Title:
発光装置
Document Type and Number:
Japanese Patent JP6720372
Kind Code:
B2
Abstract:
A light-emitting device is provided, which is capable of correcting variation in luminance among pixels due to variation in electrical characteristics, such as threshold voltage or mobility, among driving transistors in a period where image display is performed. The light-emitting device includes a pixel; a first circuit configured to generate a signal including information about a value of current extracted from the pixel; and a second circuit configured to correct an image signal in accordance with the signal. The pixel includes a light-emitting element; a transistor whose drain current has a value determined in accordance with the image signal; a first switch configured to control supply of the drain current to the light-emitting element; and a second switch configured to control extraction of the drain current from the pixel and control the supply of the drain current to the light-emitting element.
Inventors:
Hiroyuki Miyake
Application Number:
JP2019041451A
Publication Date:
July 08, 2020
Filing Date:
March 07, 2019
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
G09G3/3233; G09G3/20; H01L27/32; H01L51/50; H05B44/00
Domestic Patent References:
| JP2003150107A | ||||
| JP2009008799A | ||||
| JP2005338792A |
Foreign References:
| US20110169798 | ||||
| US20120105421 |