JP5279038B2 - Image display system and image display method - Google Patents

Description

  The present invention relates to an image display system and an image display method.

  Since the image display system has a large image capacity, it may not be possible to display all of the image on the display unit. In this case, the image area that could not be displayed is displayed on the display unit, for example, when the operator operates the scroll displayed on the display unit with a mouse or the like.

  By the way, in Patent Documents 1 and 2, the position information when the image display device is moved is calculated based on the detection result of the acceleration sensor, and the image is enlarged and displayed based on the calculated position information. A display system is disclosed.

  In Patent Document 3, a positional relationship between the first display device and the second display device is detected using an angle sensor or a distance sensor, and an image to be displayed on the second display device is adjusted based on the positional relationship. An image display system is disclosed.

JP 2002-7027 A JP 2008-77655 A Japanese Patent Laid-Open No. 11-85117

The image display systems of Patent Documents 1 and 2 do not disclose a technical idea for displaying an image region that could not be displayed on the first display device on the second display device.
In the image display system of Patent Literature 3, an image displayed on the second display device is determined in advance, and a desired region in the image region that could not be displayed on the display unit of the first display device is displayed sensuously. It is not a configuration that can.

  The objective of this invention is providing the image display system and image display method which solve the subject mentioned above.

  An image display system according to the present invention includes a storage unit that stores image information, a first communication unit, a first display device that displays a part of the image information, and the first communication unit. A second communication device that realizes communication between the first display device, the second display device that displays image information that could not be displayed on the first display device, and has portability, and the first display device A position detection unit for detecting the position of the second display device with respect to the image, and a position of the second display device that causes the first display device to display a part of the image information and that is detected by the position detection unit. A control unit configured to extract an image region to be displayed on the second display device based on the information and to display the extracted image region on the second display device.

  The image display method according to the present invention includes a step of detecting position information of the second display device relative to the first display device, a step of displaying a part of the image information on the first display device, and the second The position information of the display device is subjected to coordinate conversion so as to correspond to the coordinate information given to the image information, and based on the converted coordinate information, an image region to be displayed on the second display device is extracted, And displaying the extracted image area on the second display device.

  ADVANTAGE OF THE INVENTION According to this invention, the image display system and image display method which can display the desired area | region in the image area which could not be displayed on the display part of the 1st display apparatus sensuously can be provided.

1 is a diagram schematically showing an image display system according to a first embodiment of the present invention. 1 is a block diagram illustrating an image display system according to a first embodiment of the present invention. It is explanatory drawing of the positional information on a 2nd display apparatus. It is explanatory drawing for calculating the arrangement | positioning angle of the 2nd display apparatus with respect to a 1st display apparatus. It is explanatory drawing of a structure of a ranging sensor. It is a flowchart figure which shows the image display method of the 1st Embodiment of this invention. It is a figure which shows schematically the image display system of the 2nd Embodiment of this invention.

  An image display system and an image display method according to an embodiment of the present invention will be described. However, the present invention is not limited to the following embodiment. In addition, for clarity of explanation, the following description and drawings are simplified as appropriate.

<First Embodiment>
As shown in FIG. 1, the image display system according to the present embodiment includes a first display device 100 and a second display device 200.

  The first display device 100 is, for example, an image display device. As shown in FIG. 2, the first display device 100 includes a display unit 110, a storage unit 120, a control unit 130, an optical sensor 140, and a communication unit 150. These elements are stored in the housing.

  The display unit 110 includes, for example, a general liquid crystal display. The storage unit 120 stores a program for controlling the operation of the first display device 100, image information to be displayed on the first and second display devices 100 and 200, and the like.

  The control unit 130 is an arithmetic processing unit including a CPU (Central Processing Unit), a RAM (Random Access Memory), and the like. The control unit 130 reads the program from the storage unit 120 to control the first display device 100, or reads image information from the storage unit 120 based on, for example, the operation of the second display device 200, and performs the first display. The image information is displayed on the display device 100. At this time, the control unit 130 gives display coordinate system information (coordinate information) to the image information, as in a general image display device. And the control part 130 displays a part of image information on the display part 110 based on the coordinate information of the said image information. In this case, since other areas of the image area that could not be displayed on the display unit 110 of the first display device 100 cannot be displayed, the control unit 130 of the present invention transmits the second image transmitted from the second display device 200. Based on the position information of the display device 200, an image region that could not be displayed on the display unit 110 of the first display device 100 is continuous with the coordinate information given to the image region displayed on the display unit 110. Give coordinate information. Then, the control unit 130 extracts an image region to be displayed on the second display device 200 from the image information, and causes the second display device 200 to display the extracted image region.

  More specifically, light reception information is input from the optical sensor 140 to the control unit 130. The control unit 130 calculates the arrangement angle of the second display device 200 with respect to the first display device 100 based on the received light information. That is, the control unit 130 according to the present embodiment functions as a calculation unit that calculates the arrangement angle of the second display device 200 with respect to the first display device 100 in the position detection unit referred to in the present invention.

  Further, distance information of the second display device 200 with respect to the first display device 100 is transmitted from the second display device 200 to the control unit 130. The control unit 130 calculates the position information of the second display device 200 based on the arrangement angle information and the distance information of the second display device 200 with respect to the first display device 100. Here, for example, the control unit 130 calculates the position of the lower left corner of the display unit 210 of the second display device 200 as position information of the second display device 200 from these pieces of information.

  The control unit 130 converts the position information of the second display device 200 so as to correspond to the coordinate information given to the image information, and displays it on the second display device 200 based on the converted coordinate information. The image area to be extracted is extracted. The control unit 130 transmits the extracted image area to the second display device 200 via the communication unit 150. That is, as shown in FIG. 3, for example, if the display unit 110 of the first display device 100 is 20 inches, the length on the long side is 15.625 inches, and therefore, 1 inch≈82 pixels can be calculated. Therefore, the coordinates of the upper left corner of the display unit 110 of the first display device 100 are “x, y = 0,1024”, and the coordinates of the lower right corner of the display unit 110 are “x, y = 1280,0”. The coordinates of the upper right end of the part 110 are “x, y = 1280, 1024”. In such a coordinate system, the control unit 130 controls the second display device with respect to the first display device 100 based on the arrangement angle information and the distance information of the second display device 200 with respect to the first display device 100. Calculate how many inches the 200 is apart. For example, the control unit 130 calculates that the second display device 200 is separated from the first display device 100 by 10 inches in the x-axis direction and 8 inches in the y-axis direction. Accordingly, the control unit 130 can calculate the coordinates of the lower left corner of the display unit 210 of the second display device 200 as “x, y = 1280 + 820, 1024 + 656”.

  The optical sensor 140 forms a position detection unit together with the distance measuring sensor 250 of the second display device 200. The optical sensor 140 is an optical sensor including an image sensor such as a charge coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS). As shown in FIG. 4, the optical sensor 140 is disposed on the left and right side portions and the upper portion of the first display device 100 so as to receive light emitted from the distance measuring sensor 250. When the light sensor 140 receives the emitted light from the distance measuring sensor 250 of the second display device 200, the light sensor 140 outputs this light reception information to the control unit 130. The control unit 130 can calculate the arrangement angle of the second display device 200 with respect to the first display device 100 based on the received light information.

  The communication unit 150 is a communication unit that realizes communication with the second display device 200. The communication method may be either a wired communication method or a wireless communication method, but it is preferable to adopt a wireless communication method in consideration of the portability of the second display device 200.

  The second display device 200 is an information communication terminal such as a PDA (Personal Digital Assistants). The second display device 200 includes a display unit 210, an operation unit 220, a storage unit 230, a control unit 240, a distance measuring sensor 250, and a communication unit 260. These elements are stored in the housing.

  The display unit 210 includes, for example, a general liquid crystal display. The operation unit 220 is preferably a so-called touch panel type operation unit configured integrally with the display unit 210. However, an operation unit such as a keyboard may be used. When the operator operates the operation unit 220, the first and second display devices 100 and 200 are operated. For example, the display unit 210 (operation unit 220) displays a list of image information stored in the storage unit 120 of the first display device 100. The operator operates the operation unit 220 to select image information to be displayed on the first and second display devices 100 and 200 from the list. The operation unit 220 outputs such operation information to the control unit 240. The storage unit 230 stores a program that controls the operation of the second display device 200.

