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QDCF, processing method thereof and application

A black matrix and substrate technology, applied in its processing method and application, QDCF field, can solve the problems that cannot be further improved or restrict the light conversion efficiency of QDCF, so as to improve the light conversion efficiency of QDCF, improve the light conversion efficiency, and improve the viscosity Effect

Inactive Publication Date: 2017-12-19
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the performance of QDCF, if the thickness of the pixel layer 3 is to be increased, the thickness of the black matrix needs to be increased accordingly, and the material of the black matrix in the QDCF currently used, when the width of the black matrix is ​​constant, the thickness can reach The maximum value will also be a fixed value. For example, the width of the black matrix in QDCF is 26 μm, and the maximum thickness can reach 2 μm, which cannot be further improved, which restricts the further improvement of the light conversion efficiency of QDCF

Method used

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  • QDCF, processing method thereof and application
  • QDCF, processing method thereof and application
  • QDCF, processing method thereof and application

Examples

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preparation example Construction

[0054] as attached image 3 As shown, the embodiment of the present application also provides a method for preparing a black matrix composition, which is used to prepare a black matrix composition, and the preparation method includes the following steps:

[0055] S21: Mix photosensitizer, surfactant, film-forming resin and solvent to form dispersion system.

[0056] Specifically, each component is selected according to the weight ratio of each component in the composition given in the above examples, and the photosensitizer, surfactant, film-forming resin and solvent are mixed to form a dispersion system. The order of mixing is not specifically limited, and can be selected arbitrarily according to actual operation. Preferably, the photosensitizer, surfactant, film-forming resin and solvent are mixed by ultrasound for 1-3 hours. Ultrasonic mixing is the use of ultrasonic vibration for mixing, which can effectively save mixing time and improve the uniformity of mixing. The po...

Embodiment 1

[0061] Preparation of black matrix composition:

[0062] Get 6g photosensitizer, 15g black pigment, 2g tensio-active agent, 70g film-forming resin and 115g solvent, wherein, photosensitizer selects gram porphyrin for use, black pigment selects C54 for use, tensio-active agent selects solsperse 20000 for use, comprises benzene in the film-forming resin Copolymer 38g of ethylene and maleic acid half ester, other components select novolak resin in the film-forming resin, solvent selects ethylene glycol for use;

[0063] Add the above-mentioned photosensitizer, surfactant, film-forming resin and solvent into the mixing container, and ultrasonically mix for 1.5 hours to form a dispersion system;

[0064] The black pigment was added to the above dispersion system, and 50 g of zirconium beads were added therein, and ball milled and mixed for 3 hours to prepare a composition for QDCF substrate thick-layer black matrix.

[0065] Preparation of QDCF:

[0066] The composition prepared ...

Embodiment 2

[0072] Preparation of black matrix composition:

[0073] Get 5g photosensitizer, 17g black pigment, 1.5g surfactant, 80g film-forming resin and 120g solvent, wherein, photosensitizer selects gram porphyrin for use, black pigment selects C54 for use, surfactant selects solsperse 8200 for use, and film-forming resin includes 4-(2-hydroxyhexafluoroisopropene)-styrene and styrene copolymer 48g, other components in the film-forming resin select novolac resin, solvent selects ethylene glycol;

[0074] Add the above-mentioned photosensitizer, surfactant, film-forming resin and solvent into the mixing container, and ultrasonically mix for 2 hours to form a dispersion system;

[0075] The black pigment was added to the above dispersion system, and 50 g of zirconium beads were added therein, and ball milled and mixed for 2.5 hours to prepare a composition for QDCF substrate thick-layer black matrix.

[0076] Preparation of QDCF:

[0077] The composition prepared above was spin-coated ...

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Abstract

The invention discloses a QDCF, a processing method thereof and application. The QDCF comprises a substrate body, a pixel layer and a black matrix, wherein the pixel layer and the black matrix are arranged on the substrate. The black matrix is made of black matrix composition. The black matrix composition comprises following components, by weight, of 2-4 parts of photosensitizer, 2-9 parts of black pigments, 0.7-1.4 parts of surfactants, 19-46 parts of film forming resin and 50-73 parts of solvent. The film forming resin comprises the styrol copolymer whose molecular weight is 5000-50000. According to the invention, the width of the black matrix meets use requirements; the thickness can reach 10 [mu]m; the requirement of further improving light conversion efficiency of the QDCF by changing the thickness of the pixel layer can be completely met; and further improving of the light conversion efficiency of the QDCF is facilitated.

Description

technical field [0001] This application relates to the field of display technology, in particular to a QDCF, its processing method and application. Background technique [0002] QDCF (Quantum Dots Color Filter, Quantum Dots Color Filter) is usually applied to display screens. figure 1 It is a schematic diagram of the basic structure of a typical QDCF in the prior art. Such as figure 1 As shown, the QDCF includes a substrate body 1, a black matrix 2, and a pixel layer 3. The black matrix 2 and the pixel layer 3 form a grid-like structure covering the substrate body 1. The black matrix 2 is made of black matrix materials, and the pixel layer 3 is made of Made of quantum dot material, the quantum dot material includes luminescent quantum dots, and the luminescent quantum dots are used to absorb blue excitation light for light conversion. The black matrix 2 is a grid-like skeleton carrying the pixel layer 3. Quantum dot materials are arranged in the grid of the black matrix 2...

Claims

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Application Information

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IPC IPC(8): G02B5/22G03F7/20
CPCG02B5/223G03F7/70216
Inventor 岳春波宋志成刘振国刘卫东
Owner HISENSE VISUAL TECH CO LTD