Quantum dot ink, color filter film, display device and preparation method of color filter film
A technology of color filter film and quantum dots, which is applied in the direction of optical filters, inks, household appliances, etc., can solve the problems affecting the stability of quantum dot filter films, the printing of quantum dot inks is not smooth, and the effect of light diffusion is affected. Achieve the effects of improving display effect, increasing refraction, huge economic and social benefits
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[0061] The application also provides a method for preparing a color filter film, comprising the steps of:
[0062] S1, adding the above-mentioned quantum dot ink on the substrate;
[0063]The way of adding ink includes any one or combination of inkjet and coating. In the inkjet printing method, it is desirable to print the quantum dot ink on the substrate with a thickness of 0.5 μm to 15 μm. The inkjet spraying method can be carried out by spraying a single color, or by spraying different colors at the same time. This application does not limit this, as long as the quantum dot ink is added to the substrate, it is in line with the scope of protection of this application.
[0064] S2. Photocuring the quantum dot ink to form a prefabricated film;
[0065] The quantum dot ink is cured to form a prefabricated film. The wavelength, energy, and time of ultraviolet light in the ultraviolet curing of the present application can be selected according to actual needs, which is not limit...
Embodiment 1
[0091] Step 1, the following weight percentage refers to the weight ratio of each substance in the quantum dot ink, the green CdSe / ZnS quantum dot of 23.1wt%, the dodecyltriethoxysilane of 23.7wt%, the dodecyltriethoxysilane of 24.2wt% Add triethylene glycol dimethacrylate and 23.2wt% pentaerythritol tetraacrylate into a brown bottle, place it in an ultrasonic oscillator at 45°C for 30 minutes, and completely dissolve the green CdSe / ZnS quantum dots. Among them, the green CdSe / ZnS quantum dots include oleic acid, bis-p-chlorophenyltrichloroethane, and oleylamine ligands, and the ligand content accounts for 12% of the quantum dot content;
[0092] Step 2. Add 3.8wt% of 2-hydroxy-2-methyl-1-phenylacetone, 0.8wt% of BYK-361N leveling agent, 0.4wt% of BYK-1790 disinfectant to the brown bottle in step 1. After foaming agent and 0.8wt% dibutyl hydroxytoluene, place the brown bottle in an ultrasonic oscillator at 45°C for 30 minutes to ensure that the additives added are completely d...
Embodiment 2
[0096] Step 1, the following weight percentage refers to the weight ratio of each substance in the quantum dot ink, the cyclohexylmethyldimethoxysilane of 17.8wt%, the trimethylolpropane trimethacrylate of 53.4wt% , add 23.1wt% green CdSe / ZnS quantum dots in a brown bottle, place in an ultrasonic oscillator at 45°C for 30 minutes, and completely dissolve the green CdSe / ZnS quantum dots, wherein the green CdSe / ZnS quantum dots include oleic acid, Bis-p-chlorophenyl trichloroethane, oleylamine ligand, the ligand content accounts for 15% of the quantum dot content;
[0097] Step 2. Add 2.0wt% trimethylbenzoyl-diphenylphosphine oxide, 1.8wt% 2-isopropylthioxanthone, 0.8wt% BYK-3441 to the brown bottle in step 1 After leveling agent, 0.4wt% BYK-1798 defoamer, and 0.8wt% methyl hydroquinone, place the brown bottle in an ultrasonic oscillator at 45°C for 30 minutes to ensure that the added additives are completely dissolved and stir evenly Finally, a quantum dot ink with a viscosity...
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