WO2018163348A1 - Video display apparatus and control method for video display apparatus - Google Patents

Video display apparatus and control method for video display apparatus Download PDF

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Publication number
WO2018163348A1
WO2018163348A1 PCT/JP2017/009441 JP2017009441W WO2018163348A1 WO 2018163348 A1 WO2018163348 A1 WO 2018163348A1 JP 2017009441 W JP2017009441 W JP 2017009441W WO 2018163348 A1 WO2018163348 A1 WO 2018163348A1
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Prior art keywords
display
video
correction
image
viewer
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PCT/JP2017/009441
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French (fr)
Japanese (ja)
Inventor
高橋　淳
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Ｎｅｃディスプレイソリューションズ株式会社
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Priority to JP2019504219A priority Critical patent/JP6786703B2/en
Priority to PCT/JP2017/009441 priority patent/WO2018163348A1/en
Publication of WO2018163348A1 publication Critical patent/WO2018163348A1/en

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/66—Transforming electric information into light information

Definitions

  • the present invention relates to a video display device and a control method for the video display device.
  • FIG. 11 is a diagram for explaining the optimum visual recognition position Pir of the curve monitor.
  • FIG. 11A shows an optimal viewing position Pir of the curve monitor 20
  • FIG. 11B shows an image (image) when viewed from the viewing position Pir.
  • the curve monitor 20 having a curved display screen has an optimum visual position Pir (a position indicating the center of the radius of curvature in the curve monitor) according to the curvature.
  • the image when the curve monitor 20 is viewed from the center of the radius of curvature (viewing position Pir in the figure) is not distorted.
  • FIG. 12 is a diagram for explaining the positions Pfr of the viewers of the plurality of curve monitors.
  • FIG. 12A shows the optimal viewing position Pir of each of a plurality (three) of the curve monitors 20, and FIG. 12B shows an image on the curve monitor 20 when the viewer visually recognizes from a distance. Is shown.
  • FIG. 12B a plurality of curve monitors 20 are installed to form a large screen, and the image is visually distorted when viewed from a distance. That is, when a plurality of curve monitors 20 are installed to form a large screen, as shown in FIG. 12 (a), the viewer's position Pfr is farther from the monitor's individual optimum position Pir. As shown in (), the viewer recognizes the distortion of the display image.
  • a curve monitor (a monitor with a curved display screen) has an optimal viewing position according to its ratio. In this case, the viewer's position is far from the optimum position for each monitor, and the distortion of the display image is recognized.
  • an object of the present invention is to provide a video display device and a video display device control method in which a viewer does not recognize distortion of a display image even when a plurality of curve monitors are provided.
  • an image display device provides a display unit having a shape including a curved display surface for displaying an image, and a display image to be displayed on the display unit.
  • a scaler that performs video correction, which is correction based on the shape of the display surface, and a controller that causes the scaler to perform video correction when a viewer of the display unit is far from the optimal viewing position of the display unit. It is characterized by that.
  • a video display device control method is a video display device control method including a display unit having a display surface on which a video display surface includes a curved surface, the display video displayed on the display unit
  • a video correction step for performing video correction which is correction based on the shape of the display surface, and a video for performing the video correction when the viewer of the display unit is far from the optimal viewing position of the display unit
  • a correction instruction step is a video display device control method including a display unit having a display surface on which a video display surface includes a curved surface, the display video displayed on the display unit
  • a video correction step for performing video correction which is correction based on the shape of the display surface, and a video for performing the video correction when the viewer of the display unit is far from the optimal viewing position of the display unit
  • FIG. 20 It is a block diagram which shows the structure of the video display apparatus which concerns on embodiment of this invention. It is a figure for demonstrating the image displayed on the curve monitor 20 when a scaler does not perform image correction. It is a figure for demonstrating correction
  • FIG. 1 is a block diagram showing a configuration of a video display apparatus according to an embodiment of the present invention.
  • the video display device 1 includes a signal processing control unit 10 and a curve monitor 20 (display unit).
  • the signal processing control unit 10 includes a controller 11, a scaler 13, and a memory 14.
  • the controller 11 includes firmware 12.
  • the video display device 1 includes a plurality of curve monitors 20 and the human sensor 30.
  • the curve monitor 20 (display unit) may be configured as a single unit instead of a plurality of units, but in the present embodiment, description will be made on the assumption that the unit is configured with a plurality of units.
  • the human sensor 30 includes an optical sensor, an ultrasonic sensor, and the like, and detects the distance from the individual curve monitor 20 (monitor) to the viewer.
  • the controller 11 reads out information on the optimum visual recognition position of the individual curve monitor 20 from the memory 14, and determines whether or not there is a viewer farther than the optimum visual recognition position of the individual curve monitor 20 by the firmware 12. That is, the memory 14 stores the optimum visual recognition position of the individual curve monitor 20 in advance.
  • the firmware 12 is far away. It is determined that there is a viewer. In addition, it is good also as a structure which transmits the signal which shows that an operator is far from the optimal visual recognition position of the separate curve monitor 20 to the controller 11 from the exterior forcibly.
  • the controller 11 reads out from the memory 14 storing the information (shape information) of the curved surface or plane of the individual curve monitor 20 and sends it to the scaler 13. That is, when the controller 11 determines that there is a viewer in the distance, the controller 11 sends the shape information of the individual curve monitor 20 to the scaler 13.
  • the scaler 13 performs image processing (correction processing) on an input video signal (display video) by a method shown in the following solution (shown in image correction) according to the shape information of the individual curve monitor 20. I do.
  • the scaler 13 outputs an image-processed video signal (corrected display video) to the curve monitor 20 as an output video signal.
  • the curve monitor 20 displays a display video (corrected image) by an output video signal output from the scaler.
  • the display video displayed on the curve monitor 20 is not limited to an input video signal input from the outside, and an image (video) stored in the video display device 1 (display device). Or the like.
  • the controller 11 detects that the viewer is far from the optimal viewing position when one of the plurality of curve monitors 20 is located.
  • the other curve monitor 20 may be notified to perform video correction. That is, the video display device 1 further includes a human sensor 30 that detects the distances from the plurality of curve monitors 20 to the viewer, and a memory 14 that stores the optimal viewing position.
  • the controller 11 not only notifies the other curve monitor 20 to perform image correction, but also compares the distance detected by the human sensor 30 with the optimal visual recognition position read from the memory 14 so that the viewer is optimal. You may notify the judgment result judged that it is far from a visual recognition position.
  • FIG. 2 is a diagram for explaining an image displayed on the curve monitor 20 when the scaler does not perform image correction.
  • 2A shows the optimal viewing position Pir and viewer position Pfr of the curve monitor 20
  • FIG. 2B shows an image (image) when viewed from the viewer position Pfr. ing.
  • the curve monitor 20 is high in a direction perpendicular to the drawing (Y axis direction) as shown in FIG. It has a curved surface in the XZ plane perpendicular to the Y axis.
  • the curve monitor 20 having a curved display screen has an optimum visual position Pir (a position indicating the center of the radius of curvature in the curve monitor) according to the curvature.
  • the image when the curve monitor 20 is viewed from a position farther away from the center of curvature radius (viewing position Pir in the figure) (viewer position Pfr in the figure) is distorted.
  • the general curve monitor 20 has a display surface of a combination of an arc portion and a straight portion (first straight portion and second straight portion). The image correction is executed using the methods shown in FIGS.
  • FIG. 3 is a diagram for explaining correction of the first straight line portion of the curve monitor in FIG.
  • a first straight line portion and a circular arc portion are the first straight line portion and the circular arc portion shown in FIG. 2, respectively.
  • the first straight line portion having the length (a) shown in FIG. 3 is an end portion of the first straight line portion of the curve monitor in a straight line (XY plane) connecting the front end portions of the curve monitor 20. It is visually compressed after being compressed to a length (b) from the intersection D with a straight line drawn vertically from B to the end A of the curve monitor.
  • the straight line (XY plane) connecting the front end portions of the curve monitor 20 is a plane parallel to the XY plane of the image displayed by the curve monitor 20.
  • the straight line connecting the front end portions of the curve monitor 20 is a straight line parallel to the X axis on the XY plane. Since the scaler 13 is visually recognized by compressing the first straight line portion of the length (a) to the length (b) up to the curve monitor end A, the straight line (XY) connecting the front end of the curve monitor 20
  • the video signal is expanded and corrected so as to have a length (a) on the plane.
