ORGANIC LIGHT EMITTING DISPLAY DEVICE

• US 20150049030A1
• Filed: 02/25/2014
• Published: 02/19/2015
• Est. Priority Date: 08/19/2013
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: HER, Yong-Koo
• Granted Patent: US 9,696,835 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04111 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 Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/046 by electromagnetic means

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.

Claims

1. An organic light emitting display device, comprising:

an organic light emitting display panel 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, a sealing layer covering the organic light emitting devices, and a first light blocking layer disposed on the sealing layer and overlapping the non-light emitting area; and

a touch panel comprising first touch electrodes configured to receive scan signals and second touch electrodes crossing the first touch electrodes and configured to output sensing signals, wherein

the first touch electrodes 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 the first touch electrodes are disposed on a layer different from a layer on which the second touch electrodes are disposed.

3. The organic light emitting display device of claim 2, wherein the first touch electrodes comprise openings overlapping corresponding light emitting areas of the light emitting areas and the second touch electrodes comprise openings overlapping corresponding light emitting areas of the light emitting areas.

4. The organic light emitting display device of claim 2, further comprising a second light blocking layer disposed on the first light blocking layer, the second light blocking layer covering the 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 same layer,

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.

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 the first connection parts are disposed on the 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 first light blocking layer.

10. The organic light emitting display device of claim 8, further comprising a second light blocking layer disposed on the first light blocking layer, the second light blocking layer covering the connection parts exposed through the first light blocking layer.

11. An organic light emitting display device, comprising:

an organic light emitting display panel 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 configured to receive scan signals and second touch electrodes crossing the first touch electrodes and configured to output sensing signals, wherein

the first touch electrodes and the second touch electrodes are disposed on the sealing layer overlapping with the non-light emitting area, and at least one of the first touch electrodes and the second touch electrodes comprises a conductive light blocking material.

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, further comprising 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 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 a 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 first light blocking layer.