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WO2018163348A1 - Appareil d'affichage vidéo, et procédé de commande d'appareil d'affichage vidéo - Google Patents

Appareil d'affichage vidéo, et procédé de commande d'appareil d'affichage vidéo 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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WO
WIPO (PCT)
Prior art keywords
display
video
correction
image
viewer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/009441
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English (en)
Japanese (ja)
Inventor
高橋　淳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp NEC Display Solutions Ltd
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NEC Display Solutions Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Display Solutions Ltd filed Critical NEC Display Solutions Ltd
Priority to PCT/JP2017/009441 priority Critical patent/WO2018163348A1/fr
Priority to JP2019504219A priority patent/JP6786703B2/ja
Publication of WO2018163348A1 publication Critical patent/WO2018163348A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

L'invention concerne un appareil d'affichage vidéo comprenant : une unité d'affichage dont une surface d'affichage pour afficher une vidéo a une forme comprenant une surface incurvée ; un dispositif de mise à l'échelle pour implémenter une correction vidéo, qui est une correction basée sur la forme de la surface d'affichage, par rapport à une vidéo d'affichage devant être affichée sur l'unité d'affichage ; et un contrôleur pour amener le dispositif de mise à l'échelle à implémenter la correction vidéo lorsqu'un observateur de l'unité d'affichage se trouve à une position plus éloignée qu'une position de visualisation optimale de l'unité d'affichage.
PCT/JP2017/009441 2017-03-09 2017-03-09 Appareil d'affichage vidéo, et procédé de commande d'appareil d'affichage vidéo Ceased WO2018163348A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2017/009441 WO2018163348A1 (fr) 2017-03-09 2017-03-09 Appareil d'affichage vidéo, et procédé de commande d'appareil d'affichage vidéo
JP2019504219A JP6786703B2 (ja) 2017-03-09 2017-03-09 映像表示装置、映像表示装置の制御方法

Applications Claiming Priority (1)

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PCT/JP2017/009441 WO2018163348A1 (fr) 2017-03-09 2017-03-09 Appareil d'affichage vidéo, et procédé de commande d'appareil d'affichage vidéo

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WO2018163348A1 true WO2018163348A1 (fr) 2018-09-13

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001184040A (ja) * 1999-12-24 2001-07-06 Hitachi Ltd 画像データ表示システム及び画像データ生成方法
JP2010054643A (ja) * 2008-08-27 2010-03-11 Sharp Corp 表示システム
WO2011059071A1 (fr) * 2009-11-12 2011-05-19 シャープ株式会社 Unité d'affichage et dispositif d'affichage
JP2014191182A (ja) * 2013-03-27 2014-10-06 Canon Inc 可撓性表示装置及びその制御方法
JP2015004727A (ja) * 2013-06-19 2015-01-08 シャープ株式会社 表示装置および表示方法
JP2015075516A (ja) * 2013-10-07 2015-04-20 ソニー株式会社 画像処理装置、画像処理方法、および表示装置
JP2015228014A (ja) * 2014-04-18 2015-12-17 株式会社半導体エネルギー研究所 表示装置および、その動作方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001184040A (ja) * 1999-12-24 2001-07-06 Hitachi Ltd 画像データ表示システム及び画像データ生成方法
JP2010054643A (ja) * 2008-08-27 2010-03-11 Sharp Corp 表示システム
WO2011059071A1 (fr) * 2009-11-12 2011-05-19 シャープ株式会社 Unité d'affichage et dispositif d'affichage
JP2014191182A (ja) * 2013-03-27 2014-10-06 Canon Inc 可撓性表示装置及びその制御方法
JP2015004727A (ja) * 2013-06-19 2015-01-08 シャープ株式会社 表示装置および表示方法
JP2015075516A (ja) * 2013-10-07 2015-04-20 ソニー株式会社 画像処理装置、画像処理方法、および表示装置
JP2015228014A (ja) * 2014-04-18 2015-12-17 株式会社半導体エネルギー研究所 表示装置および、その動作方法

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JPWO2018163348A1 (ja) 2019-06-27

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