  • the scaler 13 considers, for example, linear interpolation when the video signal width of the straight line portion before correction is (W1) and the video signal width applied to the curve monitor 20 after correction is (W2).
  • the video signal width is the width in the X direction on the XY plane.
  • FIG. 4 is a diagram for explaining correction of the second straight line portion of the curve monitor in FIG.
  • the second straight line portion and the circular arc portion are the second straight line portion and the circular arc portion shown in FIG. 2, respectively.
  • the second straight line portion having the length (c) shown in FIG. 4 is from the end B of the straight line portion of the curve monitor 20 on the straight line (XY plane) connecting the front end portions of the curve monitor 20. It is visually compressed after being compressed to a length (d) from the intersection D with the straight line drawn vertically to the end A of the curve monitor.
  • the scaler 13 Since the scaler 13 is visually recognized by compressing the second straight line portion having the length (c) to the length (d) up to the curve monitor end A, the straight line (XY) connecting the front end portions of the curve monitor 20
  • the video signal is expanded and corrected so as to have a length (c) on the plane.
  • FIG. 5 is a diagram for explaining correction of the arc portion of the curve monitor in FIG.
  • the first straight line portion, the second straight line portion, and the arc portion are the first straight line portion, the second straight line portion, and the arc portion shown in FIG. 2, respectively.
  • the line (XY plane) connecting the arc portions of the curve monitor 20 is a plane parallel to the XY plane with the image displayed by the curve monitor 20.
  • the signal display area before correction is indicated by W5
  • W6 broken line portion
  • the length (e) of the arc portion of the curve monitor 20 is set to a straight line (XY) connecting the end portions of the arc portion of the curve monitor.
  • the video signal is compressed and corrected so as to have the length (f) of the plane.
  • the signal correction is performed by calculating x (f / e).
  • FIG. 6 is a diagram for describing signal correction performed by the scaler 13.
  • FIG. 6A shows the curve monitor 20 before the image correction, the curve monitor 20 after the image correction, and the viewer position Pfr.
  • FIG. 6B shows the case where the viewer is viewing from the viewer position Pfr.
  • An image is shown.
  • the curve monitor 20 before image correction has a display surface of a combination of an arc portion and a straight line portion (first straight line portion and second straight line portion).
  • the later curve monitor 20 uses the method shown in FIGS. 3, 4, and 5 to compress the display image of the arc portion to the width of the broken line and perform image correction so that the linear portion is expanded. To do.
  • the display is as shown in FIG. 6B. The image is visible without distortion.
  • FIG. 7 is a diagram for explaining signal correction of a plurality of curve monitors executed by the scaler 13.
  • FIG. 7A shows the optimum visual recognition position Pir of each of a plurality (three) of curve monitors 20, and
  • FIG. 7B shows an image on the curve monitor 20 when the viewer visually recognizes from a distance. Is shown.
  • the scaler 13 corrects the image of the individual curve monitor 20, even when viewed from a distance (viewer's position Pfr), the scaler 13 is visually recognized as shown in FIG. 7B.
  • a plurality of curve monitors 20 are installed to form a large screen, and the position of the viewer is far from the optimum position Pir for each monitor (the position Pfr of the viewer). ), A display image without distortion is visually recognized.
  • the sensing sensor 40 is configured by a sensor that electrically or optically detects the contact of the end portion of the individual curve monitor 20. Therefore, a plurality of detection sensors 40 are installed, and the curve monitor 20 detects that a plurality of detection sensors 40 are installed as shown in FIG.
  • FIG. 8 is a diagram for explaining an example in which a plurality of curve monitors 20 are installed.
  • FIG. 8A shows a case where a plurality of (three) curve monitors 20 are installed in the horizontal direction (X direction) and a plurality (three) are installed in the vertical direction (Z direction) to form a large screen.
  • the controller 11 and the firmware 12 detect the installation of a plurality of curve monitors 20, it is determined whether or not the viewer is far away from the optimum viewing position Pir of the individual curve monitor 20 because of the large screen configuration. to decide.
  • the controller 11 reads the curved surface and plane information (shape information) of the individual curve monitor 20 from the stored memory 14 and sends the information to the scaler 13.
  • the controller 11 determines that there is a viewer in the distance, the controller 11 sends the shape information of the individual curve monitor 20 to the scaler 13.
  • the scaler 13 performs image processing on the input video signal (display video) by the method shown in the previous solution according to the shape information of the individual curve monitor 20.
  • the scaler 13 outputs an output video signal (corrected display video) subjected to image processing to the curve monitor 20.
  • the individual curve monitor 20 displays a display video (corrected image) by the output video signal subjected to the image processing.
  • the display video displayed on the curve monitor 20 (display unit) is not limited to an input video signal input from the outside, and an image (video) stored in the video display device 1 (display device). Or the like.
  • the controller 11 detects that the viewer is far from the optimal viewing position when one of the plurality of curve monitors 20 is located.
  • the other curve monitor 20 may be notified to perform video correction. That is, the video display device 1 includes a detection sensor 40 that detects that a plurality of curve monitors 20 (display units) are installed. For this reason, the controller 11 not only notifies other curve monitors 20 to perform image correction, but also when the sensing sensor 40 senses that a plurality of curve monitors 20 are installed, the viewer can recognize the optimal viewing position. The determination result determined to be farther away may be notified.
  • the curve monitor 20 having a configuration in which a straight line is combined with a part of a circle is shown as an example.
  • the configuration of the shape of the curve monitor may be any configuration as long as the display screen has a shape including a curved surface, as will be described below.
  • FIG. 9 is a diagram for explaining the configuration of the shape of the curve monitor.
  • the curve monitor 20 shown in FIG. 9A is a curved surface configuration of a general curve monitor as described above in the description of the embodiment, and a straight line (first straight line portion) is formed on a part of the circle C (arc portion). And the second linear portion).
  • the scaler 13 compresses the display image in the horizontal direction (X direction shown in FIGS.
  • the curve monitor 20a shown in FIG. 9B has a shape constituted by a circle C or an arc of only a part of an ellipse.
  • the scaler 13 performs correction such as compressing the display image in the horizontal direction (X direction shown in FIGS. 3 to 6) at the center of the arc, and compressing the display image in the horizontal direction also at the end of the arc.
  • the image displayed on the curve monitor is adjusted so that no uncomfortable feeling is produced when all the monitors are viewed from the horizontal viewing position.
  • the curve monitor 20b shown in FIG. 9C has a shape constituted by a combination of a plurality of circles or ellipses (arbitrary curves) and straight lines.
  • the scaler 13 performs corrections such as enlargement / reduction of the display image according to each curve and straight line portion, and the curve monitor displays the final display so that no uncomfortable feeling is generated when all the monitors are viewed from the horizontal position.
  • the image to be adjusted is adjusted.
  • FIG. 10 is a schematic block diagram showing the basic configuration of the video display apparatus according to the present invention.
  • the basic configuration of the video display device 1 according to the present invention is as shown in FIG. That is, the video display device 1 according to the present invention includes a curve monitor 20 (display unit), a scaler 13, and a controller 11.
  • the curve monitor 20 has a shape in which a display surface for displaying an image includes a curved surface.
  • the scaler 13 performs video correction, which is correction based on the shape of the display surface, on the display video displayed on the curve monitor 20.
  • the controller 11 causes the scaler 13 to perform video correction.
  • the scaler 13 corrects, based on the shape of the display surface, distortion of the display image that occurs when the viewer of the curve monitor 20 visually recognizes the curve monitor 20 from a distance from the optimal viewing position. That is, the scaler 13 expands the width of the display image for the straight line portion of the shape, compresses the width of the display image for the arc portion, and generates a corrected display image.
  • the video display device 1 may have the following configuration (configuration shown in FIG. 1).
  • the controller 11 detects that the viewer is far from the optimum viewing position when one of the plurality of curve monitors 20 detects that the viewer is far from the optimum viewing position. 20 may be configured to notify the image correction to be performed.
  • the video display device 1 further includes a human sensor 30 that detects the distances from the plurality of curve monitors 20 to the viewer, and a memory 14 that stores the optimal viewing position Pir. The controller 11 compares the distance detected by the human sensor 30 with the optimum visual recognition position Pir read from the memory 14, and determines that the viewer is far from the optimum visual recognition position Pir (the viewer's position Pfr).
