Display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-11637158-B2
Application number	US-202016992690-A
Country	US
Kind code	B2
Filing date	Aug 13, 2020
Priority date	Nov 18, 2019
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

A display device includes: a substrate; a display area in which a plurality of pixels are arranged over the substrate; and a transmission area arranged inside the display area, where the transmission area is provided to overlap a component below the substrate, and a transparent organic layer including siloxane is arranged in the transmission area.

First claim

What is claimed is:

1. A display device comprising:
a substrate;
a display area including a plurality of pixels arranged over the substrate; and
a transmission area arranged inside the display area, wherein the transmission area is disposed to overlap a component below the substrate,
wherein a transparent organic layer including siloxane is disposed in the transmission area on the substrate,
wherein a groove is defined in the transmission area by removed portions of the substrate, and the groove is filled with the transparent organic layer, and
wherein
the substrate includes a first base layer, a first barrier layer, a second base layer, and a second barrier layer, which are sequentially stacked one on another, and
the groove is defined in the transmission area by removed portions of the second base layer and the second barrier layer or by a removed portion of the second barrier layer.

2. The display device of claim 1 , wherein the transparent organic layer includes a plurality of siloxane layers stacked in a multi-layer structure.

3. The display device of claim 2 , wherein
the pixel in the display area includes a semiconductor layer, a gate electrode, a source electrode, a drain electrode, a pixel electrode, and a pixel-defining layer,
the semiconductor layer is over the substrate,
the gate electrode faces the semiconductor layer,
the source electrode and the drain electrode are connected to the semiconductor layer,
the pixel electrode is connected to the drain electrode with an organic insulating layer therebetween,
the pixel-defining layer surrounds edges of the pixel electrode,
the transparent organic layer includes a central siloxane layer and a top siloxane layer on the central siloxane layer,
the central siloxane layer is arranged on a same layer as a layer on which the organic insulating layer is arranged, and
the top siloxane layer is arranged on a same layer as a layer on which the pixel-defining layer is arranged.

4. The display device of claim 3 , wherein the transparent organic layer further includes a bottom siloxane layer arranged between a bottom surface of the groove and the central siloxane layer.

5. The display device of claim 3 , wherein a surface of the top siloxane layer and a surface of the central siloxane layer are arranged on a same plane such that there is no protruding portion between the top siloxane layer and the central siloxane layer.

6. The display device of claim 3 , wherein a surface of the top siloxane layer is higher than a surface of the central siloxane layer.

7. The display device of claim 6 , wherein a height of the surface of the top siloxane layer is substantially the same as a height of a surface of the pixel-defining layer.

8. The display device of claim 3 , wherein a surface of the central siloxane layer is higher than a surface of the top siloxane layer.

9. The display device of claim 1 , wherein the transparent organic layer includes Si, O, or C-based siloxane.

Assignees

• Samsung Display Co Ltd

Inventors

• Park Gwuihyun
• Hong Pilsoon
• Kim Hyein
• PARK Chulwon
• Sugitani Koichi
• Cho Hyungbin

Classifications

• H10K59/124

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10K59/1201

  Manufacture or treatment · CPC title

• H10K59/12 Primary

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/122 Primary

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

• H10K59/121 Primary

  characterised by the geometry or disposition of pixel elements · CPC title