Organic light emitting display device

Patent metadata

Field	Value
Publication number	US-9696835-B2
Application number	US-201414189436-A
Country	US
Kind code	B2
Filing date	Feb 25, 2014
Priority date	Aug 19, 2013
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

An organic light emitting display device includes an organic light emitting display panel and touch electrodes directly disposed on the organic light emitting display panel. The organic light emitting display panel includes an organic light emitting device disposed in a light emitting area and a first light blocking layer disposed in a non-light emitting area. The touch electrodes are disposed on a sealing layer that covers the organic light emitting device. The touch electrodes are disposed to overlap with the non-light emitting area. At least one of the touch electrodes includes a conductive light blocking material.

First claim

What is claimed is:

1. An organic light emitting display device, comprising:
an organic light emitting display panel comprising:
a base substrate comprising light emitting areas and a non-light emitting area disposed adjacent to the light emitting areas;
organic light emitting devices disposed to correspond to the light emitting areas;
a sealing layer disposed on the organic light emitting devices overlapping the light emitting area and the non-light emitting area such that the organic light emitting devices are disposed between the sealing layer and the base substrate; and

a touch panel comprising:
first touch electrodes configured to receive scan signals;
second touch electrodes crossing the first touch electrodes and configured to output sensing signals; and
a first light blocking layer insulating the first touch electrodes and the second touch electrodes, and disposed between the first touch electrodes and the second touch electrodes, wherein
the first touch electrodes and the first light blocking layer are disposed directly on the sealing layer overlapping the non-light emitting area and the second touch electrodes are disposed on the sealing layer overlapping the non-light emitting area.

2. The organic light emitting display device of claim 1 , wherein a portion of the second touch electrodes is disposed on the first light blocking layer.

3. The organic light emitting display device of claim 2 , wherein:
the first touch electrodes surround a first portion of the light emitting areas and define openings corresponding to the first portion of the light emitting areas, and
the second touch electrodes surround a second portion of the light emitting areas and define openings corresponding to the second portion of the light emitting areas.

4. The organic light emitting display device of claim 2 , wherein the touch panel further comprises a second light blocking layer disposed on the first light blocking layer, the second light blocking layer covering the portion of the second touch electrodes disposed on the first light blocking layer.

5. The organic light emitting display device of claim 1 , wherein the first touch electrodes are extended in a first direction and arranged in a second direction crossing the first direction and the second touch electrodes are extended in the second direction and arranged in the first direction.

6. The organic light emitting display device of claim 5 , wherein each of the first touch electrodes comprises first sensor parts arranged in the first direction and first connection parts each electrically connecting at least two adjacent first sensor parts, and each of the second touch electrodes comprises second sensor parts arranged in the second direction and second connection parts each electrically connecting at least two adjacent second sensor parts.

7. The organic light emitting display device of claim 6 , wherein the first sensor parts and the second sensor parts are disposed on the sealing layer,
portions of the second connection parts are disposed on the first light blocking layer, and
the portions of the second connection parts that are disposed on the first light blocking layer are insulated from the first connection parts and cross the first connection parts.

8. The organic light emitting display device of claim 7 , wherein the first light blocking layer is disposed on the first sensor parts and the second sensor parts.

9. The organic light emitting display device of claim 8 , wherein
each of the second connection parts electrically connects the two adjacent second sensor parts through contact holes formed in the first light blocking layer.

10. The organic light emitting display device of claim 8 , wherein the second connection parts are exposed through the first light blocking layer, and the touch panel further comprises a second light blocking layer disposed on the first light blocking layer, the second light blocking layer covering the second connection parts exposed through the first light blocking layer.

11. An organic light emitting display device, comprising:
an organic light emitting display panel comprising:
a base substrate comprising light emitting areas and a non-light emitting area disposed adjacent to the light emitting areas;
organic light emitting devices disposed to respectively correspond to the light emitting areas; and
a sealing layer covering the organic light emitting devices; and

a touch panel comprising:
first touch electrodes disposed directly on the sealing layer and configured to receive scan signals;
second touch electrodes crossing the first touch electrodes and configured to output sensing signals;
an insulating layer disposed directly on the sealing layer and covering the first touch electrodes; and
a light blocking layer disposed on the insulating layer, covering the second touch electrodes, and comprising an insulating light blocking material,

wherein the first touch electrodes and the second touch electrodes are disposed on the sealing layer overlapping with the non-light emitting area, at least one of the first touch electrodes and the second touch electrodes comprises a conductive light blocking material, and a width of the first touch electrodes in a first direction is equal to a distance between two adjacent light emitting areas in the first direction.

12. The organic light emitting display device of claim 11 , wherein the conductive light blocking material comprises at least one of a chromium oxide, a chromium nitride, a titanium oxide, a titanium nitride, and an alloy thereof.

13. The organic light emitting display device of claim 11 , wherein the first touch electrodes are disposed on a layer different from a layer on which the second touch electrodes are disposed.

14. The organic light emitting display device of claim 13 , wherein the first touch electrodes comprise the conductive light blocking material, the second touch electrodes comprise a conductive reflective material.

15. The organic light emitting display device of claim 11 , wherein the first touch electrodes and the second touch electrodes comprise the conductive light blocking material.

16. The organic light emitting display device of claim 15 , wherein each of the first touch electrodes comprises first sensor parts arranged in the first direction and first connection parts each connecting at least two adjacent first sensor parts,
each of the second touch electrodes comprises second sensor parts arranged in a second direction crossing the first direction and second connection parts crossing the first connection parts, and
each of the second connection parts electrically connects at least two adjacent second sensor parts.

17. The organic light emitting display device of claim 16 , wherein the first sensor parts and the second sensor parts are disposed on a same layer, and
the first connection parts are disposed on a layer different from a layer on which the second connection parts are disposed, and
the first connection parts cross the second connection parts and are insulated from the second connection parts.

18. The organic light emitting display device of claim 17 , wherein the first connection parts are disposed on a same layer as the first sensor parts, and
each of the second connection parts electrically connects the two adjacent second sensor parts through contact holes formed in the insulating layer.

19. The organic light emitting display device of claim 11 , wherein a width of the light blocking layer in the second direction is equal to a distance bet

Assignees

• Samsung Display Co Ltd

Inventors

• Her Yong-Koo

Classifications

• 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

• G06F2203/04103

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

• G06F3/046

  by electromagnetic means · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• H10K59/873

  Encapsulations · CPC title