Electrochromic compound, electrochromic composition, and electrochromic element
申请人:Yamamoto Satoshi
公开号:US10642119B2
公开(公告)日:2020-05-05
An electrochromic compound represented by the following formula (I) is provided:
where each of R1 to R8 and R11 to R18 independently represents any one of a hydrogen atom, a halogen atom, a monovalent organic group, the monovalent organic group having a substituent, a polymerizable functional group, and the polymerizable functional group having a substituent; and each of R9, R10, R19, and R20 independently represents any one of a hydrogen atom, an alkyl group, and an aryl group.
Electroluminescent material, method for manufacturing same, and light emitting device
申请人:Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
公开号:US11322694B2
公开(公告)日:2022-05-03
The present application provides an electroluminescent material, a method for manufacturing an electroluminescent material, and a light emitting device, by employing the strong electron-withdrawing group such as cyano, pyridine, pyrimidine, or s-triazine to enhance the electron-withdrawing property of the fluorenone receptor unit, a captodative electron effect between the electron donor unit and the electron acceptor unit in the molecule is enhanced, so that the intermolecular charge transfer property is enhanced while the red light shifts, thereby further reducing the energy level difference between the single-line energy level and the triplet energy level of the target molecule, to realize a long life span, red light emitted electroluminescent material, a method for manufacturing the electroluminescent material and a light emitting device.
[EN] THERMALLY ACTIVATED DELAYED FLUORESCENCE BLUE LIGHT MATERIAL, SYNTHESIS METHOD THEREFOR AND USE THEREOF<br/>[FR] MATÉRIAU DE LUMIÈRE BLEUE À FLUORESCENCE RETARDÉE ACTIVÉ THERMIQUEMENT, SON PROCÉDÉ DE SYNTHÈSE ET SON UTILISATION<br/>[ZH] 热活化延迟荧光蓝光材料,其合成方法及应用
申请人:WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD