Display apparatus

Patent metadata

Field	Value
Publication number	US-11910642-B2
Application number	US-202117185867-A
Country	US
Kind code	B2
Filing date	Feb 25, 2021
Priority date	May 6, 2020
Publication date	Feb 20, 2024
Grant date	Feb 20, 2024

Abstract

A display apparatus includes a first substrate, a pixel structure, a second substrate, and an anti-reflection structure. The pixel structure is disposed on the first substrate, and has an active element and a pixel electrode electrically connected to the active element. The second substrate is disposed opposite to the first substrate. The anti-reflection structure is disposed on the second substrate and is located between the first substrate and the second substrate. The anti-reflection structure includes a first insulating layer and a metal layer. The first insulating layer is disposed on the second substrate. The metal layer is disposed on the first insulating layer. The first insulating layer is located between the second substrate and the metal layer. The first insulating layer has an opening, the metal layer has an opening, and the opening of the first insulating layer and the opening of the metal layer overlap with the pixel electrode.

First claim

What is claimed is:

1. A display apparatus, comprising a display panel, wherein the display panel comprises:
a first substrate;
a pixel structure disposed on the first substrate, and comprising an active element, a pixel electrode electrically connected to the active element, an organic electroluminescence pattern disposed on the pixel electrode and a common electrode disposed on the organic electroluminescence pattern;
a second substrate disposed opposite to the first substrate; and
an anti-reflection structure disposed on the second substrate, and being located between the first substrate and the second substrate, wherein the anti-reflection structure comprises:
a first insulating layer disposed on the second substrate; and
a metal layer disposed on the first insulating layer, wherein the first insulating layer is located between the second substrate and the metal layer, the first insulating layer has an opening, the metal layer has an opening, and the opening of the first insulating layer and the opening of the metal layer overlap with the pixel electrode;
wherein the display panel has a light emitting region where the pixel electrode is located,
in the light emitting region, no metal layer is provided between the common electrode and the second substrate.

2. The display apparatus according to claim 1 , wherein a material of the first insulating layer comprises molybdenum oxide or silicon-rich oxide, and a material of the metal layer comprises molybdenum.

3. The display apparatus according to claim 1 , wherein the anti-reflection structure further comprises:
a second insulating layer disposed on the metal layer, wherein the metal layer is located between the first insulating layer and the second insulating layer.

4. The display apparatus according to claim 3 , wherein the second insulating layer has an opening, and the opening of the second insulating layer overlaps with the opening of the metal layer.

5. The display apparatus according to claim 4 , wherein the opening of the second insulating layer and the opening of the metal layer are substantially aligned.

6. The display apparatus according to claim 3 , wherein a material of one of the first insulating layer and the second insulating layer comprises silicon nitride, a material of the other one of the first insulating layer and the second insulating layer comprises silicon-rich oxide, and a material of the metal layer comprises molybdenum.

7. The display apparatus according to claim 3 , wherein a material of the first insulating layer comprises silicon-rich oxide, a material of the metal layer comprises molybdenum, and a material of the second insulating layer comprises silicon-rich oxide.

8. The display apparatus according to claim 1 , wherein a thickness of the metal layer is greater than a thickness of the first insulating layer.

9. The display apparatus according to claim 1 , further comprising:
a protection layer disposed on the anti-reflection structure, and being located between the anti-reflection structure and the first substrate, wherein the protection layer is further disposed in the opening of the first insulating layer and the opening of the metal layer.

10. The display apparatus according to claim 1 , further comprising:
a polarizer disposed on the second substrate of the display panel, wherein the second substrate is located between the polarizer and the anti-reflection structure, the display panel has a first region and a second region, the polarizer covers the first region, and the polarizer does not cover the second region.

Assignees

• Au Optronics Corp

Inventors

• Hung Chun-Cheng
• Wu Zhu-Hang
• Chang Che-Yuan
• Lau Chee-Wai
• Cheng Mao-Hsun

Classifications

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/875

  Arrangements for extracting light from the devices · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K59/8723

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title

• H10K50/865 Primary

  comprising light absorbing layers, e.g. light-blocking layers · CPC title