Quantum dot lattice point light guide plate and preparation method thereof
A technology of quantum dots and light guide plates, which is applied in the field of optics and can solve problems that affect the uniformity of light output and the size of dots cannot be accurately controlled.
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[0020] Combine Figure 1-3 In one aspect, the embodiments of the present invention provide a method for preparing a light guide plate of quantum dots, which includes the following steps:
[0021] S01. Provide a light guide plate 1, and prepare a polymer material layer 2 containing Si-R groups on the light guide plate 1, wherein R is an alkyl group;
[0022] S02. Provide a mask provided with a circular window or an annular window, fix the mask above the polymer material layer, and perform surface activation treatment on the polymer material under the window area, Convert the Si-R groups on the surface of the polymer material under the window area into Si-O-Si groups and / or Si-OH groups, and form a hydrophilic ring or a hydrophilic circle on the surface of the polymer material layer twenty one;
[0023] S03. Depositing a hydrophilic quantum dot ink in the area where the hydrophilic circle is located, or depositing a hydrophobic quantum dot ink in the area enclosed by the hydrophilic ...
Embodiment approach
[0051] As a preferred embodiment, the quantum dots are composed of quantum dots, a second curing agent and scattering particles. The function of the scattering particles is to enhance the scattering of the blue excitation light, so that the blue excitation light has more chances to collide with the red and green quantum dots, thereby exciting more red and green light, and increasing the luminous intensity of the dots. Preferably, the scattering particles are selected from SiC particles, Si 3 N 4 Particles, ZrO 2 Particles, HfO 2 Particles, SiO 2 Particles, TiO 2 Particles, ZnO particles, Al 2 O 3 Particles, SnO 2 Granules, CaCO 3 Particles and BaSO 4 At least one of the particles, more preferably, the scattering particles are selected from SiC particles with a particle size of 10-45 nm, Si 3 N 4 Particles, ZrO 2 Particles, HfO 2 Particles, SiO 2 Particles, TiO 2 Particles, ZnO particles, Al 2 O 3 Particles, SnO 2 Granules, CaCO 3 Particles and BaSO 4 At least one of the particles...
Embodiment 1
[0061] A quantum dot light guide plate prepared based on inkjet printing is prepared by the following method:
[0062] (1) PDMS material preparation:
[0063] The PDMS prepolymer and the corresponding curing agent are thoroughly mixed and stirred at a volume ratio of 10:1; then the well-mixed PDMS liquid is put in a vacuum box and degassed for 30 minutes. After the degassing is completed, the PDMS solution is transparent and there are no bubbles. .
[0064] (2) PDMS material coating:
[0065] The light guide plate substrate is cleaned and dried, and then the prepared PDMS material is coated on the lower surface of the light guide plate substrate by a knife coating process, wherein the film thickness of the PDMS layer is 0.1mm; then the light guide plate coated with PDMS material The substrate was put into an oven at 80°C and cured for 1 hour.
[0066] (3) PDMS material selective activation treatment:
[0067] The mask is covered on the cured PDMS film layer, and the ultraviolet ozone t...
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Abstract
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