News Column

Patent Application Titled "Three-Dimensional Video Display Device, Control Method Thereof, and Screen Adjusting Program" Published Online

August 21, 2014



By a News Reporter-Staff News Editor at Politics & Government Week -- According to news reporting originating from Washington, D.C., by VerticalNews journalists, a patent application by the inventor Mase, Jitsuro (Hiroshima, JP), filed on September 14, 2012, was made available online on August 7, 2014.

The assignee for this patent application is Pulk Pte. Ltd.

Reporters obtained the following quote from the background information supplied by the inventors: "A three-dimensional video display device that displays a video displayed in a two-dimensional video display device as a three-dimensional video using a mirror assembly including a plurality of half mirrors has been known. For example, a three-dimensional video display device which is suggested in this invention is disclosed in Patent Document 1. In other words, using a mirror device having a plurality of mirrors (half mirrors and total reflection mirror) which are inclined on a screen of the two-dimensional video display device toward an observer at a predetermined angle and disposed at a predetermined interval in a depth direction, in a screen of the two-dimensional video display device, a plurality of virtual image generating regions that generate virtual images by the mirrors in a position of the mirror and virtual image non-generating regions that do not generate a virtual image between the virtual image generating regions are formed, and an image displayed in the virtual image generating region is reflected by a corresponding mirror to be displayed as a three-dimensional video at an observer side.

"Further, a similar three-dimensional video display device is also disclosed in Patent Document 2. Most of all, in Patent Document 2, it is disclosed that when information is displayed in each display region of the display screen which is divided into (N+1) regions, an enlargement/reduction controller 105 controls the enlargement or reduction of a display size at which the information is displayed (size of the display region)."

In addition to obtaining background information on this patent application, VerticalNews editors also obtained the inventor's summary information for this patent application: "Problems to be Solved by the Invention

"In the three-dimensional video display device, if a virtual image generating region of a screen of a two-dimensional video display device does not appropriately correspond to a position of a mirror, a desired three-dimensional video may not be displayed. In other words, if the virtual image generating region does not exactly correspond to the position of the mirror, the video may be deviated to an upper or lower side from a predetermined position or a video of virtual image generating regions other than the desired virtual image generating region may be displayed.

"The image displayed in the three-dimensional video display device, as illustrated in FIG. 4, is created so as to be fit with a screen having a three-dimensional video format 90. In the three-dimensional video format 90, a plurality of virtual image generating regions 91 and a plurality of virtual image non-generating regions 92 are alternately formed and videos 94a to 94c are generated in the virtual image generating region 91. The videos 94a to 94c generated in the virtual image generating region 91 having the three-dimensional video format 90 are reflected from a plurality of mirrors so as to be displayed as a predetermined three-dimensional video.

"However, due to various reasons, sometimes, the positional relationship between the mirrors and the screen of the two-dimensional video display device is not appropriate. For example, if a mirror device is mounted in a smart phone as a two-dimensional display device while mounting a case called as a jacket, the positional relationship may be deviated as much as the thickness of the jacket. In this case, the virtual image generating region 91 in which the video is displayed may be shifted forward or backward from a normal position, so that the three-dimensional video may be displayed to be deviated from a normal position.

"Further, sizes of screens of smart phones are varied depending on the models of the smart phones. Therefore, even though the image is created according to the three-dimensional video format 90, the position of the mirrors of the mirror device and the virtual image generating region may not be matched. In this case, the image needs to be enlarged or reduced to be displayed so that the intervals Eb and Ec between the virtual image generating regions are matched with the intervals Db and Dc between the mirrors.

"Since there are various types of jackets or two-dimensional video display devices, it is actually difficult to automatically adjust the screen including the virtual image generating regions so as to correspond to the various types of jackets or two-dimensional video display devices. For example, a method is considered that automatically reads out the size information at the time of displaying the three-dimensional video, to adjust the screen according to size information of a screen while storing the size information of the screen in a memory of the two-dimensional video display device. However, information on whether a jacket is mounted on the two-dimensional video display device or a thickness of the jacket is state information separate from the two-dimensional video display device, and it is difficult to store information including the state information in the two-dimensional video display device as the size information. Accordingly, the screen may be adjusted by the manipulation of an observer at the time of displaying the three-dimensional video while the observer watches the three-dimensional video.

