Display Substrate, Method for Manufacturing Display Substrate and Display Device

Patent metadata

Field	Value
Publication number	US-2016341998-A1
Application number	US-201615136453-A
Country	US
Kind code	A1
Filing date	Apr 22, 2016
Priority date	May 21, 2015
Publication date	Nov 24, 2016
Grant date	—

Abstract

The present invention relates to the technical field of display, and particularly, to a display substrate, a method for manufacturing a display substrate and a display device. The display substrate includes a CF substrate and a TFT substrate disposed opposite to each other, and a liquid crystal layer disposed between the CF substrate and the TFT substrate, a first orientation layer disposed on the side of the CF substrate towards the liquid crystal layer, a second orientation layer disposed on the side of the TFT substrate towards the liquid crystal layer; a viewing angle compensation layer is disposed between the CF substrate and the first orientation layer, and between the TFT substrate and the second orientation layer. The display substrate is good at anchoring the orientation of liquid crystal, so that it can obtain better display quality of wide viewing angle.

First claim

1 . A display substrate, including a CF substrate and a TFT substrate disposed opposite to each other, and a liquid crystal layer disposed between said CF substrate and said TFT substrate, a first orientation layer disposed on the side of said CF substrate towards said liquid crystal layer, a second orientation layer disposed on the side of said TFT substrate towards said liquid crystal layer, characterized in that, a viewing angle compensation layer is disposed between said CF substrate and said first orientation layer, and between said TFT substrate and said second orientation layer.

2 . The display substrate according to claim 1 , characterized in that, said viewing angle compensation layer is formed by a Reactive Mesogens material.

3 . The display substrate according to claim 1 , characterized in that, said viewing angle compensation layer has a thickness of 1 μm to 3 μm.

4 . The display substrate according to claim 1 , characterized in that, a polarizer is disposed on the side of said CF substrate away from said liquid crystal layer, and on the side of said TFT substrate away from said liquid crystal layer.

5 . The display substrate according to claim 2 , characterized in that, a polarizer is disposed on the side of said CF substrate away from said liquid crystal layer, and on the side of said TFT substrate away from said liquid crystal layer.

6 . The display substrate according to claim 3 , characterized in that, a polarizer is disposed on the side of said CF substrate away from said liquid crystal layer, and on the side of said TFT substrate away from said liquid crystal layer.

7 . A method of manufacturing a display substrate including a CF substrate, a TFT substrate and a liquid crystal layer disposed between said CF substrate and said TFT substrate, a first orientation layer disposed on the side of said CF substrate towards said liquid crystal layer, a second orientation layer disposed on the side of said TFT substrate towards said liquid crystal layer, characterized in that, said manufacturing method includes a step of forming a viewing angle compensation layer between said CF substrate and said first orientation layer, and between said TFT substrate and said second orientation layer.

8 . The method of manufacturing a display substrate according to claim 7 , characterized in that, said viewing angle compensation layer is formed by a Reactive Mesogens material.

9 . The method of manufacturing a display substrate according to claim 7 , characterized in that, the formation of said viewing angle compensation layer includes:
forming the Reactive Mesogens material respectively on one side of the CF substrate and one side of the TFT substrate by a coating method; heating and pre-curing the Reactive Mesogens material; orienting the Reactive Mesogens material by a UV light alignment process.

10 . The method of manufacturing a display substrate according to claim 8 , characterized in that, heating and pre-curing the Reactive Mesogens material is carried out in a thermostatic heating mode, and the heating temperature ranges from 115° C. to 125° C.; the wavelength of UV light ranges from 320 nm to 420 nm.

11 . A display device, characterized in that, it includes the display substrate according to claim 1 .

12 . A display device, characterized in that, it includes the display substrate according to claim 2 .

13 . A display device, characterized in that, it includes the display substrate according to claim 3 .

14 . A display device, characterized in that, it includes the display substrate according to claim 4 .

15 . A display device, characterized in that, it includes the display substrate according to claim 5 ,

16 . A display device, characterized in that, it includes the display substrate according to claim 6 .

17 . A display device, characterized in that, it includes the display substrate according to claim 7 .

18 . The display device according to claim 11 , characterized in that, said display device includes a TN type display device, an ECB type display device and an OCB type display device.

Assignees

• Boe Technology Group Co Ltd
• Chengdu Boe Optoelect Tech Co

Inventors

• Zuo Xiongcan
• Zhang Junrui

Classifications

• G02F1/1337

  Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers · CPC title

• G02F1/1396 Primary

  the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell (G02F1/141 takes precedence) · CPC title

• G02F1/133528

  Polarisers · CPC title

• G02F1/1333

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title

• G02F2413/105

  with varying inclination in thickness direction, e.g. hybrid oriented discotic LC · CPC title