Inventor

BI DEFENG

CN3 patents

⚠️ This page may combine multiple inventors who share the name “BI DEFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHANGHAI TIANMA AM OLED CO LTD

2 patents

US10759802B2Sep 1, 2020

Compound, preparation method thereof and organic light emitting display device

SHANGHAI TIANMA AM OLED CO LTD0 citations35

US9991448B2Jun 5, 2018

Compound, luminescent material and organic light emitting device using same

SHANGHAI TIANMA AM OLED CO LTD0 citations35

SHANGHAI TIANMA AM-OLED CO LTD

1 patent

US9853241B2Dec 26, 2017

Organic light-emitting display apparatus and fabrication method thereof

SHANGHAI TIANMA AM-OLED CO LTD11 citations75