IP Library Granted Patent US 9,058,154
Granted Patent B2
US 9,058,154 · App. 13/469,672 · Granted Jun 16, 2015

Window substrate and display device having the same

Inventor: Daihan Cho (Yongin, KR)
Assignee: Samsung Display Co., Ltd.
G06F1/1626G06F1/1643G06F1/1671G06F3/041
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Quick Facts
Patent No.
US 9,058,154
App. No.
13/469,672
Granted
Jun 16, 2015
Kind
B2
Abstract

A window substrate for a display device includes a base substrate including a display region and a non-display region disposed adjacent to at least one portion of the display region, a light shielding layer on the base substrate and facing at least one portion of the non-display region, the light shielding layer having at least one opening, and a filter layer on the base substrate and facing the opening, the filter layer being adapted to transmit a portion of a light passing through the opening.

Claims (66)

1. A window substrate for a display device, comprising:

a base substrate comprising a display region and a non-display region adjacent to at least one portion of the display region;

a light shielding layer on the base substrate and facing at least one portion of the non-display region, the light shielding layer having at least one opening; and

a filter layer on the base substrate and facing the opening, the filter layer being adapted to transmit a portion of a light passing through the opening, the filter layer comprising:

a plurality of first particles adapted to block the incident light, at least one of the first particles being separated from others of the first particles; and

a plurality of second particles adapted to transmit the incident light.

2. The window substrate of claim 1 , wherein the first particles and the light shielding layer have substantially the same color as each other.

3. The window substrate of claim 1 , wherein the first particles have a black color, and a weight ratio of the first particles to the second particles is in a range from 8:1 to 12:1.

4. The window substrate of claim 1 , wherein the first particles have a white color, and a weight ratio of the first particles to the second particles is in a range from 1.5:1 to 2.5:1.

5. The window substrate of claim 1 , further comprising a color layer interposed between the base substrate and the light shielding layer.

6. The window substrate of claim 5 , wherein the first particles and the color layer have substantially the same color as each other.

7. The window substrate of claim 1 , further comprising a color layer on the base substrate, the color layer facing the filter layer and adapted to filter a color of the incident light.

8. The window substrate of claim 1 , wherein the base substrate comprises a tempered glass or a reinforced plastic.

9. The window substrate of claim 1 , wherein the light shielding layer is directly on the base substrate and has substantially the same planar shape as the non-display region.

10. A display device comprising:

a display panel configured to display an image;

a housing configured to contain the display panel;

a touch panel on the display panel; and

a window substrate on the touch panel,

wherein the window substrate comprises:

a base substrate comprising a display region configured to transmit the image and a non-display region adjacent to at least one portion of the display region;

a light shielding layer on a bottom surface of the base substrate and facing at least one portion of the non-display region, the light shielding layer having at least one opening; and

a filter layer on the bottom surface of the base substrate facing the opening, the filter layer being adapted to transmit a portion of a light incident on the opening.

11. The display device of claim 10 , further comprising a light source portion in the housing and configured to generate the incident light.

12. The display device of claim 11 , wherein the light source portion comprises:

a light emitting device adapted to generate an originating light; and

a light guide plate adapted to guide the originating light toward the window substrate, wherein the incident light comprises a portion of the originating light emitted from the light guide plate.

13. The display device of claim 10 , wherein the filter layer comprises:

a plurality of first particles adapted to block the incident light; and

a plurality of second particles adapted to transmit the incident light.

14. The display device of claim 13 , wherein the first particles and the light shielding layer have substantially the same color as each other.

15. The display device of claim 13 , further comprising a color layer interposed between the base substrate and the filter layer.

16. The display device of claim 15 , wherein the first particles and the color layer have substantially the same color as each other.

17. The display device of claim 10 , further comprising a color layer on the surface of the base substrate, facing the filter layer and adapted to filter a specific color of the incident light.

18. The display device of claim 10 , wherein the base substrate comprises a tempered glass or a reinforced plastic.

19. The display device of claim 10 , wherein the light shielding layer is directly on the bottom surface of the base substrate and has substantially the same planar shape as the non-display region.

20. A window substrate for a display device, comprising:

a base substrate including a display region and a non-display region adjacent to the display region;

a light shielding layer on the base substrate and overlapped with the non-display region, the light shielding layer having an opening; and

a filter layer configured to fill the opening and to transmit a portion of an incident light to the opening, the filter layer comprising:

a plurality of first particles configured to block another portion of the incident light, at least one of the first particles being separated from others of the first particles; and

a plurality of second particles configured to transmit the portion of the incident light.

21. The window substrate of claim 20 , wherein the filter layer and the opening have a substantially identical shape, and the filter layer and the light shielding layer are disposed on the same layer.

22. The window substrate of claim 20 , wherein the filter layer comprises:

a first portion having the same shape as the opening and filling the opening; and

a second portion being connected to the first portion and overlapping the light shielding layer.

23. The window substrate of claim 20 , wherein the first particles and the light shielding layer have a substantially identical color.

24. The window substrate of claim 20 , further comprising a color layer interposed between the base substrate and the light shielding layer.

25. The window substrate of claim 24 , wherein the first particles and the color layer have a substantially identical color.

26. The window substrate of claim 20 , further comprising a color layer on and overlapped with the filter layer and configured to change a color of the incident light.

27. A display device comprising:

a display panel configured to display an image;

a touch panel on the display panel;

a window substrate on the touch panel; and

a light source portion configured to provide an incident light to the window substrate,

wherein the window substrate comprises:

a base substrate including a display region configured to transmit the image and a non-display region adjacent to the display region;

a light shielding layer on a bottom surface of the base substrate and overlapped with the non-display region, the light shielding layer having an opening; and

a filter layer configured to fill the opening and to transmit a portion of the incident light.

28. The display device of claim 27 , wherein the filter layer comprises:

a plurality of first particles configured to block another portion of the incident light; and

a plurality of second particles configured to transmit the portion of the incident light.

29. The display device of claim 28 , wherein the first particles and the light shielding layer have a substantially identical color.

30. The display device of claim 28 , further comprising a color layer interposed between the base substrate and the filter layer.

31. The display device of claim 30 , wherein the first particles and the color layer have a substantially identical color.

32. The display device of claim 27 , further comprising a color layer on and overlapped with the filter layer, and configured to change a color of the incident light.

Assignments (2)
MERGER Recorded Aug 10, 2012
From: SAMSUNG MOBILE DISPLAY CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 028769/0551 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 14, 2012
From: CHO, DAI-HAN
To: SAMSUNG MOBILE DISPLAY CO., LTD.
Reel/Frame 028200/0877 →
Priority Claims (1)
KR 10-2011-0090912 · Sep 7, 2011 · national
Continuity (1)
Related Publication 20130058128A1 · Mar 7, 2013