Cured resin, green photoresist, color filter and their preparation method, color display device
A color filter and green photoresist technology, applied in the direction of optical filters, optical components, optical mechanical equipment, etc., can solve the problems of increased cost and high energy consumption, and achieve energy saving, high heat resistance, and cost reduction Effect
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[0085] The embodiment of the present invention provides a method for preparing cured resin. In the preparation method, the raw materials of dibasic anhydrides and diamines used to prepare polyimide resins have a wide range of sources and a simple synthesis process. The cured resin finally obtained by the addition reaction overcomes the problem of high-temperature curing caused by the resin prepared by the traditional process, and realizes the low-temperature curing of the cured resin. The cured resin prepared by the preparation method can not only reduce the energy consumption required in the production process of the color filter.
[0086] Corresponding to the above-mentioned green photoresist, the embodiment of the present invention also provides a preparation method of a green photoresist, comprising figure 2 As shown, the method includes,
[0087] Step N1: Weigh the raw cured resin, colorant, solvent, starter and additives and mix them evenly.
[0088] In this step, the...
Embodiment 1
[0107] Preparation of Cured Resin
[0108] First, weigh 1 part of biphenyl dianhydride and 0.9 parts of 4,4'-methylene bis(2-ethyl-6-methylaniline), and dissolve them in 11 parts of ethylene glycol dimethyl ether , fully mixed, injected into a four-necked bottle equipped with a heating device, a reflux device, a stirring device and a dropping device; after that, weighed 1.8 parts of styrene by weight and dissolved it in 4 parts of cyclohexane, Fully dissolved, also injected into the reaction vessel; finally, weigh 0.25 parts of 4-hydroxyphthalic anhydride and 0.03 parts of azobisisovaleronitrile by weight, dissolve the two in 2.5 parts of ethylene glycol dimethyl ether, fully dissolve, Add it dropwise into a four-necked flask, pass through nitrogen protection, and react at a temperature of 100° C. for 2.5 hours to obtain a cured resin.
[0109] The cured resin was analyzed by gel permeation chromatography to obtain: the measured value of the molecular weight of the cured resi...
Embodiment 2
[0115] Preparation of Cured Resin
[0116] First, take 1 part of benzophenone dianhydride and 1.1 parts of 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane by weight, and dissolve them in 16 parts of 1,1,1-tris Chloroethane, fully mixed, injected into a four-necked bottle with a heating device, a reflux device, a stirring device and a dropping device; after that, weighed 2.1 parts of methyl acrylate by weight, and dissolved it in 4.9 parts of ring Fully dissolved in hexane, and injected into the reaction vessel; finally, weigh 0.35 parts of nitrophthalic anhydride and 0.05 parts of azobisisovaleronitrile by weight, and dissolve them in 3.4 parts of 1,1,1-trichloro fully dissolved in ethane, added dropwise into a four-necked flask, protected by nitrogen, and reacted for 2.5 hours at a temperature of 130°C to obtain a cured resin.
[0117] The cured resin was analyzed by gel permeation chromatography to obtain: the measured value of the molecular weight of the cured resin was ...
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