国家/地区 中国（3）
IPC部 C（3）
IPC大类 C09（3）
IPC小类 C09D（3）
IPC C09D007/61（2） G09F009/30（2） G09F009/33（2）
发明人
公开年 2022（3）
申请年 2021（2） 
专利权人

Protective film used in display apparatus comprises light shielding layer disposed in edge portion of one surface of substrate, where light shielding layer comprises first layer on edge of one surface of substrate and second layer on first layer.

CHOI S, JEON H, CUI S, JEON H M

Additional coating useful for transparent polyimide film comprises hyper-branched polyurethane acrylic resin, acrylic based silsesquioxane, photoinitiator and organic solvent, where coating is formed by coating and curing on transparent polyimide base material.

FAN Y, ZOU Q, DONG H, LIU K

Super-black coating useful in light emitting diode (LED) display screen comprises matrix resin, carbon black, matting agent, and diluent.

WANG C, XU X, XIA J, LI X, YANG G