Display device

Patent metadata

Field	Value
Publication number	US-11061295-B2
Application number	US-201916657442-A
Country	US
Kind code	B2
Filing date	Oct 18, 2019
Priority date	Oct 31, 2018
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

A display device includes a first display area including a plurality of first pixel areas and a second display area including a plurality of second pixel areas and a plurality of light transmitting areas. Each of the plurality of first pixel areas includes at least one first pixel to display an image. Each of the plurality of second pixel areas includes at least one second pixel to display the image. The light transmitting area does not include a pixel capable of displaying the image and has higher light transmittance than the second pixel area. In the second display area, at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a first direction, and at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a second direction different from the first direction.

First claim

What is claimed is:

1. A display device, comprising:
a first display area including a plurality of first pixel areas arranged in an N-by-M matrix with no intermittent light transmitting areas, where N and M are positive integers greater than 1; and
a second display area adjacent to the first display area, the second display area including a plurality of second pixel areas and a plurality of light transmitting areas, wherein
each of the plurality of first pixel areas includes at least one first pixel to display an image,
each of the plurality of second pixel areas includes at least one second pixel to display the image,
each of the light transmitting areas does not include a pixel capable of displaying the image and has higher light transmittance than the second pixel area,
in the second display area, at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a first direction, and at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a second direction different from the first direction,
wherein a driving current for the second display area is larger than a driving current for the first display area such that luminance of the second display area is closer to luminance of the first display area.

2. The display device as claimed in claim 1 , wherein:
the at least one second pixel includes an active pattern, a driving gate electrode, a driving voltage line, a pixel electrode, an emission layer, and a common electrode that are electrically connected to each other for displaying the image, and
each of the light transmitting areas does not include at least part of at least one of the active pattern, the driving gate electrode, the driving voltage line, the pixel electrode, the emission layer, and the common electrode.

3. The display device as claimed in claim 2 , wherein, in the second display area, the plurality of second pixel areas and the plurality of light transmitting areas are alternately arranged in the first direction and the second direction.

4. The display device as claimed in claim 1 , wherein each of the plurality of second pixel areas includes a first color pixel outputting a first color, a second color pixel outputting a second color different from the first color, and a third color pixel outputting a third color different from the first color and the second color.

5. The display device as claimed in claim 4 , wherein the first color pixel, the second color pixel, and the third color pixel have a same shape as each other and are arranged in a line in each of the plurality of second pixel areas.

6. The display device as claimed in claim 4 , wherein each of the plurality of second pixel areas includes one of the first color pixel, one of the second color pixel, and one of the third color pixel.

7. The display device as claimed in claim 4 , wherein at least two of the first color pixel, the second color pixel, and the third color pixel have sizes that are different from each other.

8. The display device as claimed in claim 1 , wherein each of the plurality of second pixel areas includes only one pixel outputting one color.

9. The display device as claimed in claim 1 , wherein a structure of the plurality of first pixel areas is different from a structure of the plurality of second pixel areas or a shape of the plurality of first pixel areas is different from a shape of the plurality of second pixel areas.

10. The display device as claimed in claim 9 , wherein:
each of the first pixel areas and each of the second pixel areas includes a first color pixel outputting a first color, a second color pixel outputting a second color different from the first color, and a third color pixel outputting a third color different from the first color and the second color, and
in each of the first pixel areas, at least two of the first color pixel, the second color pixel, and the third color pixel have sizes that are different from each other.

11. The display device as claimed in claim 10 , wherein the first color pixel, the second color pixel, and the third color pixel have a same shape as each other and are arranged in a line in each of the plurality of second pixel areas.

12. The display device as claimed in claim 10 , wherein the size of the second color pixel in each of the plurality of first pixel areas and the size of the second color pixel in each of the plurality of second pixel areas are different from each other.

13. The display device as claimed in claim 10 , wherein:
in each of the plurality of second pixel areas, the first color pixel, the second color pixel, and the third color pixel include a transistor, respectively, and
in each of the plurality of second pixel areas, a channel length of a channel region of the transistor included in the second color pixel is shorter than a channel length of a channel region of the transistor included in the first color pixel or the third color pixel.

14. The display device as claimed in claim 10 , wherein:
in each of the plurality of second pixel areas, each of the first color pixel, the second color pixel, and the third color pixel includes a transistor, and
in each of the plurality of second pixel areas, a channel width of a channel region of the transistor included in the second color pixel is larger than a channel width of a channel region of the transistor included in the first color pixel or the third color pixel.

15. The display device as claimed in claim 10 , wherein:
the first color pixel and the second color pixel include a transistor, respectively, and
a channel length of a channel region of the transistor included in the second color pixel is shorter than a channel length of a channel region of the transistor included in the first color pixel.

16. The display device as claimed in claim 10 , wherein:
the first color pixel and the second color pixel include a transistor, respectively, and
a channel width of a channel region of the transistor included in the second color pixel is larger than a channel width of a channel region of the transistor included in the first color pixel.

17. A display device, comprising:
a first display area including a plurality of first pixel areas arranged in an N-by-M matrix with no intermittent light transmitting areas, where N and M are positive integers greater than 1; and
a second display area adjacent to the first display area, the second display area including a plurality of second pixel areas and a plurality of light transmitting areas, wherein
each of the plurality of first pixel areas includes at least one first pixel to display an image,
each of the plurality of second pixel areas includes at least one second pixel to display the image,
the light transmitting area does not include a pixel capable of displaying the image and has higher light transmittance than the second pixel area, and
a structure of the first pixel area is different from a structure of the second pixel area, or a shape of the first pixel area is different from a shape of the second pixel area,
wherein a driving current for the second display area is larger than a driving current for the first display area such that luminance of the second display area is closer to luminance of the first display area.

18. The display device as claimed in claim 17 , wherein:
each of the plurality of first pixel areas and each of the plurality of second pixel areas includes a first color pixel outputting a first color, a second color pixel outputting a second color different from the first color, a

Assignees

• Samsung Display Co Ltd

Inventors

• Bang Hyun-Chol
• Kwak Won Kyu
• Kim Dong Wook
• Park Jin Woo
• Kwon Sun-Ja

Classifications

• H10K59/352

  the areas of the RGB subpixels being different · CPC title

• H10K59/8052

  Cathodes · CPC title

• H10K59/8051

  Anodes · CPC title

• H10K59/131

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

• G02F1/136286 Primary

  Wiring, e.g. gate line, drain line · CPC title