Display device

Patent metadata

Field	Value
Publication number	US-8988411-B2
Application number	US-201213529137-A
Country	US
Kind code	B2
Filing date	Jun 21, 2012
Priority date	Jul 8, 2011
Publication date	Mar 24, 2015
Grant date	Mar 24, 2015

Abstract

The occurrence of crosstalk in a display device which performs 3D display is suppressed. When 3D display is performed, part of a plurality of pixels perform desired color display and the other part of the plurality of pixels perform black display. Thus, as compared to the case where all of a plurality of pixels perform desired color display, the occurrence of crosstalk can be suppressed. A plurality of pixels which perform desired color display are changed depending on the display state. Therefore, as compared to the case where a plurality of pixels which perform desired color display are fixed when 3D display is performed, the display device can have a longer period until display change in a pixel becomes obvious (a longer lifetime) and variations in display among the plurality of pixels can be reduced.

First claim

What is claimed is:

1. A display device comprising:
a display panel comprising a plurality of pixels, the plurality of pixels comprising a first pixel, a second pixel, and a third pixel; and
a shutter panel in which a parallax barrier is formed by controlling a voltage applied to liquid crystal in response to a signal input to at least a first electrode, a second electrode, and a third electrode which are provided in parallel or substantially parallel to one another,
wherein the third electrode is provided between the first electrode and the second electrode,
wherein the third pixel is provided between the first pixel and the second pixel,
wherein the first electrode is overlapped with the first pixel and the third pixel,
wherein the third electrode is overlapped with the third pixel and the second pixel,
wherein the first pixel and the second pixel perform desired color display and the third pixel performs black display in a first display state,
wherein a light-transmitting signal is input to the second electrode and a light-blocking signal is input to the first electrode and the third electrode in the first display state,
wherein the third pixel performs desired color display and the first pixel and the second pixel perform black display in a second display state, and
wherein the light-transmitting signal is input to the first electrode and the light-blocking signal is input to the second electrode and the third electrode.

2. The display device according to claim 1 , wherein in a third display state in which all of the plurality of pixels perform desired color display, the light-transmitting signal is input to the first electrode, the second electrode, and the third electrode.

3. The display device according to claim 1 , wherein the plurality of pixels perform display by utilizing organic electroluminescence.

4. The display device according to claim 1 ,
wherein the first pixel performs desired color display for a left eye in the first display state,
wherein the third pixel performs black display in the first display state, and
wherein the second pixel performs desired color display for a right eye in the first display state.

5. The display device according to claim 1 ,
wherein the first pixel performs black display in the second display state,
wherein the third pixel performs desired color display for a left eye in the second display state, and
wherein the second pixel performs black display in the second display state.

6. A display device comprising:
a display panel comprising a plurality of pixels, the plurality of pixels comprising a first pixel, a second pixel, and a third pixel; and
a shutter panel in which a parallax barrier is formed by controlling a voltage applied to liquid crystal in response to a signal input to a first electrode and a second electrode which are provided in parallel or substantially parallel to each other,
wherein the shutter panel includes a light-blocking layer provided in parallel or substantially parallel to the first electrode and the second electrode,
wherein the light-blocking layer is provided between the first electrode and the second electrode,
wherein the third pixel is provided between the first pixel and the second pixel,
wherein the first electrode is overlapped with the first pixel and the third pixel,
wherein the light-blocking layer is overlapped with the third pixel and the second pixel,
wherein the first pixel and the second pixel perform desired color display and the third pixel performs black display in a first display state,
wherein a light-transmitting signal is input to the second electrode and a light-blocking signal is input to the first electrode in the first display state,
wherein the third pixel performs desired color display and the first pixel and the second pixel perform black display in a second display state, and
wherein the light-transmitting signal is input to the first electrode and the light-blocking signal is input to the second electrode in the second display state.

7. The display device according to claim 6 , wherein the plurality of pixels perform display by utilizing organic electroluminescence.

8. The display device according to claim 6 ,
wherein the first pixel performs desired color display for a left eye in the first display state,
wherein the third pixel performs black display in the first display state, and
wherein the second pixel performs desired color display for a right eye in the first display state.

9. The display device according to claim 6 ,
wherein the first pixel performs black display in the second display state,
wherein the third pixel performs desired color display for a left eye in the second display state, and
wherein the second pixel performs black display in the second display state.

10. A display device comprising:
a display panel comprising a plurality of pixels provided in matrix, the plurality of pixels comprising a first pixel, a second pixel, a third pixel, and a fourth pixel; and
a shutter panel in which a parallax barrier is formed by controlling a voltage applied to liquid crystal in response to a signal input to at least a first electrode, a second electrode, and a third electrode which are provided in parallel or substantially parallel to one another,
wherein the third electrode is provided between the first electrode and the second electrode,
wherein the third pixel is provided between the first pixel and the second pixel,
wherein the second pixel is provided between the third pixel and the fourth pixel,
wherein the first electrode is overlapped with the first pixel and the third pixel,
wherein the third electrode is overlapped with the third pixel and the second pixel,
wherein the second electrode is overlapped with the second pixel and the fourth pixel,
wherein the first pixel and the second pixel perform desired color display and the third pixel and the fourth pixel perform black display in a first display state,
wherein a light-transmitting signal is input to the second electrode and a light-blocking signal is input to the first electrode and the third electrode in the first display state,
wherein the third pixel and the fourth pixel perform desired color display and the first pixel and the second pixel perform black display in a second display state, and
wherein the light-transmitting signal is input to the first electrode and the light-blocking signal is input to the second electrode and the third electrode in the second display state.

11. The display device according to claim 10 , wherein in a third display state in which all of the plurality of pixels perform desired color display, the light-transmitting signal is input to the first electrode, the second electrode, and the third electrode.

12. The display device according to claim 10 , wherein the plurality of pixels perform display by utilizing organic electroluminescence.

13. The display device according to claim 10 ,
wherein the first pixel performs desired color display for a left eye in the first display state,
wherein the third pixel performs black display in the first display state,
wherein the second pixel performs desired color display for a right eye in the first display state, and
wherein the fourth pixel performs black display in the first display state.

14. The display device according to claim 10 ,
wherein the first pixel performs black display in the second display state,
wherein the third pixel performs desired color display for a left eye in the second display state,
wherein the second pixel performs black display in the second display state, and
wherein the fourth pixel perfor

Assignees

• Miyake Hiroyuki
• Semiconductor Energy Lab

Inventors

• Miyake Hiroyuki

Classifications

• G02F1/13

  based on liquid crystals, e.g. single liquid crystal display cells · CPC title

• H04N13/324

  Colour aspects · CPC title

• H04N13/31 Primary

  using parallax barriers · CPC title

• H04N13/356

  having separate monoscopic and stereoscopic modes · CPC title

• G09G3/003 Primary

  to produce spatial visual effects · CPC title