  • the video display device 1 includes a detection sensor 40 that detects that a plurality of curve monitors 20 are installed.
  • the controller 11 determines that the viewer is far from the optimal viewing position Pir (viewer position Pfr).
  • the scaler 13 corrects the input video signal (display video) according to the shape information of the curve monitor, and the corrected video output signal (corrected display video).
  • the corrected video output signal corrected display video.

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  • Computer Hardware Design (AREA)
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  • Theoretical Computer Science (AREA)
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Abstract

A video display apparatus comprises: a display unit of which a display surface for displaying a video has a shape including a curved surface; a scaler for implementing a video correction, which is a correction based on the shape of the display surface, with respect to a display video to be displayed on the display unit; and a controller for causing the scaler to implement the video correction when a viewer of the display unit is at a position farther than an optimum viewing position of the display unit.

Description

映像表示装置、映像表示装置の制御方法Video display device and video display device control method
　本発明は、映像表示装置、映像表示装置の制御方法に関する。 The present invention relates to a video display device and a control method for the video display device.
　映像表示装置では、主にデザイン的な要請により、表示画面が曲面となっているモニタ（カーブモニタ）の需要が高まっている（例えば、特許文献１参照）。
　映像表示装置では、カーブモニタを複数台設置して大画面を構成した場合、視認者の位置がモニタ個別の最適位置より遠方となって、表示画面の歪みなどを認識してしまうという技術的課題がある。この技術的課題について、図１１、図１２を参照して説明する。 In video display devices, demand for monitors (curve monitors) whose display screens are curved is increasing mainly due to design requirements (see, for example, Patent Document 1).
In video display devices, when a large screen is configured by installing multiple curve monitors, the viewer's position is far from the optimal position for each monitor, and the display screen distortion is recognized. There is. This technical problem will be described with reference to FIGS.
　図１１は、カーブモニタの最適な視認位置Ｐｉｒを説明するための図である。
図１１（ａ）は、カーブモニタ２０の最適な視認位置Ｐｉｒを示しており、図１１（ｂ）は、視認位置Ｐｉｒから視認した場合の画像（イメージ）を示している。図１１（ａ）に示すように、表示画面が曲面となっているカーブモニタ２０はその曲率に応じた最適な視認位置Ｐｉｒ（カーブモニタにおける曲率半径の中心を示す位置）が存在する。図１１（ｂ）に示すように、カーブモニタ２０を曲率半径の中心（図の視認位置Ｐｉｒ）から視認した場合の画像は歪まない。 FIG. 11 is a diagram for explaining the optimum visual recognition position Pir of the curve monitor.
FIG. 11A shows an optimal viewing position Pir of the curve monitor 20, and FIG. 11B shows an image (image) when viewed from the viewing position Pir. As shown in FIG. 11A, the curve monitor 20 having a curved display screen has an optimum visual position Pir (a position indicating the center of the radius of curvature in the curve monitor) according to the curvature. As shown in FIG. 11B, the image when the curve monitor 20 is viewed from the center of the radius of curvature (viewing position Pir in the figure) is not distorted.
　図１２は、複数台のカーブモニタの視認者の位置Ｐｆｒを説明するための図である。図１２（ａ）は、複数台（３台）のカーブモニタ２０各々の最適な視認位置Ｐｉｒを示しており、図１２（ｂ）は、視認者が遠方より視認した際のカーブモニタ２０における画像を示している。図１２（ｂ）に示すように、カーブモニタ２０を複数台設置して大画面を構成し、遠方から見ると画像が歪んで視認される。
　すなわち、カーブモニタ２０を複数台設置して大画面を構成した場合、図１２（ａ）に示すように、視認者の位置Ｐｆｒはモニタ個別の最適位置Ｐｉｒより遠方となって、図１２（ｂ）に示すように、視認者は表示画像の歪みなどを認識してしまう。 FIG. 12 is a diagram for explaining the positions Pfr of the viewers of the plurality of curve monitors. FIG. 12A shows the optimal viewing position Pir of each of a plurality (three) of the curve monitors 20, and FIG. 12B shows an image on the curve monitor 20 when the viewer visually recognizes from a distance. Is shown. As shown in FIG. 12B, a plurality of curve monitors 20 are installed to form a large screen, and the image is visually distorted when viewed from a distance.
That is, when a plurality of curve monitors 20 are installed to form a large screen, as shown in FIG. 12 (a), the viewer's position Pfr is farther from the monitor's individual optimum position Pir. As shown in (), the viewer recognizes the distortion of the display image.
特開２００８－２６４１７号公報JP 2008-26417 A
　上述のように、映像表示装置では、カーブモニタ（表示画面が曲面となっているモニタ）はその局率に応じた最適な視認位置が存在するが、これを複数台設置して大画面を構成した場合、視認者の位置はモニタ個別の最適位置より遠方となって、表示画像の歪みなどを認識してしまう。 As described above, in a video display device, a curve monitor (a monitor with a curved display screen) has an optimal viewing position according to its ratio. In this case, the viewer's position is far from the optimum position for each monitor, and the distortion of the display image is recognized.
　上述の課題を鑑み、本発明は、カーブモニタが複数台となっても、視認者が表示画像の歪みを認識しない映像表示装置、映像表示装置の制御方法を提供することを目的とする。 In view of the above-described problems, an object of the present invention is to provide a video display device and a video display device control method in which a viewer does not recognize distortion of a display image even when a plurality of curve monitors are provided.
　上述の課題を解決するために、本発明の一態様に係る映像表示装置は、映像を表示する表示面が曲面を含む形状を有する表示部と、前記表示部に表示させる表示映像に対して、前記表示面の形状に基づく補正である映像補正を行うスケーラと、前記表示部の視認者が前記表示部の最適視認位置より遠方にいると、前記スケーラに映像補正を行わせるコントローラと、を備えることを特徴とする。 In order to solve the above-described problem, an image display device according to an aspect of the present invention provides a display unit having a shape including a curved display surface for displaying an image, and a display image to be displayed on the display unit. A scaler that performs video correction, which is correction based on the shape of the display surface, and a controller that causes the scaler to perform video correction when a viewer of the display unit is far from the optimal viewing position of the display unit. It is characterized by that.
　本発明の一態様に係る映像表示装置の制御方法は、映像を表示する表示面が曲面を含む形状を有する表示部を備える映像表示装置の制御方法であって、前記表示部に表示させる表示映像に対して、前記表示面の形状に基づく補正である映像補正を行う映像補正工程と、前記表示部の視認者が前記表示部の最適視認位置より遠方にいると、前記映像補正を行わせる映像補正指示工程と、を備えることを特徴とする。 A video display device control method according to an aspect of the present invention is a video display device control method including a display unit having a display surface on which a video display surface includes a curved surface, the display video displayed on the display unit On the other hand, a video correction step for performing video correction, which is correction based on the shape of the display surface, and a video for performing the video correction when the viewer of the display unit is far from the optimal viewing position of the display unit A correction instruction step.
　本発明によれば、曲面を含む形状のモニタ（表示部）が複数台となっても、視認者が表示画像の歪みを認識しない映像表示装置、映像表示装置の制御方法を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, even if the monitor (display part) of the shape containing a curved surface becomes multiple units | sets, the control method of the video display apparatus which a viewer does not recognize the distortion of a display image, and a video display apparatus can be provided. .
