Display device

Patent metadata

Field	Value
Publication number	US-2025040343-A1
Application number	US-202418915541-A
Country	US
Kind code	A1
Filing date	Oct 15, 2024
Priority date	Jan 17, 2020
Publication date	Jan 30, 2025
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 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; 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
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 width of the light blocking layer in the first area in a first direction is different from a width of the pixel defining layer in the first area in a first direction, and a thickness of the thin film encapsulation layer in a first area is different from a thickness of the thin film encapsulation layer in a second area.

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 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 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 light blocking 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

• 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