Stereoscopic display device

Patent metadata

Field	Value
Publication number	US-2016286206-A1
Application number	US-201415031304-A
Country	US
Kind code	A1
Filing date	Aug 28, 2014
Priority date	Oct 25, 2013
Publication date	Sep 29, 2016
Grant date	—

Abstract

Obtained is a configuration of a stereoscopic display device that allows a viewer to easily correct settings for stereoscopic display. A stereoscopic display device ( 1 ) includes: a display panel ( 10 ) for displaying an image; a switch liquid crystal panel ( 20 ) that is arranged so as to be stacked on the display panel ( 10 ); a position sensor for acquiring position information of a viewer; and a control unit for causing the switch liquid crystal panel ( 20 ) to display a parallax barrier in which transmitting regions and non-transmitting regions are formed in periodic fashion in a predetermined alignment direction. The control unit has, as operation modes, at least a tracking mode in which, according to the position information, the parallax barrier is moved in the alignment direction and is displayed on the switch liquid crystal panel ( 20 ), and a calibration mode for calibration of a reference position of the position information. The control unit sets a width of the transmitting region of the parallax barrier in the tracking mode, and a width of the transmitting region of the parallax barrier in the calibration mode, so that the widths are different from each other.

First claim

1 . A stereoscopic display device comprising:
a display panel for displaying an image; a switch liquid crystal panel that is arranged so as to be stacked on the display panel; a position sensor for acquiring position information of a viewer; and a control unit configured to cause the switch liquid crystal panel to display a parallax barrier in which transmitting regions and non-transmitting regions are formed in periodic fashion in a predetermined alignment direction, wherein the control unit has, as operation modes, at least a tracking mode in which, according to the position information, the parallax barrier is moved in the alignment direction and is displayed on the switch liquid crystal panel, and a calibration mode for calibration of a reference position of the position information, and the control unit sets a width of the transmitting region of the parallax barrier in the tracking mode, and a width of the transmitting region of the parallax barrier in the calibration mode, so that these widths are different from each other.

2 . The stereoscopic display device according to claim 1 , further comprising:
an input device that receives an operation from the viewer, wherein the control unit includes a calibration processing unit that calibrates the reference position of the position information, based on the position information when a specific operation is performed with respect to the input device in the calibration mode.

3 . The stereoscopic display device according to claim 2 ,
wherein the control unit further includes a storage device, and the calibration processing unit causes the storage device to store the position information when the specific operation is performed with respect to the input device in the calibration mode, and calibrates the reference position based on two or more pieces of position information including the position information stored by the storage device.

4 . The stereoscopic display device according to claim 3 ,
wherein the calibration processing unit includes an averaging circuit that averages the two or more pieces of position information including the position information stored by the storage device.

5 . The stereoscopic display device according to claim 1 ,
wherein the control unit sets the width of the transmitting region of the parallax barrier in the calibration mode to a width greater than the width of the transmitting region of the parallax barrier in the tracking mode.

6 . The stereoscopic display device according to claim 1 ,
wherein the control unit sets the width of the transmitting region of the parallax barrier in the calibration mode to a width smaller than the width of the transmitting region of the parallax barrier in the tracking mode.

7 . The stereoscopic display device according to claim 1 ,
wherein the control unit make the width of the transmitting region and the width of the non-transmitting region equal to each other in the tracking mode.

8 . The stereoscopic display device according to claim 1 ,
wherein the switch liquid crystal panel includes: a liquid crystal layer; a first substrate and a second substrate that face each other with the liquid crystal layer being interposed therebetween; a first electrode group that includes a plurality of electrodes that are arranged in the alignment direction at a predetermined interval on the first substrate; and a second electrode group that includes a plurality of electrodes that are arranged in the alignment direction at a predetermined interval on the second substrate, wherein the first electrode group and the second electrode group are arranged so as to be deviated with respect to each other by half of the predetermined interval in the alignment direction.

9 . The stereoscopic display device according to claim 1 ,
wherein the display panel is a liquid crystal display panel.

Assignees

• Sharp Kk

Inventors

• Yoshino Takuto
• Murao Takehiro
• Fukushima Hiroshi
• Kikuchi Ryoh

Classifications

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• H04N13/31

  using parallax barriers · CPC title

• G02F1/133784

  by rubbing · CPC title

• G02F1/133345

  Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence) · CPC title

• H04N2213/001

  Constructional or mechanical details · CPC title