本発明の実施形態に係る映像表示装置の構成を示すブロック図である。It is a block diagram which shows the structure of the video display apparatus which concerns on embodiment of this invention. スケーラが画像補正を実行しない場合のカーブモニタ２０に表示される画像を説明するための図である。It is a figure for demonstrating the image displayed on the curve monitor 20 when a scaler does not perform image correction. 図２におけるカーブモニタの第１の直線部分の補正を説明するための図である。It is a figure for demonstrating correction | amendment of the 1st linear part of the curve monitor in FIG. 図２におけるカーブモニタの第２の直線部分の補正を説明するための図である。It is a figure for demonstrating correction | amendment of the 2nd linear part of the curve monitor in FIG. 図２におけるカーブモニタの円弧部分の補正を説明するための図である。It is a figure for demonstrating correction | amendment of the circular arc part of the curve monitor in FIG. スケーラ１３が実行する信号補正について説明するための図である。It is a figure for demonstrating the signal correction | amendment which the scaler 13 performs. スケーラ１３が実行する複数台のカーブモニタの信号補正について説明するための図である。It is a figure for demonstrating the signal correction of the several curve monitor which the scaler 13 performs. カーブモニタ２０を複数台設置する例について説明するための図である。It is a figure for demonstrating the example which installs two or more curve monitors. カーブモニタが有する形状の構成を説明するための図である。It is a figure for demonstrating the structure of the shape which a curve monitor has. 本発明による映像表示装置の基本構成を示す概略ブロック図である。It is a schematic block diagram which shows the basic composition of the video display apparatus by this invention. カーブモニタの最適な視認位置Ｐｉｒを説明するための図である。It is a figure for demonstrating the optimal visual recognition position Pir of a curve monitor. 複数台のカーブモニタの視認者の位置Ｐｆｒを説明するための図である。It is a figure for demonstrating position Pfr of the viewer of a plurality of curve monitors.
　以下、本発明の実施の形態について図面を参照しながら説明する。図１は、本発明の実施形態に係る映像表示装置の構成を示すブロック図である。図１に示すように、本実施形態に係る映像表示装置１は、信号処理制御部１０と、カーブモニタ２０（表示部）と、を含んで構成される。
　信号処理制御部１０は、コントローラ１１と、スケーラ１３と、メモリ１４と、を含んで構成される。コントローラ１１は、ファームウエア１２を含んでいる。
　以下本実施形態の一例では、映像表示装置１において、カーブモニタ２０は複数台あり、人感センサー３０を備えているものとする。ただし、カーブモニタ２０（表示部）は、複数台でなく１台で構成されていてもよいが、本実施形態では複数台により構成されているものとして説明を行う。
　人感センサー３０は、光学センサーや超音波センサーなどで構成され、個別のカーブモニタ２０（モニタ）から視認者までの距離を検出する。
　コントローラ１１は、個別のカーブモニタ２０の最適視認位置の情報をメモリ１４より読み出し、ファームウエア１２によって、個別のカーブモニタ２０の最適視認位置よりも遠方に視認者がいるか否かを判断する。すなわち、メモリ１４は、予め個別のカーブモニタ２０の最適視認位置を記憶している。また、ファームウエア１２は、人感センサー３０が検出した個別のカーブモニタ２０（モニタ）から視認者までの距離が、メモリ１４が記憶する個別のカーブモニタ２０の最適視認位置よりも大きい場合、遠方に視認者がいると判断する。なお、操作者が外部より強制的に個別のカーブモニタ２０の最適視認位置よりも遠方に視認者がいることを示す信号を、コントローラ１１に送信する構成としてもよい。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a video display apparatus according to an embodiment of the present invention. As shown in FIG. 1, the video display device 1 according to the present embodiment includes a signal processing control unit 10 and a curve monitor 20 (display unit).
The signal processing control unit 10 includes a controller 11, a scaler 13, and a memory 14. The controller 11 includes firmware 12.
Hereinafter, in an example of the present embodiment, it is assumed that the video display device 1 includes a plurality of curve monitors 20 and the human sensor 30. However, the curve monitor 20 (display unit) may be configured as a single unit instead of a plurality of units, but in the present embodiment, description will be made on the assumption that the unit is configured with a plurality of units.
The human sensor 30 includes an optical sensor, an ultrasonic sensor, and the like, and detects the distance from the individual curve monitor 20 (monitor) to the viewer.
The controller 11 reads out information on the optimum visual recognition position of the individual curve monitor 20 from the memory 14, and determines whether or not there is a viewer farther than the optimum visual recognition position of the individual curve monitor 20 by the firmware 12. That is, the memory 14 stores the optimum visual recognition position of the individual curve monitor 20 in advance. Further, when the distance from the individual curve monitor 20 (monitor) detected by the human sensor 30 to the viewer is larger than the optimum viewing position of the individual curve monitor 20 stored in the memory 14, the firmware 12 is far away. It is determined that there is a viewer. In addition, it is good also as a structure which transmits the signal which shows that an operator is far from the optimal visual recognition position of the separate curve monitor 20 to the controller 11 from the exterior forcibly.
　コントローラ１１は、個別のカーブモニタ２０の持つ曲面や平面の情報（形状情報）を格納したメモリ１４から読み出してスケーラ１３に送る。すなわち、コントローラ１１は、遠方に視認者がいると判断した場合、個別のカーブモニタ２０の持つ形状情報をスケーラ１３に送る。
　スケーラ１３は、個別のカーブモニタ２０の持つ形状情報に応じて、次に述べる解決策に示す（画像補正に示す）方法で、入力する映像信号（表示映像）に対して画像処理（補正処理）を行う。スケーラ１３は、画像処理された映像信号（補正後の表示映像）を出力映像信号としてカーブモニタ２０に出力する。
　カーブモニタ２０では、スケーラが出力する出力映像信号により表示映像（補正後の画像）が表示される。なお、カーブモニタ２０（表示部）に表示される表示映像は、外部から入力される入力映像信号に限定されることはなく、映像表示装置１（表示装置）内部に保存されている画像（映像）などであってもよい。
　また、コントローラ１１は、カーブモニタ２０（表示部）が複数の表示部により構成された場合、複数のうちの１台のカーブモニタ２０が、視認者が最適視認位置より遠方にいることを検出すると、他のカーブモニタ２０に映像補正を行うように通知する構成であってよい。すなわち、映像表示装置１は、複数のカーブモニタ２０から視認者までの距離を検出する人感センサー３０と、最適視認位置を記憶するメモリ１４と、をさらに備えている。そのため、コントローラ１１は、他のカーブモニタ２０に映像補正を行うように通知するのみではなく、人感センサー３０が検出した距離とメモリ１４から読み出した最適視認位置を比較して、視認者が最適視認位置より遠方にいると判断した判断結果を通知してもよい。 The controller 11 reads out from the memory 14 storing the information (shape information) of the curved surface or plane of the individual curve monitor 20 and sends it to the scaler 13. That is, when the controller 11 determines that there is a viewer in the distance, the controller 11 sends the shape information of the individual curve monitor 20 to the scaler 13.
The scaler 13 performs image processing (correction processing) on an input video signal (display video) by a method shown in the following solution (shown in image correction) according to the shape information of the individual curve monitor 20. I do. The scaler 13 outputs an image-processed video signal (corrected display video) to the curve monitor 20 as an output video signal.
The curve monitor 20 displays a display video (corrected image) by an output video signal output from the scaler. The display video displayed on the curve monitor 20 (display unit) is not limited to an input video signal input from the outside, and an image (video) stored in the video display device 1 (display device). Or the like.
Further, when the curve monitor 20 (display unit) is configured by a plurality of display units, the controller 11 detects that the viewer is far from the optimal viewing position when one of the plurality of curve monitors 20 is located. The other curve monitor 20 may be notified to perform video correction. That is, the video display device 1 further includes a human sensor 30 that detects the distances from the plurality of curve monitors 20 to the viewer, and a memory 14 that stores the optimal viewing position. For this reason, the controller 11 not only notifies the other curve monitor 20 to perform image correction, but also compares the distance detected by the human sensor 30 with the optimal visual recognition position read from the memory 14 so that the viewer is optimal. You may notify the judgment result judged that it is far from a visual recognition position.
