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Polymerization process of quantum dot doped PMMA (Polymethyl Methacrylate) body, light guide plate manufacturing process and light guide plate

A bulk polymerization and quantum dot technology, applied in the direction of light guide, optics and light guide doped with fluorescent agent, to achieve the effect of uniform distribution, improved light transmittance and good water and oxygen barrier performance

Active Publication Date: 2017-06-23
厦门市京骏科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a quantum dot-doped PMMA body polymerization process, a light guide plate process and a light guide plate, which solves the packaging problem of quantum dots in a backlight module and improves the stability and light transmittance of quantum dots at the same time

Method used

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  • Polymerization process of quantum dot doped PMMA (Polymethyl Methacrylate) body, light guide plate manufacturing process and light guide plate
  • Polymerization process of quantum dot doped PMMA (Polymethyl Methacrylate) body, light guide plate manufacturing process and light guide plate
  • Polymerization process of quantum dot doped PMMA (Polymethyl Methacrylate) body, light guide plate manufacturing process and light guide plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] 1. Weigh a certain amount of methyl methacrylate (MMA), weigh 0.25% of the weight of MMA quantum dots, wherein the ratio of green quantum dots to red quantum dots is 50:1, and weigh 0.5% of the weight of MMA Cyclohexane solution, weighing 0.43% of the weight of MMA weight dibenzoyl peroxide (BPO).

[0082] 2. Dissolve quantum dots in cyclohexane solution, ultrasonically and oscillate to dissolve; add methyl methacrylate (MMA) dropwise to the above mixture, and shake well at the same time to fully disperse the quantum dot solution in MMA to form QD- MMA solution.

[0083] 3. Add dibenzoyl peroxide (BPO) into the QD-MMA solution prepared in step 2 and shake it to fully dissolve it. The water bath was refluxed and the temperature was controlled at 80°C to carry out the prepolymerization reaction. Observe the change of the solution every 10 minutes. When the viscosity of the solution gradually increases to form a viscous thin slurry, the solution is yellow and thick. Cool...

Embodiment 2

[0090] 1. Weigh a certain amount of methyl methacrylate (MMA), and weigh quantum dots whose weight is 1.25% of MMA weight, wherein the ratio of green quantum dots to red quantum dots is 50:1, and weigh 1.9% of MMA weight Cyclohexane solution, weighing 0.48% of the weight of MMA weight dibenzoyl peroxide (BPO).

[0091] 2. Dissolve quantum dots in cyclohexane solution, ultrasonically and oscillate to dissolve; add methyl methacrylate (MMA) dropwise to the above mixture, and shake well at the same time to fully disperse the quantum dot solution in MMA to form QD- MMA solution.

[0092] 3. Add dibenzoyl peroxide (BPO) into the QD-MMA solution prepared in step 2 and shake it to fully dissolve it. The water bath was refluxed and the temperature was controlled at 80°C to carry out the prepolymerization reaction. Observe the change of the solution every 10 minutes. When the viscosity of the solution gradually increases to form a viscous thin slurry, the solution is yellow and thick...

Embodiment 3

[0099] 1. Weigh a certain amount of methyl methacrylate (MMA), and weigh quantum dots whose weight is 1.00% of MMA weight, wherein the ratio of green quantum dots to red quantum dots is 50:1, and weigh 1.2% of MMA weight Cyclohexane solution, weighing 0.44% of the weight of MMA weight dibenzoyl peroxide (BPO).

[0100] 2. Dissolve quantum dots in cyclohexane solution, ultrasonically and oscillate to dissolve; add methyl methacrylate (MMA) dropwise to the above mixture, and shake well at the same time to fully disperse the quantum dot solution in MMA to form QD- MMA solution.

[0101] 3. Add dibenzoyl peroxide (BPO) into the QD-MMA solution prepared in step 2 and shake it to fully dissolve it. The water bath was refluxed and the temperature was controlled at 80°C to carry out the prepolymerization reaction. Observe the change of the solution every 10 minutes. When the viscosity of the solution gradually increases to form a viscous thin slurry, the solution is yellow and thick...

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Abstract

The invention provides a polymerization process of a quantum dot doped PMMA (Polymethyl Methacrylate) body, a light guide plate manufacturing process and a light guide plate. PMMA with high stability and high light transmittance is used as a carrier, and red and green quantum dots with different ratios and concentrations are adjusted; after the PMMA is dissolved into less solvent, a mixture is chemically dispersed into methyl methacrylate (MMA); finally, uniform doping of the quantum dots in the PMMA is realized in a body polymerization manner. The doped PMMA is poured and molded, and then the PMMA is pressed into a quantum dot light guide plate with a water and oxygen obstructing capability through a layer-by-layer assembling process. According to the method provided by the invention, the quantum dots are uniformly doped into the light guide plate in a molding process of a light guide plate material, so that the quantum dots and the light guide plate are fused. The packaging problem of the quantum dots in a backlight module is solved; meanwhile, the stability and light transmittance of the quantum dots are improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a quantum dot-doped PMMA bulk polymerization process, a light guide plate process and the light guide plate. Background technique [0002] Existing liquid crystal display technologies often use LEDs as backlight sources, which are usually converted to white light based on blue light chips and phosphor powder. This technology of loading a filter on the backlight unit and the liquid crystal module to achieve RGB color matching to produce a white light source usually has defects such as affected display brightness, low color gamut level, and high cost. Therefore, Quantum-Dot Display technology emerged as the times require, using semiconductor nanostructured quantum dots with a special structure, to convert the original blue LED backlight into purer three-primary-color composite white light at the quantum physical scale , to improve the color gamut of the LCD screen. [0003] At p...

Claims

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Application Information

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IPC IPC(8): C08F120/14C08F2/44C08F2/02C08J7/04G02B6/00C08L33/12
CPCC08F2/02C08F2/44C08F120/14C08J7/0423C08J2333/12C08J2423/08C08J2463/00G02B6/0003G02B6/0043G02B6/0065
Inventor 不公告发明人
Owner 厦门市京骏科技有限公司
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