Display device

Patent metadata

Field	Value
Publication number	US-2024215415-A1
Application number	US-202318368016-A
Country	US
Kind code	A1
Filing date	Sep 14, 2023
Priority date	Dec 21, 2022
Publication date	Jun 27, 2024
Grant date	—

Abstract

Provided is a display device including first light-emitting elements activated in a first operation mode and deactivated in a second operation mode, second light-emitting elements activated in the first and second operation modes, a base substrate including a first region having a first light-emitting region where the first light-emitting elements are disposed and a first non-light-emitting region, and a second region adjacent to the first region and having a second light-emitting region where the second light-emitting elements are disposed and a second non-light-emitting region, an encapsulation layer disposed on the base substrate, a first light-blocking pattern not overlapping the first region and overlapping the second non-light-emitting region, a cover layer covering the first light-blocking pattern, and a second light-blocking pattern disposed on the cover layer and overlapping the first light-blocking pattern, wherein the thickness of the cover layer may be greater than the thickness of the encapsulation layer.

First claim

What is claimed is:

1 . A display device comprising:
first light-emitting elements which are activated in a first operation mode and deactivated in a second operation mode; second light-emitting elements which are activated in the first operation mode and activated in the second operation mode; a base substrate including a first region and a second region adjacent to the first region, the first region having a first light-emitting region and a first non-light-emitting region, the first light-emitting elements being disposed in the first light-emitting region, the second region having a second light-emitting region and a second non-light-emitting region, the second light-emitting elements being disposed in the second light-emitting region; an encapsulation layer disposed on the base substrate and covering the first light-emitting elements and the second light-emitting elements; at least one insulation layer disposed on the encapsulation layer; a first light-blocking pattern disposed on the insulation layer, and not overlapping the first region and overlapping the second non-light-emitting region; a cover layer disposed on the insulation layer and covering the first light-blocking pattern; and a second light-blocking pattern disposed on the cover layer and overlapping the first light-blocking pattern, wherein a thickness of the cover layer is greater than a thickness of the encapsulation layer.

2 . The display device of claim 1 , wherein the thickness of the cover layer is equal to or greater than about 10 μm and equal to or less than about 20 μm.

3 . The display device of claim 1 , wherein the thickness of the encapsulation layer is equal to or greater than about 6 μm and equal to or less than about 12 μm.

4 . The display device of claim 1 , further comprising a sensing electrode disposed on the insulation layer, and overlapping the first non-light-emitting region of the first region and the second non-light-emitting region of the second region,
wherein the sensing electrode is disposed on a same layer as the first light-blocking pattern.

5 . The display device of claim 4 , wherein the first light-blocking pattern covers a portion of the sensing electrode overlapping the second region.

6 . The display device of claim 4 , further comprising a protective layer disposed on the insulation layer and the sensing electrode, and including an inorganic material,
wherein a portion of the protective layer is disposed between the sensing electrode and the first light-blocking pattern.

7 . The display device of claim 1 , wherein the second light-emitting region comprises a first element region in which a (2-1)-th light-emitting element configured to provide a first-color light is disposed, a second element region in which a (2-2)-th light-emitting element configured to provide a second-color light is disposed, and a third element region in which a (2-3)-th light-emitting element configured to provide a third-color light is disposed, and
each of the (2-1)-th to (2-3)-th light-emitting elements includes a plurality of sub-light-emitting elements.

8 . The display device of claim 7 , further comprising a first pixel-defining layer which is disposed on the base substrate, and in which openings are defined,
wherein each of the (2-1)-th to (2-3)-th light-emitting elements includes a first electrode, a second electrode, and a light-emitting layer disposed between the first electrode and the second electrode, and the openings of the first pixel-defining layer expose at least a portion of the first electrodes of each of the (2-1)-th to (2-3)-th light-emitting elements.

9 . The display device of claim 8 , further comprising a second pixel-defining layer which is disposed on the first electrodes exposed by the openings, and which overlaps the second non-light-emitting region.

10 . The display device of claim 1 , wherein at least one of the encapsulation layer and the cover layer comprises an organic material.

11 . The display device of claim 1 , wherein a first line width of the first light-blocking pattern is greater than a second line width of the second light-blocking pattern.

12 . The display device of claim 1 , further comprising an anti-reflection layer disposed on the second light-blocking pattern.

13 . A display device comprising:
a base substrate including a light-emitting region and a non-light-emitting region; a light-emitting element disposed on the base substrate; an organic layer disposed as a single layer on the light-emitting element; at least one insulation layer disposed on the organic layer; a first light-blocking pattern disposed on the insulation layer, and overlapping the non-light-emitting region; a cover layer disposed on the insulation layer, and covering the first light-blocking pattern; and a second light-blocking pattern disposed on the cover layer and overlapping the first light-blocking pattern, wherein a thickness of the cover layer is greater than a thickness of the organic layer.

14 . The display device of claim 13 , wherein the thickness of the cover layer is equal to or greater than about 10 μm and equal to or greater than about 20 μm.

15 . The display device of claim 13 , wherein the thickness of the organic layer is equal to or greater than about 6 μm to equal to or less than about 12 μm.

16 . The display device of claim 13 , further comprising a sensing electrode disposed on the insulation layer, and overlapping the non-light-emitting region,
wherein the sensing electrode is disposed on a same layer as the first light-blocking pattern.

17 . The display device of claim 16 , further comprising a protective layer disposed on the insulation layer and the sensing electrode, and including an inorganic material,
wherein a portion of the protective layer is disposed between the sensing electrode and the first light-blocking pattern.

18 . The display device of claim 16 , wherein the light-emitting region comprises a first element region in which a first light-emitting element configured to provide a first-color light is disposed, a second element region in which a second light-emitting element configured to provide a second-color light is disposed, and a third element region in which a third light-emitting element configured to provide a third-color light is disposed,
each of the first to third light-emitting elements includes a plurality of sub-light-emitting elements.

19 . The display device of claim 16 , wherein the first light-blocking pattern is in contact with the sensing electrode.

20 . The display device of claim 13 , wherein the organic layer and the cover layer each comprise an organic material.

Assignees

• Samsung Display Co Ltd

Inventors

• Ji Mi-Ran
• Kim Changwook

Classifications

• H10K59/122

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

• H10K59/40

  OLEDs integrated with touch screens · CPC title

• H10K77/10

  Substrates, e.g. flexible substrates · CPC title

• H10K59/8792 Primary

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

• H10K59/35

  comprising red-green-blue [RGB] subpixels · CPC title