　続いて、スケーラ１３が実行する画像補正の方法について、図２～図４を参照して説明する。
　図２は、スケーラが画像補正を実行しない場合のカーブモニタ２０に表示される画像を説明するための図である。
　図２（ａ）は、カーブモニタ２０の最適な視認位置Ｐｉｒ、視認者の位置Ｐｆｒを示しており、図２（ｂ）は、視認者の位置Ｐｆｒから視認した場合の画像（イメージ）を示している。なお、図２においては、互いに直交するＸ軸、Ｙ軸、Ｚ軸のうち、カーブモニタ２０は、図２（ａ）が示すように、図面に対して垂直な方向（Ｙ軸方向）に高さを持って設置され、Ｙ軸に対して垂直なＸＺ平面において曲面を有している。また、カーブモニタ２０が表示する画像は、図２（ｂ）が示すように、ＸＹ平面において表示されるものとする。以下、本実施形態における図面の説明においては、Ｘ軸、Ｙ軸、Ｚ軸を、以上の定義を用いて説明をする。
　図２（ａ）に示すように、表示画面が曲面となっているカーブモニタ２０はその曲率に応じた最適な視認位置Ｐｉｒ（カーブモニタにおける曲率半径の中心を示す位置）が存在する。図２（ｂ）に示すように、カーブモニタ２０を曲率半径の中心（図の視認位置Ｐｉｒ）より遠方（図の視認者の位置Ｐｆｒ）から視認した場合の画像は歪んでしまう。
　このように、一般的なカーブモニタ２０は、図２（ａ）に示すように、円弧部分と直線部分（第１の直線部分と第２の直線部分）の組み合わせの表示面を持っているので、図３、図４、図５に示す方法を用いて画像補正を実行する。 Next, an image correction method executed by the scaler 13 will be described with reference to FIGS.
FIG. 2 is a diagram for explaining an image displayed on the curve monitor 20 when the scaler does not perform image correction.
2A shows the optimal viewing position Pir and viewer position Pfr of the curve monitor 20, and FIG. 2B shows an image (image) when viewed from the viewer position Pfr. ing. In FIG. 2, among the X, Y, and Z axes orthogonal to each other, the curve monitor 20 is high in a direction perpendicular to the drawing (Y axis direction) as shown in FIG. It has a curved surface in the XZ plane perpendicular to the Y axis. Further, the image displayed by the curve monitor 20 is displayed on the XY plane as shown in FIG. Hereinafter, in the description of the drawings in the present embodiment, the X axis, the Y axis, and the Z axis will be described using the above definitions.
As shown in FIG. 2A, the curve monitor 20 having a curved display screen has an optimum visual position Pir (a position indicating the center of the radius of curvature in the curve monitor) according to the curvature. As shown in FIG. 2B, the image when the curve monitor 20 is viewed from a position farther away from the center of curvature radius (viewing position Pir in the figure) (viewer position Pfr in the figure) is distorted.
Thus, as shown in FIG. 2A, the general curve monitor 20 has a display surface of a combination of an arc portion and a straight portion (first straight portion and second straight portion). The image correction is executed using the methods shown in FIGS.
　図３は、図２におけるカーブモニタの第１の直線部分の補正を説明するための図である。図３において、第１の直線部分、円弧部分は、それぞれ図２に示した第１の直線部分、円弧部分である。
　図３に示す長さ（ａ）の第１の直線部分は、遠方より見ると、カーブモニタ２０の前面端部を結んだ直線（ＸＹ平面）において、カーブモニタの第１の直線部分の端部Ｂから垂直に引いた直線との交点Ｄから、カーブモニタ端部Ａまでの長さ（ｂ）に圧縮されて視認される。なお、カーブモニタ２０の前面端部を結んだ直線（ＸＹ平面）とは、カーブモニタ２０が表示する画像のＸＹ平面と平行な平面である。また、カーブモニタ２０の前面端部を結んだ直線とは、当該ＸＹ平面において、Ｘ軸に平行な直線である。
　スケーラ１３は、長さ（ａ）の第１の直線部分がカーブモニタ端部Ａまでの長さ（ｂ）に圧縮されて視認されるため、カーブモニタ２０の前面端部を結んだ直線（ＸＹ平面）上で長さ（ａ）となるように、映像信号を伸張して補正する。
　具体的には、スケーラ１３は、補正前の直線部分の映像信号幅を（Ｗ１）、補正後にカーブモニタ２０に印加する映像信号幅を（Ｗ２）とすると、たとえば直線的な補間と考えて、Ｗ２＝Ｗ１×（ａ／ｂ）の計算を実施して信号補正を実行する。なお、映像信号幅は、上記ＸＹ平面におけるＸ方向の幅である。 FIG. 3 is a diagram for explaining correction of the first straight line portion of the curve monitor in FIG. In FIG. 3, a first straight line portion and a circular arc portion are the first straight line portion and the circular arc portion shown in FIG. 2, respectively.
When viewed from a distance, the first straight line portion having the length (a) shown in FIG. 3 is an end portion of the first straight line portion of the curve monitor in a straight line (XY plane) connecting the front end portions of the curve monitor 20. It is visually compressed after being compressed to a length (b) from the intersection D with a straight line drawn vertically from B to the end A of the curve monitor. The straight line (XY plane) connecting the front end portions of the curve monitor 20 is a plane parallel to the XY plane of the image displayed by the curve monitor 20. The straight line connecting the front end portions of the curve monitor 20 is a straight line parallel to the X axis on the XY plane.
Since the scaler 13 is visually recognized by compressing the first straight line portion of the length (a) to the length (b) up to the curve monitor end A, the straight line (XY) connecting the front end of the curve monitor 20 The video signal is expanded and corrected so as to have a length (a) on the plane.
Specifically, the scaler 13 considers, for example, linear interpolation when the video signal width of the straight line portion before correction is (W1) and the video signal width applied to the curve monitor 20 after correction is (W2). The signal correction is performed by calculating W2 = W1 × (a / b). The video signal width is the width in the X direction on the XY plane.
　図４は、図２におけるカーブモニタの第２の直線部分の補正を説明するための図である。図４において、第２の直線部分、円弧部分は、それぞれ図２に示した第２の直線部分、円弧部分である。
　図４に示す長さ（ｃ）の第２の直線部分は、遠方より見ると、カーブモニタ２０の前面端部を結んだ直線（ＸＹ平面）において、カーブモニタ２０の直線部分の端部Ｂから垂直に引いた直線との交点Ｄから、カーブモニタ端部Ａまでの長さ（ｄ）に圧縮されて視認される。
　スケーラ１３は、長さ（ｃ）の第２の直線部分がカーブモニタ端部Ａまでの長さ（ｄ）に圧縮されて視認されるため、カーブモニタ２０の前面端部を結んだ直線（ＸＹ平面）上で長さ（ｃ）となるように、映像信号を伸張して補正する。
　具体的には、スケーラ１３は、補正前の直線部分の映像信号幅を（W３）、補正後にカーブモニタ２０に印加する映像信号幅を（W４）とすると、たとえば直線的な補間と考えて、Ｗ４＝Ｗ３×（ｃ／ｄ）の計算を実施して信号補正を実行する。 FIG. 4 is a diagram for explaining correction of the second straight line portion of the curve monitor in FIG. In FIG. 4, the second straight line portion and the circular arc portion are the second straight line portion and the circular arc portion shown in FIG. 2, respectively.
When viewed from a distance, the second straight line portion having the length (c) shown in FIG. 4 is from the end B of the straight line portion of the curve monitor 20 on the straight line (XY plane) connecting the front end portions of the curve monitor 20. It is visually compressed after being compressed to a length (d) from the intersection D with the straight line drawn vertically to the end A of the curve monitor.
Since the scaler 13 is visually recognized by compressing the second straight line portion having the length (c) to the length (d) up to the curve monitor end A, the straight line (XY) connecting the front end portions of the curve monitor 20 The video signal is expanded and corrected so as to have a length (c) on the plane.
Specifically, the scaler 13 considers, for example, linear interpolation when the video signal width of the straight line portion before correction is (W3) and the video signal width applied to the curve monitor 20 after correction is (W4). Calculation of W4 = W3 × (c / d) is performed to perform signal correction.
　図５は、図２におけるカーブモニタの円弧部分の補正を説明するための図である。図５において、第１の直線部分、第２の直線部分、円弧部分は、それぞれ図２に示した第１の直線部分、第２の直線部分、円弧部分である。なお、カーブモニタ２０の円弧部分を結んだ線（ＸＹ平面）とは、カーブモニタ２０が表示する画像とのＸＹ平面と平行な平面である。また、補正前の信号表示領域をW５で、補正後の信号表示領域をW６（破線部分）で示している。
　図４に示す長さ（ｅ）の円弧部分は、遠方より見ると画像が広がった状態に視認される。
　スケーラ１３は、長さ（ｅ）の円弧部分が広がった状態に視認されるため、カーブモニタ２０の円弧部分の長さ（ｅ）を、カーブモニタの円弧部分の端部を結んだ直線（ＸＹ平面）の長さ（ｆ）となるように、映像信号を圧縮して補正する。
　具体的には、スケーラ１３は、補正前の円弧部分の映像信号幅を（W５）、補正後にカーブモニタ２０に印加する映像信号幅（W６）とすると、たとえば計算簡略化のため、W６＝Ｗ５×（ｆ／ｅ）の計算を実施して信号補正を実行する。 FIG. 5 is a diagram for explaining correction of the arc portion of the curve monitor in FIG. In FIG. 5, the first straight line portion, the second straight line portion, and the arc portion are the first straight line portion, the second straight line portion, and the arc portion shown in FIG. 2, respectively. Note that the line (XY plane) connecting the arc portions of the curve monitor 20 is a plane parallel to the XY plane with the image displayed by the curve monitor 20. Further, the signal display area before correction is indicated by W5, and the signal display area after correction is indicated by W6 (broken line portion).
