Organic light emitting display device and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9710090-B2
Application number	US-201514923881-A
Country	US
Kind code	B2
Filing date	Oct 27, 2015
Priority date	Oct 31, 2014
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

Disclosed is a touch panel integrated organic light emitting display apparatus. The apparatus includes a substrate, a thin film transistor disposed on the substrate, an organic light emitting unit including an anode, an organic emission layer and a cathode, an anode contact unit connected to the thin film transistor and extending from the anode, an encapsulation unit configured to cover the organic light emitting unit, a low-reflective adhesive member disposed on the encapsulation unit, the low-reflective adhesive member comprising an adhesive layer and a low-reflective pattern disposed on a lower surface of the adhesive layer, and a touch panel disposed on the low-reflective adhesive member, wherein the low-reflective pattern has a visible light absorption property.

First claim

What is claimed is:

1. An organic light emitting display apparatus comprising:
a substrate;
a thin film transistor on the substrate;
an organic light emitting unit on the thin film transistor, the organic light emitting unit comprising an anode, an organic emission layer and a cathode;
an anode contact unit connected to the thin film transistor and extended from the anode;
an encapsulation unit configured to cover the organic light emitting unit; and
a low-reflective pattern on the encapsulation unit,
wherein the low-reflective pattern has a visible light absorption property,
wherein the anode contact unit is formed of a same material as the anode, and
wherein a shape of the anode contact unit differs among subpixels corresponding to the organic light emitting unit.

2. The organic light emitting display apparatus according to claim 1 , wherein the low-reflective pattern is formed of a material absorbing 90% or more of visible light.

3. The organic light emitting display apparatus according to claim 1 , wherein the encapsulation unit comprises:
a first inorganic encapsulation layer,
an organic layer on the first inorganic encapsulation layer; and
a second inorganic encapsulation layer on the organic layer,
wherein the low-reflective pattern is in contact with the second inorganic encapsulation layer.

4. The organic light emitting display apparatus according to claim 1 , further comprising a bank configured to cover an edge of the anode,
wherein the low-reflective pattern overlaps with the bank.

5. The organic light emitting display apparatus according to claim 4 , wherein the low-reflective pattern is overlapped within the bank.

6. The organic light emitting display apparatus according to claim 1 , wherein the low-reflective pattern is configured to overlap at least one portion of the anode contact unit.

7. The organic light emitting display apparatus according to claim 1 , wherein the anode contact unit is connected to the thin film transistor through contact holes,
wherein the contact holes are evenly spaced from each other.

8. The organic light emitting display apparatus according to claim 7 , wherein the anode of the subpixels does not match the contact hole, and
wherein the anode contact unit extends from the anode to the contact hole.

9. The organic light emitting display apparatus according to claim 7 , wherein the subpixels comprises a red subpixel, a green subpixel and a blue subpixel,
wherein the blue subpixel is repeatedly disposed in a first direction,
wherein the red subpixel and the green subpixel are alternately disposed in a second direction,
wherein the contact hole is repeatedly disposed along a line extending in the second direction, the line being disposed between the red subpixel and the green subpixel, and
wherein the anode contact unit extends from the anode of each subpixel to the respective contact hole.

10. The organic light emitting display apparatus according to claim 7 , wherein the subpixels comprises a red subpixel, a green subpixel and a blue subpixel,
wherein the red subpixel, the green subpixel and the blue subpixel are alternately disposed in a first direction as a pentile structure,
wherein the contact hole is repeatedly disposed along a line extending in the first direction, and
wherein the anode contact unit extends from the anode of each subpixel to the respective contact hole.

11. The organic light emitting display apparatus according to claim 7 , wherein the subpixels comprises a red subpixel, a green subpixel and a blue subpixel,
wherein the red subpixel, the green subpixel and the blue subpixel are alternately disposed to zigzag in a first direction as a diamond pentile structure,
wherein the contact hole is repeatedly disposed along a line extending in the first direction, and
wherein the anode contact unit extends from the anode of each subpixel to the respective contact hole.

12. The organic light emitting display apparatus according to claim 1 , wherein the low-reflective pattern is disposed only in a pixel area, the organic light emitting unit being disposed in the pixel area.

13. The organic light emitting display apparatus according to claim 1 , further comprising an auxiliary electrode electrically connected to the cathode,
wherein the low-reflective pattern is disposed such that ambient light reflected from the auxiliary electrode is configured to be absorbed by the low-reflective pattern.

14. The organic light emitting display apparatus according to claim 1 , further comprising an adhesive layer covering the low-reflective pattern.

15. The organic light emitting display apparatus according to claim 1 , further comprising a touch panel on the adhesive layer.

16. The organic light emitting display apparatus according to claim 1 , further comprising an initial line formed of the same material as the anode,
wherein the low-reflective pattern is configured to overlap at least a portion of the initial line.

17. The organic light emitting display apparatus according to claim 1 , wherein the low-reflective pattern is spaced apart by a predetermined distance from the organic emission layer and is configured to cover at least a portion of the anode.

Assignees

• Lg Display Co Ltd

Inventors

• Choi Bongki

Classifications

• 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

• G06F1/1626

  with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs] · CPC title

• H01L27/3218

  Electricity · mapped topic

• H01L27/3216

  Electricity · mapped topic

• H01L27/323

  Electricity · mapped topic