JP2013156345A - Information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information display device which performs large screen display with multiple separate displays and improves the efficiency of installation space.SOLUTION: The information display device performs information display using a display group including displays arranged in arbitrary positions and directions, and each having a rotation control unit 2 capable of rotating the display separately. The information display device includes: a geometry matching control part 51 for setting a virtual screen for each display 1, so as to form an integrated display screen with the whole of the display group, according to predetermined display effect; and a rotation correction cooperation control part 6 for, on the basis of the virtual screen set by the geometry matching control part 51, controlling the rotation control units 2 and/or correcting display images of the displays 1.

Description

  The present invention relates to an information display device that displays a large screen by combining a plurality of displays.

  Conventionally, an information display device that displays a large screen by combining a plurality of displays is known (see, for example, Patent Document 1). In the apparatus disclosed in Patent Document 1, a virtual display area is specified based on a viewer's viewpoint, and a conversion coefficient for each screen is obtained and displayed in order to display a video without distortion in the virtual display area. At this time, the deforming part performs coordinate transformation (= corresponding to projective transformation).

JP 2005-115069 A

  However, the conventional information display device disclosed in Patent Document 1 performs large screen display using a device in which a plurality of displays are integrated. For this reason, for example, there is a problem that large screen display cannot be performed using a plurality of individual displays arranged in various positions and orientations according to the installation location.

  The present invention has been made to solve the above-described problems, and is an information display device that can perform a large screen display using a plurality of individual displays and can further improve the installation space. The purpose is to provide.

  An information display device according to the present invention is an information display device that displays information using a display group including a display that is arranged at an arbitrary position and orientation and includes a rotation control device that can be individually rotated. According to the display effect, the geometric matching control unit that sets the virtual display surface for each display and the geometric matching control unit set the virtual display surface for each display so as to form a uniform display screen for the entire display group A rotation correction cooperation control unit that controls the rotation control device and / or corrects the display image on the display based on the virtual display screen is provided.

  According to this invention, since it comprised as mentioned above, a big screen display can be performed using a some separate display, and installation space can be made more efficient.

It is a block diagram which shows the S / W structure of the information display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the H / W structure of the information display apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the information display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the example of arrangement | positioning of the display group used with the information display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the example of a connection big screen display by the information display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the example of a cooperation big screen display using the display mounted in the mobile body by the information display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the example of 3D image display by the information display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows rotation of the display by the information display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the virtual rotation of the display image of the display by the information display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the operation | movement which coordinated the rotation of the display and the virtual rotation of a display image by the information display apparatus which concerns on Embodiment 1 of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing the S / W configuration of the information display apparatus according to Embodiment 1 of the present invention.
The information display device displays information using a display group having an arbitrary shape, size, and performance arranged at an arbitrary position and orientation for the purpose of, for example, signage. Each display 1 is provided with a rotation control device 2 that can individually rotate the display 1. 1 are all rotatable displays provided with the rotation control device 2, but the display group may include a fixed display that cannot be rotated (see, for example, FIG. 4).

  As shown in FIG. 1, the S / W of this information display device includes a multi-display control unit 3, a display management unit 4, a multi-display matching unit 5, a rotation correction cooperation control unit 6, and an image output unit 7. .

  The multi-display control unit 3 controls the multi-display matching unit 5 according to display effects desired by the user (linked large screen display, 3D image display, display rotation operation). The multi-display control unit 3 includes a connected large screen display control unit 31, a depth 3D image configuration control unit 32, and a display rotation operation control unit 33.

The connected large screen display control unit 31 controls the multi-display matching unit 5 when the connected large screen display is selected by the user.
The depth 3D image configuration control unit 32 controls the multi-display matching unit 5 when 3D image display is selected by the user.

  The display rotation operation control unit 33 controls the multi-display matching unit 5 when the display rotation operation is selected by the user. The display rotation operation control unit 33 includes an operation selection unit 331 and a display performance selection unit 332.

The operation selection unit 331 receives selection of a display rotation operation type. As the type of the display rotation operation, simultaneous rotation control for simultaneously directing the display surfaces of the respective displays 1 in the same direction, simultaneous rotation control for simultaneously directing to the same point in space, time difference rotation control for performing a wavy movement, or The distance difference rotation control corresponding to the relative distance based on the spatial coordinates of each display 1 can be selected.
The display performance selection unit 332 accepts selection of display performance (resolution emphasis or reproduction chromaticity emphasis) in information display.

