Inventor

ZHANG ZHENGCHUAN

CN4 patents

⚠️ This page may combine multiple inventors who share the name “ZHANG ZHENGCHUAN”. 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

XIAMEN TIANMA MICRO ELECTRONICS CO LTD

1 patent

US11812645B2Nov 7, 2023

Display panel and display device

XIAMEN TIANMA MICRO ELECTRONICS CO LTD0 citations49

WUHAN TIANMA MICRO ELECTRONICS CO LTD

1 patent

US11411186B2Aug 9, 2022

Boron heterocyclic compound, display panel and display apparatus

WUHAN TIANMA MICRO ELECTRONICS CO LTD0 citations47