Array substrate and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-10007156-B2
Application number	US-201514914619-A
Country	US
Kind code	B2
Filing date	Dec 22, 2015
Priority date	Sep 24, 2015
Publication date	Jun 26, 2018
Grant date	Jun 26, 2018

Abstract

The present invention provides an array substrate and a manufacturing method thereof. The array substrate of the present invention includes: a base plate ( 1 ), a TFT layer ( 2 ) arranged on the base plate ( 1 ), a quantum dot layer ( 3 ) arranged on the TFT layer ( 2 ), and a protective filter layer ( 4 ) arranged on the quantum dot layer ( 3 ). The arrangement of the quantum dot layer ( 3 ) helps compensate the insufficiency of color displaying of an existing color filter layer and expands the range of color gamut. The arrangement of the protective filter layer ( 4 ) helps overcome the issues of poor efficiency and stability of the prior art quantum dot.

First claim

What is claimed is:

1. An array substrate, comprising: a base plate, a thin-film transistor (TFT) layer arranged on the base plate, a quantum dot layer arranged on the TFT layer, and a protective filter layer arranged on the quantum dot layer;
wherein the protective filter layer form dense protection to the quantum dot layer and also provides an effect of light filtering, so as to prevent ultraviolet light or blue light within a predetermined waveband from transmitting therethrough.

2. The array substrate as claimed in claim 1 , wherein the quantum dot layer contains therein quantum dots that comprises nanometer particles formed of one or multiple of semiconductors comprising elements of IIB-VIA group, semiconductors comprising elements of IIIA-VA group, and carbon quantum dot, the quantum dots having a stable diameter of 0-20 nm.

3. The array substrate as claimed in claim 1 , wherein the quantum dot layer emits light having a color of red, green, blue, yellow, and purple or a combination of multiple ones thereof.

4. The array substrate as claimed in claim 1 , wherein the protective filter layer is formed of a material comprising one of silicon nitride, silicon oxide, indium tin oxide, polyimide, and polyfluorene derivatives.

5. The array substrate as claimed in claim 1 , wherein the protective filter layer comprises a color filter layer formed thereon.

6. An array substrate, comprising: a base plate, a thin-film transistor (TFT) layer arranged on the base plate, a quantum dot layer arranged on the TFT layer, and a protective filter layer arranged on the quantum dot layer;
wherein the protective filter layer form dense protection to the quantum dot layer and also provides an effect of light filtering, so as to prevent ultraviolet light or blue light within a predetermined waveband from transmitting therethrough;
wherein the quantum dot layer contains therein quantum dots that comprises nanometer particles formed of one or multiple of semiconductors comprising elements of IIB-VIA group, semiconductors comprising elements of IIIA-VA group, and carbon quantum dot, the quantum dots having a stable diameter of 0-20 nm;
wherein the quantum dot layer emits light having a color of red, green, blue, yellow, and purple or a combination of multiple ones thereof; and
wherein the protective filter layer is formed of a material comprising one of silicon nitride, silicon oxide, indium tin oxide, polyimide, and polyfluorene derivatives.

7. The array substrate as claimed in claim 6 , wherein the protective filter layer comprises a color filter layer formed thereon.

Assignees

• Shenzhen China Star Optoelect

Inventors

• Cheng Xiaoping
• Lee Yungjui

Classifications

• G02F1/133617

  Illumination with ultraviolet light; Luminescent elements or materials associated to the cell · CPC title

• G02F1/1362 Primary

  Active matrix addressed cells {(G02F1/134336, G02F1/134363 take precedence)} · CPC title

• G02F2201/086

  UV absorbing · CPC title

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G02F2202/36

  Micro- or nanomaterials · CPC title