High-stability micro-foaming quantum dot diffusion plate and preparation method and application thereof

A quantum dot and micro-foaming technology, which is applied in the field of highly stable micro-foaming quantum dot diffusion plate and its preparation, can solve the problems of brightness attenuation, warpage, low distribution uniformity, etc., and achieves fine foaming pore size, excellent The effect of stability

Pending Publication Date: 2022-04-15
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the large pore size formed by the chemical foaming agent and the low distribution uniformity, the strength of the quantum dot optical function board is reduced, especially in high temperature and high humidity environments, which are prone to deformation and warping problems, which also causes brightness problems. The problem of large attenuation

Method used

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  • High-stability micro-foaming quantum dot diffusion plate and preparation method and application thereof
  • High-stability micro-foaming quantum dot diffusion plate and preparation method and application thereof
  • High-stability micro-foaming quantum dot diffusion plate and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～18

[0050] Embodiments 1 to 18 respectively provide a microfoamed quantum dot diffusion plate, the component contents are shown in Table 1, and the preparation method is as follows:

[0051]S1. Disperse the quantum dots in an organic solvent to obtain a quantum dot solution;

[0052] Wherein the quantum dot of embodiment 1 is CdZnSeS, the organic solvent is toluene, and the quantum dot concentration is 10wt.%; The quantum dot of embodiment 2 is CdZnSeS, and the organic solvent is toluene, and the quantum dot concentration is 30wt.%. The point is CdZnSeS, the organic solvent is toluene, and the quantum dot concentration is 5wt.%; the quantum dot of embodiment 4 is CdZnSeS, the organic solvent is toluene, and the quantum dot concentration is 40wt.%; the quantum dot of embodiment 5 is InZnP, and the organic solvent It is n-hexane, and the quantum dot concentration is 10wt.%. The quantum dot of embodiment 6 is CdZnSe, and the organic solvent is styrene, and the quantum dot concentrati...

Embodiment 1

[0059] Embodiments 19 to 22 respectively provide a microfoamed quantum dot diffusion plate, the component content is the same as that of Example 1, and the difference between the preparation method and Example 1 is that in step S3:

Embodiment 19

[0060] The pressure of the supercritical fluid of embodiment 19 is 20MPa, and feed rate is 30mL / min;

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Abstract

The invention discloses a high-stability micro-foaming quantum dot diffusion plate and a preparation method and application thereof. The micro-foaming quantum dot diffusion plate is prepared from the following components in parts by weight: 100 parts of a resin base material, 0.1 to 0.5 part of quantum dots, 0.5 to 2.5 parts of a light diffusion agent, 0.01 to 0.1 part of a light stabilizer, 0.02 to 0.1 part of a lubricant, 0.2 to 1 part of an antioxidant and 0.2 to 1 part of a nucleating agent, the cell cross section density of the micro-foaming quantum dot diffusion plate is 1 * 10 < 2 >-5 * 10 < 5 > cells / cm < 2 >, and the average diameter of the cells is 2-10 [mu] m. The supercritical foaming technology and the quantum dot diffusion plate technology are combined, so that the quantum dot diffusion plate has uniform and fine foaming apertures, and has excellent brightness stability in a high-temperature and high-humidity environment.

Description

technical field [0001] The invention relates to the technical field of display and lighting, and more specifically, to a highly stable microfoaming quantum dot diffusion plate and its preparation method and application. Background technique [0002] Quantum dot (quantum dot) is a semiconductor nanostructure that binds excitons in three spatial directions, and is an excellent luminescent and optoelectronic material. Quantum dot display is a display technology that utilizes the special properties of quantum dots to achieve high performance and low cost. Compared with OLED TV, quantum dot TV has a wider color gamut display, more precise color control, longer service life and stronger energy saving, and has great application potential in photoluminescent high-color display. [0003] At present, the backlight technology of quantum dot materials can be divided into three types according to the different packaging methods of quantum dot materials: chip packaging type, side tube pa...

Claims

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Application Information

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IPC IPC(8): G02B5/02G02B1/00G02B1/04G02F1/13357C09K11/88C09K11/70C09K11/02
CPCY02P20/54
Inventor 林士文陈平绪叶南飚黄宝奎郭少华官焕祥李玉虎付锦锋
Owner KINGFA SCI & TECH CO LTD
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