Display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-11387301-B2
Application number	US-201916598152-A
Country	US
Kind code	B2
Filing date	Oct 10, 2019
Priority date	Mar 29, 2019
Publication date	Jul 12, 2022
Grant date	Jul 12, 2022

Abstract

A display apparatus includes: a substrate including a component area, a display area, and a middle area provided between the component area and the display area; a thin-film transistor arranged in the display area; a display element including a pixel electrode, an intermediate layer, and an opposite electrode, wherein the pixel electrode is electrically connected to the thin-film transistor; a first organic insulating layer, a second organic insulating layer, and a passivation layer sequentially stacked on each other between the thin-film transistor and the pixel electrode; and a groove arranged in the middle area, wherein the groove divides an organic material layer included in the intermediate layer, wherein the groove is provided in multiple layers including an organic layer and an inorganic layer, wherein the organic layer is arranged on the substrate, and the inorganic layer is stacked on the organic layer.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate comprising a component area, a display area, and a middle area provided between the component area and the display area;
a thin-film transistor arranged in the display area;
a display element comprising a pixel electrode, an intermediate layer, and an opposite electrode, wherein the pixel electrode is electrically connected to the thin-film transistor, wherein the intermediate layer is disposed on the pixel electrode, and wherein the opposite electrode is disposed on the intermediate layer;
a first organic insulating layer, a second organic insulating layer, and a passivation layer sequentially stacked on each other between the thin-film transistor and the pixel electrode; and
a groove arranged in the middle area, wherein the groove divides an organic material layer included in the intermediate layer,
wherein the groove is provided in multiple layers comprising an organic layer and an inorganic layer, wherein the organic layer is arranged on the substrate, and the inorganic layer is stacked on the organic layer,
wherein the organic layer and the inorganic layer are disposed below the opposite electrode, wherein the inorganic layer is a same layer as the passivation layer,
wherein the groove does not vertically overlap the component area, and the groove partitions the first organic insulating layer, the second organic insulating layer, and the passivation layer,
wherein the component area is an area in which a component is located,
wherein the component includes at least one, of a sensor, a camera, a lamp, and a speaker.

2. The display apparatus of claim 1 , wherein
the inorganic layer comprises a portion protruding toward a center of the groove.

3. The display apparatus of claim 1 , wherein
the organic layer comprises a first sub-lower layer and a second sub-lower layer, wherein the first sub-lower layer is a same layer as the second organic insulating layer and the second sub-lower layer is a same layer as the first organic insulating layer.

4. The display apparatus of claim 3 , wherein
an end of the second sub-lower layer adjacent to the groove is covered by the first sub-lower layer.

5. The display apparatus of claim 1 ,
further comprising a thin-film encapsulation layer covering the display area and the middle area on the substrate.

6. The display apparatus of claim 5 , wherein
the thin-film encapsulation layer comprises a first inorganic encapsulation layer, a second inorganic encapsulation layer, and an organic encapsulation layer arranged between the first inorganic encapsulation layer and the second inorganic encapsulation layer.

7. The display apparatus of claim 6 , wherein
the first inorganic encapsulation layer covers an inner wall of the groove that partitions the organic layer and the inorganic layer, wherein the organic encapsulation layer fills an inner space of the groove, and wherein the second inorganic encapsulation layer covers an upper surface of the organic encapsulation layer.

8. The display apparatus of claim 1 , wherein
the intermediate layer comprises a light-emitting layer, a hole transport layer, and an electron transport layer, wherein the light-emitting layer is disposed between the hole transport layer and the electron transport layer, and
wherein the hole transport layer and the electron transport layer are extended and stacked on the inorganic layer.

9. The display apparatus of claim 8 , wherein
at least one of the hole transport layer or the electron transport layer is divided by the groove.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Jaehak
• Seon Jongbaek
• Shin Juncheol
• Choi Jieun

Classifications

• H10K59/8731 Primary

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

• H01L51/5253

  Electricity · mapped topic

• H01L51/0017

  Electricity · mapped topic

• H01L27/3225

  Electricity · mapped topic

• H01L51/56

  Electricity · mapped topic