Cover window for display device, display device including the same, and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9250656-B2
Application number	US-201314056299-A
Country	US
Kind code	B2
Filing date	Oct 17, 2013
Priority date	Mar 20, 2013
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

A cover window for a display device includes a display area and a non-display area, the cover window including a frame member disposed corresponding to the non-display area, and a protective member disposed on the frame member corresponding to the display area and the non-display area.

First claim

What is claimed is:

1. A cover window for a display device that includes a display area and a non-display area, the cover window comprising:
a frame member disposed corresponding to the non-display area, the frame member including an inorganic material and being opaque; and
a protective member disposed on the frame member and corresponding to the display area and the non-display area, the frame member and the protective member overlapping each other in a lateral direction and being connected to one another, the protective member including a transparent material, a thermal expansion coefficient of the frame member being less than a thermal expansion coefficient of the protective member, the protective member being in tension in the lateral direction,
wherein the protective member includes:
a first protective member covering an upper surface and a side surface of the frame member, and
a second protective member disposed on the first protective member.

2. The cover window as claimed in claim 1 , wherein the frame member includes one or more of an inorganic metal, a metal alloy, a ceramic material, a carbon fiber, or a glass fiber.

3. The cover window as claimed in claim 1 , wherein the frame member and the protective member are formed in a single layer or a multi-layer.

4. The cover window as claimed in claim 3 , wherein the protective member includes:
a first protective member disposed on a same layer with the frame member, the first protective member corresponding to the display area; and
a second protective member disposed on the first protective member and the frame member.

5. The cover window as claimed in claim 4 , wherein
the first protective member is made of a transparent resin, and
the second protective member is made of a silsesquioxane.

6. The cover window as claimed in claim 1 , further comprising a light blocking member between the frame member and the protective member, the light blocking member corresponding to the non-display area.

7. The cover window as claimed in claim 1 , further comprising an opening formed in the frame member and the protective member through a region corresponding to at least a part of the non-display area.

8. The cover window as claimed in claim 1 , wherein at least a part of the frame member and at least a part of the protective member are bent.

9. The cover window as claimed in claim 8 , wherein the cover window has a thickness less than about 100 μm.

10. The cover window as claimed in claim 8 , further comprising a fixed member protruding from an edge of the frame member, wherein a hole is formed in a central portion of the fixed member.

11. The cover window as claimed in claim 10 , further comprising an auxiliary fixed member protruding from an edge of the protective member, wherein a hole is formed in a central portion of the auxiliary fixed member.

12. The cover window as claimed in claim 11 , wherein
the frame member and the protective member are bent at a plurality of points, and
auxiliary fixed members are disposed at the plurality of bent points, respectively.

13. The cover window as claimed in claim 8 , further comprising a light blocking member disposed between the frame member and the protective member, the light blocking member corresponding to the non-display area, wherein a groove is formed in at least a part of a top surface or a bottom surface of the light blocking member, the groove being formed in a region where the frame member and the protective member are bent.

14. The cover window as claimed in claim 13 , wherein
the frame member and the protective member are bent at a plurality of points, and
the grooves are formed at the plurality of bent points, respectively.

15. The cover window as claimed in claim 8 , further comprising:
a groove formed in at least a part of a top surface of the frame member, the groove being formed in a region where the frame member and the protective member are bent; and
a light blocking member disposed between the frame member and the protective member to cover the groove.

16. A method of manufacturing a cover window for a display device that includes a display area and a non-display area, the method comprising:
providing a frame member corresponding to the non-display area, the frame member including an inorganic material and being opaque;
disposing a protective member on the frame member and corresponding to the display area and the non-display area, the protective member including a transparent material, a thermal expansion coefficient of the frame member being less than a thermal expansion coefficient of the protective member, the disposing of the protective member being performed at a temperature greater than a room temperature; and
cooling the cover window to the room temperature after disposing the protective member, the protective member being in tension in the lateral direction after cooling the cover window,
wherein the protective member includes:
a first protective member covering an upper surface and a side surface of the frame member, and
a second protective member disposed on the first protective member.

17. The method as claimed in claim 16 , wherein disposing the protective member on the frame member includes:
disposing the first protective member by coating a transparent resin on the frame member; and
disposing the second protective member on the first protective member using a silsesquioxane.

18. The method as claimed in claim 17 , wherein:
the disposing of the protective member is performed at the temperature greater than the room temperature, and
the cooling of the cover window is performed after disposing the second protective member.

19. The method as claimed in claim 18 , wherein the disposing of the protective member is performed at a temperature greater than a use temperature range of the display device.

Assignees

• Samsung Display Co Ltd

Inventors

• Hirai Akira
• Han Kwan-Young
• Roh Hyoung-Suk

Classifications

• H04M1/0266

  for a display module assembly · CPC title

• Y10T29/49826

  Assembling or joining · CPC title

• G06F1/1637 Primary

  Details related to the display arrangement, including those related to the mounting of the display in the housing · CPC title

• H04M1/185

  Improving the shock resistance of the housing, e.g. by increasing the rigidity · CPC title

• G09F9/00 Primary

  Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) · CPC title