  The control unit 240 is an arithmetic processing unit including a CPU (Central Processing Unit), a RAM (Random Access Memory), and the like. Detection information is input to the control unit 240 from the distance measuring sensor 250. The control unit 240 reads out a program from the storage unit 230 and controls the second display device 200, or the second display device 200 with respect to the first display device 100 based on light reception information from the distance measuring sensor 250. The distance information is calculated and transmitted to the first display device 100 via the communication units 150 and 260.

As the distance measuring sensor 250, for example, a distance measuring sensor that measures a distance to an object using a triangulation method can be used. That is, the distance measuring sensor 250 includes an LED 251 and an optical sensor 252 that are light sources, as shown in FIGS. When the LED 251 of the distance measuring sensor 250 emits light, the light sensor 252 receives the reflected light hitting the first display device 100. The optical sensor 252 includes a plurality of image sensors, and further includes slits. If the distance between the distance measuring sensor 250 and the first display device 100 is different, the position of the optical sensor 252 that corresponds to the image sensor differs. It becomes possible to measure the distance. However, the configuration of the distance measuring sensor 250 is not limited to this, and a known distance measuring sensor can be used. The distance measuring sensor 250 outputs light reception information to the control unit 240.
The communication unit 260 is a communication unit that realizes communication with the first display device 100.

Using the image display system having such a configuration, an image display method is realized as shown in FIG.
The operator operates the operation unit 220 of the second display device 200 to select image information to be displayed on the first and second display devices 100 and 200. Then, the operator displays the second image area to be displayed on the display unit 210 of the second display device 200 out of the image information that cannot be displayed on the display unit 110 of the first display device 100. The display device 200 is moved (S1). At this time, the distance measuring sensor 250 of the second display device 200 emits light from the LED 251 in order to measure the distance of the second display device 200 with respect to the first display device 100 (S2). The optical sensor 140 of the first display device 100 receives the emitted light from the distance measuring sensor 250 and outputs the received light information to the control unit 130. The control unit 130 calculates the arrangement angle of the second display device 200 with respect to the first display device 100 from the received light information (S3).

  On the other hand, the distance measuring sensor 250 of the second display device 200 receives the light emitted from the LED 251 by the optical sensor 252 and outputs the received light information to the control unit 240. The control unit 240 calculates the distance of the second display device 200 with respect to the first display device 100 based on the received light information, and sends it to the control unit 130 of the first display device 100 via the communication units 150 and 260. Transmit (S4).

The control unit 130 of the first display device 100 calculates position information of the second display device 200 from the arrangement angle information and the distance information of the second display device 200 with respect to the first display device 100, and the second display device 100 The position information of the display device 200 is subjected to coordinate conversion so as to correspond to the coordinate information given to the image information, and an image region to be displayed on the second display device 200 is extracted based on the converted coordinate information (S5). . The control unit 130 transmits the extracted image area to the control unit 240 of the second display device 200 via the communication units 150 and 260 (S6).
The control unit 240 of the second display device 200 displays the extracted image information on the display unit 210 (S7).

According to the image display system and the image display method described above, a desired region in the image region that could not be displayed on the display unit 110 of the first display device 100 as the operator moved the second display device 200. It can be displayed sensuously.
Thereby, according to the said image display system and the image display method, improvement of a user interface and realization of a highly confidential multi-display can be achieved.

  In other words, in general, when displaying image information, a part of the image information that does not fit in the screen of the display device is cut, and in order to display it, the image information is reduced or scrolled. It is moved and displayed on the screen. On the other hand, in the image display system and the image display method, by displaying a part of the image information on the second display device, a desired image can be easily understood by the user without performing a menu operation. Part of the information can be displayed.

  In addition, a general multi-display has a display similar to the main display, but with this, a user who refrains from always displaying information such as e-mails that he / she does not want to be seen by an unspecified number of people. It was. On the other hand, in the present embodiment, the second display device is moved in accordance with the image area desired to be displayed on the second display device, so that the peep is prevented.