When viewed from a distance, the arc portion having the length (e) shown in FIG.
Since the scaler 13 is visually recognized in a state where the arc portion of the length (e) is widened, the length (e) of the arc portion of the curve monitor 20 is set to a straight line (XY) connecting the end portions of the arc portion of the curve monitor. The video signal is compressed and corrected so as to have the length (f) of the plane.
Specifically, the scaler 13 assumes that the video signal width of the arc portion before correction is (W5) and the video signal width (W6) applied to the curve monitor 20 after correction, for example, W6 = W5 for simplification of calculation. The signal correction is performed by calculating x (f / e).
　図３～５で説明した画像補正を組み合わせ、円弧部分の表示画像を圧縮し、直線部分については伸張した表示状態とすることで、カーブモニタを曲率半径の中心より遠方から見た場合も表示画像が歪まずに視認される。
　図６は、スケーラ１３が実行する信号補正について説明するための図である。
　図６（ａ）では、映像補正前のカーブモニタ２０と映像補正後のカーブモニタ２０、視認者の位置Ｐｆｒを示しており、図６（ｂ）は、視認者の位置Ｐｆｒから視認した場合の画像（イメージ）を示している。
　図６（ａ）に示すように、映像補正前のカーブモニタ２０は、円弧部分と直線部分（第１の直線部分と第２の直線部分）の組み合わせの表示面を持っているので、映像補正後のカーブモニタ２０では、図３、図４、図５に示す方法を用いて円弧部分の表示画像を破線の幅に圧縮し、直線部分については伸張した表示状態となるように画像補正を実行する。
　このように、図３～５の画像補正を組み合わせることで、カーブモニタ２０を曲率半径の中心より遠方（図の視認者の位置Ｐｆｒ）から見た場合、図６（ｂ）に示すように表示画像が歪まずに視認される。 Combined with the image correction described with reference to FIGS. 3 to 5, the display image of the arc portion is compressed and the linear portion is expanded, so that the display image is displayed even when the curve monitor is viewed from a distance from the center of the radius of curvature. Is visible without distortion.
FIG. 6 is a diagram for describing signal correction performed by the scaler 13.
FIG. 6A shows the curve monitor 20 before the image correction, the curve monitor 20 after the image correction, and the viewer position Pfr. FIG. 6B shows the case where the viewer is viewing from the viewer position Pfr. An image is shown.
As shown in FIG. 6A, the curve monitor 20 before image correction has a display surface of a combination of an arc portion and a straight line portion (first straight line portion and second straight line portion). The later curve monitor 20 uses the method shown in FIGS. 3, 4, and 5 to compress the display image of the arc portion to the width of the broken line and perform image correction so that the linear portion is expanded. To do.
Thus, by combining the image corrections of FIGS. 3 to 5, when the curve monitor 20 is viewed from a position farther from the center of the radius of curvature (the position Pfr of the viewer in the figure), the display is as shown in FIG. 6B. The image is visible without distortion.
　また、図３～５の画像補正を組み合わせた結果、カーブモニタ２０を複数台設置して大画面を構成し、視認者の位置がモニタ個別の最適位置Ｐｉｒより遠方（視認者の位置Ｐｆｒ）となった場合でも、歪みのない表示画像が視認される。
　図７は、スケーラ１３が実行する複数台のカーブモニタの信号補正について説明するための図である。
　図７（ａ）は、複数台（３台）のカーブモニタ２０各々の最適な視認位置Ｐｉｒを示しており、図７（ｂ）は、視認者が遠方より視認した際のカーブモニタ２０における画像を示している。スケーラ１３が個別のカーブモニタ２０の画像を補正することで、遠方（視認者の位置Ｐｆｒ）から見ても、図７（ｂ）に示すように違和感なく視認される。
　このように、図３～５の画像補正を組み合わせた結果、カーブモニタ２０を複数台設置して大画面を構成し、視認者の位置がモニタ個別の最適位置Ｐｉｒより遠方（視認者の位置Ｐｆｒ）となった場合でも、歪みのない表示画像が視認される。 Further, as a result of combining the image corrections of FIGS. 3 to 5, a plurality of curve monitors 20 are installed to form a large screen, and the position of the viewer is far from the optimum position Pir for each monitor (viewer position Pfr). Even in such a case, a display image without distortion is visually recognized.
FIG. 7 is a diagram for explaining signal correction of a plurality of curve monitors executed by the scaler 13.
FIG. 7A shows the optimum visual recognition position Pir of each of a plurality (three) of curve monitors 20, and FIG. 7B shows an image on the curve monitor 20 when the viewer visually recognizes from a distance. Is shown. When the scaler 13 corrects the image of the individual curve monitor 20, even when viewed from a distance (viewer's position Pfr), the scaler 13 is visually recognized as shown in FIG. 7B.
As described above, as a result of combining the image corrections of FIGS. 3 to 5, a plurality of curve monitors 20 are installed to form a large screen, and the position of the viewer is far from the optimum position Pir for each monitor (the position Pfr of the viewer). ), A display image without distortion is visually recognized.
　次に、本発明の実施形態に係る映像表示装置１での映像補正処理の他の例として、図１に示す感知センサー４０を用いた例について説明する。
　感知センサー４０は、個別のカーブモニタ２０の端部の接触を電気的や光学的に検出するセンサーなどで構成される。そのため、感知センサー４０は、複数台設置されており、カーブモニタ２０が、図８に示すような複数台設置されたことを感知する。図８は、カーブモニタ２０を複数台設置する例について説明するための図である。図８（ａ）は、カーブモニタ２０を水平方向（Ｘ方向）に複数台（３台）設置し、垂直方向（Ｚ方向）に複数台（３台）設置し、大画面を構成する場合である。また、図８（ｂ）は、カーブモニタ２０を水平および垂直方向に複数台（３×３＝９台）設置し、大画面を構成する場合である。
　コントローラ１１およびファームウエア１２は、カーブモニタ２０の複数台設置を検知した場合は，大画面構成のため視認者が個別のカーブモニタ２０の最適視認位置Ｐｉｒよりも遠方に視認者がいるか否かを判断する。なお、操作者が外部より強制的にカーブモニタ２０が複数台設置状態にあることを示す信号を、コントローラ１１に送信する構成としてもよい。
　コントローラ１１は、個別のカーブモニタ２０の持つ曲面や平面の情報（形状情報）を、格納したメモリ１４から読み出してスケーラ１３に送る。すなわち、コントローラ１１は、遠方に視認者がいると判断した場合、個別のカーブモニタ２０の持つ形状情報をスケーラ１３に送る。
　スケーラ１３は、個別のカーブモニタ２０の持つ形状情報に応じて、先の解決策に示したような方法で、入力映像信号（表示映像）に対して画像処理を実行する。スケーラ１３は、画像処理された出力映像信号（補正後の表示映像）をカーブモニタ２０に出力する。
　個別のカーブモニタ２０は、画像処理された出力映像信号により表示映像（補正後の画像）を表示する。なお、カーブモニタ２０（表示部）に表示される表示映像は、外部から入力される入力映像信号に限定されることはなく、映像表示装置１（表示装置）内部に保存されている画像（映像）などであってもよい。
　また、コントローラ１１は、カーブモニタ２０（表示部）が複数の表示部により構成された場合、複数のうちの１台のカーブモニタ２０が、視認者が最適視認位置より遠方にいることを検出すると、他のカーブモニタ２０に映像補正を行うように通知する構成であってよい。すなわち、映像表示装置１は、カーブモニタ２０（表示部）が複数台設置されたことを感知する感知センサー４０を備えている。そのため、コントローラ１１は、他のカーブモニタ２０に映像補正を行うように通知するのみではなく、感知センサー４０が、カーブモニタ２０が複数台設置されたことを感知した場合、視認者が最適視認位置より遠方にいると判断した判断結果を通知してもよい。 Next, an example using the sensing sensor 40 shown in FIG. 1 will be described as another example of the image correction processing in the image display apparatus 1 according to the embodiment of the present invention.
