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Light guide plate with quantum dot diaphragm array and quantum dot site and application of light guide plate

A technology of quantum dot film and light guide plate, applied in the field of light guide plate, can solve the problems of poor color gamut stability and brightness stability, white light color decay, etc., achieves small water and oxygen barrier limit, reduces color decay, and improves normal service life Effect

Active Publication Date: 2018-05-25
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor color gamut stability and luminance stability of existing display devices, the invention provides a light guide plate with a quantum dot film array and quantum dot network points and its application
[0006] The low-dimensional quantum dot film attached to the light incident surface of the light guide plate can be used to replace the existing quantum dot film technology, which greatly reduces the cost, but it will cause the problem of color fading of white light passing through the light guide plate. Quantum dot network solution

Method used

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  • Light guide plate with quantum dot diaphragm array and quantum dot site and application of light guide plate
  • Light guide plate with quantum dot diaphragm array and quantum dot site and application of light guide plate
  • Light guide plate with quantum dot diaphragm array and quantum dot site and application of light guide plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] 1. Preparation of light guide plate printed with quantum dots

[0075] Weigh the amino silicone oil dispersion containing 15g of red cadmium selenide, 20g of the green cadmium selenide amino silicone oil dispersion, and 100g of printing ink, and mechanically stir the mixed solution for 3 hours, and let stand to obtain the quantum dot mixed slurry. The mass ratio of the above raw materials is 0.15:0.2:1 to achieve white balance. The above-mentioned mixed quantum dot mixed slurry is printed on the lower surface of the light guide plate by screen printing to prepare a light guide plate printed with quantum dot screen dots. In the quantum dot network, the content of red quantum dots is 2.25%, and the content of green quantum dots is 3%.

[0076] 2. Preparation of one-dimensional quantum dot membrane

[0077] Weighing 90g solid content is 40% titanium dioxide isobornyl acrylate (IBOA) dispersion liquid, after stirring and mixing on the shaker, join the amino silicone oil d...

Embodiment 2

[0084] 1. Preparation of light guide plate printed with quantum dots

[0085] Weigh the mixture containing 10g red cadmium selenide amino silicone oil dispersion, 30g green cadmium selenide amino silicone oil dispersion, and 100g ink, stir it mechanically for 3 hours, and let it stand to obtain the quantum dot mixed slurry. The mass ratio of the above raw materials is 0.1:0.3:1 to achieve white balance. The above-mentioned mixed quantum dot mixed slurry is printed on the lower surface of the light guide plate by screen printing to prepare a light guide plate printed with quantum dot screen dots. In the quantum dot network, the content of red quantum dots is 2.25%, and the content of green quantum dots is 3%.

[0086] 2. Preparation of zero-dimensional quantum dot membrane

[0087]Weigh 90g of the titanium dioxide IBOA dispersion with a solid content of 40%, stir and mix evenly on a shaker, add to the amino silicone oil dispersion containing 30g red cadmium selenide, 40g gree...

Embodiment 3

[0094] Quantum dot network point and one-dimensional quantum dot film array provided as embodiment 1, wherein the amino silicone oil dispersion liquid of red cadmium selenide used in network point, the amino silicone oil dispersion liquid of green cadmium selenide and printing ink are 1: 1:15; the mass ratio of titanium dioxide IBOA dispersion, red quantum dot amino silicone oil dispersion, green quantum dot amino silicone oil dispersion, and acrylate UV-curable glue used in the one-dimensional quantum dot film is 1.5:3:3:100. In the quantum dot network, the content of red quantum dots is 1%, and the content of green quantum dots is 1%. The content of inorganic particles in the quantum dot glue layer is 6%, the content of red quantum dots is 0.45%, and the content of green quantum dots is 0.45%.

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Abstract

The invention belongs to the field of backlight display, and particularly relates to a light guide plate with a quantum dot diaphragm array and a quantum dot site and application of the light guide plate. In order to solve the problem that an existing display device is very poor in color gamut stability and brightness stability, the light guide plate with the quantum dot diaphragm array and the quantum dot site and application of the light guide plate are provided. At least one quantum dot diaphragm is stuck on the light-in surface of the light guide plate, the quantum dot site is printed on the opposite face of the light-out surface of the light guide plate, and the quantum dot site includes red quantum dots and green quantum dots. The light guide plate is applied to a display device, andthe display device is good in color gamut stability and brightness stability.

Description

technical field [0001] The invention belongs to the field of backlight display, and in particular relates to a light guide plate with a quantum dot film array and a quantum dot grid and an application thereof. Background technique [0002] Quantum dots (Quantum Dots, QDs) are nanoparticles with a size smaller than or close to the exciton Bohr radius of the bulk material and exhibit quantum effects. Usually they are aggregates composed of a certain number of actual atoms, and the size is less than 100nm. So it is also called nano dots. There are many types of quantum dots, which can be divided into semiconductor quantum dots and carbon quantum dots according to the material composition. Among them, semiconductor quantum dots that have been studied more are fluorescent nanomaterials based on II-VI groups (such as CdSe, ZnO, MgS). [0003] As a new type of inorganic nanomaterials, semiconductor quantum dots have excellent optoelectronic properties different from bulk material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/00G02F1/13357
CPCG02B6/0023G02B6/005G02F1/1336G02F1/133614
Inventor 李刚李培源徐雍捷徐良霞陈冲孙书政刘伟罗维德唐海江张彦
Owner NINGBO EXCITON TECH
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