公开(公告)号：US11139458B2

公开(公告)日：2021-10-05

申请号：US16750624

申请日：2020-01-23

Applicant: FUJIFILM Corporation

Inventor： Toshihiro Konishi ,  Kenta Yamazaki ,  Shinpei Yoshida ,  Ryo Satake ,  Hiroyuki Okusa

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/00 ,  G02B5/30

Abstract: An organic EL display device is provided in which a change in tint is reduced in a bent portion. This organic EL display device is an organic electroluminescent display device including, from a viewing side, a circularly polarizing plate, a first adhesion layer, and a bendable organic electroluminescent display panel, in which the circularly polarizing plate includes, from the viewing side, a linear polarizer, a second adhesion layer, and a phase difference layer functioning as a λ/4 plate, a complex modulus of elasticity of the first adhesion layer is 2.50×105 Pa or less, the first adhesion layer is thicker than the second adhesion layer, and an absorption axis of the linear polarizer is positioned at an angle of 0°±30° or 90°±30° with respect to an extension direction of a ridge line formed in a case where the organic electroluminescent display device is bent.