Title:
DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2022008550
Kind Code:
A
Abstract:
To reduce power consumption and suppress display degradation (reduction in display quality) of a display device, and provide a liquid crystal display device that suppresses the display degradation (reduction in display quality) caused by an external factor such as temperature.SOLUTION: A driver circuit part of a display device has such functions that image signals are written to a selected pixel successively so as to display an image on a screen, and writing operation of an image signal is stopped and a transistor is turned off so as to maintain one image written to the screen as it is when the one image is continuously displayed on the screen. Such functions are achieved by a transistor whose off current is reduced to an extremely low level with a value lower than 10 zA/μm per channel width 1 μm at room temperature and lower than 100 zA/μm at 85°C.SELECTED DRAWING: Figure 4
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Inventors:
YAMAZAKI SHUNPEI
Application Number:
JP2021156377A
Publication Date:
January 13, 2022
Filing Date:
September 27, 2021
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB CO LTD
International Classes:
G09G3/36; G02F1/133; G02F1/1368; G09G3/20; H01L29/786
Domestic Patent References:
| JP2008287032A | 2008-11-27 | |||
| JP2007179032A | 2007-07-12 |
Foreign References:
| CN1837902A | 2006-09-27 |