国家/地区 中国（4）
IPC部 C（4）
IPC大类 C09（4） G02（4） C08（3）
G03（2） G09（2）
IPC小类 C09D（4）
IPC G02B001/10（4）
发明人
公开年
申请年 2021（2） 
专利权人

Composition useful for preparing light-shielding film of smartphone camera module as spacer, washer and coating solution comprises carbon-based particles, thermosetting binder resins, dispersants, polymer beads and solvents.

PARK S C, YUN J H, KIM Y S, KIM Y, PIAO S

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

Light emitting diode nano-black coating comprises resin coating and nano-black particles dispersed in resin coating.

HUANG Y

Method for preparing graphene/poly(3,4-ethylenedioxythiophene) polystyrene sulfonate mixed solution, involves mixing graphene powder and aqueous surfactant followed by dispersing diluted solution to obtain mixed solution.

HU T, LI Y, LEE Y