Yuanheng Optoelectronics applies for a patent for MINI LED display packaging materials

The patent abstract shows that the invention relates to MINI LED display packaging materials and preparation processes, and belongs to the field of display packaging technology. The packaging material includes the following raw materials by weight: 6080 parts of epoxy resin, 2040 parts of toughening agent, 80130 parts of curing agent, and 520 parts of auxiliary agents; the toughening agent is double-terminated isocyanate-based silicone oil and functional diol in acetone, and is obtained by reaction under the action of an organic tin catalyst; The double-terminated isocyanate-based silicone oil is obtained by reacting dihydroxy silicone oil and diisocyanate in acetone under the action of an organic tin catalyst; the functional diol is obtained by reacting the esterification reaction product of dimethylol propionic acid and 4-hydroxyl 2,2,6,6 tetramethylpiperidine 1-oxygen radical and dibenzoyl peroxide. The present invention improves the heat resistance of the epoxy resin and reduces its thermal expansion coefficient by adding a toughening agent.