公开(公告)号：US20210135164A1

公开(公告)日：2021-05-06

申请号：US16685968

申请日：2019-11-15

申请人： Gang Yu ,  Chung-Chia Chen ,  Wan-Yu Lin ,  Hyunsung Bang ,  Lisong Xu ,  Byung Sung Kwak ,  Robert Jan Visser

发明人： Gang Yu ,  Chung-Chia Chen ,  Wan-Yu Lin ,  Hyunsung Bang ,  Lisong Xu ,  Byung Sung Kwak ,  Robert Jan Visser

IPC分类号： H01L51/52 ,  H01L51/42 ,  H01L51/50 ,  H01L51/00

摘要： An organic light-emitting diode (OLED) structure includes a stack of OLED layers that includes a light emission zone having a planar portion, and a light extraction layer formed of a UV-cured ink disposed over the light emission zone of the stack of OLED layers. The light extraction layer has a gradient in index of refraction along an axis normal to the planar portion.