret mode by a predetermined setting operation (step S46). When it is determined that the secret mode is set (step S46: Y), it is subsequently detected whether or not the “*” key as a predetermined specific key is pressed (step S47). When it is detected that the “*” key is pressed (step S47: Y), display data stored in advance in a memory (not shown) is read (step S48) and transmitted to the display driver (step S49). In response to this display data, the display driver displays, for example, on a display unit composed of an LCD.FIG.Display the image shown in. Thereafter, the process returns to step S46 (return).
[0069]
When it is determined in step S46 that the mode is the normal mode (step S46: N), or when it is not detected that the “*” key is pressed in step S47 (step S47: N), both steps are performed again. Return to S46 (return).
[0070]
  Thus, in the second embodimentMobile phoneThen, the display data of another character, figure or image different from the original display contents is stored in a memory (not shown) in advance, and the display data stored in this memory is read only while the specific key is pressed. It was made to display on a display part. As a result, it is possible to prevent unauthorized viewing due to snooping, etc. by preventing the sneaking of surrounding third parties, avoiding the display contents from being stolen, and using the display data for warning or threatening. Can be prevented.
[0071]
Third embodiment
[0072]
  In the second embodimentMobile phoneIn the third embodiment, the display data stored in advance and different from the original display contents are read and displayed only while the specific key is pressed.Mobile phoneIn this case, the display information displayed on the display unit is processed and displayed on the display unit only while the specific key is pressed.
[0073]
  In the third embodimentMobile phoneThe external appearance and functional block configuration of the first embodiment shown in FIG. 1 and FIG.Mobile phoneSince it is the same, illustration and description are omitted. However, display control processing executed by the control unit is different.
[0074]
  In such a third embodimentMobile phoneThen, the display information to be displayed on the display unit is stored in the memory each time, and the current display information is taken out from the memory as the display contents to be displayed only while the specific key is pressed, Can be processed and displayed on the display unit as display information again.
[0075]
  FIG. 6 shows the third embodiment.Mobile phoneThis is an outline of the processing content of the display control. The control unit determines whether the operation mode is set to the normal mode or the secret mode by a predetermined setting operation (step S50). When it is determined that the concealment mode is set (step S50: Y), it is subsequently detected whether or not the “*” key as a predetermined specific key is pressed (step S51). When it is detected that the “*” key has been pressed (step S51: Y), display information corresponding to the display content of the current display unit stored in a memory (not shown) is extracted and processed (step S52). .
[0076]
For example, when the current display content is a character, the control unit processes the original display character into new display information in which the order of characters to be displayed is changed vertically and horizontally based on a predetermined number sequence. Alternatively, based on the random number calculated each time, it is processed into new display information in which the order of characters to be originally displayed is changed vertically and horizontally. In addition, when the current display content is a dot image such as a figure or an image, the display area of the display unit is divided into blocks in units of several dots determined in advance both vertically and horizontally, and displayed based on a predetermined number sequence or random number. It is processed into display information in which the position is exchanged vertically, horizontally, and horizontally in units of blocks.
[0077]
When the display information is processed in this way in step S52, the control unit transmits the display information to the display driver again (step S53). The display driver displays the information on a display unit composed of an LCD corresponding to the display information. Thereafter, the process returns to step S50 (return).
[0078]
When it is determined in step S50 that the mode is the normal mode (step S50: N), or when it is not detected that the “*” key is pressed in step S51 (step S51: N), both steps are performed again. Return to S50 (return).
[0079]
  FIG. 7 shows an example of the image of the display unit before and after processing the display information in the third embodiment described above. FIG. 11A shows the third embodiment.Mobile phoneAn example of an image of display contents that should be originally displayed on the display unit is shown. FIG. 5B shows the third embodiment.Mobile phoneAn example of the image of the display content displayed according to the processed display information in the display part is shown. That is, as shown in FIG. 6A, for example, a character string “Necessary drawing and abstract must be attached to the application form” is displayed on the display unit 55 as display contents to be originally displayed. It shall be. Here, when the “*” key is pressed as the specific key, the display information corresponding to the display content shown in FIG. 5A accumulated each time is taken out of the memory, and the character is displayed in accordance with a predetermined number sequence or random number. For example, new display information having a character string “cannot be summarized in a document attached to the application drawing. That is, when the display contents on the display unit 55 are compared, as shown in FIG. 5B, for example, the characters “figure” are arranged from the third digit of the second row to the third digit of the first row, An image having a semantic content different from the original display content can be displayed on the display unit.
