IP Library › Granted Patent US 11,271,054
Granted Patent B2
US 11,271,054 · App. 16/384,806 · Granted Mar 8, 2022

Organic light emitting display device

Inventors: Hyeon Bum Lee (Hwaseong-si, KR); Hyoeng Ki Kim (Suwon-si, KR); Jun Hyuk Woo (Yongin-si, KR); Kwang Woo Park (Hwaseong-si, KR)
Assignee: Samsung Display Co., Ltd.
H01L27/3246G06F3/044G06F3/0412H01L27/322H01L27/323H01L27/3276H01L51/5012H01L51/5256H01L51/5275H01L51/5284G06F2203/04111G06F2203/04112
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Quick Facts
Patent No.
US 11,271,054
App. No.
16/384,806
Granted
Mar 8, 2022
Kind
B2
Abstract

An organic light emitting display device including a base layer; an insulating layer disposed on the base layer and including a flat region having a flat surface and a lens region having a concave or convex surface; a dam disposed on the insulating layer and defining an opening exposing the lens region; and a color filter disposed on the lens region of the insulating layer and filling the opening, The dam includes a sensing electrode.

Claims (56)

1. An organic light emitting display device, comprising:

a base layer;

a conductive layer disposed on the base layer;

an insulating layer disposed on the conductive layer and comprising a flat region having a flat surface and a lens region having a concave surface recessed toward the base layer;

a dam disposed on the insulating layer and defining an opening exposing the lens region; and

a color filter disposed on the lens region of the insulating layer and filling the opening,

wherein:

the dam comprises a sensing electrode;

the conductive layer is disposed between the base layer and the insulating layer;

the insulating layer includes a contact hole exposing the conductive layer;

the conductive layer and the sensing electrode contact each other through the contact hole; and

the color filter directly contacts the concave surface of the insulating layer.

2. The organic light emitting display device of claim 1 , wherein the dam comprises a liquid-repellent material layer disposed on the sensing electrode.

3. The organic light emitting display device of claim 2 , wherein the dam further comprises a black matrix disposed between the sensing electrode and the liquid-repellent material layer.

4. The organic light emitting display device of claim 3 , wherein the black matrix covers the sensing electrode.

5. The organic light emitting display device of claim 1 , wherein the color filter directly contacts the dam.

6. The organic light emitting display device of claim 1 , wherein the conductive layer has a three-layer structure of titanium (Ti)/aluminum (Al)/titanium (Ti).

7. The organic light emitting display device of claim 1 , wherein the lens region has a concave shape, and a refractive index of the color filter is greater than a refractive index of the insulating layer.

8. The organic light emitting display device of claim 1 , wherein the sensing electrode is disposed directly on the insulating layer.

9. The organic light emitting display device of claim 1 , wherein the sensing electrode has a three-layer structure of titanium (Ti)/aluminum (Al)/titanium (Ti).

10. The organic light emitting display device of claim 1 , wherein a bending area and a non-bending area are defined in the base layer.

11. The organic light emitting display device of claim 1 , wherein the insulating layer includes an inclined surface in the lens region, and the inclined surface has a slope of 50° to 80°.

12. The organic light emitting display device of claim 1 , wherein the lens region has a width of 20 μm to 26 μm.

13. The organic light emitting display device of claim 1 , wherein:

the base layer defines a light emitting region and a non-light emitting region surrounding the light emitting region;

the dam is disposed in the non-light emitting region; and

the lens region overlaps the light emitting region.

14. An organic light emitting display device, comprising:

a base substrate;

a pixel electrode disposed on the base substrate;

a pixel defining layer disposed on the pixel electrode and having a first opening exposing a part of the pixel electrode;

an organic light emitting layer disposed on the exposed pixel electrode;

a common electrode disposed on the organic light emitting layer and the pixel defining layer;

an encapsulation layer disposed on the common electrode;

a first touch conductive layer disposed on the encapsulation layer, the first touch conductive layer including a bridge wiring;

an insulating layer disposed on the first touch conductive layer, the insulating layer including a concave surface recessed toward the base substrate;

a dam disposed on the insulating layer and having a second opening exposing at least a part of the insulating layer; and

a color filer disposed on the exposed insulating layer,

wherein:

the first touch conductive layer is disposed between the encapsulation layer and the insulating layer;

the dam comprises:

a second touch conductive layer disposed on the insulating layer, the second touch conductive layer including a sensing electrode;

a black matrix disposed on the second touch conductive layer; and

a liquid-repellent material layer disposed on the black matrix;

the insulating layer includes a contact hole exposing the first touch conductive layer;

the bridge wiring of the first touch conductive layer and the sensing electrode of the second touch conductive layer contact each other through the contact hole; and

the color filter directly contacts the concave surface of the insulating layer.

15. The display device of claim 14 , wherein the insulating layer includes a flat region overlapping the pixel defining layer and a lens region overlapping the first opening.

16. The display device of claim 14 , wherein the second opening overlaps the first opening.

17. The display device of claim 16 , wherein a width of the first opening is less than a width of the second opening.

18. The display device of claim 14 , wherein:

the second touch conductive layer and the black matrix are in direct contact with each other; and

the black matrix and the liquid-repellent material layer are in direct contact with each other.

19. The display device of claim 14 , wherein the insulating layer comprises an organic material.

20. The display device of claim 14 , wherein the color filter comprises a material denser than a material of the insulating layer.

21. The organic light emitting display device of claim 5 , wherein the sensing electrode directly contacts the color filter.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 15, 2019
From: LEE, HYEON BUM; KIM, HYOENG KI; WOO, JUN HYUK; PARK, KWANG WOO
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 048902/0633 →
Priority Claims (1)
KR 10-2018-0123099 · Oct 16, 2018 · national
Continuity (1)
Related Publication 20200119113A1 · Apr 16, 2020
Cited By (3)
US 12,336,359 US 12,373,055 US 12,532,630