  In the case where the second display device 200 is configured by a portable information terminal, it is preferable that the operation mode and the display mode can be selected based on the operation of the operation unit 220. That is, the second display device 200 controls (operates) the first and second display devices 100 and 200 based on the operation of the operation unit 220 in the operation mode. On the other hand, the second display device 200 displays the extracted image area on the display unit 210 in the display mode.

<Second Embodiment>
In the first embodiment, the position information of the second display device 200 relative to the first display device 100 is calculated using the optical sensor 140 and the distance measuring sensor 250, but this is not restrictive.
That is, as shown in FIG. 7, the second display device 200 includes a movement distance detection sensor 270 that detects a two-dimensional movement distance such as a ball-type or optical mouse. The movement distance detection sensor 270 outputs the detected movement distance information to the control unit 240. The control unit 240 transmits to the control unit 130 of the first display device 100 via the communication units 150 and 260. Based on the movement distance information, the control unit 130 calculates, for example, position information of the lower left end of the display unit 210 of the second display device 200 from the lower left end of the display unit 110. The control unit 130 extracts an image area to be displayed on the second display device 200 based on the position information. Other operations are the same as those of the image display system according to the first embodiment. Thereby, the image display system of the present embodiment can also enjoy the same effects as the image display system of the first embodiment.

The present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.
In the above embodiment, image information to be displayed on the first and second display devices is stored in the storage unit 120 of the first display device 100, but is stored in the storage unit 230 of the second display device 200. May be.

  In the above embodiment, the control unit 130 of the first display device 100 calculates the position information of the second display device 200 with respect to the first display device 100, but the control unit 240 of the second display device 200. May be calculated.

  In the above embodiment, the position information of the second display device 200 relative to the first display device 100 is calculated using the optical sensor 140 and the distance sensor 250, but a distance sensor such as a laser range sensor is used. Or may be calculated based on an image acquired using an image acquisition unit such as multi-vision.

100 First display device 110 Display unit 120 Storage unit 130 Control unit 140 Optical sensor 150 Communication unit 200 Second display device 210 Display unit 220 Operation unit 230 Storage unit 240 Control unit 250 Ranging sensor, 251 LED, 252 Optical sensor 260 Communication unit 270 Movement distance detection sensor

Claims (3)

A storage unit for storing image information;
A first display device having a first communication unit and displaying a part of the image information;
A second display device that has a second communication unit that realizes communication with the first communication unit, displays image information that could not be displayed on the first display device, and has portability; ,
Based on a distance sensor mounted on one of the first or second display device, an optical sensor mounted on the other side for detecting light emitted from the distance sensor, and information from the distance sensor The distance from the first display device to the second display device is calculated, and the arrangement angle of the second display device with respect to the first display device is calculated based on information from the optical sensor. A position detection unit having a calculation unit ;
An image area to be displayed on the second display device based on the position information of the second display device detected by the position detection unit and displaying a part of the image information on the first display device. A controller that extracts and displays the extracted image region on the second display device;
Equipped with a,
The controller converts the position information of the second display device so as to correspond to the coordinate information given to the image information, and based on the converted coordinate information, an image display system for extracting an image region Ru is displayed. The second display device is a portable information terminal including an operation unit and a display unit,
The portable information terminal has an operation mode and a display mode,
During the operation mode of the portable information terminal, the first display device is controlled based on the operation of the operation unit,
The mobile information in the display mode of the terminal, an image display system according to claim 1, wherein the displaying the extracted image area on the display unit. Detecting position information of the second display device relative to the first display device;
Displaying part of the image information on the first display device;
The position information of the second display device is subjected to coordinate conversion so as to correspond to the coordinate information given to the image information, and an image area to be displayed on the second display device is displayed based on the converted coordinate information. Extracting and displaying the extracted image area on the second display device;
Equipped with a,
In the step of detecting the position information, a distance from the first display device to the second display device based on information from a distance measuring sensor mounted on one of the first or second display devices. It is calculated, and is mounted to the other, based on information from the optical sensor which detects the light emitted from the light measuring sensor, you calculate the placement angle of the second display device relative to the first display device image Display method.