Patent ID: 9703423
Date: 2017-07-11
CPC Classifications: G06F,H01L

Claim:
1. An electronic system comprising: a photo sensor; a display portion performing display by processing input data obtained from the photo sensor to a video signal; and a scan line driver circuit electrically connected to the display portion, wherein a touch-input button is displayed on a first screen region of the display portion as a still image, wherein the video signal is output so that a moving image is displayed on a second screen region of the display portion, wherein one frame period consists of a first period and a second period, wherein the touch-input button is displayed on the first screen region of the display portion as the still image during the first period and the second period, wherein the second screen region is updated in the second period and is not updated in the first period, wherein the first screen region is not updated in both the first period and the second period, wherein a clock signal is input to the scan line driver circuit during the second period, and the clock signal is not input to the scan line driver circuit in the first period, and wherein the display portion comprises a pixel comprising a transistor comprising a channel formation region in an oxide semiconductor layer.