  The display management unit 4 manages fixed information regarding each display 1. The fixed information includes, for example, information such as the ID, size, resolution, viewing angle characteristics, reproducible chromaticity range, and external light reflection information of each display 1. The display management unit 4 includes an update information management unit 41 and an imaging data analysis unit 42.

The update information management unit 41 manages variable information regarding each display 1. This variable information includes, for example, information such as the spatial coordinates, orientation, rotation movable range, and the like of each display 1. The update information management unit 41 updates the orientation of the corresponding display 1 based on the detection result by the geomagnetic sensor 8 described later, and updates the spatial coordinates of the display 1 based on the detection result by the GPS information acquisition device 9 described later. To do.
The imaging data analysis unit 42 updates the variable information (spatial coordinates, orientation, rotational movable range) managed by the update information management unit 41 based on the imaging result by the imaging device 10 described later.

  The multi-display matching unit 5 performs synchronization control information for synchronously controlling each display 1 based on information on each display 1 managed by the display management unit 4 and the update information management unit 41 according to control by the multi-display control unit 3. Is set. The multi-display matching unit 5 includes a geometric matching control unit 51 and a color matching control unit 52.

The geometric matching control unit 51 sets information (geometric matching information) for performing geometric matching on each display 1 based on information on each display 1.
Here, geometric matching refers to a virtual display image that is displayed on the virtual display surface by setting a virtual display surface for each display 1 so as to form a unified display screen for the entire display group. This is a function for displaying an image corresponding to. At this time, video data corresponding to the virtual display image displayed on each virtual display surface is cut out and displayed on each display 1. As a method of realizing this geometric matching, a method of rotating the display 1 by H / W (rotation control device 2), or a geometric correction (projective transformation) of a display image by S / W (display image correction unit 62). ) And a method of performing both at the same time.

The color matching control unit 52 sets information (color matching information) for performing color matching on each display 1 based on the viewing angle with respect to an arbitrary viewpoint based on information on each display 1. .
Here, the color matching is a coefficient for each viewing angle with respect to the R, G, and B values of the display image for each display 1 so as to form a display chromaticity that can be unified in the entire display group. This is a function of performing luminance correction to reduce the dynamic range and absorbing a change in display chromaticity caused by a viewing angle with respect to an arbitrary viewpoint. The change in the display chromaticity depending on the viewing angle is, for example, in the 8-bit color data, when the viewing angle is 0 ° with respect to a certain viewpoint, the display chromaticity value is 0 to 255. Is 30 ° and the luminance attenuation is 10% (eigenvalue for each display 1), the value is 0 to 230. As a method for realizing this color matching, a method of rotating the display 1 by H / W (rotation control device 2), a method of correcting the luminance of a display image by S / W (display image correction unit 62), There is a way to do both at the same time.

  The rotation correction cooperation control unit 6 controls each rotation based on the information on each display 1 managed by the display management unit 4 and the update information management unit 41 and the synchronization control information set by the multi-display matching unit 5. The device 2 is controlled and / or the display image of each display 1 is corrected. The rotation correction cooperation control unit 6 includes a rotation control unit 61 and a display image correction unit 62.

The rotation control unit 61 rotates each display 1 via each rotation control device 2 based on information on each display and synchronization control information.
The display image correction unit 62 performs geometric correction and luminance correction of a display image on each display 1 based on information on each display 1 and synchronization control information. The display image corrected by the display image correction unit 62 is output to the image output unit 7.

  The image output unit 7 outputs the display image corrected by the display image correction unit 62 to the corresponding display 1 for display.

Next, the H / W configuration that realizes the S / W configuration of the information display device shown in FIG. 1 will be described. FIG. 2 is a diagram showing an H / W configuration of the information display apparatus according to Embodiment 1 of the present invention.
As shown in FIG. 2, the H / W configuration of the information display device includes a geomagnetic sensor (orientation detection sensor) 8, a GPS information acquisition device (spatial coordinate detection sensor) 9, an imaging device 10, and a control device 11. .