"In Patent Document 2, it is disclosed that an enlargement/reduction controller 105 controls the enlargement and reduction of a display size at which the information is displayed. However, it is not suggested how the display irregularity in the depth direction of the screen is adjusted. Further, it is not suggested that the screen deviation is adjusted by the manipulation of the observer while the observer is watching the screen.

"The present invention is directed to provide a three-dimensional display device that is capable of adjusting a display irregularity of a screen of a video display device that displays a three-dimensional video by the manipulation of an observer, a control method thereof, and a screen adjusting program.

"More specifically, the present invention is directed to provide a three-dimensional display device that is capable of adjusting a screen by moving in a depth direction or enlarging or reducing a screen to be displayed in the video display device by the manipulation of an observer and displaying a video displayed in the adjusted screen as a three-dimensional video through a mirror, a control method thereof, and a screen adjusting program.

"Means for Solving the Problems

"A three-dimensional video display device according to the present invention preferably includes a mirror device in which a plurality of mirrors are disposed to be parallel to each other and reflects a video displayed on a display screen of the video display device from the plurality of mirrors to display the video as a three-dimensional video. The video display device includes a storage unit that stores a program and a video; a processor that executes the program; a display unit having a display screen that displays a screen with a predetermined format having a plurality of regions corresponding to the plurality of mirrors in order to display the three-dimensional video; and an input unit that is manipulated by a user. The input unit includes a shift input unit that instructs to move the screen with the format to be displayed on the display screen in a forward or backward direction of the display screen as seen from the user. The processor executes the program to function as: a unit that generates an adjusting screen with a predetermined format including display of a specific indication mark which is used to check display irregularity of the screen in a relationship between the mirror and the region of the screen with the format; a screen shift control unit that controls the adjusting screen including the indication mark to be moved forward or backward by a predetermined amount to be displayed on the display screen in accordance with an instruction from the shift input unit; and a unit that disposes a video for displaying the three-dimensional video in the plurality of regions so as to generate a screen with the format in a state where the screen is moved by a predetermined amount by the control of the screen shift control unit. The video of the screen with the format generated by the generating unit is displayed on the display screen of the video display device and the displayed video is reflected from the plurality of mirrors to be displayed as a three-dimensional video.

"In a preferred example, the input unit includes an enlargement/reduction input unit that instructs the screen with the format which is displayed on the display screen to be enlarged or reduced. The processor executes the program to function as: a unit that generates an adjusting screen with the format including display of a specific indication mark which is used for correction to enlarge or reduce the screen in a relationship between the mirror and the region of the screen with the format; a screen enlargement/reduction control unit that controls the adjusting screen including the indication mark to be enlarged or reduced by a predetermined amount to be displayed on the display screen in accordance with an instruction from the enlargement/reduction input unit; and a unit that disposes a video for displaying the three-dimensional video in the plurality of regions so as to generate a screen having the format in a state where the screen is enlarged or reduced by a predetermined amount by the control of the screen enlargement/reduction control unit. The video of the screen with the format generated by the generating unit is displayed on the display screen of the video display device and the displayed video is reflected from the plurality of mirrors to be displayed as a three-dimensional video.

"Also preferably, the input unit is a touch type input unit, and the processor generates a screen in which an input button that configures the shift input unit or the enlargement/reduction input unit may be disposed in the adjusting screen.

"Also preferably, the input unit may be a touch type input unit and the processor may generate a screen in which a mode selecting button that selects a shift mode by the screen shift control unit and an enlargement/reduction mode by the screen enlargement/reduction control unit is disposed in the adjusting screen.

"Also preferably, a border of the plurality of regions that configure the format screen is set based on positions of the plurality of mirrors corresponding to the display screen and the indication mark is formed to be line symmetric or asymmetric to a line that defines the border.

"Also preferably, the processor generates the adjusting screen in which the shift input button, the enlargement/reduction input button, and the mode selecting button are disposed in a region which is the closest to the user among the plurality of regions that configures the format screen.

