Display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-11705479-B2
Application number	US-202117400354-A
Country	US
Kind code	B2
Filing date	Aug 12, 2021
Priority date	Nov 27, 2018
Publication date	Jul 18, 2023
Grant date	Jul 18, 2023

Abstract

Provided are a display apparatus and a method of manufacturing the same. The display apparatus includes a support substrate, a driving layer provided on the support substrate and including a driving element configured to apply power to a pixel electrode, and a light-emitting layer provided on the driving layer.

First claim

What is claimed is:

1. A display apparatus comprising:
a support substrate;
a driving layer provided on the support substrate and comprising a driving element;
a light-emitting layer comprising a first semiconductor layer, an active layer, and a second semiconductor layer stacked on the driving layer, the light-emitting layer having an ion implantation region configured to divide light emitted from the active layer into a plurality of subpixels;
a first electrode electrically connected to the first semiconductor layer; and
a second electrode electrically connected to the second semiconductor layer.

2. The display apparatus of claim 1 , further comprising a bonding layer provided between the support substrate and the driving layer.

3. The display apparatus of claim 1 , wherein the second electrode comprises a common electrode.

4. The display apparatus of claim 1 , wherein the second electrode comprises a transparent electrode and disposed to cover the second semiconductor layer.

5. The display apparatus of claim 1 , wherein the second electrode comprises:
an opaque electrode; and
a window region configured to transmit light emitted from the active layer.

6. The display apparatus of claim 1 , wherein the second electrode comprises a trench structure provided between adjacent subpixels, among the plurality of subpixels.

7. The display apparatus of claim 6 , wherein the trench structure of the second electrode is configured to reflect light emitted laterally from the active layer.

8. The display apparatus of claim 6 , wherein, in a cross-sectional view, a bottom of the trench structure of the second electrode is above a surface of the active layer facing the second semiconductor layer.

9. The display apparatus of claim 1 , further comprising a plurality of color conversion layers configured to convert light emitted from the light-emitting layer into different color lights.

10. The display apparatus of claim 2 , wherein the bonding layer is provided directly between the support substrate and the driving layer.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Choi Junhee
• Kang Sungjin
• Kong Kiho
• Park Junghun
• Park Jinjoo
• Han Joohun
• Hwang Kyungwook

Classifications

• H10W90/00

  Package configurations · CPC title

• H10D86/40

  characterised by multiple TFTs · CPC title

• H10H20/851

  Wavelength conversion means · CPC title

• H10H20/833

  Transparent materials · CPC title

• H10H20/831

  characterised by their shape · CPC title