Sumitomo Chemical Company Limited;Cambridge Display Technology Limited
发明人:
Ruth Pegington,Martin Humphries
申请号:
US15819884
公开号:
US10434102B2
申请日:
2017.11.21
申请国别(地区):
US
年份:
2019
代理人:
摘要:
An OLED comprising a hole-transporting layer and light-emitting layer wherein the hole-transporting layer comprises a hole-transporting polymer wherein no more than 5% of the polystyrene equivalent polymer weight measured by gel permeation chromatography consists of chains with weight of less than 50,000.