Display device

Patent metadata

Field	Value
Publication number	US-2022181593-A1
Application number	US-202217678576-A
Country	US
Kind code	A1
Filing date	Feb 23, 2022
Priority date	Jan 17, 2020
Publication date	Jun 9, 2022
Grant date	—

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 display panel including a first area in which first pixels are defined and a second area in which second pixels are defined; the display panel comprising:
a light emitting element layer including a first pixel defining layer defining a light emitting area of the first pixel;
a thin film encapsulation layer covering the light emitting element layer;
a sensing layer disposed on the thin film encapsulation layer, and including:
sensing electrodes;
a first insulating layer;
a second insulating layer disposed on the first insulating layer; and
a planarization layer disposed between the first insulating layer and the second insulating layer; and

an antireflection layer disposed on the sensing layer and including a first light blocking layer overlapping the first pixel defining layer; and
an under panel sensor overlapping the first area in a thickness direction, wherein a width of the first light blocking layer in a predetermined direction is less than a width of the first pixel defining layer in the predetermined direction, and a thickness of the thin film encapsulation layer of the first pixel is less than a thickness of the thin film encapsulation layer of the second pixel.

2 . The display device according to claim 1 , wherein the sensing layer further including:
a first conductive layer disposed on the second insulating layer; a second conductive layer disposed on the first conductive layer; and a contact layer disposed between the first conductive layer and the second conductive layer, and the second conductive layer is electrically connected to the first conductive layer through a contact hole passing through the contact layer.

3 . The display device according to claim 2 , wherein the contact layer does not overlap the under panel sensor.

4 . The display device according to claim 2 , wherein the contact layer and the planarization layer include a same material.

5 . The display device according to claim 4 , wherein the contact layer overlaps the under panel sensor.

6 . The display device according to claim 5 , wherein the sensing layer further includes a protective layer disposed between the second conductive layer and the antireflection layer, and
the protective layer includes a material identical to the same material of the contact layer and the planarization layer.

7 . The display device according to claim 1 , wherein a thickness of the planarization layer of the first area is greater than a thickness of the planarization layer of the second 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

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• 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