Display panel and repairing method thereof

Patent metadata

Field	Value
Publication number	US-10326108-B2
Application number	US-201715811657-A
Country	US
Kind code	B2
Filing date	Nov 13, 2017
Priority date	Apr 25, 2017
Publication date	Jun 18, 2019
Grant date	Jun 18, 2019

Abstract

A display panel, includes a base layer and an OLED device layer which is positioned on the base layer. A material of the base layer includes hydrogenated boron nitride nanosheets.

First claim

What is claimed is:

1. A display panel, comprising a base layer and an OLED device layer which is positioned on the base layer, wherein a material for the base layer comprises hydrogenated boron nitride nanosheets, and the hydrogenated boron nitride nanosheets are configured in such a way that, a lattice constant of the hydrogenated boron nitride nanosheets is compressed in response to a pressure applied to the hydrogenated boron nitride nanosheets.

2. The display panel according to claim 1 , wherein the hydrogenated boron nitride nanosheets comprise hydrogenated bilayered hexagonal boron nitride nanosheets.

3. The display panel according to claim 1 , wherein the display panel further comprises a protection layer which covers the OLED device layer, and the protection layer is made of a thermoplastic resin material.

4. The display panel according to claim 1 , wherein the material for the base layer further comprises a thermoplastic resin material, and the hydrogenated boron nitride nanosheets disperse in the thermoplastic resin material.

5. The display panel according to claim 3 , wherein the thermoplastic resin material comprises at least one of polyolefin, polyamide, polycarbonate, polyoxymethylene, polyphenyleneoxide, chlorinated polyether, polyvinyl chloride, polysulfone, polyphenylene sulfide, polyetheretherketone and poly(acrylic acid).

6. The display panel according to claim 4 , wherein the thermoplastic resin material comprises at least one of polyolefin, polyamide, polycarbonate, polyoxymethylene, polyphenyleneoxide, chlorinated polyether, polyvinyl chloride, polysulfone, polyphenylene sulfide, polyetheretherketone and poly(acrylic acid).

7. A repairing method for the display panel according to claim 1 which is cracked, comprising:
matching and joining together cracked parts of the display panel;
applying pressure to the base layer, making a lattice constant of the hydrogenated boron nitride nanosheets be compressed.

8. The repairing method according to claim 7 , wherein said matching and joining together cracked parts of the display panel comprises:
matching and joining together cracked parts of the display panel, making a plurality of the hydrogenated boron nitride nanosheets in the base layer where it has been cracked be correspondingly inter-attracted and connected together by hydrogen bond interaction.

9. The repairing method according to claim 7 , wherein said applying pressure to the base layer, making a lattice constant of the hydrogenated boron nitride nanosheets be compressed comprises:
by applying pressure to the base layer, making a lattice constant of the hydrogenated boron nitride nanosheets be compressed, changing a plurality of the hydrogenated boron nitride nanosheets in the base layer where it has been cracked from semiconductors into conductors.

10. The repairing method according to claim 7 , wherein in a situation of the hydrogenated boron nitride nanosheets comprising hydrogenated bilayered hexagonal boron nitride nanosheets, said making a lattice constant of the hydrogenated boron nitride nanosheets be compressed comprises:
making the lattice constant of the hydrogenated boron nitride nanosheets be compressed by about 7%˜9%.

11. The repairing method according to claim 7 , wherein in a situation of the display panel further comprising a protection layer which covers the OLED device layer and is made of a thermoplastic resin material,
the repairing method, after the step of matching and joining together cracked parts of the display panel, further comprises:
heat-treating a region of the protection layer which corresponds to a region where the cracked parts of the display panel are matched and joined together, making the protection layer where it has been cracked be connected together.

12. The repairing method according to claim 11 , wherein the thermoplastic resin material comprises at least one of polyolefin, polyamide, polycarbonate, polyoxymethylene, polyphenyleneoxide, chlorinated polyether, polyvinyl chloride, polysulfone, polyphenylene sulfide, polyetheretherketone and poly(acrylic acid).

13. The repairing method according to claim 11 , wherein in a situation of the thermoplastic resin material is polyolefin, said heat-treating comprises: heating to a temperature of about 80° C., and retaining the temperature for about 30 min.

14. The repairing method according to claim 7 , wherein in a situation of the material for the base layer further comprising a thermoplastic resin material, and the hydrogenated boron nitride nanosheets dispersing in the thermoplastic resin material, the repairing method, after the step of matching and joining together cracked parts of the display panel, further comprises: heat-treating a region of the base layer which corresponds to a region where the cracked parts of the display panel are matched and joined together, making the base layer where it has been cracked be connected together.

15. The repairing method according to claim 14 , wherein the thermoplastic resin material comprises at least one of polyolefin, polyamide, polycarbonate, polyoxymethylene, polyphenyleneoxide, chlorinated polyether, polyvinyl chloride, polysulfone, polyphenylene sulfide, polyetheretherketone and poly(acrylic acid).

16. The repairing method according to claim 15 , wherein in a situation of the thermoplastic resin material is polyolefin, said heat-treating comprises: heating to a temperature of about 80° C., and retaining the temperature for about 30 min.

17. A display panel, comprising a base layer and an OLED device layer which is positioned on the base layer, wherein a material for the base layer comprises hydrogenated boron nitride nanosheets, and the hydrogenated boron nitride nanosheets comprise hydrogenated bilayered hexagonal boron nitride nanosheets.

18. The display panel according to claim 17 , wherein the display panel further comprises a protection layer which covers the OLED device layer, and the protection layer is made of a thermoplastic resin material.

19. The display panel according to claim 17 , wherein the material for the base layer further comprises a thermoplastic resin material, and the hydrogenated boron nitride nanosheets disperse in the thermoplastic resin material.

20. The display panel according to claim 19 , wherein the thermoplastic resin material comprises at least one of polyolefin, polyamide, polycarbonate, polyoxymethylene, polyphenyleneoxide, chlorinated polyether, polyvinyl chloride, polysulfone, polyphenylene sulfide, polyetheretherketone and poly(acrylic acid).

Assignees

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

Inventors

• Li Yanqiu
• Wang Hetao

Classifications

• H01L2251/568

  Electricity · mapped topic

• H01L51/56

  Electricity · mapped topic

• H01L51/5253 Primary

  Electricity · mapped topic

• H01L51/524

  Electricity · mapped topic

• H10K50/844

  Encapsulations · CPC title