Display device and method of driving the same

Patent metadata

Field	Value
Publication number	US-10021375-B2
Application number	US-201414581572-A
Country	US
Kind code	B2
Filing date	Dec 23, 2014
Priority date	Dec 24, 2013
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

A display device producing multi-views comprising: a display panel including a plurality of pixels in a matrix, wherein pixels corresponding to the multi-views, respectively, constitute a pixel group in a slanted direction with respect to a vertical direction, and wherein the multi-views are three or more views; a multi-view point producing panel including a barrier region or a lenticular lens array in the slanted direction having a pitch corresponding to the pixel group; and a driving circuit configured to reduce a grey level of an image data signal of at least one pixel of the plurality of pixels, which is at a side boundary of the pixel group causing a three-dimensional (3D) crosstalk (C/T), and output an image data signal having a reduced grey level to the display panel.

First claim

What is claimed is:

1. A display device producing multi-views comprising:
a display panel including a plurality of pixels in a matrix, wherein the plurality of pixels corresponding to the multi-views, respectively, constitute a pixel group in a slanted direction with respect to a vertical direction, and wherein the multi-views are at least three views;
a multi-view point producing panel including a barrier region or a lenticular lens array in the slanted direction having a barrier pitch corresponding to the pixel group; and
a driving circuit configured to reduce a grey level of an image data signal of at least one pixel of the plurality of pixels, which is at a side boundary of the pixel group causing a three-dimensional (3D) crosstalk (C/T) and has a ratio of an area outside a boundary of the barrier pitch to a total area of the at least one pixel that is greater than or equal to 40%, and output an image data signal having a reduced grey level to the display panel.

2. The device according to claim 1 , wherein the grey level of the image data signal is reduced by 40% to 60%.

3. The device according to claim 1 , wherein the display panel is one of a liquid crystal panel, an organic light-emitting diode panel, and a plasma display panel.

4. The device according to claim 1 , wherein the multi-view point producing panel is a liquid crystal panel.

5. The device according to claim 1 , further comprising a gap substrate between the multi-view point producing panel and the display panel to maintain a distance between the multi-view point producing panel and the display panel.

6. The device according to claim 1 , wherein each pixel has a rectangular shape that has two sides along a vertical direction and other two sides along a horizontal direction.

7. A method of driving a display device, wherein the device display device includes a display panel including a plurality of pixels in a matrix, wherein pixels corresponding to multi-views, respectively, constitute a pixel group in a slanted direction with respect to a vertical direction, and a multi-view point producing panel including a barrier region or a lenticular lens array in the slanted direction having a barrier pitch corresponding to the pixel group, the multi-views being at least three views, the method comprising:
reducing a grey level of an image data signal corresponding to at least one pixel of the plurality of pixels, which is at a side boundary of the pixel group causing a 3D C/T and has a ratio of an area outside a boundary of the barrier pitch to a total area of the at least one pixel that is greater than or equal to 40%, by a driving circuit; and
outputting an image data signal having a reduced grey level from the driving circuit to the display panel.

8. The method according to claim 7 , wherein the grey level of the image data signal is reduced by 40% to 60%.

9. The method according to claim 7 , wherein the display panel is one of a liquid crystal panel, an organic light-emitting diode panel, and a plasma display panel.

10. A display device comprising:
a display panel including a plurality of pixels, wherein the plurality of pixels include a slanted pixel group configured in a slanted direction with respect to a vertical direction;
a multi-view point generating panel including a barrier region or lenticular lens array configured in the slanted direction having a barrier pitch corresponding to the slanted pixel group; and
a driving circuit configured to reduce a grey level of an image data signal of at least one pixel at a side boundary of the slanted pixel group which could cause crosstalk with respect to displaying three-dimensional images and has a ratio of an area outside a boundary of the barrier pitch to a total area of the at least one pixel that is greater than or equal to 40%.

11. The device according to claim 10 , wherein the grey level of the image data signal is reduced by 40% to 60% compared to the image data signal without grey level reduction.

12. The device according to claim 10 , wherein the display panel is one of a liquid crystal panel, an organic light-emitting diode panel, and a plasma display panel.

13. The device of claim 10 , wherein the slanted pixel group is configured in a repetitive manner for a pixel arrangement across the entire display panel.

14. The device of claim 13 , wherein the display panel, the multi-view point generating panel, and the driving circuit are configured to support non-glasses type viewing experiences.

15. The device of claim 14 , wherein the display panel, the multi-view point generating panel, and the driving circuit are implemented with respect to automotive applications.

16. The device of claim 15 , wherein the display panel, the multi-view point generating panel, and the driving circuit are implemented to allow side-by-side seated occupants in a vehicle to respectively see different image contents.

17. The device of claim 16 , wherein the display panel, the multi-view point generating panel, and the driving circuit are implemented with respect to organic light emitting diode (OLED) technology.

18. The device of claim 16 , wherein the display panel, the multi-view point generating panel, and the driving circuit are implemented with respect to liquid crystal display (LCD) technology.

Assignees

• Lg Display Co Ltd

Inventors

• Kim Ho-Jae
• Park Sang-Hun
• Kim Kyung-Ki

Classifications

• G09G3/20 Primary

  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} · CPC title

• H04N13/351

  for displaying simultaneously · CPC title

• H04N13/317

  using slanted parallax optics · CPC title

• H04N13/356

  having separate monoscopic and stereoscopic modes · CPC title

• H04N13/31 Primary

  using parallax barriers · CPC title