IP Library Granted Patent US 9,209,420
Granted Patent B2
US 9,209,420 · App. 14/293,926 · Granted Dec 8, 2015

Display device

Inventors: So Yeon Han (Seoul, KR); Hak Sun Kim (Seoul, KR); Tae-Hyeog Jung (Hwaseong-si, KR); Kyu-Taek Lee (Cheonan-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L51/524H01L27/3244H01L2251/5338
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Quick Facts
Patent No.
US 9,209,420
App. No.
14/293,926
Granted
Dec 8, 2015
Kind
B2
Abstract

A display device according to an exemplary embodiment of the present invention includes a display panel. A protective window is formed on the display panel. The protective window includes a first transparent member. The first transparent member includes a plurality of protrusions. The first transparent member is made of an elastomer. A second transparent member is provided on the first transparent member. The second transparent member is made of a high-hardness polymer material. The second transparent member fills spaces between the plurality of protrusions and forms a flat surface.

Claims (42)

1. A display device, comprising:

a display panel; and

a protective window on the display panel, the protective window including

a transparent member including a recessed portion and

a filling member filling the recessed portion, wherein the filling member is formed of an elastomer,

wherein the transparent member comprises a first area and second areas provided at sides of the first area, and

wherein the recessed portion is provided in the first area, and the second areas have no recessed portions.

2. The display device of claim 1 , wherein

the elastomer includes urethane or silicone, and

the transparent member includes poly-silsesquioxane or high-hardness poly-methyl methacrylate.

3. The display device of claim 1 , wherein the recessed portion is provided at a middle portion of the display panel.

4. The display device of claim 1 , wherein the recessed portion comprises a plurality of recessed portions.

5. The display device of claim 4 ,

wherein cross-sections of the plurality of small recessed portions have substantially the same size and substantially the same shape, and

wherein the plurality of recessed portions are separated from each other at a predetermined distance.

6. The display device of claim 4 , wherein depths of the plurality of recessed portions are increased or decreased toward edges adjacent to the second areas from the middle portion of the first area.

7. The display device of claim 4 , wherein distances between the plurality of recessed portions are increased or decreased toward edges adjacent to the second areas from the middle portion of the first area.

8. The display device of claim 1 , wherein a thickness of the protective window is less than about 400 μm.

9. The display device of claim 1 , wherein

the transparent member comprises a top surface and a bottom surface, and

the recessed portion is formed in at least one of the top surface or the bottom surface.

10. The display device of claim 1 , wherein a depth of a cross-section of the recessed portion is increased or decreased away from the middle portion of the recessed portion.

11. The display device of claim 10 , wherein the cross-section of the recessed portion is symmetrical with respect to an imaginary vertical middle portion line that is perpendicular to the top surface of the transparent member.

12. A display device, comprising:

a display panel; and

a protective window formed on the display panel, the protective window including:

a flexible layer including at least one protrusion on a surface thereof; and

a rigid layer formed on the flexible layer to cover the at least one protrusion,

wherein the rigid layer comprises a first area and second areas provided at sides of the first area, and

wherein the first area covers the at least one protrusion, and the second areas covers no protrusions.

13. The display device of claim 12 , wherein

the flexible layer includes urethane or silicone, and

the rigid layer includes poly-silsesquioxane or high-hardness poly-methyl methacrylate.

14. The display device of claim 12 , wherein the protrusion comprises a plurality of protrusions.

15. The display device of claim 14 ,

wherein cross-sections of the plurality of protrusions have substantially the same size and substantially the same shape, and

wherein the plurality of protrusions are separated from each other at a predetermined distance.

16. The display device of claim 14 , wherein depths of the plurality of protrusions increase or decrease toward edges adjacent to the second areas from the middle portion of the first area.

17. The display device of claim 14 , wherein distances between the plurality of protrusions increase or decrease toward edges adjacent to the second areas from the middle portion of the first area.

18. The display device of claim 12 , wherein a thickness of the protective window is less than about 400 μm.

19. The display device of claim 12 , wherein a depth of a cross-section of the protrusion increases or decreases away from the middle portion of the recessed portion.

20. The display device of claim 19 , wherein the cross-section of the protrusions is symmetrical with respect to an imaginary vertical middle portion line that is perpendicular to the top surface of the rigid layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 2, 2014
From: HAN, SO YEON; KIM, HAK SUN; JUNG, TAE-HYEOG; LEE, KYU-TAEK
To: SAMSUNG DISPLAY CO., LTD
Reel/Frame 033011/0426 →
Priority Claims (1)
KR 10-2013-0115683 · Sep 27, 2013 · national
Continuity (1)
Related Publication 20150090969A1 · Apr 2, 2015