[0080]
  Thus, in the third embodimentMobile phoneThen, the display information to be displayed on the display unit is accumulated in the memory each time, and while the specific key is pressed, the current display information is taken out from the memory as the display content to be displayed, and a predetermined number sequence Alternatively, processing is performed by changing the display position based on random numbers, and the display information is displayed again as display information. This eliminates the need for previously storing characters, figures, and the like different from the display contents in the memory as in the second embodiment. Also, each time the processing results are displayed differently, in contrast to when the same screen is always displayed to prevent snooping, the confidential information is displayed to the surrounding third parties. May be less known and may reduce the chance of a third party's intentional snooping.
[0081]
Fourth embodiment
[0082]
  In the fourth embodimentMobile phoneChanges the visible angle of the LCD that constitutes the display unit to prevent the content displayed on the display unit from being stolen by a third party.
[0083]
  In the fourth embodimentMobile phoneThe external appearance and functional block configuration of the first embodiment shown in FIG. 1 and FIG.Mobile phoneSince it is the same, illustration and description are omitted. However, display control processing executed by the control unit is different.
[0084]
  In such a fourth embodimentMobile phoneIn this case, the contrast is changed to change the visible angle of the LCD constituting the display unit only while a predetermined specific key is pressed.
[0085]
  FIG. 8 shows the fourth embodiment.Mobile phoneThis is an outline of the processing content of the display control. The control unit determines whether the operation mode is set to the normal mode or the secret mode by a predetermined setting operation (step S60). When it is determined that the secret mode is set (step S60: Y), it is subsequently detected whether or not the “*” key as a predetermined specific key is pressed (step S61). When it is detected that the “*” key has been pressed (step S61: Y), the counter electrode of the LCD constituting the display unit is between the opposing electrodes.AppliedThe display driver is instructed to change the first voltage value thus set to a predetermined second voltage value (step S62).
[0086]
  In LCD, two counter electrodes with liquid crystal interposed are arranged in a matrix, and voltage is applied between these electrodes.AppliedBy doing so, the molecular orientation constituting the liquid crystal is changed, and the transmitted light is adjusted. So here, between these counter electrodesAppliedBy changing the voltage to be changed, the molecular orientation constituting the liquid crystal can be slightly changed, the contrast can be controlled, and the visible angle in the display portion can be changed.
[0087]
  In step S61AppliedThe display driver instructed to change the voltage is connected between the counter electrodes of the LCD that constitutes the display unitAppliedThe first voltage value to be changed is changed to the second voltage value so that the contrast in the display unit is changed as described above. Thereafter, the control unit returns to step S60 (return).
[0088]
  FIG. 9 shows the fourth embodiment.Mobile phoneFIG. However, in the first embodiment shown in FIG.Mobile phoneThe same parts as those in FIG. Thus, in the fourth embodimentMobile phone70 has a visible angle 71 when the specific key “*” is not depressed, but is changed to the visible angle 72 by changing the contrast as described above. Thereby, it is possible to prevent sneaking from surrounding third parties.
[0089]
Returning to FIG. When it is determined in step S60 that the mode is the normal mode (step S60: N), or when it is not detected that the “*” key is pressed in step S61 (step S61: N), both steps are performed again. Return to S60 (return).
[0090]
  Thus, in the fourth embodimentMobile phoneThen, since the visible angle of the LCD constituting the display unit is changed only while a predetermined specific key is pressed, it is possible to prevent snooping from surrounding third parties by changing the contrast. .
