公开(公告)号：US09954389B2

公开(公告)日：2018-04-24

申请号：US14872659

申请日：2015-10-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yusuke Yoshitani ,  Masaaki Hiroki ,  Minoru Takahashi

IPC: H02J7/02 ,  F21V23/04 ,  H02J50/20 ,  H01L51/00 ,  H01L51/50 ,  H01L51/52 ,  H01L27/32 ,  H01M10/052

CPC classification number: H02J7/025 ,  H01L27/3244 ,  H01L51/0052 ,  H01L51/006 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/524 ,  H01M10/052 ,  H02J50/20

Abstract: To provide a light-emitting device capable of being used in a wide temperature range. To provide a light-emitting device capable of being used in a low-temperature environment and a high-temperature environment. The light-emitting device includes a light-emitting panel, a secondary battery, a circuit, and a sealing structure. The light-emitting panel includes a light-emitting element. The light-emitting element can emit light with power supplied from the secondary battery. The circuit includes an antenna and can charge the secondary battery wirelessly. The light-emitting panel, the secondary battery, and the circuit are provided in the sealing structure. The sealing structure includes a portion through which light emitted from the light-emitting element passes.