IP Library › Granted Patent US 11,348,980
Granted Patent B2
US 11,348,980 · App. 17/156,427 · Granted May 31, 2022

Display device

Inventors: Sanghyun Jun (Suwon-si, KR); Kiho Bang (Hwaseong-si, KR); Eunae Jung (Hwaseong-si, KR); Keunlim Ku (Hwaseong-si, KR); Mi-ran Ji (Hwaseong-si, KR)
Assignee: Samsung Display Co., Ltd.
H01L27/323G06F3/044G06F3/0412G06F3/0443G06F3/0446H01L51/5253H01L51/5256G06F3/04164G06F2203/04102G06F2203/04107G06F2203/04111G06F2203/04112H01L27/3244H01L2251/5338
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Quick Facts
Patent No.
US 11,348,980
App. No.
17/156,427
Granted
May 31, 2022
Kind
B2
Abstract

A display device includes an organic light emitting display panel defining a display area for displaying an image and a non-display area adjacent the display area, and including a base layer, a circuit layer on the base layer, a light emitting device layer on the circuit layer, and a thin film sealing layer on the light emitting device layer and divided into a first thin film sealing area, and a second thin film sealing area adjacent the first thin film sealing area, and a touch detection unit including a first sensor part on the first thin film sealing area of the thin film sealing layer, and a second sensor part on the second thin film sealing area of the thin film sealing layer, wherein an upper surface of the thin film sealing layer that faces the touch detection unit includes a first upper surface in the first thin film sealing area, and a second upper surface in the second thin film sealing area and protruding away from the base layer.

Claims (36)

1. A display device comprising:

a base layer;

a circuit layer on the base layer;

a light emitting layer on the circuit layer;

a thin film sealing layer covering the light emitting layer, and comprising a first thin film sealing area, and a second thin film sealing area adjacent to the first thin film sealing area; and

touch electrodes on the first thin film sealing area and the second thin film sealing area,

wherein some of the touch electrodes from among the touch electrodes overlapping the second thin film sealing area when viewed in a thickness direction of the base layer are bent in accordance with a shape of an upper surface of the thin film sealing layer.

2. The display device of claim 1 , wherein the upper surface of the thin film sealing layer comprises a first upper surface of the first thin film sealing area and a second upper surface of the second thin film sealing area, and

wherein the second upper surface comprises a first inclined surface extending, in a direction away from the base layer, from the first upper surface, and a second inclined surface extending, in a direction approaching the base layer, from the first inclined surface.

3. The display device of claim 2 , wherein the some of the touch electrodes overlap the first inclined surface and the second inclined surface.

4. The display device of claim 2 , wherein a first distance between a boundary between the first inclined surface and the second inclined surface and the base layer is greater than a second distance between the first upper surface and the base layer.

5. The display device of claim 4 , wherein a distance between a point of the first inclined surface and the base layer is greater than the second distance and less than the first distance.

6. The display device of claim 4 , wherein a distance between a point of the second inclined surface and the base layer is less than the second distance.

7. The display device of claim 6 , wherein a distance between another point of the second inclined surface and the base layer is greater than or equal to the second distance and less than the first distance.

8. The display device of claim 1 , wherein the thin film sealing layer further comprises an organic layer,

wherein an upper surface of the organic layer comprises a first organic upper surface located in the first thin film sealing area, and a second organic upper surface located in the second thin film sealing area, and

wherein a portion of the second organic upper surface protrudes, in a direction away from the base layer, from the first organic upper surface.

9. The display device of claim 1 , wherein the thin film sealing layer further comprises an organic coating layer, and

wherein, when viewed in the thickness direction of the base layer, the organic coating layer is non-overlapping with the first thin film sealing area.

10. The display device of claim 1 , wherein the second thin film sealing area comprises a plurality of second thin film sealing areas that are spaced from each other with the first thin film sealing area interposed therebetween.

11. The display device of claim 1 , wherein the second thin film sealing area surrounds the first thin film sealing area.

12. The display device of claim 1 , wherein the touch electrodes comprise a first touch electrode on the first thin film sealing area, and a second touch electrode on the second thin film sealing area, and

wherein a distance between the first touch electrode and the base layer is less than a distance between a portion of the second touch electrode and the base layer.

13. The display device of claim 12 , wherein a distance between another portion of the second touch electrode and the base layer is less than the distance between the first touch electrode and the base layer.

14. The display device of claim 1 , wherein the thin film sealing layer comprises a first inorganic layer, an organic layer on the first inorganic layer, and a second inorganic layer on the organic layer, and

wherein the second inorganic layer comprises a plurality of layers.

15. A display device comprising:

a display panel having a display area for displaying an image and a non-display area adjacent to the display area, the display panel comprising:

a base layer, a circuit layer on the base layer, a light emitting layer on the circuit layer, and a thin film sealing layer on the light emitting layer and comprising a first inorganic layer, an organic layer on the first inorganic layer, and a second inorganic layer on the organic layer; and

a sensor directly on the thin film sealing layer and comprising touch electrodes overlapping the display area,

wherein some of the touch electrodes from among the touch electrodes adjacent to the non-display area when viewed in a thickness direction of the display panel have a curved shape.

16. The display device of claim 15 , wherein the second inorganic layer comprises a plurality of layers.

17. The display device of claim 15 , wherein an upper surface of the thin film sealing layer comprises a first upper surface, and a second upper surface adjacent to the first upper surface,

wherein the first upper surface and the second upper surface overlap the display area,

wherein the second upper surface is closer to the non-display area than the first upper surface, when viewed in the thickness direction of the display panel, and

wherein the second upper surface comprises a first inclined surface extending, in a direction away from the base layer, from the first upper surface, and a second inclined surface extending, in a direction approaching the base layer, from the first inclined surface.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 4, 2021
From: JUN, SANGHYUN; BANG, KIHO; JUNG, EUNAE; KU, KEUNLIM; JI, MI-RAN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 058028/0881 →
Priority Claims (1)
KR 10-2016-0097498 · Jul 29, 2016 · national
Continuity (3)
Continuation 16372276 · Apr 1, 2019
Continuation 15662105 · Jul 27, 2017
Related Publication 20210143226A1 · May 13, 2021