IP Library › Granted Patent US 10,764,481
Granted Patent B2
US 10,764,481 · App. 15/829,410 · Granted Sep 1, 2020

Light-emitting device and camera

Inventors: Yoshiharu Hirakata (Kanagawa, JP); Nobuharu Ohsawa (Kanagawa, JP); Hisao Ikeda (Kanagawa, JP); Kazuhiko Fujita (Kanagawa, JP); Akihiro Kaita (Kanagawa, JP)
Assignee: Semiconductor Energy Laboratory Co., Ltd.
H04N5/2256G03B15/03G03B15/05H01L51/5212H01L51/5275H04N5/2354H04N5/23293H05B33/08H05B45/37G03B2215/0567H01L2227/326H01L2251/5338H01L2251/5361H01L2251/5376
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Quick Facts
Patent No.
US 10,764,481
App. No.
15/829,410
Granted
Sep 1, 2020
Kind
B2
Abstract

A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.

Claims (12)

1. An electronic device comprising:

a display panel comprising an organic EL element; and

a camera comprising a lens,

wherein the display panel and the lens are on the same side of a substrate,

wherein the display panel surrounds the lens, and

wherein the display panel has a function of a flash of the camera.

2. A camera comprising:

a display panel comprising an organic EL element; and

a lens,

wherein the display panel and the lens are on the same side of a substrate,

wherein the display panel surrounds the lens, and

wherein the display panel has a function of a flash of the camera.

Priority Claims (1)
JP 2013-107153 · May 21, 2013 · national
Continuity (3)
Continuation 15095432 · Apr 11, 2016
Continuation 14281014 · May 19, 2014
Related Publication 20180084170A1 · Mar 22, 2018