The sensing sensor 40 is configured by a sensor that electrically or optically detects the contact of the end portion of the individual curve monitor 20. Therefore, a plurality of detection sensors 40 are installed, and the curve monitor 20 detects that a plurality of detection sensors 40 are installed as shown in FIG. FIG. 8 is a diagram for explaining an example in which a plurality of curve monitors 20 are installed. FIG. 8A shows a case where a plurality of (three) curve monitors 20 are installed in the horizontal direction (X direction) and a plurality (three) are installed in the vertical direction (Z direction) to form a large screen. is there. FIG. 8B shows a case where a plurality of curve monitors 20 (3 × 3 = 9) are installed in the horizontal and vertical directions to configure a large screen.
When the controller 11 and the firmware 12 detect the installation of a plurality of curve monitors 20, it is determined whether or not the viewer is far away from the optimum viewing position Pir of the individual curve monitor 20 because of the large screen configuration. to decide. In addition, it is good also as a structure which transmits to the controller 11 the signal which shows that an operator forcibly has the plurality of curve monitors 20 installed from the outside.
The controller 11 reads the curved surface and plane information (shape information) of the individual curve monitor 20 from the stored memory 14 and sends the information to the scaler 13. That is, when the controller 11 determines that there is a viewer in the distance, the controller 11 sends the shape information of the individual curve monitor 20 to the scaler 13.
The scaler 13 performs image processing on the input video signal (display video) by the method shown in the previous solution according to the shape information of the individual curve monitor 20. The scaler 13 outputs an output video signal (corrected display video) subjected to image processing to the curve monitor 20.
The individual curve monitor 20 displays a display video (corrected image) by the output video signal subjected to the image processing. The display video displayed on the curve monitor 20 (display unit) is not limited to an input video signal input from the outside, and an image (video) stored in the video display device 1 (display device). Or the like.
Further, when the curve monitor 20 (display unit) is configured by a plurality of display units, the controller 11 detects that the viewer is far from the optimal viewing position when one of the plurality of curve monitors 20 is located. The other curve monitor 20 may be notified to perform video correction. That is, the video display device 1 includes a detection sensor 40 that detects that a plurality of curve monitors 20 (display units) are installed. For this reason, the controller 11 not only notifies other curve monitors 20 to perform image correction, but also when the sensing sensor 40 senses that a plurality of curve monitors 20 are installed, the viewer can recognize the optimal viewing position. The determination result determined to be farther away may be notified.
　なお、上記実施形態の説明においては、円の一部に直線を組み合わせた形状の構成を有するカーブモニタ２０を一例として示した。カーブモニタが有する形状の構成は、次に説明するように、表示画面が曲面を含む形状を有する構成であればよい。
　図９は、カーブモニタが有する形状の構成を説明するための図である。図９（ａ）に示すカーブモニタ２０は、実施形態の説明において上述したように、一般的なカーブモニタの曲面構成であり、円Ｃの一部（円弧部分）に直線（第１の直線部分と第２の直線部分）を組み合わせた構成を有する。
　スケーラ１３は、円Ｃの一部においては水平方向（図３～６に示すＸ方向）に表示画像を圧縮し、直線部分（第１の直線部分と第２の直線部分）においては水平方向に表示画像を拡大するなどの補正を行い、最終的に全てのカーブモニタを水平に見る位置から視認した際に違和感が生じないように、カーブモニタが表示する画像が調整される。 In the description of the above embodiment, the curve monitor 20 having a configuration in which a straight line is combined with a part of a circle is shown as an example. The configuration of the shape of the curve monitor may be any configuration as long as the display screen has a shape including a curved surface, as will be described below.
FIG. 9 is a diagram for explaining the configuration of the shape of the curve monitor. The curve monitor 20 shown in FIG. 9A is a curved surface configuration of a general curve monitor as described above in the description of the embodiment, and a straight line (first straight line portion) is formed on a part of the circle C (arc portion). And the second linear portion).
The scaler 13 compresses the display image in the horizontal direction (X direction shown in FIGS. 3 to 6) in a part of the circle C, and in the horizontal direction in the straight line parts (first straight line part and second straight line part). Corrections such as enlarging the display image are performed, and the image displayed on the curve monitor is adjusted so as not to cause a sense of incongruity when all the curve monitors are finally viewed from a horizontal viewing position.
　図９（ｂ）に示すカーブモニタ２０ａは、円Ｃや楕円の一部のみの円弧で構成される形状を有する。
　スケーラ１３は、円弧の中央部においては水平方向（図３～６に示すＸ方向）に表示画像を圧縮し、円弧の端部においても水平方向に表示画像を圧縮するなどの補正を行い、最終的に全てのモニタを水平に見る位置から視認した際に違和感が生じないように、カーブモニタが表示する画像が調整される。 The curve monitor 20a shown in FIG. 9B has a shape constituted by a circle C or an arc of only a part of an ellipse.
The scaler 13 performs correction such as compressing the display image in the horizontal direction (X direction shown in FIGS. 3 to 6) at the center of the arc, and compressing the display image in the horizontal direction also at the end of the arc. Thus, the image displayed on the curve monitor is adjusted so that no uncomfortable feeling is produced when all the monitors are viewed from the horizontal viewing position.
　図９（ｃ）に示すカーブモニタ２０ｂは、複数の円または楕円（任意の曲線）および直線の組み合わせによって構成される形状を有する。
　スケーラ１３は、各曲線および直線部分に応じた表示画像の拡大縮小などの補正を行い、最終的に全てのモニタを水平に見る位置から視認した際に違和感が生じないように、カーブモニタが表示する画像が調整される。 The curve monitor 20b shown in FIG. 9C has a shape constituted by a combination of a plurality of circles or ellipses (arbitrary curves) and straight lines.
The scaler 13 performs corrections such as enlargement / reduction of the display image according to each curve and straight line portion, and the curve monitor displays the final display so that no uncomfortable feeling is generated when all the monitors are viewed from the horizontal position. The image to be adjusted is adjusted.
　図１０は、本発明による映像表示装置の基本構成を示す概略ブロック図である。本発明による映像表示装置１の基本構成は、図１０に示すとおりである。すなわち、本発明による映像表示装置１は、カーブモニタ２０（表示部）と、スケーラ１３と、コントローラ１１と、を備える。
　カーブモニタ２０は、映像を表示する表示面が曲面を含む形状を有する。
　スケーラ１３は、カーブモニタ２０に表示させる表示映像に対して、表示面の形状に基づく補正である映像補正を行う。
　コントローラ１１は、カーブモニタ２０の視認者がカーブモニタ２０の最適視認位置より遠方にいると、スケーラ１３に映像補正を行わせる。 FIG. 10 is a schematic block diagram showing the basic configuration of the video display apparatus according to the present invention. The basic configuration of the video display device 1 according to the present invention is as shown in FIG. That is, the video display device 1 according to the present invention includes a curve monitor 20 (display unit), a scaler 13, and a controller 11.
The curve monitor 20 has a shape in which a display surface for displaying an image includes a curved surface.
The scaler 13 performs video correction, which is correction based on the shape of the display surface, on the display video displayed on the curve monitor 20.
When the viewer of the curve monitor 20 is far from the optimal viewing position of the curve monitor 20, the controller 11 causes the scaler 13 to perform video correction.
　スケーラ１３は、映像補正を行う際、カーブモニタ２０の視認者がカーブモニタ２０を最適視認位置より遠方から視認したときに発生する表示映像の歪みを表示面の形状に基づき補正する。
　すなわち、スケーラ１３は、形状のうち、直線部分に関しては表示映像の幅を伸長し、円弧部分に関しては表示映像の幅を圧縮し、補正後の表示映像を生成する。 The scaler 13 corrects, based on the shape of the display surface, distortion of the display image that occurs when the viewer of the curve monitor 20 visually recognizes the curve monitor 20 from a distance from the optimal viewing position.