"A control method of a three-dimensional video display according to the present invention preferably disposes a mirror device in which a plurality of mirrors are disposed to be parallel to each other in a video display device which includes a display unit having a display screen that displays a screen with a predetermined format having a plurality of regions corresponding to the plurality of mirrors in order to display a three-dimensional video and an input unit that is manipulated by a user, and reflects a video displayed on a display screen of the video display device from the plurality of mirrors to display the video as a three-dimensional video. The method includes: a step of generating an adjusting screen with the format including display of a specific indication mark which is used to check display irregularity of the screen in a relationship between the mirror and the region of the screen with the format; a shift input step of instructing the screen with the format which is displayed on the display screen to be moved in a forward or backward direction of the display screen as seen from the user by the manipulation of the input unit; a screen shift control step of controlling the adjusting screen including the indication mark to be moved forward or backward by a predetermined amount to be displayed on the display screen in accordance with an instruction from the shift input step; a step of generating a screen with the format in a state where the screen is moved by a predetermined amount by the screen shift control step by disposing a video for displaying the three-dimensional video in the plurality of regions; and a step of displaying the video of the screen with the format generated by the generating step on the display screen of the video display device and reflecting the displayed video from the plurality of mirrors to be displayed as a three-dimensional video.

"A screen adjusting program is executed by a processor in a three-dimensional video display device according to the present invention that preferably disposes a mirror device in which a plurality of mirrors are disposed to be parallel to each other in a video display device which includes a storage unit that stores a program and a video, a processor that executes the program, a display unit having a display screen that displays a screen with a predetermined format having a plurality of regions corresponding to the plurality of mirrors in order to display a three-dimensional video and an input unit that is manipulated by a user, and reflects a video displayed on a display screen of the video display device from the plurality of mirrors to display the video as a three-dimensional video. The program executes operations including: a step of generating an adjusting screen with the format including display of a specific indication mark which is used to check display irregularity of the screen in a relationship between the mirror and the region of the screen with the format; a shift input step of instructing the screen with the format which is displayed on the display screen to be moved in a forward or backward direction of the display screen as seen from the user by the manipulation of the input unit; a screen shift control step of controlling the adjusting screen including the indication mark to be moved forward or backward by a predetermined amount to be displayed on the display screen in accordance with an instruction from the shift input step; and a step of generating a screen with the format in a state where the screen is moved by a predetermined amount by the screen shift control step by disposing a video for displaying the three-dimensional video in the plurality of regions.

"Effect of the Invention

"According to the present invention, it is possible to adjust a display irregularity of a screen of a video display device that displays a video. In other words, it is possible to adjust a screen by moving a screen of the video display device in a depth direction or enlarging or reducing the screen and to display the image displayed using the adjusted screen as a three-dimensional video through a mirror device. By doing this, a mirror device is disposed in the video display device having screens with different lengths in a depth direction at least as seen from the observer side to display a three-dimensional video, which may expand a range of a video display device which may be applied to the three-dimensional display device.

BRIEF DESCRIPTION OF THE DRAWINGS

"FIG. 1 A perspective view illustrating a three-dimensional video display device according to an embodiment.

"FIG. 2 A block diagram illustrating a functional configuration of a two-dimensional video display device according to an embodiment.

"FIG. 3 A flow chart illustrating an executing operation of a screen adjusting program according to an embodiment.

"FIG. 4 A view illustrating a three-dimensional video format in a three-dimensional video display device.

"FIG. 5 A side view of a three-dimensional video display device according to an embodiment and a plan view of a video displayed in a three-dimensional video format of a two-dimensional video display device.

"FIG. 6 A view illustrating an example of a display irregularity adjusting screen according to an embodiment.

"FIG. 7 A view illustrating an example of a reference mark of a display irregularity adjusting screen according to an embodiment.

"FIG. 8 A perspective view of a three-dimensional video of an adjusting screen which does not need to adjust a screen according to an embodiment.

"FIG. 9 A perspective view of a three-dimensional video which needs to shift the screen according to an embodiment.

"FIG. 10 A perspective view of a three-dimensional video which needs to shift the screen according to an embodiment.

"FIG. 11 A view illustrating an example of an adjusting screen for shifting a screen according to an embodiment.

"FIG. 12 A perspective view of a three-dimensional video which needs to enlarge or reduce a screen according to an embodiment.

"FIG. 13 A view illustrating an example of an adjusting screen for enlargement or reduction according to an embodiment.

"FIG. 14 A perspective view of a three-dimensional video display device according to an embodiment.

"FIG. 15 A cross-sectional view of a three-dimensional video display device according to an embodiment."

For more information, see this patent application: Mase, Jitsuro. Three-Dimensional Video Display Device, Control Method Thereof, and Screen Adjusting Program. Filed September 14, 2012 and posted August 7, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=4714&p=95&f=G&l=50&d=PG01&S1=20140731.PD.&OS=PD/20140731&RS=PD/20140731

Keywords for this news article include: Pulk Pte. Ltd.

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Source: Politics & Government Week


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