Display device

Patent metadata

Field	Value
Publication number	US-9865844-B1
Application number	US-201715480620-A
Country	US
Kind code	B1
Filing date	Apr 6, 2017
Priority date	Jun 28, 2016
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A display device includes a display panel and a cover window disposed on the display panel. The cover window includes a first window member and a second window member. The first window member includes an impact absorption layer. The second window member includes an optical compensation layer and a film layer disposed on the optical compensation layer. The second window member further includes a coating portion disposed on the film layer or a third functional coating layer disposed on the film layer. The first window member is disposed between the display panel and the second window member, or the second window member is disposed between the display panel and the first window member.

First claim

What is claimed is:

1. A display device comprising:
a display panel; and
a cover window disposed on the display panel,
wherein the cover window comprises:
a first window member disposed on the display panel, the first window member comprising an impact absorption layer; and
a second window member disposed on the first window member, the first window member being disposed between the display panel and the second window member, and

wherein the second window member comprises:
an optical compensation layer;
a film layer disposed on the optical compensation layer; and
a coating portion disposed on the film layer.

2. The display device of claim 1 , further comprising:
a first light blocking layer disposed between the first window member and the second window member, the first light blocking layer being further disposed in association with at least one edge of the first window member and the second window member.

3. The display device of claim 2 , wherein a thickness of the first light blocking layer is greater than or equal to 5 μm and less than or equal to 40 μm.

4. The display device of claim 1 , further comprising:
a second light blocking layer disposed between the optical compensation layer and the first window member.

5. The display device of claim 1 , wherein:
the impact absorption layer is formed of thin glass; and
a Young's modulus of the impact absorption layer is greater than or equal to 40 GPa and less than or equal to 60 GPa.

6. The display device of claim 5 , wherein a thickness of the impact absorption layer is greater than or equal to 50 μm and less than or equal to 100 μm.

7. The display device of claim 1 , wherein the impact absorption layer comprises:
an impact absorption layer formed of a thermoplastic resin, a Young's modulus of the impact absorption layer being greater than or equal to 10 MPa and less than or equal to 200 MPa; and
an impact absorption coating layer disposed on the impact absorption layer, a Young's modulus of the impact absorption coating layer being greater than or equal to 20 MPa and less than or equal to 80 MPa.

8. The display device of claim 7 , wherein a thickness of the impact absorption layer is greater than or equal to 100 μm and less than or equal to 400 μm.

9. The display device of claim 1 , wherein the coating portion comprises:
a first functional coating layer, a hardness of the first functional coating layer being greater than or equal to 3 H and less than or equal to 6 H; and
a second functional coating layer disposed on the first functional coating layer.

10. The display device of claim 9 , wherein the first functional coating layer comprises at least one of an acryl-based resin, a silicon-based resin, and nanoparticles.

11. The display device of claim 9 , wherein the second functional coating layer comprises at least one of a fluorinated-based resin and a silicon-based resin.

12. The display device of claim 1 , wherein the optical compensation layer comprises silsesquioxane.

13. The display device of claim 1 , wherein the film layer comprises at least one of polyethylene naphthalate (PEN), polymethyl methacrylate (PMMA), polyurethane (PU), polyethylene terephthalate (PET), polyimide (PI), and polycarbonate (PC).

14. A display device comprising:
a display panel; and
a cover window disposed on the display panel,
wherein the cover window comprises:
a second window member disposed on the display panel; and
a first window member disposed on the second window member, the second window member being disposed between the first window member and the display panel,

wherein the first window member comprises an impact absorption layer, and
wherein the second window member comprises:
an optical compensation layer;
a film layer disposed on the optical compensation layer; and
a third functional coating layer disposed on the film layer.

15. The display device of claim 14 , further comprising:
a first light blocking layer disposed between the first window member and the second window member, the first light blocking layer being further disposed in association with at least one edge of the first window member and the second window member.

16. The display device of claim 14 , wherein a thickness of the first light blocking layer is greater than or equal to 5 μm and less than or equal to 40 μm.

17. The display device of claim 14 , further comprising:
a second light blocking layer disposed between the impact absorption layer and the second window member.

18. The display device of claim 14 , wherein a hardness of the third functional coating layer is greater than or equal to 3 H and less than or equal to 6 H.

19. The display device of claim 14 , wherein the third functional coating layer comprises at least one of an acryl-based resin, a silicon-based resin, and nanoparticles.

20. The display device of claim 14 , further comprising:
a fourth functional coating layer disposed on the impact absorption layer.

21. The display device of claim 20 , wherein the fourth functional coating layer comprises at least one of a fluorinated-based resin and a silicon-based resin.

22. The display device of claim 14 , wherein the impact absorption layer comprises:
an impact absorption layer formed of a thermoplastic resin, a Young's modulus of the impact absorption layer being greater than or equal to 10 MPa and less than or equal to 200 MPa; and
an impact absorption coating layer disposed on the impact absorption layer, a Young's modulus of the impact absorption coating layer being greater than or equal to 20 MPa and less than or equal to 80 MPa.

23. The display device of claim 14 , wherein the optical compensation layer comprises silsesquioxane.

24. The display device of claim 14 , wherein the film layer comprises at least one of polyethylene naphthalate (PEN), polymethyl methacrylate (PMMA), polyurethane (PU), polyethylene terephthalate (PET), polyimide (PI), and polycarbonate (PC).

Assignees

• Samsung Display Co Ltd

Inventors

• Park Young Sang
• Kim Ah Young
• Jeong Chul Ho

Classifications

• H01L51/5281 Primary

  Electricity · mapped topic

• H01L51/524

  Electricity · mapped topic

• H01L2251/558

  Electricity · mapped topic

• H01L2251/5338

  Electricity · mapped topic

• H01L51/5253

  Electricity · mapped topic