公开(公告)号：US20240381745A1

公开(公告)日：2024-11-14

申请号：US18683621

申请日：2022-08-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao IKEDA ,  Daiki KAKAMURA ,  Ryo HATSUMI ,  Shunpei YAMAZAKI

IPC: H10K59/80 ,  H10K59/38

Abstract: A display device with high display quality is provided. The display device includes a light-emitting device; a lens provided over the light-emitting device to include a region overlapping with at least the light-emitting device; a protective layer provided to cover the lens; and a coloring layer provided over the protective layer. The light-emitting device includes an EL layer interposed between a common electrode and a pixel electrode. The EL layer contains a first light-emitting material emitting blue light and a second light-emitting material emitting light having a longer wavelength than blue light. The refractive index of the lens is higher than the refractive index of the common electrode, and the refractive index of the protective layer is lower than the refractive index of the lens.