| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid crystal display device that reduces power consumption and suppresses display degradation (reduction in display quality), particularly the display degradation (reduction in display quality) caused by an external factor such as temperature. <P>SOLUTION: A driver circuit part of the display device has a function in which image signals are written to a selected pixel successively so as to display an image on a screen and a function in which 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 per micrometer in channel width is reduced to an extremely low level such a value that is lower than 10 zA/μm at room temperature and lower than 100 zA/μm at 85°C. <P>COPYRIGHT: (C)2011,JPO&INPIT |
