Rubbing alignment equipment

Patent metadata

Field	Value
Publication number	US-10139682-B2
Application number	US-201615098496-A
Country	US
Kind code	B2
Filing date	Apr 14, 2016
Priority date	May 7, 2015
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

The invention provides a rubbing alignment equipment, which belongs to the field of rubbing alignment technology and can solve the problem of badness of an alignment film during rubbing alignment due to the badness of the existing rubbing cloth. The rubbing alignment equipment of the invention comprises a rubbing roller, which comprises a roll shaft and rubbing cloth wound on the outer surface of the roll shaft, the rubbing cloth is doped with quantum dots, the rubbing alignment equipment further comprises an excitation light source, which can excite the quantum dots to emit light to detect whether the surface of the rubbing cloth has badness or not. The rubbing alignment equipment can well detect whether the rubbing cloth has badness or not.

First claim

The invention claimed is:

1. Rubbing alignment equipment, comprising a rubbing roller, which comprises a roll shaft and rubbing cloth wound on the outer surface of the roll shaft, wherein the rubbing cloth is doped with quantum dots, the rubbing alignment equipment further comprises an excitation light source, which can excite the quantum dots to emit light to detect whether the surface of the rubbing cloth has badness or not.

2. The rubbing alignment equipment according to claim 1 , wherein the quantum dots are uniformly distributed in the rubbing cloth.

3. The rubbing alignment equipment according to claim 1 , wherein the quantum dots are made of any one of materials selected from cadmium sulfide, cadmium selenide, cadmium telluride and zinc selenide.

4. The rubbing alignment equipment according to claim 1 , wherein the particle diameter of the quantum dots is less than 10 nm.

5. The rubbing alignment equipment according to claim 1 , wherein the excitation light source is an ultraviolet light source.

6. The rubbing alignment equipment according to claim 1 , wherein the rubbing alignment equipment further comprises a winding device, which is used for winding the rubbing cloth onto the roll shaft.

7. The rubbing alignment equipment according to claim 6 , wherein the excitation light source is disposed on the winding device, and is used for exciting the quantum dots to emit light to detect whether the surface of the rubbing cloth has badness or not after the winding device winds the rubbing cloth onto the roll shaft.

8. The rubbing alignment equipment according to claim 1 , wherein the rubbing alignment equipment further comprises a rubbing platform, which is used for bearing a substrate for rubbing alignment.

9. The rubbing alignment equipment according to claim 8 , wherein the excitation light source is disposed on a cross beam on the rubbing platform corresponding to the rubbing roller, and is used for exciting the quantum dots to emit light to detect whether the surface of the rubbing cloth has badness or not when the rubbing roller performs rubbing alignment on the substrate on the rubbing platform.

10. The rubbing alignment equipment according to claim 1 , wherein the rubbing cloth and the roll shaft are fixed to each other by a double-faced adhesive tape.

11. Rubbing cloth, wherein it is doped with quantum dots, which are used for emitting light under the excitation of an excitation light source to detect whether the surface of the rubbing cloth has badness or not.

12. The rubbing cloth according to claim 11 , wherein the quantum dots are uniformly distributed in the rubbing cloth.

13. The rubbing cloth according to claim 11 , wherein the quantum dots are made of any one of materials selected from cadmium sulfide, cadmium selenide, cadmium telluride and zinc selenide.

14. The rubbing cloth according to claim 11 , wherein the particle diameter of the quantum dots is less than 10 nm.

Assignees

• Boe Technology Group Co Ltd
• Hefei Xinsheng Optoelectronics Technology Co Ltd
• Hefei Xinsheng Optoelectronics Technology Co Ltd

Inventors

• Zhan Chengyong
• Wang Kai
• Tan Cong
• Zhang Bo
• Jiang Liangliang

Classifications

• D03D15/00

  Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used · CPC title

• D10B2403/01

  Surface features · CPC title

• G02F1/133784 Primary

  by rubbing · CPC title

• G02F1/1303

  Apparatus specially adapted to the manufacture of LCDs · CPC title

• D03D1/00

  Woven fabrics designed to make specified articles · CPC title