Display device

Patent metadata

Field	Value
Publication number	US-10312299-B2
Application number	US-201715662105-A
Country	US
Kind code	B2
Filing date	Jul 27, 2017
Priority date	Jul 29, 2016
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

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.

First claim

What is claimed is:

1. A display device comprising:
an organic light emitting display panel defining a display area for displaying an image and a non-display area adjacent the display area, and comprising:
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 defining 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 comprising:
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 comprises a first upper surface corresponding to the first thin film sealing area, and a second upper surface corresponding to the second thin film sealing area and protruding away from the base layer.

2. The display device of claim 1 , wherein the touch detection unit is directly on the thin film sealing layer.

3. The display device of claim 1 , wherein the first thin film sealing area and the second thin film sealing area overlap the display area on a plane, and
wherein the second thin film sealing area is between the first thin film sealing area and the non-display area on a plane.

4. The display device of claim 1 , wherein the second sensor part is curved corresponding to a form of the second upper surface.

5. The display device of claim 1 , wherein an average distance between the first upper surface and the base layer is a first distance, and
wherein a maximum distance between the second upper surface and the base layer is a second distance that is greater than the first distance.

6. The display device of claim 5 , wherein a minimum distance between the second upper surface and the base layer is a third distance that is less than the first distance.

7. The display device of claim 1 , wherein an average interval between each of a plurality of points in the first sensor part and the base layer is a first interval, and
wherein an average interval between each of a plurality of points in the second sensor part and the base layer is substantially identical to the first interval.

8. The display device of claim 1 , wherein the thin film sealing layer comprises:
a first inorganic layer on the light emitting device layer;
a first organic layer on the first inorganic layer; and
a second inorganic layer on the first organic layer.

9. The display device of claim 8 , wherein an upper surface of the first organic layer contacting the second inorganic layer comprises:
a first surface corresponding to the first thin film sealing area; and
a second surface corresponding to the second thin film sealing area and protruding away from the base layer.

10. The display device of claim 8 , wherein the thin film sealing layer further comprises:
a second organic layer on the second inorganic layer; and
a third inorganic layer on the second organic layer.

11. The display device of claim 10 , wherein an upper surface of at least one of the first organic layer and the second organic layer comprises:
a first surface corresponding to the first thin film sealing area; and
a second surface corresponding to the second thin film sealing area and protruding away from the base layer.

12. The display device of claim 8 , wherein the thin film sealing layer further comprises an organic coating layer between the second inorganic layer and the second sensor part, the organic coating layer corresponding to the second thin film sealing area and comprising an upper surface protruding away from the base layer.

13. The display device of claim 1 , wherein the first sensor part and the second sensor part are on the same layer.

14. The display device of claim 1 , wherein the second upper surface of the thin film sealing layer comprises:
a peak having the furthest distance from the base layer;
a first inclined surface connecting the first upper surface and the peak and extending away from the base layer; and
a second inclined surface extending from the peak to the base layer.

15. The display device of claim 14 , wherein the second thin film sealing area surrounds the first thin film sealing area, and
wherein the peak overlaps the second sensor part.

16. A display device comprising:
a base layer;
a circuit layer on the base layer;
a light emitting device layer on the circuit layer;
a thin film sealing layer on the light emitting device layer, and comprising a first upper surface and a second upper surface having a peak that protrudes from a reference surface, which is an extension of the first upper surface, in a direction away from the base layer;
a first sensor part on the first upper surface; and
a second sensor part on the second upper surface, curved corresponding to a form of the second upper surface, and overlapping the peak.

17. The display device of claim 16 , wherein the second upper surface surrounds the first upper surface on a plane.

18. The display device of claim 16 , wherein an average distance between the first upper surface and the base layer is a first distance,
wherein a distance between the peak and the base layer is a second distance that is greater than the first distance, and
wherein a minimum distance between the second upper surface and the base layer is a third distance that is less than the first distance.

19. The display device of claim 16 , wherein the thin film sealing layer comprises at least one organic layer, and
wherein a form of the second upper surface corresponds to the at least one organic layer.

20. The display device of claim 16 , wherein the first sensor part and the second sensor part are on the same layer.

21. A display device comprising:
an organic light emitting display panel, where a display area for displaying an image and a non-display area adjacent to the display area are defined, the organic light emitting display panel comprising 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 to the first thin film sealing area; and
a touch detection unit comprising touch electrodes on the first thin film sealing area and the second thin film sealing area,
wherein the second thin film sealing area comprises a peak having a furthest distance from the base layer, and
wherein a peripheral touch electrode closest to the non-display area among the touch electrodes overlaps the peak.

22. The display device of claim 21 , wherein the touch electrodes comprise:
M first touch electrodes extending along a first direction and arranged sequentially along a second direction crossing the first direction; and
N second touch electrodes extending along the second direction and arranged sequentially along the first direction, and
wherein the peak overlaps a 1st first touch electrode and an Mth first touch electrode of the M first touch electrodes.

23. The display device of claim 22 , wherein the peak overlaps a 1st second touch electrode and an Nth second touch electrode of the N second touch electrodes.

24. The display device of claim 21 ,
wherein a distance between the peak and the base layer

Assignees

• Samsung Display Co Ltd

Inventors

• Jun Sanghyun
• Bang Kiho
• Jung Eunae
• Ku Keunlim
• Ji Mi-Ran

Classifications

• G06F2203/04107

  Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds · CPC title

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title

• G06F3/0416 Primary

  Control or interface arrangements specially adapted for digitisers · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title