Title:
半導体装置
Document Type and Number:
Japanese Patent JP6639568
Kind Code:
B2
Abstract:
Objects are to provide a display device the power consumption of which is reduced, to provide a self-luminous display device the power consumption of which is reduced and which is capable of long-term use in a dark place. A circuit is formed using a thin film transistor in which a highly-purified oxide semiconductor is used and a pixel can keep a certain state (a state in which a video signal has been written). As a result, even in the case of displaying a still image, stable operation is easily performed. In addition, an operation interval of a driver circuit can be extended, which results in a reduction in power consumption of a display device. Moreover, a light-storing material is used in a pixel portion of a self-luminous display device to store light, whereby the display device can be used in a dark place for a long time.
Inventors:
Shunpei Yamazaki
Jun Koyama
Hiroyuki Miyake
Jun Koyama
Hiroyuki Miyake
Application Number:
JP2018114892A
Publication Date:
February 05, 2020
Filing Date:
June 15, 2018
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H01L29/786; G02F1/1368; G09F9/30; H01L21/336; H01L27/32; H01L51/50; H05B33/12
Domestic Patent References:
| JP2009033145A | ||||
| JP2008522440A | ||||
| JP2009043748A | ||||
| JP2007123861A | ||||
| JP2009135380A | ||||
| JP2007529117A | ||||
| JP2001290439A | ||||
| JP3084963A |