[0091]
First modification
[0092]
  In the first embodimentMobile phoneIn the above description, the display content is displayed on the display unit only when the specific key is pressed. However, the present invention is not limited to this. In the first modificationMobile phoneThen, when a predetermined specific key is pressed, display contents such as characters, figures, images, etc. displayed on the display unit are erased.
[0093]
  In the first modificationMobile phoneSince the external appearance and functional block configuration are the same as those of the cellular phone in the first embodiment shown in FIGS. 1 and 2, illustration and description thereof are omitted. However, regarding display control executed by the control unit, when a specific key, for example, “*” key is pressed in FIG. 3, transmission of display information is stopped, and “*” key is pressed. If the display information is transmitted, it can be easily realized.
[0094]
Second modification
[0095]
  In the first to fourth embodiments and the first modificationMobile phoneAs a specific key, as shown in FIG.Mobile phoneFor example, the “*” key in the key operation unit on the front side of the housing is assigned. However, the present invention is not limited to this. In the second variantMobile phoneIs provided with a dedicated display control key on the side of the housing.
[0096]
  FIG. 10 shows the second modification.Mobile phoneIt represents an external front view. However, in the first embodiment shown in FIG.Mobile phoneThe same parts as those in FIG. In the second variantMobile phoneReference numeral 80 denotes an antenna 11 for performing data communication with a base station (not shown) via a wireless line, a display unit 12 configured by an LCD and displaying image information such as characters, and for outputting voice and various sounds. A speaker 13 and a microphone 14 for inputting voice and various sounds;Mobile phoneA key operation unit 81 for inputting 80 operation information. The key operation unit 81Mobile phoneA power key 16 for turning on the power of 80, a hook key 17 for switching the hook state, and a cursor key in the display screen of the display unit 12 and four direction keys 18 for moving the display area. A selection key 19 for selecting an item at the cursor position in the display area, a dial number key 20 for inputting a dial number “0” to “9”, and other controls such as “*” and “#”. Keys 21, 22 andMobile phoneAt least one of the display control keys 82 and 83 is provided on the side surface of the casing 80.
[0097]
  In the second variantMobile phoneThe functional block configuration of the first embodiment shown in FIG.Mobile phoneSince it is the same, illustration and description are omitted. However, the display control executed by the control unit is detected when the “*” key is pressed as the specific key in FIG. 3, and this is detected by either one of the display control keys 82 and 83. If pressing is detected, it can be easily realized.
[0098]
  Thus, in the second modification exampleMobile phoneSince the display control key on the front of the housing is used to conceal the display content displayed on the display unit 12 as described in the first to fourth embodiments and the first modification, The operator can operate with one hand, improve the operability, and can instantly conceal the display contents when it is found that a third party in the vicinity is looking around.
[0099]
  In the first to fourth embodiments, the first and second modifications,Mobile phoneIn the above description, the display content displayed on the display unit is kept secret while a predetermined specific key is pressed. However, the present invention is not limited to this. For example, when the specific key is pressed, the display contents are concealed as described in the first to fourth embodiments, the first and second modifications, and the original display is displayed when the specific key is pressed again. The contents may be displayed on the display unit. In this case, the control unit may detect the pressing of the specific key and conceal the display content, and then detect the pressing of the specific key again to display the original display content.
[0100]
  In the first to fourth embodiments and the first modification,Mobile phoneHas been described as concealing the display contents made up of characters, figures, images, etc. displayed on the display unit when one specific key is pressed. For example, the "*" key and the "#" By assigning two keys, it is possible to conceal the above-described display contents only when both are pressed and to prevent erroneous operations. Also, as two specific keys, two direction keys for scrolling the display unit 12 shown in FIG. 1 or FIG. 11 in the left-right direction or two direction keys for scrolling in the up-down direction are assigned, thereby improving the operability.Mobile phoneCan be provided. Furthermore, assigning two or more keys as specific keys further increases the effect of preventing erroneous operations.
[0101]
  In the second modification exampleMobile phoneHas been described as concealing the display content made up of characters, figures, images, etc. displayed on the display unit when one of the display control keys 82, 83 is pressed as the specific key. By assigning both of the display control keys 82 and 83 on the side of the housing, the above-mentioned display content is concealed only when both are pressed, and erroneous operation in a situation where it is operated while being held in one hand is prevented. Will be able to.