The geomagnetic sensor 8 detects the orientation of the display surface of each display 1. The detection result by the geomagnetic sensor 8 is notified to the update information management unit 41 in the control device 11.
The GPS information acquisition device 9 detects the spatial coordinates of each display 1. The detection result by the GPS information acquisition device 9 is notified to the update information management unit 41 in the control device 11.

The imaging device 10 captures an image showing each display 1 viewed from an arbitrary viewpoint. The imaging result by the imaging device 10 is notified to the imaging data analysis unit 42 in the control device 11.
The control device 11 includes a rotation synchronization control device 111 and a display synchronization control device 112, and executes the functions of the function blocks 4 to 7 of the information display device shown in FIG. Moreover, the control apparatus 11 performs the function of the multi display control part 3 of the information display apparatus shown in FIG.

Next, the operation of the information display device configured as described above will be described with reference to FIG.
Here, the information display device realizes a predetermined display effect such as performing synchronous control of the display group and simultaneously moving in the same direction or performing a wave-like movement with a time difference. At that time, the information display device performs physical rotation of the display 1 by H / W (rotation control device 2) and virtual rotation of the display image of the display 1 by S / W (display image correction unit 62). Perform in cooperation. At the same time, the display chromaticity of the display image is controlled. In the following, it is assumed that color matching is realized by correcting the brightness of the display image by S / W.

  In the operation of the information display device, as shown in FIG. 3, first, the multi-display control unit 3 determines whether or not the connected large screen display is selected by the user (step ST1). In step ST1, when the multi-display control unit 3 determines that the connected large screen display is selected, the multi-display matching unit 5 is controlled by the connected large screen display control unit 31.

  Next, the multi-display matching unit 5 extracts the rotation movable range of each display 1 from the update information management unit 41 according to the control by the connected large screen display control unit 31 (step ST2).

  Next, the geometric matching control unit 51 sets geometric matching information for each display 1 based on the information about each display 1 managed by the display management unit 4 and the update information management unit 41 (step ST3). At this time, the geometric matching control unit 51 sets a virtual display surface for each display 1 so that one large screen is configured when the display group is viewed from an arbitrary viewpoint.

  Further, the color matching control unit 52 sets the color matching information for each display 1 based on the information about each display 1 managed by the display management unit 4 and the update information management unit 41 (step ST4). At this time, the color matching control unit 52 calculates a luminance correction value for each display 1 based on the dynamic range of the display 1 having the worst condition (the narrowest reproducible chromaticity range).

  Next, the rotation control unit 61 uses each rotation control device 2 based on the information regarding each display 1 managed by the display management unit 4 and the update information management unit 41 and the synchronization control information from the multi-display matching unit 5. Each display 1 is rotated via (step ST5). At this time, the rotation control unit 61 rotates each display 1 so that the display surface matches the direction of the corresponding virtual display surface as much as possible within the rotation movable range of each display 1.

  Further, the display image correction unit 62 is based on the information on each display 1 managed by the display management unit 4 and the update information management unit 41 and the synchronization control information from the multi-display matching unit 5. The geometric correction and luminance correction of the display image are performed (step ST6). Here, the display image correction unit 62 rotates when there is a fixed display that cannot be rotated in the display group (FIG. 4), or when there is a display 1 with a narrow rotation movable range due to restrictions on the installation location. When the rotation exceeding the movable range is required, the display image on the display 1 is virtually rotated. The display image corrected by the display image correction unit 62 is displayed on the corresponding display 1 via the image output unit 7. Thereby, even when the display 1 itself cannot be rotated, the display 1 can appear to rotate.

  As described above, by combining display rotation and display image correction, a single large screen without distortion as shown in FIG. An image can be obtained.

  In the multi-display matching unit 5 and the rotation correction cooperation control unit 6, matching can be performed in real time based on the variable information (spatial coordinates and orientation) of each display 1 updated one by one by the update information management unit 41. In such a case, for example, as shown in FIG. 6, it is also possible to perform a linked large screen display using a large display group that is mounted on a plurality of moving bodies (such as buses) and moves.

  On the other hand, when the multi-display control unit 3 determines in step ST1 that the connected large screen display is not selected, the multi-display control unit 3 determines whether the 3D image display is selected by the user (step ST7). In step ST7, when the multi-display control unit 3 determines that 3D image display is selected, the multi-display matching unit 5 is controlled by the depth 3D image configuration control unit 32.

