Quantum dot dot light guide plate and preparation method thereof
A technology of quantum dots and light guide plates, applied in the field of optics, 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 On the one hand, an embodiment of the present invention provides a method for preparing a quantum dot network dot light guide plate, comprising 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 plate provided with a circular window or an annular window, fix the mask plate above the polymer material layer, and perform surface activation treatment on the polymer material below the window area, Transform the Si-R group on the surface of the polymer material below the window area into a Si-O-Si group and / or Si-OH group, forming a hydrophilic ring or a hydrophilic circle on the surface of the polymer material layer twenty one;
[0023] S03. Depositing hydrophilic quantum dot ink in the area where the hydrophilic circle is located, or depositing hydrophobic quantum dot ink in the area surround...
Embodiment approach
[0051] As a preferred embodiment, the quantum dot network is composed of quantum dots, a second curing agent and scattering particles. The role 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 Particles, 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 10-45nm, 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 Particles, CaCO 3 Particles and BaSO 4 at l...
Embodiment 1
[0061] A quantum dot dot light guide plate prepared based on inkjet printing, prepared by the following method:
[0062] (1) PDMS material preparation:
[0063] Fully mix and stir the PDMS prepolymer and the corresponding curing agent at a volume ratio of 10:1; then put the evenly mixed PDMS liquid into a vacuum box for degassing for 30 minutes. After the degassing is completed, the PDMS solution is transparent without air bubbles .
[0064] (2) PDMS material coating:
[0065] The substrate of the light guide plate is cleaned and dried, and then the prepared PDMS material is coated on the lower surface of the substrate of the light guide plate by a doctor blade coating process, wherein the film thickness of the PDMS layer is 0.1mm; then the light guide plate coated with the PDMS material is The substrate was baked and cured in an oven at 80° C. for 1 h.
[0066] (3) Selective activation treatment of PDMS materials:
[0067] Cover the above-mentioned cured PDMS film with a ...
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Abstract
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