Display device having a spacer

Patent metadata

Field	Value
Publication number	US-9412968-B2
Application number	US-201213450927-A
Country	US
Kind code	B2
Filing date	Apr 19, 2012
Priority date	Jun 9, 2011
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

A display device includes a first substrate having a plurality of pixel regions separated by a non-pixel region; a second substrate facing the first substrate; and a spacer disposed between the first substrate and the second substrate to maintain a gap between the first substrate and the second substrate. The pixel regions include a first pixel region and a second pixel region which neighbor each other, the non-pixel region between the first pixel region and the second pixel region is bisected into a first non-pixel region adjacent to the first pixel region and a second non-pixel region adjacent to the second pixel region, and the spacer is formed on the non-pixel region between the first pixel region and the second pixel region. An area of the first non-pixel region occupied by the spacer is smaller than an area of the second non-pixel region occupied by the spacer.

First claim

What is claimed is:

1. A display device, comprising:
a first substrate comprising a plurality of pixel regions separated by a non-pixel region;
a second substrate spaced apart from and facing the first substrate; and
a spacer disposed between the first substrate and the second substrate and maintaining a gap between the first substrate and the second substrate,
the pixel regions comprising a first pixel region and a second pixel region which neighbor each other, the first pixel region emitting light having a first color and the second pixel region emitting light having a second color different from the first color, the non-pixel region that is disposed between the first pixel region and the second pixel region being bisected into a first non-pixel region adjacent to the first pixel region and a second non-pixel region adjacent to the second pixel region,
the spacer being formed on the non-pixel region that is disposed between the first pixel region and the second pixel region, and an area of the first non-pixel region occupied by the spacer being smaller than an area of the second non-pixel region occupied by the spacer,
wherein the pixel regions comprise a plurality of red, green and blue pixel regions,
the first pixel region is one of the red pixel regions, and
the second pixel region is any one selected from one of the blue and green pixel regions.

2. The display device of claim 1 , wherein a boundary between the first non-pixel region and the second non-pixel region is substantially parallel to a boundary between the first pixel region and the first non-pixel region and a boundary between the second pixel region and the second non-pixel region.

3. The display device of claim 1 , wherein a shortest distance from an arbitrary point on the first non-pixel region to the first pixel region is shorter than a shortest distance from the arbitrary point to the second pixel region.

4. The display device of claim 1 , wherein the spacer is separated from the first pixel region.

5. The display device of claim 4 , wherein the spacer is separated from the second pixel region, and a distance from the spacer to the first pixel region is greater than a distance from the spacer to the second pixel region.

6. The display device of claim 1 , wherein a distance from the spacer to a boundary of the first pixel region is different from a distance from the spacer to a boundary of the second pixel region with the boundary of the second pixel region neighboring the boundary of the first pixel region.

7. The display device of claim 6 , wherein the pixel regions comprise a plurality of red, green and blue pixel regions, wherein the first pixel region is one of the red pixel regions, and the second pixel region is any one selected from the blue and green pixel regions, wherein the distance by which the spacer is separated from the boundary of the first pixel region is greater than the distance by which the spacer is separated from the boundary of the second pixel region with the boundary of the second pixel region neighboring the boundary of the first pixel region.

8. The display device of claim 1 , further comprising a pixel defined layer disposed on the non-pixel region of the first substrate and comprising a plurality of apertures which expose the pixel regions, respectively.

9. The display device of claim 8 , wherein the spacer protrudes from the pixel defined layer toward the second substrate.

10. The display device of claim 1 , wherein the spacer is any one of a prismoid, a cylinder, a prism, a dome, and a spheroid.

11. The display device of claim 1 , wherein the pixel regions comprise a plurality of red, green and blue pixel regions and are arranged in a matrix.

12. The display device of claim 11 , wherein the pixel regions comprise:
a first pixel column in which the blue pixel regions are successively arranged;
a second pixel column which is parallel to the first pixel column and in which the red pixel regions are successively arranged; and
a third pixel column which is parallel to the second pixel column and in which the green pixel regions are successively arranged.

13. The display device of claim 12 , wherein the first pixel region is one of the pixel regions of the second pixel column, the second pixel region is a pixel region which neighbors the first pixel region and is disposed in the first pixel column or the third pixel column, and the spacer is formed on the non-pixel region disposed between the first pixel region and the second pixel region.

14. The display device of claim 11 , wherein the pixel regions comprise:
a first pixel column in which the blue pixel regions and the red pixel regions are alternately arranged; and
a second pixel column which is parallel to the first pixel column and in which the green pixel regions are successively arranged.

15. The display device of claim 14 , wherein the first pixel region is one of the red pixel regions of the first pixel column, the second pixel region is a blue or green region which neighbors the first pixel region, and the spacer is formed on the non-pixel region between the first pixel region and the second pixel region.

16. A display device, comprising:
a first substrate comprising a plurality of pixel regions separated by a non-pixel region;
a second substrate spaced apart from and facing the first substrate; and
a spacer disposed between the first substrate and the second substrate to maintain a gap between the first substrate and the second substrate,
the pixel regions comprising a first pixel region and a second pixel region which neighbor each other,
the spacer being formed on the non-pixel region that is disposed between the first pixel region and the second pixel region, and
a distance from the spacer to the first pixel region being greater than a distance from the spacer to the second pixel region,
wherein the pixel regions comprise a plurality of red, green and blue pixel regions, and
the first pixel region is one of the red pixel regions, and
the second pixel region is any one selected from the blue and green pixel regions.

17. The display device of claim 16 , wherein the non-pixel region disposed between the first pixel region and the second pixel region is bisected into a first non-pixel region adjacent to the first pixel region and a second non-pixel region adjacent to the second pixel region, and
the spacer occupies different sized areas of the first non-pixel region and the second non-pixel region.

18. The display device of claim 16 , wherein the pixel regions comprise a plurality of red, green and blue pixel regions and are arranged in a matrix, and the pixel regions comprise:
a first pixel column in which the blue pixel regions and the red pixel regions are alternately arranged; and
a second pixel column which is parallel to the first pixel column and in which the green pixel regions are successively arranged.

19. The display device of claim 18 , wherein the first pixel region is one of the red pixel regions of the first pixel column, the second pixel region is a blue or green region which neighbors the first pixel region, and the spacer is formed on the non-pixel region disposed between the first pixel region and the second pixel region.

Assignees

• Kim Han-Soo
• Samsung Display Co Ltd

Inventors

• Kim Han-Soo

Classifications

• H10K59/8723 Primary

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title

• H10K50/8428

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title

• H10K59/122 Primary

  Pixel-defining structures or layers, e.g. banks · CPC title

• H01L51/525 Primary

  Electricity · mapped topic

• H01L27/3211

  Electricity · mapped topic