Display panel, display device using the same, and method for manufacturing display panel

Patent metadata

Field	Value
Publication number	US-9372368-B2
Application number	US-201314360339-A
Country	US
Kind code	B2
Filing date	Nov 18, 2013
Priority date	May 24, 2013
Publication date	Jun 21, 2016
Grant date	Jun 21, 2016

Abstract

A display panel, a display device using the same, and a method for manufacturing a display panel are provided. The display panel includes a first substrate ( 25 ) and a second substrate ( 26 ) disposed oppositely, and spacers located between the first substrate ( 25 ) and the second substrate ( 26 ). Each of the spacers includes a first part ( 21 ) and a second part ( 22 ) at locations corresponding to each other, the first part ( 21 ) is located on the first substrate ( 25 ), the second part ( 22 ) is located on the second substrate ( 26 ), both the first part ( 21 ) and the second part ( 22 ) are magnetic bodies, and top ends of the first part ( 21 ) and the second part ( 22 ) at the locations corresponding to each other contact with each other and have opposite magnetic poles.

First claim

What is claimed is:

1. A display panel, comprising a first substrate and a second substrate disposed oppositely, and spacers located between the first substrate and the second substrate, wherein,
each of the spacers comprises a first part and a second part at locations corresponding to each other, the first part is located on the first substrate, the second part is located on the second substrate, both the first part and the second part are magnetic bodies, and top ends of the first part and the second part at the locations corresponding to each other contact with each other and have opposite magnetic poles.

2. The display panel according to claim 1 , wherein, first magnetic particles are distributed in the first part, and second magnetic particles are distributed in the second part.

3. The display panel according to claim 2 , wherein, base material of both the first part and the second part is a resin material, the first magnetic particles and the second magnetic particles are distributed in the resin material, respectively, to form the magnetic bodies.

4. The display panel according to claim 2 , wherein, the first magnetic particles and the second magnetic particles are permanent magnet material.

5. The display panel according to claim 4 , wherein, the first magnetic particles and the second magnetic particles are γ—Fe2O3.

6. The display panel according to claim 2 , wherein, the first magnetic particles and the second magnetic particles have grain diameters of 50-100 nm, respectively.

7. The display panel according to claim 1 , wherein, one end surface of the first part is fixed to the first substrate, one end surface of the second part is fixed to the second substrate, the other end surface of the first part facing away from the one end surface fixed to the first substrate and the other end surface of the second part facing away from the one end surface fixed to the second substrate contact with each other.

8. The display panel according to claim 7 , wherein, the end surfaces contacting with each other of the first part and the second part are parallel to planes of the first substrate and the second substrate.

9. The display panel according to claim 1 , wherein, the first part and the second part have a shape of a frustum.

10. A display device, comprising the display panel according to claim 1 .

11. A method for manufacturing a display panel, comprising:
preparing a first substrate and a second substrate;
forming a mixture for spacer with magnetic particles contained therein;
forming a first part of the spacer on the first substrate by using the mixture;
forming a second part of the spacer on the second substrate by using the mixture;
cell-assembling the first substrate and the second substrate, such that surfaces of the first substrate and the second substrate having the spacer face each other, and top ends of the first part and the second part at corresponding locations contact with each other, the top ends of the first part and the second part have opposite magnetic poles.

12. The method for manufacturing the display panel according to claim 11 , wherein, the step for forming the mixture for spacer comprises:
preparing a resin material, magnetic particles and an organic solvent;
dissolving the resin material in the organic solvent, dispersing uniformly the magnetic particle in the organic solvent dissolved with the resin material by a stirring manner, to form the mixture for spacer.

13. The method for manufacturing the display panel according to claim 11 , wherein, the step for forming the first part of the spacer on the first substrate comprising:
by a coating or transfer printing process, applying the mixture for the spacers on a surface of the first substrate to form a first spacer layer;
solidifying the first substrate formed with the first spacer layer, and applying a first magnetic field with a field direction from the first substrate to the first spacer layer, to make the magnetic particles in the first spacer layer generate uniform first magnetic distribution while solidifying the first spacer layer;
by processing the first spacer layer that has been solidified by a lithographic process, obtaining patterned first part located on the first substrate.

14. The method for manufacturing the display panel according to claim 11 , wherein, the step for forming the second part of the spacer on the second substrate comprises:
by a coating or transfer printing process, applying the mixture for spacers on a surface of the second substrate, to form a second spacer layer;
solidifying the second substrate formed with the second spacer layer, and applying a second magnetic field with a field direction from the second spacer layer to the second substrate, to make the magnetic particles in the second spacer layer generate uniform second magnetic distribution while solidifying the second spacer layer;
by processing the second spacer player that has been solidified by a lithographic process, obtaining patterned second part located on the second substrate.

15. The method for manufacturing the display panel according to claim 13 , wherein, solidifying temperature in the solidifying process is not higher than Curie temperature of the magnetic particles.

16. The display panel according to claim 2 , wherein, the first magnetic particles and the second magnetic particles are permanent magnet material.

17. The display panel according to claim 2 , wherein, the first magnetic particles and the second magnetic particles have grain diameters of 50-100 nm, respectively.

18. The display panel according to claim 2 , wherein, one end surface of the first part is fixed to the first substrate, one end surface of the second part is fixed to the second substrate, the other end surface of the first part facing away from the one end surface fixed to the first substrate and the other end surface of the second part facing away from the one end surface fixed to the second substrate contact with each other.

19. The display panel according to claim 3 , wherein, one end surface of the first part is fixed to the first substrate, one end surface of the second part is fixed to the second substrate, the other end surface of the first part facing away from the one end surface fixed to the first substrate and the other end surface of the second part facing away from the one end surface fixed to the second substrate contact with each other.

20. The display panel according to claim 4 , wherein, one end surface of the first part is fixed to the first substrate, one end surface of the second part is fixed to the second substrate, the other end surface of the first part facing away from the one end surface fixed to the first substrate and the other end surface of the second part facing away from the one end surface fixed to the second substrate contact with each other.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Zhou Xiaodong

Classifications

• G02F1/13394 Primary

  spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence) · CPC title

• G02F2001/13398

  Physics · mapped topic

• G02F1/13398

  Spacer materials; Spacer properties · CPC title