  Next, the multi-display matching unit 5 extracts the rotation movable range of each display 1 from the update information management unit 41 according to the control by the connected large screen display control unit 31 (step ST8).

  Next, the geometric matching control unit 51 sets geometric matching information for each display 1 based on the information about each display 1 managed by the display management unit 4 and the update information management unit 41 (step ST9). At this time, the geometric matching control unit 51 performs virtual processing for each display 1 so that a predetermined 3D shape (for example, a three-dimensional shape as shown in FIG. 7) is formed when the display group is viewed from an arbitrary viewpoint. Set the display surface.

  Further, the color matching control unit 52 calculates a luminance correction value for each display 1 based on the information about each display 1 managed by the display management unit 4 and the update information management unit 41 (step ST10).

  Next, the rotation control unit 61 uses each rotation control device 2 based on the information regarding each display 1 managed by the display management unit 4 and the update information management unit 41 and the synchronization control information from the multi-display matching unit 5. Each display 1 is rotated via (step ST11). At this time, the rotation control unit 61 rotates each display 1 so that the display surface matches the direction of the corresponding virtual display surface as much as possible within the rotation movable range of each display 1.

  Further, the display image correction unit 62 is based on the information on each display 1 managed by the display management unit 4 and the update information management unit 41 and the synchronization control information from the multi-display matching unit 5. The display image is subjected to geometric correction and luminance correction (step ST12). Here, the display image correction | amendment part 62 rotates the display image of the said display 1 virtually, when the rotation beyond a rotation movable range is required. The display image corrected by the display image correction unit 62 is displayed on the corresponding display 1 via the image output unit 7. Thereby, even when the display 1 itself cannot be rotated, the display 1 can appear to rotate.

  As described above, by combining display rotation and display image correction, as shown in FIG. 7, a 3D image image in consideration of depth can be obtained regardless of the positional relationship and performance of the individual displays 1. Can do.

On the other hand, in step ST7, when the multi-display control unit 3 determines that the 3D image display is not selected, the multi-display matching unit 5 determines that the display rotation operation has been selected by the user. To control.
Next, the operation selection unit 331 receives selection of the type of display rotation operation (step ST13). As the type of the display rotation operation, simultaneous rotation control for simultaneously directing the display surfaces of the respective displays 1 in the same direction, simultaneous rotation control for simultaneously directing to the same point in space, time difference rotation control for performing a wavy movement, or The distance difference rotation control corresponding to the relative distance based on the spatial coordinates of each display 1 can be selected.

Next, the display performance selection unit 332 determines whether or not priority is given to resolution (step ST14).
In this step ST14, when the display performance selection unit 332 determines that the emphasis on resolution is selected, the multi-display matching unit 5 rotates each display 1 from the update information management unit 41 according to the control by the display rotation operation control unit 33. A movable range is extracted (step ST15).
Next, based on information about each display 1 managed by the display management unit 4 and the update information management unit 41, the geometric matching control unit 51 sets geometric matching information for each display 1 (step ST16). The color matching control unit 52 calculates a luminance correction value for each display 1 (step ST17).

  Next, based on the information regarding each display 1 managed by the display management unit 4 and the update information management unit 41 and the synchronization control information from the multi-display matching unit 5, the rotation control unit 61 performs the rotation control device 2. Each display 1 is rotated via (Step ST18), and the display image correction unit 62 performs geometric correction and luminance correction of the display image on each display 1 (Step ST19). At this time, as shown in FIG. 8, by rotating the display 1 itself as continuously as possible, the reproduction chromaticity range is narrowed, but the resolution can be increased.

On the other hand, when the display performance selection unit 332 determines that the reproduction chromaticity emphasis is selected in step ST14, the multi-display matching unit 5 performs the display from the update information management unit 41 to each display according to the control by the display rotation operation control unit 33. One rotation movable range is extracted (step ST20).
Next, based on the information about each display 1 managed by the display management unit 4 and the update information management unit 41, the geometric matching control unit 51 sets geometric matching information for each display 1 (step ST21). The color matching control unit 52 calculates a luminance correction value for each display 1 (step ST22).