That is, the scaler 13 expands the width of the display image for the straight line portion of the shape, compresses the width of the display image for the arc portion, and generates a corrected display image.
　なお、映像表示装置１は次の構成（図１に示す構成）であってもよい。
　コントローラ１１は、カーブモニタ２０が複数のカーブモニタ２０により構成された場合、複数のうちの１台のカーブモニタ２０が、視認者が最適視認位置より遠方にいることを検出すると、他のカーブモニタ２０に映像補正を行うように通知する構成であって良い。
　例えば、映像表示装置１は、複数のカーブモニタ２０から視認者までの距離を検出する人感センサー３０と、最適視認位置Ｐｉｒを記憶するメモリ１４と、をさらに備える。
　コントローラ１１は、人感センサー３０が検出した距離とメモリ１４から読み出した最適視認位置Ｐｉｒを比較して、視認者が最適視認位置Ｐｉｒより遠方（視認者の位置Ｐｆｒ）にいると判断する。
　或いは、映像表示装置１は、複数のカーブモニタ２０が複数台設置されたことを感知する感知センサー４０を備える。
　コントローラ１１は、感知センサー４０が、カーブモニタ２０が複数台設置されたことを感知した場合、視認者が最適視認位置Ｐｉｒより遠方（視認者の位置Ｐｆｒ）にいると判断する。 The video display device 1 may have the following configuration (configuration shown in FIG. 1).
When the curve monitor 20 is composed of a plurality of curve monitors 20, the controller 11 detects that the viewer is far from the optimum viewing position when one of the plurality of curve monitors 20 detects that the viewer is far from the optimum viewing position. 20 may be configured to notify the image correction to be performed.
For example, the video display device 1 further includes a human sensor 30 that detects the distances from the plurality of curve monitors 20 to the viewer, and a memory 14 that stores the optimal viewing position Pir.
The controller 11 compares the distance detected by the human sensor 30 with the optimum visual recognition position Pir read from the memory 14, and determines that the viewer is far from the optimum visual recognition position Pir (the viewer's position Pfr).
Alternatively, the video display device 1 includes a detection sensor 40 that detects that a plurality of curve monitors 20 are installed.
When the sensing sensor 40 senses that a plurality of curve monitors 20 are installed, the controller 11 determines that the viewer is far from the optimal viewing position Pir (viewer position Pfr).
　これにより、カーブモニタ２０が複数台となっても、スケーラ１３は、入力映像信号（表示映像）をカーブモニタの形状情報に応じて補正し、補正後の映像出力信号（補正後の表示映像）を複数のカーブモニタ２０に出力し、複数のカーブモニタ２０に映像出力信号（補正後の表示映像）を表示させるので、視認者が表示画像の歪みを認識しない映像表示装置１、映像表示装置１の制御方法を提供することができる。 Thereby, even if there are a plurality of curve monitors 20, the scaler 13 corrects the input video signal (display video) according to the shape information of the curve monitor, and the corrected video output signal (corrected display video). Are output to the plurality of curve monitors 20 and the video output signals (corrected display images) are displayed on the plurality of curve monitors 20, so that the viewer does not recognize the distortion of the display image. A control method can be provided.
　以上、本発明の実施形態について図面を参照して詳述してきたが、具体的な構成はこの実施形態に限られるものではなく、この発明の要旨を逸脱しない範囲の設計変更等も含まれる。 As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like without departing from the gist of the present invention.
　１　　映像表示装置
　１０　　信号処理制御部
　１１　　コントローラ
　１２　　ファームウエア
　１３　　スケーラ
　１４　　メモリ
　２０，２０ａ，２０ｂ　　カーブモニタ
　３０　　人感センサー
　４０　　感知センサー DESCRIPTION OF SYMBOLS 1 Video display apparatus 10 Signal processing control part 11 Controller 12 Firmware 13 Scaler 14 Memory 20, 20a, 20b Curve monitor 30 Human sensor 40 Sensor sensor

Claims (7)

  1. 　映像を表示する表示面が曲面を含む形状を有する表示部と、
    　前記表示部に表示させる表示映像に対して、前記表示面の形状に基づく補正である映像補正を行うスケーラと、
    　前記表示部の視認者が前記表示部の最適視認位置より遠方にいると、前記スケーラに映像補正を行わせるコントローラと、
    　を備えることを特徴とする映像表示装置。     A display unit having a shape in which a display surface for displaying an image includes a curved surface;
    A scaler that performs image correction, which is correction based on the shape of the display surface, with respect to a display image to be displayed on the display unit;
    When the viewer of the display unit is far from the optimal viewing position of the display unit, the controller that causes the scaler to perform image correction;
    A video display device comprising:
  2. 　前記スケーラは、前記映像補正を行う際、前記表示部の視認者が前記表示部を前記最適視認位置より遠方から視認したときに発生する表示映像の歪みを前記表示面の形状に基づき補正する
    　ことを特徴とする請求項１に記載の映像表示装置。     The scaler corrects, based on the shape of the display surface, distortion of a display image that occurs when a viewer of the display unit visually recognizes the display unit from a distance from the optimum viewing position when performing the image correction. The video display device according to claim 1.
  3. 　前記スケーラは、前記形状のうち、直線部分に関しては前記表示映像の幅を伸長し、円弧部分に関しては前記表示映像の幅を圧縮し、補正後の表示映像を生成することを特徴とする請求項２に記載の映像表示装置。 The scaler generates a corrected display image by expanding the width of the display image with respect to a straight line portion of the shape and compressing the width of the display image with respect to an arc portion. 2. The video display device according to 2.
  4. 　前記コントローラは、前記表示部が複数の表示部により構成された場合、複数のうちの１台の表示部が、前記視認者が前記最適視認位置より遠方にいることを検出すると、他の表示部に前記映像補正を行うように通知することを特徴とする請求項１から請求項３いずれか一項に記載の映像表示装置。 When the display unit is configured by a plurality of display units, the controller detects that the viewer is far from the optimum viewing position when another display unit detects that the viewer is far from the optimum viewing position. The video display device according to claim 1, wherein the video display device is notified to perform the video correction.
  5. 　前記複数の表示部から前記視認者までの距離を検出する人感センサーと、
    　前記最適視認位置を記憶するメモリと、をさらに備え、
    　前記コントローラは、前記人感センサーが検出した前記距離と前記メモリから読み出した前記最適視認位置を比較して、前記視認者が前記最適視認位置より遠方にいると判断することを特徴とする請求項４に記載の映像表示装置。     A human sensor for detecting a distance from the plurality of display units to the viewer;
    A memory for storing the optimum visual recognition position;
    The controller compares the distance detected by the human sensor with the optimum viewing position read from the memory, and determines that the viewer is far from the optimum viewing position. 5. The video display device according to 4.
  6. 　前記表示部が複数台設置されたことを感知する感知センサーを備え、
    　前記コントローラは、前記感知センサーが、前記表示部が複数台設置されたことを感知した場合、前記視認者が前記最適視認位置より遠方にいると判断することを特徴とする請求項４に記載の映像表示装置。     A detection sensor for detecting that a plurality of the display units are installed;
    5. The controller according to claim 4, wherein the controller determines that the viewer is far from the optimum viewing position when the sensing sensor senses that a plurality of the display units are installed. Video display device.
  7. 　映像を表示する表示面が曲面を含む形状を有する表示部を備える映像表示装置の制御方法であって、
    　前記表示部に表示させる表示映像に対して、前記表示面の形状に基づく補正である映像補正を行う映像補正工程と、
    　前記表示部の視認者が前記表示部の最適視認位置より遠方にいると、前記映像補正を行わせる映像補正指示工程と、
    　を備えることを特徴とする映像表示装置の制御方法。     A method for controlling a video display device comprising a display unit having a display surface on which a video display surface includes a curved surface,
    A video correction step of performing video correction, which is correction based on the shape of the display surface, on the display video to be displayed on the display unit;
    When the viewer of the display unit is far from the optimal viewing position of the display unit, a video correction instruction step for performing the video correction;
    A method for controlling a video display device, comprising:
PCT/JP2017/009441 2017-03-09 2017-03-09 Video display apparatus and control method for video display apparatus WO2018163348A1 (en)

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