[0102]
In addition, when one specific key is pressed, the original display contents including characters, figures, images, etc. are displayed on the display unit for a certain period of time, and two or more predetermined specific keys are pressed simultaneously. Sometimes, the display contents displayed on the display unit may be concealed immediately as described in the first to fourth embodiments. Two keys in opposite directions can more effectively prevent erroneous operations. As a result, it is possible to prevent sneaking from surrounding third parties and to reduce the burden of the operator pressing the key.
[0104]
【The invention's effect】
  As described above, according to the first aspect of the present invention, the input of the operation information by the input unit is detected in the state where the second mode is selected by the mode selection unit.Visual information is displayed on the display means, and when the input of operation information is no longer detected, the display of visual information is terminated.Since it did in this way, when it is stolen by the surrounding third party, it is possible to prevent the display contents from being stolen by a third party by immediately deleting the display contents.
[0106]
  Also,Claim 2According to the described invention, the input of the operation information by the input unit is detected in a state where the second mode is selected by the mode selection unit.When the display image stored in the storage means is displayed on the display means and the input of the specific operation information is no longer detected.Display imageEnd display ofSince it did in this way, it is possible to prevent the sneaking of surrounding third parties and prevent the display contents from being stolen.
[0108]
  Also,Claim 3According to the described invention, the input of the operation information by the input unit is detected in a state where the second mode is selected by the mode selection unit.Display of the visual information processed by the display information processing means is started, and when the input by the input detection means is no longer detected, the display of the visual information on the display means is terminated.Since it did in this way, it becomes unnecessary to memorize | store the display image for concealing display content previously, and memory capacity can be reduced.
[0110]
  Also,Claim 4According to the described invention, the input of the operation information by the input means is detected in the state where the second mode is selected.The visible angle of the display means is changed, and when the input by the input detection means is no longer detected, the visible angle is returned to the original angle.As a result, it is possible to easily prevent the display contents of the display means from being seen from surrounding third parties.
[Brief description of the drawings]
FIG. 1 shows a first embodiment of the present invention.Mobile phoneIt is a front view which shows the external appearance.
FIG. 2 in the first embodimentMobile phoneIt is a block diagram which shows the functional structure of.
FIG. 3 shows the first embodiment.Mobile phoneIt is a flowchart which shows the outline | summary of the processing content of display control of.
FIG. 4 is an explanatory diagram showing an example of an image of display data stored in advance in the second embodiment.
FIG. 5 shows the second embodiment.Mobile phoneIt is a flowchart which shows the outline | summary of the processing content of display control of.
FIG. 6 shows the third embodiment.Mobile phoneIt is a flowchart which shows the outline | summary of the processing content of display control of.
FIG. 7 is an explanatory diagram illustrating an example of an image of a display unit before and after processing of display information according to a third embodiment.
FIG. 8 shows the fourth embodiment.Mobile phoneIt is a flowchart which shows the outline | summary of the processing content of display control of.
FIG. 9 shows a fourth embodiment of the present invention.Mobile phoneIt is explanatory drawing for demonstrating the visible angle of.
FIG. 10 shows a second modified example.Mobile phoneIt is a front view which shows the external appearance.
