Display panel

Patent metadata

Field	Value
Publication number	US-11961841-B2
Application number	US-202017051285-A
Country	US
Kind code	B2
Filing date	Mar 17, 2020
Priority date	Feb 10, 2020
Publication date	Apr 16, 2024
Grant date	Apr 16, 2024

Abstract

A display panel provided in embodiments of the present disclosure comprises a substrate, at least one metal layer, a darkening layer, and a functional layer, wherein the at least one metal layer is disposed on the substrate, the darkening layer covers the at least one metal layer, and the functional layer covers the darkening layer. An adhesive force of a photoresist to the functional layer is greater than an adhesive force of the photoresist to the darkening layer, and an adhesive force of the functional layer to the darkening layer is greater than the adhesive force of the photoresist to the darkening layer.

First claim

What is claimed is:

1. A display panel, comprising:
a substrate;
at least one metal layer disposed on the substrate;
a darkening layer covering the at least one metal layer; and
a light transmissible functional layer covering the darkening layer;
wherein an adhesive force of a photoresist to the light transmissible functional layer is greater than an adhesive force of the photoresist to the darkening layer, and an adhesive force of the light transmissible functional layer to the darkening layer is greater than the adhesive force of the photoresist to the darkening layer;

a material of the light transmissible functional layer comprises a transparent conductive material, silicon nitride, or a metal; and
the display panel further comprises a protecting layer covering the light transmissible functional layer:,
wherein a thickness of the darkening layer ranges from 30 nm to 150 nm and a thickness of the light transmissible functional layer ranges from 10 nm to 70 nm;
wherein the at least one metal layer comprises two layers, one layer of the metal layer is a gate metal layer and the other layer of the metal layer is a source drain metal layer.

2. The display panel as claimed in claim 1 , wherein a thickness of the protecting layer ranges from 900 Å to 3000 Å.

3. The display panel as claimed in claim 1 , wherein a material of the darkening layer comprises one or any combination of metal oxide, metal nitride, metal oxynitride, molybdenum carbide alloy, and tungsten molybdenum alloy.

4. The display panel as claimed in claim 1 , wherein the at least one metal layer comprises a copper layer, the darkening layer comprises molybdenum oxide, and the light transmissible functional layer comprises indium tin oxide, and wherein the thickness of the darkening layer ranges from 60 nm to 150 nm and the thickness of the light transmissible functional layer ranges from 15 nm to 60 nm.

5. The display panel as claimed in claim 1 , wherein the at least one metal layer comprises a copper layer, the darkening layer comprises molybdenum oxide, and the light transmissible functional layer comprises silicon nitride, the thickness of the darkening layer ranges from 30 nm to 70 nm and the thickness of the light transmissible functional layer ranges from 10 nm to 50 nm.

6. A display panel, comprising:
a substrate;
at least one metal layer disposed on the substrate;
a darkening layer covering the at least one metal layer; and
a light transmissible functional layer covering the darkening layer; and
a protecting layer covering the light transmissible functional layer;
wherein an adhesive force of a photoresist to the light transmissible functional layer is greater than an adhesive force of the photoresist to the darkening layer, and an adhesive force of the light transmissible functional layer to the darkening layer is greater than the adhesive force of the photoresist to the darkening layer;
wherein a thickness of the darkening layer ranges from 30 nm to 150 nm and a thickness of the light transmissible functional layer ranges from 10 nm to 70 nm:,
wherein the at least one metal layer comprises two layers, one layer of the metal layer is a gate metal layer and the other layer of the metal layer is a source drain metal layer.

7. The display panel as claimed in claim 6 , wherein a material of the light transmissible functional layer comprises a transparent conductive material, silicon nitride, or a metal.

8. The display panel as claimed in claim 6 , wherein a thickness of the protecting layer ranges from 900 Å to 3000 Å.

9. The display panel as claimed in claim 6 , wherein a material of the darkening layer comprises one or any combination of metal oxide, metal nitride, metal oxynitride, molybdenum carbide alloy, and tungsten molybdenum alloy.

10. The display panel as claimed in claim 6 , wherein the at least one metal layer comprises a copper layer, the darkening layer comprises molybdenum oxide, and the light transmissible functional layer comprises indium tin oxide, and wherein the thickness of the darkening layer ranges from 60 nm to 150 nm and the thickness of the light transmissible functional layer ranges from 15 nm to 60 nm.

11. The display panel as claimed in claim 6 , wherein the at least one metal layer comprises a copper layer, the darkening layer comprises molybdenum oxide, and the light transmissible functional layer comprises silicon nitride, and wherein the thickness of the darkening layer ranges from 30 nm to 70 nm and the thickness of the light transmissible functional layer ranges from 10 nm to 50 nm.

Assignees

• Tcl China Star Optoelectronics Tech Co Ltd

Inventors

• Yu Xiaoping

Classifications

• H10D86/411 Primary

  characterised by materials, geometry or structure of the substrates · CPC title

• H10D86/0231

  using masks, e.g. half-tone masks · CPC title

• H10D86/60 Primary

  wherein the TFTs are in active matrices · CPC title

• H10D86/441

  Interconnections, e.g. scanning lines · CPC title

• H01L27/1218 Primary

  Electricity · mapped topic