Display device

Patent metadata

Field	Value
Publication number	US-10146081-B2
Application number	US-201615221880-A
Country	US
Kind code	B2
Filing date	Jul 28, 2016
Priority date	Nov 19, 2015
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

A display device, including a first substrate including at least one pixel, each pixel including first, second, third, and fourth pixels; a second substrate opposing the first substrate; and first, second, and third color filters on the second substrate corresponding to the first, second, and third pixels, respectively, the first, second, and third color filters, respectively, overlapping portions of the fourth pixel, the fourth pixel being adjacent to the first, second, and third color filters.

First claim

What is claimed is:

1. A display device, comprising:
a first substrate including a plurality of pixels, each pixel including first, second, third, and fourth subpixel regions;
a second substrate opposing the first substrate; and
first, second, and third color filters on the second substrate corresponding to the first, second, and third subpixel regions, respectively,
the first, second, and third color filters respectively extend from the first, second, and third subpixel regions to the fourth subpixel region to respectively overlap portions of the fourth subpixel region, the fourth subpixel region being adjacent to the first, second, and third color filters.

2. The display device as claimed in claim 1 , wherein the fourth subpixel region is a transparent subpixel region.

3. The display device as claimed in claim 1 , wherein the fourth subpixel region is a white subpixel region.

4. The display device as claimed in claim 1 , wherein the first, second, and third color filters have different colors from one another, including red, green, blue, yellow, cyan, or magenta.

5. The display device as claimed in claim 1 , wherein an overlapping area between the third color filter and the fourth subpixel region, an overlapping area between the first color filter and the fourth subpixel region, and an overlapping area between the second color filter and the fourth subpixel region are substantially equal to one another.

6. The display device as claimed in claim 1 , wherein an overlapping area between the third color filter and the fourth subpixel region is larger than an overlapping area between the first color filter and the fourth subpixel region, and the overlapping area between the first color filter and the fourth subpixel region is larger than an overlapping area between the second color filter and the fourth subpixel region.

7. The display device as claimed in claim 1 , wherein:
the first, second, and third subpixel regions are red, green, and blue subpixel regions, respectively, and
the first, second, and third color filters are red, green, and blue color filters, respectively.

8. The display device as claimed in claim 7 , wherein the first color filter overlaps a portion of the second subpixel region, the second subpixel region being adjacent to the first color filter.

9. The display device as claimed in claim 7 , wherein the third color filter overlaps a portion of the first subpixel region, the first subpixel region being adjacent to the third color filter.

10. The display device as claimed in claim 1 , further comprising a pixel electrode in each of the first subpixel region, the second subpixel region, the third subpixel region, and the fourth subpixel region.

11. The display device as claimed in claim 10 , wherein the first, second, and third color filters, respectively, overlap portions of the pixel electrode in the fourth subpixel region, the fourth subpixel region being adjacent to the first, second, and third color filters.

12. The display device as claimed in claim 11 , wherein an overlapping area between the pixel electrode in the fourth subpixel region and each of the first, second, and third color filters is in a range of about 4% to about 47% with respect to an area of the pixel electrode in the fourth subpixel region.

13. The display device as claimed in claim 11 , wherein an overlapping area between the third color filter and the pixel electrode in the fourth subpixel region, an overlapping area between the first color filter and the pixel electrode in the fourth subpixel region, and an overlapping area between the second color filter and the pixel electrode in the fourth subpixel region are substantially equal to one another.

14. The display device as claimed in claim 11 , wherein an overlapping area between the third color filter and the pixel electrode in the fourth subpixel region is larger than an overlapping area between the first color filter and the pixel electrode in the fourth subpixel region, and the overlapping area between the first color filter and the pixel electrode in the fourth subpixel region is larger than an overlapping area between the second color filter and the pixel electrode in the fourth subpixel region.

15. The display device as claimed in claim 10 , wherein the pixel electrode includes a conductive material having reflectivity.

16. The display device as claimed in claim 1 , wherein:
the plurality of pixels are arranged in a matrix, the pixels being on the first substrate,
the first, second, third, and fourth subpixel regions are arranged in a 2×2 matrix, and
the first subpixel region and the second subpixel region are sequentially arranged in a first row, and the third subpixel region and the fourth subpixel region are sequentially arranged in a second row, the second row being adjacent to the first row.

17. A display device, comprising:
a first substrate including a plurality of pixels, each pixel including first, second, third, and fourth subpixel regions;
a second substrate opposing the first substrate; and
first, second, and third color filters on the first substrate corresponding to the first, second, and third subpixel regions, respectively,
the first, second, and third color filters respectively extend from the first, second and third subpixel regions to the fourth subpixel region to respectively overlap portions of the fourth subpixel region, the fourth subpixel region being adjacent to the first, second, and third color filters.

18. The display device as claimed in claim 17 , further comprising a pixel electrode in each of the first subpixel region, the second subpixel region, the third subpixel region, and the fourth subpixel region.

19. The display device as claimed in claim 18 , wherein the first, second, and third color filters, respectively, overlap portions of the pixel electrode in the fourth subpixel region, the fourth subpixel region being adjacent to the first, second, and third color filters.

20. The display device as claimed in claim 19 , wherein an overlapping area between the pixel electrode in the fourth subpixel region and each of the first, second, and third color filters is in a range of about 4% to about 47% with respect to an area of the pixel electrode in the fourth subpixel region.

Assignees

• Samsung Display Co Ltd

Inventors

• Park Seunghyun
• Song Junho
• Kim Jihyun

Classifications

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G3/36

  using liquid crystals · CPC title

• G02F1/133514 Primary

  Colour filters · CPC title

• G09G3/2003

  Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title

• G02F2201/52

  RGB geometrical arrangements · CPC title