[Explanation of symbols]
    10Mobile phone
    11 Antenna
    12 Display section
    13 Receiver
    14 Microphone
    15 Key operation section
    16 Power key
    17 Hook key
    18 direction keys
    19 Select key
    20 Dial number key
    21, 22 Control key
    30 Radio section
    31 Voice processor
    32 Control unit
    33 Display driver

Claims (5)

A portable device body;
An audio signal representing voice and a non-speech signal for visually displaying information such as characters, figures, images, etc. are wirelessly arranged between the owner of the apparatus body and the counterpart terminal. Wireless communication means for transmitting and receiving using
Display means arranged inside the apparatus main body and displaying visual information comprising the non-voice signal received by the wireless communication means and predetermined information used for transmission;
Either a first mode which is arranged inside the apparatus main body and displays the visual information on the display means without restricting display, or a second mode which restricts display on the display means in a predetermined case. Mode selection means for selecting
An input means arranged inside the apparatus body for inputting operation information by pressing a key;
An input detection unit disposed inside the apparatus main body and detecting input of specific operation information by the input unit;
The visual information is displayed on the display unit when the input of the operation information is detected by the input detection unit in a state where the second mode is selected by the mode selection unit . Display start means;
A display ending means for ending the display of the visual information when the input of the operation information is no longer detected . A portable device body;
An audio signal representing voice and a non-speech signal for visually displaying information such as characters, figures, images, etc. are wirelessly arranged between the owner of the apparatus body and the counterpart terminal. Wireless communication means for transmitting and receiving using
Display means arranged inside the apparatus main body and displaying visual information comprising the non-voice signal received by the wireless communication means and predetermined information used for transmission;
Either a first mode which is arranged inside the apparatus main body and displays the visual information on the display means without restricting display, or a second mode which restricts display on the display means in a predetermined case. Mode selection means for selecting
Storage means arranged inside the apparatus body and storing a preset display image;
An input means arranged inside the apparatus body for inputting operation information by pressing a key;
An input detection unit disposed inside the apparatus main body and detecting input of specific operation information by the input unit;
Said device being arranged inside the main body, wherein the input of the specific operation information by the input detecting means in a state in which the second mode is selected is stored in the storage means when detected by said mode selecting means Display starting means for displaying a display image on the display means ;
A display ending unit for ending the display of the display image when the input of the specific operation information is no longer detected . A portable device body;
An audio signal representing voice and a non-speech signal for visually displaying information such as characters, figures, images, etc. are wirelessly arranged between the owner of the apparatus body and the counterpart terminal. Wireless communication means for transmitting and receiving using
Display means arranged inside the apparatus main body and displaying visual information comprising the non-voice signal received by the wireless communication means and predetermined information used for transmission;
Either a first mode which is arranged inside the apparatus main body and displays the visual information on the display means without restricting display, or a second mode which restricts display on the display means in a predetermined case. Mode selection means for selecting
Display information storage means arranged inside the apparatus main body and for storing information displayed on the display means;
An input means arranged inside the apparatus body for inputting operation information by pressing a key;
An input detection unit disposed inside the apparatus main body and detecting input of specific operation information by the input unit;
Display information processing means arranged inside the apparatus main body and processing the information stored in the display information storage means as visual information in which the display position is rearranged two-dimensionally;
The visual information processed by the display information processing unit when the input is detected by the input detection unit in a state where the second mode is selected by the mode selection unit is arranged inside the apparatus main body. Display start means for displaying on the display means;
A display ending unit for terminating display of the visual information on the display unit when the input by the input detection unit is no longer detected . A portable device body;
An audio signal representing voice and a non-speech signal for visually displaying information such as characters, figures, images, etc. are wirelessly arranged between the owner of the apparatus body and the counterpart terminal. Wireless communication means for transmitting and receiving using
Display means arranged inside the apparatus main body and displaying visual information comprising the non-voice signal received by the wireless communication means and predetermined information used for transmission;
Either a first mode which is arranged inside the apparatus main body and displays the visual information on the display means without restricting display, or a second mode which restricts display on the display means in a predetermined case. Mode selection means for selecting
An input means arranged inside the apparatus body for inputting operation information by pressing a key;
An input detection unit disposed inside the apparatus main body and detecting input of specific operation information by the input unit;
Visible angle changing means that is arranged inside the apparatus main body and changes the visible angle of the display means when the input is detected by the input detecting means in a state where the second mode is selected by the mode selecting means. ,
Visible angle re-changing means for returning the visible angle to the original angle when the input by the input detecting means is no longer detected . 2. The apparatus according to claim 1 , further comprising two or more input means for inputting operation information by pressing a key separately from each other, and an input detection means for detecting input of operation information by all of the input means. 4. The mobile phone according to any one of 4 above.

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