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Cross-linkable quantum dot and preparation method thereof, array substrate and preparation method of array substrate

An array substrate and quantum dot technology, which is applied in the field of cross-linkable quantum dots and its preparation, can solve problems such as difficult to meet, and achieve the effect of improving utilization rate and process yield

Active Publication Date: 2016-05-04
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, in order to improve the resolution of OLED, it is necessary to further reduce the line width of the Mask process by making the OLED evaporation mask, and require higher-precision printing nozzles, etc., which are often difficult to meet in the large-scale production process.

Method used

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  • Cross-linkable quantum dot and preparation method thereof, array substrate and preparation method of array substrate
  • Cross-linkable quantum dot and preparation method thereof, array substrate and preparation method of array substrate
  • Cross-linkable quantum dot and preparation method thereof, array substrate and preparation method of array substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] This example relates to a method for preparing cross-linkable quantum dots of various colors.

[0109] Preparation of cross-linkable green quantum dots using green quantum dot raw materials:

[0110] The green quantum dot raw material (its trade name is green quantum dot, purchased from Guangdong Pujiafu Photoelectric Technology Co., Ltd. The quantum dot raw material is synthesized according to the traditional heat injection method, and the ligands it has include trioctylphosphine, trioctyl Ligands such as phosphine oxide, oleylamine, oleic acid) and pyridine were contacted with stirring under ambient conditions for 2 hours at a weight ratio of 1:5, thereby replacing the ligand of the quantum dot raw material with pyridine; then by centrifugation method to separate quantum dots with pyridine. Then, the quantum dots with pyridine react with the cross-linking ligand raw materials (mercaptoacetic acid and 1-cyclohexene-1-acetic acid, purchased from Aladdin reagent network...

Embodiment 2

[0118] This example discloses a method for preparing monofunctional cross-linkable quantum dots of various colors. This method is similar to embodiment 1, the difference is:

[0119]The quantum dot feedstock (such as the quantum dot feedstock used in Example 1, such as the green quantum dot feedstock, blue quantum dot feedstock, and red quantum dot feedstock) was contacted with pyridine in a weight ratio of 1:5 under ambient conditions under stirring 2 hours, thereby replacing the ligand of the quantum dot raw material with pyridine; and then separating the quantum dots with pyridine by centrifugation and other methods. Then, react the quantum dots with pyridine with the cross-linking ligand raw material (thioglycolic acid, purchased from Aladdin Reagent Network Co., Ltd.) with monofunctional groups, so that pyridine is replaced with ligands with monofunctional groups, thereby obtaining monofunctional Functional group cross-linkable quantum dots. The monofunctional cross-lin...

Embodiment 3

[0123] This embodiment relates to a method for preparing green cross-linkable quantum dots sensitive to I line.

[0124] The green quantum dot raw material (its trade name is green quantum dot, purchased from Guangdong Pujiafu Optoelectronics Technology Co., Ltd. The green quantum dot raw material is synthesized according to the traditional heat injection method, and the ligands it carries include trioctylphosphine, three Ligands such as octylphosphine oxide, oleylamine, oleic acid) and pyridine were contacted under ambient conditions with stirring for 2 hours with a weight ratio of 1:5, thereby replacing the ligand of the green quantum dot raw material into pyridine; The quantum dots with pyridine are separated by methods such as centrifugation. Then, the quantum dots with pyridine were combined with the cross-linking ligand raw materials with two functional groups (which can be tert-butoxycarbonyl protected-C-methylcalixarene[4] with carboxyl group and diphenyl Iodine (9,10...

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Abstract

The invention provides a cross-linkable quantum dot (QD) and a preparation method thereof, an array substrate prepared by the cross-linkable quantum dot (QD) and the preparation method of the array substrate. The surface of the cross-linkable quantum dot is provided with a group pair R1 and R2 which can react to form a cross-linked network, or the surface of the cross-linkable quantum dot is provided with a group R3 which can be cross-linked by a cross-linking agent to form the cross-linked network.

Description

technical field [0001] The present application relates to a crosslinkable quantum dot (QD) and a preparation method thereof, an array substrate prepared by using the crosslinkable quantum dot (QD) and a preparation method of the array substrate. Background technique [0002] Active Matrix Organic Light Emitting Diode (AMOLED) was once recognized as a promising next-generation display to replace Liquid Crystal Display (LCD), but with the improvement of consumers' consumption level, high-resolution products have become the key development direction of display products. However, it is difficult for high-resolution AMOLED products to compete with LCDs. This is because the organic layer structure of organic light-emitting displays is usually prepared by mask evaporation. Small-area light emission cannot precisely control the defects in the evaporation area, so it cannot meet the rapidly developing demand for high-resolution display; and the resolution of the organic light-emittin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/52H01L51/54H01L51/56H01L27/12H01L21/77H01L27/32H10K99/00
CPCH01L21/77H01L27/12H10K85/00G03F7/0007G03F7/0047G03F7/105Y02E10/549H10K59/35H10K59/38H10K71/233H10K85/115H10K85/151H10K85/1135H10K85/60H10K50/115H10K85/50H10K30/35H10K50/00H10K50/80H10K59/00H10K71/00H10K85/30H10K85/321H10K85/381H10K85/111G03F7/094G03F7/162G03F7/2002G03F7/2022G03F7/26
Inventor 李延钊陈卓何月娣孙杰
Owner BOE TECH GRP CO LTD
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