Display panel and 3D display device

Patent metadata

Field	Value
Publication number	US-9423625-B2
Application number	US-201314348409-A
Country	US
Kind code	B2
Filing date	Jun 20, 2013
Priority date	Mar 29, 2013
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

A display panel including a first substrate, a first polarizer sheet arranged on the first substrate, a second substrate, a second polarizer sheet arranged on the second substrate, a liquid crystal layer located between the first substrate and the second substrate, and further comprises a pixel electrode, a common electrode, a first alignment layer and a gate line formed on the first substrate, at least one of the pixel electrode and the common electrode is a comb-like electrode, a transmission axis of the first polarizer sheet is parallel with the line along which an alignment direction of the first alignment layer is located, and the transmission axis of the first polarizer sheet is perpendicular to a transmission axis of the second polarizer sheet, and the line along which the alignment direction of the first alignment layer is located is at a predetermined angle greater than 0° and less than 90° with the respect to the gate line. Such a display panel can obtain better angular characteristic of 3D visual sense.

First claim

The invention claimed is:

1. A display panel, comprising a first substrate, a first polarizer sheet arranged on the first substrate, a second substrate, a second polarizer sheet arranged on the second substrate, a liquid crystal layer located between the first substrate and the second substrate, and a pixel electrode, a common electrode, a first alignment layer and a gate line formed on the first substrate,
wherein at least one of the pixel electrode and the common electrode is a comb-like electrode, a transmission axis of the first polarizer sheet is parallel with a line along which an alignment direction of the first alignment layer is located, and the transmission axis of the first polarizer sheet is perpendicular to a transmission axis of the second polarizer sheet,
the line along which the alignment direction of the first alignment layer is located is at a predetermined angle, greater than 0° and less than 90°, with respect to the gate line, and
wherein, the comb-like electrode is parallel with the along which the alignment direction of the first alignment layer is located, or is at an angle of 7° to 11° with respect to the line along which the alignment direction of the first alignment layer is located.

2. The display panel according to claim 1 , wherein the predetermined angle is between 40° to 50°.

3. The display panel according to claim 2 , wherein the predetermined angle is 45°.

4. The display panel according to claim 1 , wherein the pixel electrode is the comb-like electrode, the common electrode is a plate electrode, the comb-like pixel electrode is closer to the liquid crystal layer than the common electrode.

5. The display panel according to claim 1 , wherein the common electrode is the comb-like electrode, the pixel electrode is a plate electrode, the comb-like common electrode is closer to the liquid crystal layer than the pixel electrode.

6. The display panel according to claim 1 , wherein both the pixel electrode and the common electrode are comb-like electrodes.

7. The display panel according to claim 1 , further comprising a second alignment layer formed on the second substrate, the alignment direction of the first alignment layer being opposite to an alignment direction of the second alignment layer.

8. A 3D display device comprising a twisted nematic 3D grating and the display panel according to claim 1 , wherein the twisted nematic 3D grating is located at a light exiting side of the display panel.

9. The 3D display device according to claim 8 , wherein a transmission axis of the second polarizer sheet at the light exiting side of the display panel is parallel with the transmission axis of the polarizer sheet at a light entering side of the twisted nematic 3D grating.

10. The display panel according to claim 2 , wherein the pixel electrode is the comb-like electrode, the common, electrode is a plate electrode, the comb-like pixel electrode is closer to the liquid crystal layer than the common electrode.

11. The display panel according to claim 2 , wherein the common electrode is the comb-like electrode, the pixel electrode is a plate electrode, the comb-like common electrode is closer to the liquid crystal layer than the pixel electrode.

12. The display panel according to claim 2 , wherein both the pixel electrode and the common electrode are comb-like electrodes.

13. The display panel according to claim 4 , further comprising a second alignment layer formed on the second substrate, the alignment direction of the first alignment layer being opposite to an alignment direction of the second alignment layer.

14. The display panel according to claim 5 , further comprising a second alignment layer formed on the second substrate, the alignment direction of the first alignment layer being opposite to an alignment direction of the second alignment layer.

15. The display panel according to claim 6 , further comprising a second alignment layer formed on the second substrate, the alignment direction of the first alignment layer being opposite to an alignment direction of the second alignment layer.

Assignees

• Beijing Boe Display Tech Co
• Boe Technology Group Co Ltd

Inventors

• Dong Tiansong
• Zhan Hongming
• Liu Jiaan
• Joo Jaeyoung
• Zheng Yinghua

Classifications

• G02B30/25

  using polarisation techniques · CPC title

• G02F1/133711

  by organic films, e.g. polymeric films · CPC title

• G02F1/134309

  characterised by their geometrical arrangement · CPC title

• G02F1/133528

  Polarisers · CPC title

• G02F1/133784

  by rubbing · CPC title