Cured resin, red photoresist, color filter and their preparation method, color display device
A color filter and curing resin technology, applied in the direction of optical filters, optical components, optical mechanical equipment, etc., can solve the problems of high energy consumption and increased cost
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[0089] 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.
[0090] Corresponding to the above-mentioned red photoresist, the embodiment of the present invention also provides a preparation method of a red photoresist, comprising figure 2 As shown, the method includes,
[0091] Step N1: Weigh the raw cured resin, colorant, solvent, starter and additives and mix them evenly.
[0092] In this step, the cur...
Embodiment 1
[0111] Preparation of Cured Resin
[0112] First, take 1 part of pyromellitic dianhydride and 0.8 part of 2,2-bis(3-aminophenyl) hexafluoropropane by weight, dissolve the two in 10 parts of ethylene glycol dimethyl ether, mix thoroughly Evenly, pour it into a four-necked bottle with a heating device, a reflux device, a stirring device and a dropping device; after that, weigh 1.5 parts of methacrylate by weight, dissolve it in 3 parts of cyclohexane, and fully dissolve , and 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, dropwise Add it into a four-necked bottle, pass through nitrogen protection, and react at a temperature of 90° C. for 2.5 hours to obtain a cured resin.
[0113] The cured resin was analyzed by gel permeation chromatography to obtain: the measured value of the molecular weight of ...
Embodiment 2
[0119] Preparation of Cured Resin
[0120] First, take 1 part of trimellitic anhydride and 1 part of hexahydro-m-xylylenediamine by weight, dissolve them in 15 parts of 1,1,1-trichloroethane, mix them well, and inject them into the heating device, reflux device, stirring device and dropping device in the four-necked flask; after that, take 2 parts of maleimide by weight, dissolve it in 5 parts of cyclohexane, fully dissolve it, and inject it into the reaction Finally, take 0.4 parts of nitrophthalic anhydride and 0.05 parts of azobisisovaleronitrile by weight, dissolve them in 3.5 parts of 1,1,1-trichloroethane, fully dissolve them, and add them dropwise to In the four-neck flask, nitrogen protection was introduced, and a cured resin was obtained after reacting for 2 hours at a temperature of 130°C.
[0121] The cured resin was analyzed by gel permeation chromatography to obtain: the measured value of the molecular weight of the cured resin was 42539.96; the calculated value ...
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