  Next, based on the information regarding each display 1 managed by the display management unit 4 and the update information management unit 41 and the synchronization control information from the multi-display matching unit 5, the rotation control unit 61 performs the rotation control device 2. Each display 1 is rotated through (step ST23), and the display image correction unit 62 performs geometric correction and luminance correction of the display image on each display 1 (step ST24). At this time, as shown in FIG. 9, the display 1 itself is directed toward the front as much as possible, and the display image 1b is virtually continuously rotated to reduce the reproduction chromaticity range while reducing the resolution. it can.

  In the above, only one of the emphasis on resolution and the emphasis on reproduction chromaticity is considered, but both may be considered. In an operation in which the emphasis on resolution and emphasis on reproduction chromaticity is linked, for example, as shown in FIG. 10, first, the display 1 is continuously rotated by H / W (rotation control device 2) with emphasis on resolution, and beyond the rotation limit. The S / W (display image correction unit 62) corrects the display image 1b of the display 1 and makes it appear to rotate continuously. In FIG. 10, when rotating 360 degrees, it is necessary to return the display 1 to the opposite side of the left-right rotation angle while displaying the display image 1b near 180 degrees.

  As described above, according to the first embodiment, synchronization control information is set for a plurality of individual displays 1 arranged at arbitrary positions and orientations, and display rotation and / or display is performed based on the synchronization control information. Since the image is corrected, even if a plurality of individual displays 1 are used, a desired display effect can be provided regardless of the positional relationship and performance. Therefore, even when the display 1 is placed in a limited installation space (store space or the like), such as when the large display 1 is placed indoors, each display 1 is not flat but in an arbitrary position and orientation. Therefore, the installation space for the large display can be made more efficient.

  In the first embodiment, the rotational movable range of each display 1 is updated by analyzing the image captured by the imaging device 10, but is not limited to this. For example, the geomagnetic sensor 8 or the like is used. The rotationally movable range may be obtained based on the detection result by the azimuth detection sensor. In addition, a proximity space sensor (obstacle detection device) that detects an obstacle around each display 1 using infrared rays, ultrasonic waves, a capacitive touch panel, or the like is used, and a rotation movable range is obtained based on a detection result by the sensor. May be.

In the coupled large screen display and 3D image display of the first embodiment, the rotation control unit 61 rotates the display 1 within the rotation movable range, and the display image correction unit 62 requires rotation exceeding the range. In addition, the display image of the corresponding display 1 is corrected, but more flexible control may be performed using other information managed by the display management unit 4 and the update information management unit 41. .
For example, the rotation control unit 61 reflects the illumination light with respect to an arbitrary viewpoint based on the external light reflection information (information indicating the illumination environment around each display 1) managed by the display management unit 4. You may make it rotate the display 1 so that direction may be avoided. The display image correction unit 62 virtually rotates the display image when the display 1 needs to be rotated in a direction in which the illumination light is reflected.

Further, the rotation control unit 61 may rotate the display 1 within a good viewing angle range based on the viewing angle characteristics managed by the display management unit 4. The display image correction unit 62 virtually rotates the display image when rotation exceeding the range is required.
Further, although not shown, the display management unit 4 may manage the rotational movable speed of each display 1, and the rotation control unit 61 may rotate the display 1 within this rotational movable speed range. The display image correction unit 62 virtually rotates the display image when a rotation speed exceeding the range is required.

  The display group may include the display 1 integrally provided with a speaker having a predetermined directivity, and information display may be performed in consideration of the directivity of the speaker. In this case, for example, the rotation control unit 61 gives priority to the directionality of the speaker and rotates the corresponding display 1 so that the directionality direction matches the direction of an arbitrary viewpoint. The display image correction unit 62 virtually rotates the display image of the display 1 when the display 1 having the speaker needs to be rotated in a direction shifted from the direction of the viewpoint.

  In the present invention, any constituent element of the embodiment can be modified or any constituent element of the embodiment can be omitted within the scope of the invention.

