Organic light emitting display device

Patent metadata

Field	Value
Publication number	US-9583553-B2
Application number	US-201514830097-A
Country	US
Kind code	B2
Filing date	Aug 19, 2015
Priority date	Feb 13, 2015
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

An organic light emitting display device includes a substrate a plurality of pixels disposed along a first direction and a second direction, the first direction and the second direction being substantially parallel to a top surface of the substrate and substantially perpendicular to each other, first wirings which is disposed on the substrate, extends in the first direction, and includes a first low voltage power line, and second wirings which is disposed on the substrate, extends in the second direction, and includes a second low voltage power line electrically connected to the first low voltage power line.

First claim

What is claimed is:

1. An organic light emitting display device comprising:
a substrate;
a plurality of pixels disposed along a first direction and a second direction, the first direction and the second direction being substantially parallel to a top surface of the substrate and substantially perpendicular to each other;
first wirings which are disposed on the substrate, extend in the first direction, and include a first low voltage power line; and
second wirings which are disposed on the substrate, extend in the second direction, and include a second low voltage power line electrically connected to the first low voltage power line.

2. The organic light emitting display device of claim 1 , wherein the first wirings further include data lines, a first initialization voltage line, and a first high voltage power line.

3. The organic light emitting display device of claim 2 , wherein the second wirings further include:
a second initialization voltage line electrically connected to the first initialization voltage line; and
a second high voltage power line electrically connected to the first high voltage power line.

4. The organic light emitting display device of claim 3 , wherein the first low voltage power line, the first initialization voltage line and the first high voltage power line are disposed in correspondence with each of the plurality of pixels.

5. The organic light emitting display device of claim 3 , wherein the plurality of pixels include a (3n-2)th pixel, a (3n-1)th pixel and a (3n)th pixel which are sequentially arranged along the second direction, where n is an integer greater than 0.

6. The organic light emitting display device of claim 5 , wherein the first low voltage power line is disposed in correspondence with at least one pixel among the (3n-2)th pixel, the (3n-1)th pixel and the (3n)th pixel,
the first initialization voltage line is disposed in correspondence with at least one pixel among the (3n-2)th pixel, the (3n-1)th pixel and the (3n)th pixel, and
the first high voltage power line is disposed in correspondence with at least one pixel among the (3n-2)th pixel, the (3n-1)th pixel and the (3n)th pixel.

7. The organic light emitting display device of claim 5 , wherein the first low voltage power line is disposed in correspondence with at least two pixels among the (3n-2)th pixel, the (3n-1)th pixel and the (3n)th pixel,
the first initialization voltage line is disposed in correspondence with at least two pixels among the (3n-2)th pixel, the (3n-1)th pixel and the (3n)th pixel, and
the first high voltage power line is disposed in correspondence with at least two pixels among the (3n-2)th pixel, the (3n-1)th pixel and the (3n)th pixel.

8. The organic light emitting display device of claim 3 , wherein the plurality of pixels an odd-numbered pixel and an even-numbered pixel which are sequentially arranged along the second direction.

9. The organic light emitting display device of claim 8 , wherein the first low voltage power line is disposed in correspondence with one of the odd-numbered pixel and the even-numbered pixel,
the first initialization voltage line is disposed in correspondence with one of the odd-numbered pixel and the even-numbered pixel, and
the first high voltage power line is disposed in correspondence with the odd-numbered pixel and the even-numbered pixel.

10. The organic light emitting display device of claim 8 , wherein the first low voltage power line is disposed in correspondence with the odd-numbered pixel and the even-numbered pixel,
the first initialization voltage line is disposed in correspondence with one of the odd-numbered pixel and the even-numbered pixel, and
the first high voltage power line is disposed in correspondence with one of the odd-numbered pixel and the even-numbered pixel.

11. The organic light emitting display device of claim 8 , wherein the first low voltage power line is disposed in correspondence with one of the odd-numbered pixel and the even-numbered pixel,
the first initialization voltage line is disposed in correspondence with the odd-numbered pixel and the even-numbered pixel, and
the first high voltage power line is disposed in correspondence with one of the odd-numbered pixel and the even-numbered pixel.

12. The organic light emitting display device of claim 1 , wherein each of the plurality of pixels a first sub-pixel, a second sub-pixel, a third sub-pixel and a transmission portion.

13. The organic light emitting display device of claim 12 , wherein each of the first sub-pixel, the second sub-pixel and the third sub-pixel includes a pixel circuit, and
wherein the pixel circuit includes a storage capacitor, a light emitting diode and at least six transistors.

14. The organic light emitting display device of claim 13 , wherein the light emitting diode includes a first electrode, an organic light emitting layer and a second electrode, and
wherein the first electrode, the organic light emitting layer and the second electrode are sequentially stacked.

15. The organic light emitting display device of claim 14 , wherein the second electrode is electrically connected to the first low voltage power line and the second low voltage power line.

16. The organic light emitting display device of claim 14 , wherein the second electrode is disposed in the first sub-pixel, the second sub-pixel and the third sub-pixel, and
wherein the second electrode exposes the transmission portion.

17. The organic light emitting display device of claim 14 , wherein the first sub-pixel, the second sub-pixel and the third sub-pixel are spaced apart from one another, and are sequentially disposed along the second direction, and
wherein the transmission portion is spaced apart from the first through third sub-pixels, and is disposed along the first direction from the first through third sub-pixels.

18. The organic light emitting display device of claim 14 , wherein a transmittance of the transmission portion is higher than those of the first sub-pixel, the second sub-pixel and the third sub-pixel, and
wherein the first wirings and the second wirings are separated from the transmission portion.

19. The organic light emitting display device of claim 13 , wherein each of the transistors includes an active pattern, a gate electrode, a source electrode and a drain electrode, and
wherein the second low voltage power line includes a same material as that of the active pattern.

20. The organic light emitting display device of claim 19 , wherein the first low voltage power line includes a same material as that of the source electrode and the drain electrode.

Assignees

• Samsung Display Co Ltd

Inventors

• Park Gyung-Soon
• Kim Keum-Nam
• Jeong Min-Jae

Classifications

• H10K59/35

  comprising red-green-blue [RGB] subpixels · CPC title

• H10K59/1216

  the pixel elements being capacitors · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title

• G09G3/20 Primary

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title

• G09G3/3225

  using an active matrix · CPC title