Display device

Patent metadata

Field	Value
Publication number	US-12161016-B2
Application number	US-202318117587-A
Country	US
Kind code	B2
Filing date	Mar 6, 2023
Priority date	Jan 17, 2020
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

A display device includes a display panel including an antireflection layer on a light emitting element layer which includes a first pixel defining layer in which an opening defining a light emitting area of a first pixel is defined, and a second pixel defining layer in which an opening defining a light emitting area of a second pixel is defined. The antireflection layer includes first and second light blocking layers respectively overlapping the first and second pixel defining layers, and includes a first gap defined by a length of a predetermined direction from an edge of the opening to an edge of an opening of the first light blocking layer, and a second gap defined by a length from an edge of the opening to an edge of an opening of the second light blocking layer in the predetermined direction. The first gap is less than the second gap.

First claim

What is claimed is:

1. A display device comprising:
a sensor;
a display panel including a first area overlapping the sensor and a second area not overlapping the sensor, the display panel comprising:
a first electrode in the first area;
a second electrode in the second area;
a pixel defining layer including a first opening exposing a portion of the first electrode and a second opening exposing a portion of the second electrode; and
a light blocking layer disposed on the pixel defining layer and including a third opening overlapping the first opening and a fourth opening overlapping the second opening,
wherein a distance between an edge of the first opening and an edge of the third opening in a first direction is different from a distance between an edge of the second opening and an edge of the fourth opening in the first direction.

2. The display device according to claim 1 , further comprising:
a thin film encapsulation layer disposed between the pixel defining layer and the light blocking layer,
wherein a minimum thickness of the thin film encapsulation layer of the first area is less than a minimum thickness of the thin film encapsulation layer of the second area.

3. The display device according to claim 2 , wherein the thin film encapsulation layer further comprises:
a first encapsulation layer;
a second encapsulation layer disposed on the first encapsulation layer; and
a third encapsulation layer disposed between the first encapsulation layer and the second encapsulation layer, and
a minimum thickness of the third encapsulation layer of the first area is less than a minimum thickness of the third encapsulation layer of the second area.

4. The display device according to claim 1 , wherein the distance between an edge of the first opening and an edge of the third opening in the first direction is less that the distance between an edge of the second opening and an edge of the fourth opening in the first direction.

5. The display device according to claim 1 , wherein the first area further includes a light transmitting portion overlapping the sensor.

6. The display device according to claim 5 , wherein the sensor includes an image sensor receiving light provided through the light transmission portion as a camera device.

7. The display device according to claim 1 , further comprising:
a first color filter disposed in the third opening of the light blocking layer, and
a second color filter disposed in the fourth opening of the light blocking layer.

8. The display device according to claim 7 , further comprising:
a first sub pixel emitting a first color;
a second sub pixel emitting a second color; and
a third sub pixel emitting a third color, and
the first color filter comprises:
a first sub color filter overlapping the first sub pixel;
a second sub color filter overlapping the second sub pixel; and
a third sub color filter overlapping the third sub pixel.

9. The display device according to claim 7 , wherein a distance between ends of the light blocking layer adjacent to the first color filter in the first direction is greater than a distance between ends of the light blocking layer adjacent to the second color filter in the first direction.

10. The display device according to claim 1 , further comprising:
first pixels in the first area; and
second pixels in the second area,
wherein the number of the first pixels per unit area is less than a number of the second pixels.

11. The display device according to claim 1 , wherein a size of the first area is less than a size of the second area.

12. The display device according to claim 1 , wherein a width of the first opening of the pixel defining layer in the first direction is substantially identical to a width of the second opening of the pixel defining layer in the first direction.

13. The display device according to claim 12 , wherein a thickness of the pixel defining layer in the second area is greater than a thickness of the pixel defining layer in the first area.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Sun Ho
• Lee Sun Hee
• Kim Gun Hee
• Yang Tae Hoon
• Lee Seung Chan
• Jeon Joo Hee

Classifications

• H10K59/873

  Encapsulations · CPC title

• H10K59/122 Primary

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

• H10K59/8792 Primary

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title