18999378. DISPLAY DEVICE (SEMICONDUCTOR ENERGY LABORATORY CO., LTD.)
DISPLAY DEVICE
Organization Name
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor(s)
DISPLAY DEVICE
This abstract first appeared for US patent application 18999378 titled 'DISPLAY DEVICE
Original Abstract Submitted
A display panel for displaying an image is provided with a plurality of pixels arranged in a matrix. Each pixel includes one or more units each including a plurality of subunits. Each subunit includes a transistor in which an oxide semiconductor layer which is provided so as to overlap a gate electrode with a gate insulating layer interposed therebetween, a pixel electrode which drives liquid crystal connected to a source or a drain of the transistor, a counter electrode which is provided so as to face the pixel electrode, and a liquid crystal layer provided between the pixel electrode and the counter electrode. In the display panel, a transistor whose off current is lower than 10 zA/μm at room temperature per micrometer of the channel width and off current of the transistor at 85° C. can be lower than 100 zA/μm per micrometer in the channel width.