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Quantum dot diffusion film for Mini Led module and preparation method

A quantum dot and diffusion film technology, applied in the field of quantum dot diffusion film and preparation of MiniLed modules, can solve the problems of affecting the popularization and use, the high price of quantum dots, and the high price of products, so as to avoid glare problems, improve brightness, The effect of reducing usage

Pending Publication Date: 2022-04-08
常州智文光电科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high cost of quantum dots, using them to prepare the entire optical film will make the product expensive and affect the promotion and use

Method used

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  • Quantum dot diffusion film for Mini Led module and preparation method
  • Quantum dot diffusion film for Mini Led module and preparation method

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preparation example Construction

[0020] In yet another aspect, the present invention also provides a method for preparing a quantum dot diffusion film for Mini Led modules, comprising the following steps: after mixing acrylic resin, red quantum dots, green quantum dots and first scattering particles, preparing Get the quantum dot spinning solution; adjust the spinning head of the spinning machine to correspond to the position of the lamp bead, add the quantum dot spinning solution into the spinning machine for spinning to form a quantum dot spinning line, and control the stroke of the spinning head so that The width of each layer of spinning area is continuously reduced, so that the quantum dot spinning line is stacked layer by layer on the surface of the substrate layer and cured by UV to form a hemispherical quantum dot light conversion area; the acrylic resin and the second scattering particles After mixing, a diffusion liquid is obtained; after the diffusion liquid is fed into a spinning machine for spinni...

Embodiment 1

[0030] First, fully mix acrylic resin, red quantum dots, green quantum dots and first scattering particles according to the ratio of 100:3:5:6 to form a quantum dot spinning solution, inject it into the glue barrel of the spinning machine, and set the spinning Spinning starts after the machine spinning position and spinning activity range parameters are set. The quantum dot spinning solution passes through the spinning head to form a spinning thread on the substrate layer 1. The spinning thread is piled up layer by layer according to the program setting, and undergoes continuous UV Solidify to form a quantum dot light conversion area; the spinning machine sets the position of the spinning head to the corresponding position of each Mini LED, and the width of each layer of spinning area is continuously reduced to form a quantum dot light conversion covering each mini LED lamp bead A semi-finished product was prepared in the region; wherein, the particle size of the first scatteri...

Embodiment 2

[0033] First, fully mix acrylic resin, red quantum dots, green quantum dots and first scattering particles at a ratio of 100:1:7:4 to form a quantum dot spinning solution, inject it into the glue barrel of the spinning machine, and set the spinning Spinning starts after the machine spinning position and spinning activity range parameters are set. The quantum dot spinning solution passes through the spinning head to form a spinning thread on the substrate layer 1. The spinning thread is piled up layer by layer according to the program setting, and undergoes continuous UV Solidify to form a quantum dot light conversion area; the spinning machine sets the position of the spinning head to the corresponding position of each Mini LED, and the width of each layer of spinning area is continuously reduced to form a quantum dot light conversion covering each mini LED lamp bead A semi-finished product was prepared in the region; wherein, the particle size of the first scattering particles...

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Abstract

The invention belongs to the technical field of quantum dot diffusion films, and particularly relates to a quantum dot diffusion film for a Mini Led module and a preparation method. The quantum dot diffusion film for the Mini Led module comprises a base material layer, a quantum dot layer and a quantum dot layer, the positions, corresponding to the lamp beads, of the hemispherical quantum dot light conversion areas are attached to the surface of the base material layer in a covering mode. And the diffusion layer wraps the outer layer of the hemispherical quantum dot light conversion area. The center of a Mini LED lamp bead in a liquid crystal module serves as a spinning positioning center point for positioning spinning and layer-by-layer stacking to form hemispherical quantum dot light conversion areas, each hemispherical quantum dot light conversion area covers the lamp bead, light emitted from a Mini LED firstly enters the quantum dot light conversion areas, the backlight utilization rate is the highest, and the light conversion efficiency is improved. And meanwhile, the quantum dot glue only needs to be in the quantum dot light conversion area, the whole film does not need to be coated, the usage amount of quantum dots is reduced, and the cost of the quantum dot diffusion film is saved.

Description

technical field [0001] The invention belongs to the technical field of quantum dot diffusion films, and in particular relates to a quantum dot diffusion film used in Mini Led modules and a preparation method. Background technique [0002] With the rapid development of Mini LED display technology, Mini LED display products have begun to be used in ultra-large-screen high-definition displays, such as monitoring and command, high-definition broadcasting, high-end theaters, medical diagnosis, advertising display, conferences and exhibitions, office displays, virtual reality and other commercial fields . [0003] The use of Mini LED technology with quantum dot diffusion film has shown great commercial application value in the liquid crystal industry. However, due to the high cost of quantum dots, using them to prepare the entire optical film will make the product expensive and affect the popularization and use. Contents of the invention [0004] The invention provides a quant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
Inventor 李智文张万超
Owner 常州智文光电科技有限公司
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