  DESCRIPTION OF SYMBOLS 1 Display, 1b Display image, 2 Rotation control apparatus, 3 Multi display control part, 4 Display management part, 5 Multi display matching part, 6 Rotation correction cooperation control part, 7 Image output part, 8 Geomagnetic sensor, 9 GPS information acquisition apparatus DESCRIPTION OF SYMBOLS 10 Imaging device, 11 Control apparatus, 31 Connection large screen display control part, 32 Depth 3D image structure control part, 33 Display rotation operation control part, 41 Update information management part, 42 Imaging data analysis part, 51 Geometric matching control part 52 color matching control unit, 61 rotation control unit, 62 display image correction unit, 111 rotation synchronization control device, 112 display synchronization control device, 331 operation selection unit, 332 display performance selection unit.

Claims (13)

An information display device that displays information using a display group including a display provided with a rotation control device that is arranged at an arbitrary position / orientation and is individually rotatable,
In accordance with a predetermined display effect, a geometric matching control unit that sets a virtual display surface for each display so as to configure a uniform display screen for the entire display group,
An information display device comprising: a rotation correction cooperative control unit that controls the rotation control device and / or corrects a display image on the display based on a virtual display surface set by the geometric matching control unit. The rotation correction cooperation control unit
Based on the virtual display surface, a rotation control unit that rotates each display via the rotation control device within a rotation movable range of each display;
The information according to claim 1, further comprising: a display image correction unit that virtually rotates the display image of the display when rotation exceeding the rotation movable range is required based on the virtual display surface. Display device. An orientation detection sensor for detecting the orientation of the display surface of each display;
The information display device according to claim 2, wherein the rotation correction cooperation control unit uses the rotation movable range based on a detection result by the direction detection sensor. An imaging device for imaging each display viewed from an arbitrary viewpoint;
The information display device according to claim 2, wherein the rotation correction cooperation control unit uses the rotation movable range based on an imaging result of the imaging device. An obstacle detection sensor for detecting an obstacle in the vicinity of each display;
The information display device according to claim 2, wherein the rotation correction cooperation control unit uses the rotation movable range based on a detection result by the obstacle detection sensor. The rotation control unit rotates the display based on an illumination environment around the display so as to avoid a direction of reflecting illumination light with respect to an arbitrary viewpoint,
The information display device according to claim 2, wherein the display image correction unit virtually rotates the display image of the display when rotation in a direction in which the illumination light is reflected is required. The rotation control unit rotates the display within a predetermined viewing angle range based on the viewing angle specification of each display,
The information display device according to claim 2, wherein the display image correction unit virtually rotates the display image of the corresponding display when rotation exceeding the viewing angle range is required. The rotation control unit rotates each display within a rotatable speed range of each display,
The information display device according to claim 2, wherein the display image correction unit virtually rotates the display image of the display when a rotation speed exceeding the rotation speed range is required. The display group includes a display integrally provided with a speaker having a predetermined directivity,
The rotation control unit rotates the corresponding display so that the directivity direction of the speaker matches the direction of an arbitrary viewpoint,
The display image correction unit virtually rotates a display image of a corresponding display when the display including the speaker needs to rotate in a direction deviated from the direction of the viewpoint. The information display device described. Color matching that calculates a luminance correction value for the display image of each display so as to form a display chromaticity that is uniform for the entire display group based on a viewing angle with respect to an arbitrary viewpoint on the display surface of each display With a control unit,
The rotation correction cooperation unit performs control of the rotation control device and / or correction of a display image on the display based on a luminance correction value calculated by the color matching control unit. Information display device. The information display device according to claim 10, wherein the color matching control unit calculates a luminance correction value of each display based on a predetermined reproducible chromaticity range of the display. A spatial coordinate detection sensor for detecting a spatial coordinate of each display;
An orientation detection sensor for detecting the orientation of the display surface of each display,
Each display is mounted on a moving body,
The rotation correction cooperation control unit is configured to control the rotation control device for each display that moves based on the spatial coordinates detected by the spatial coordinate detection sensor and the orientation of the display surface detected by the orientation detection sensor. The information display device according to claim 1, wherein control and / or correction of a display image on the display is performed. A display performance selection unit that accepts selection of resolution-oriented or reproduction-chromaticity-oriented in the information display;
The rotation correction cooperation control unit gives priority to control of the rotation control device when the display performance selection unit accepts emphasis on resolution, and when the display performance selection unit accepts reproduction chromaticity emphasis, The information display apparatus according to claim 1, wherein priority is given to correction of a display image on the display.

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