Organic light emitting diode display device

Patent metadata

Field	Value
Publication number	US-9269757-B2
Application number	US-201414536219-A
Country	US
Kind code	B2
Filing date	Nov 7, 2014
Priority date	Dec 30, 2013
Publication date	Feb 23, 2016
Grant date	Feb 23, 2016

Abstract

An organic light emitting diode display device in accordance with various embodiments may include: a pixel region defined by a gate line and a data line and having an emitting area and a transparent area; at least one driving element disposed in the emitting area; a power line overlapping the emitting area and connected to the at least one driving element; a first capacitor electrode disposed in the emitting area and overlapping the power line, wherein the power line and the first capacitor electrode form a first storage capacitor; and a second capacitor electrode disposed in the emitting area and overlapping the first capacitor electrode, wherein the first capacitor electrode and the second capacitor electrode form a second storage capacitor.

First claim

What is claimed is:

1. An organic light emitting diode display device, comprising:
a pixel region defined by a gate line and a data line and including an emitting area and a transparent area;
at least one driving element disposed in the emitting area;
a power line overlapping the emitting area and the transparent area and connected to the at least one driving element;
a first capacitor electrode disposed in the emitting area and overlapping the power line, wherein the power line and the first capacitor electrode form a first storage capacitor, and wherein a width of a portion of the power line overlapping the first capacitor electrode is equal to a width of a portion of the power line overlapping, the transparent area; and
a second capacitor electrode disposed in the emitting area and overlapping the first capacitor electrode, wherein the first capacitor electrode and the second capacitor electrode form a second storage capacitor.

2. The organic light emitting diode display device of claim 1 , wherein the first storage capacitor and the second storage capacitor are connected to the at least one driving element in parallel.

3. The organic light emitting diode display device of claim 1 , wherein the at least one driving element includes a plurality of conductive layers, and
wherein the first capacitor electrode is formed of the same layer and a same material as a first layer of the plurality of conductive layers, and the second capacitor electrode is formed of the same layer and a same material, as a second layer of the plurality of conductive layers.

4. The organic light emitting diode display device of claim 1 , wherein the emitting area is disposed at a side of the transparent area.

5. The organic light emitting diode display device of claim 1 , wherein the transparent area surrounds the emitting area.

6. The organic light emitting diode display device of claim 1 , wherein power line is formed to be parallel to the data line.

7. The organic light emitting diode display device of claim 1 , wherein the emitting area is disposed at a region adjacent to the gate line and the data line.

8. The organic light emitting diode display device of claim 1 , wherein the power line is disposed adjacent to the data line.

9. The organic light emitting diode display device of claim 8 , wherein a distance between the data line and the power line is smaller than a short side of the emitting area.

10. The organic light emitting diode display device of claim 1 , wherein the at least one driving element includes a driving thin film transistor.

11. The organic light emitting diode display device of claim 10 , wherein the first capacitor electrode is formed of the same layer and the same material as a gate electrode of the driving thin film transistor, and the second capacitor electrode is formed of the same layer and the same material as source and drain regions of the driving thin film transistor.

12. The organic light emitting diode display device of claim 10 , wherein the first capacitor electrode is formed of the same layer and the same material as source and drain electrodes of the driving thin film transistor, and the second capacitor electrode is formed of the same layer and the same material as a gate electrode of the driving thin film transistor.

13. The organic light emitting diode display device of claim 1 , wherein the power line is formed of the same layer and the same material as source and drain electrodes of a driving thin film transistor.

14. The organic light emitting diode display device of claim 1 , wherein the power line is formed of the same layer and the same material as an electrode of a light emitting diode disposed in the emitting area.

15. The organic light emitting diode display device of claim 1 , further comprising:
a light emitting diode disposed in the emitting area and connected to the at least one driving element.

16. The organic light emitting diode display device of claim 15 , wherein an area of the light emitting diode is equal to or smaller than the emitting area.

17. The organic light emitting diode display device of claim 15 , further comprising:
a contact hole for connecting the light emitting diode and the at least one driving element,
wherein the contact hole is disposed at an edge portion of the pixel region.

18. The organic light emitting diode display device of claim 1 , wherein the power line is above both the first and second capacitor electrodes, and the first capacitor electrode is above the second capacitor electrode.

Assignees

• Lg Display Co Ltd

Inventors

• Kim Eui-Tae
• Lee Bu-Yeol
• Lee Jae-Myon

Classifications

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title