One object is to provide a new electronic device which is configured so that a user can read data regardless of a location, input data by directly touching a keyboard displayed on a screen or indirectly touching the keyboard with a stylus pen or the like, and use the input data. A first transistor electrically connected to a reflective electrode and a photo sensor are included over one substrate. A touch-input button displayed on a first screen region of the display portion is displayed as a still image, and a video signal is output so that a moving image is displayed on a second screen region of the display portion. A video signal processing portion supplying different signals between the case where a still image is displayed on the display portion and the case where a moving image is displayed on the display portion is included.
申请公布号
WO2011089848(A1)
申请公布日期
2011.07.28
申请号
WO2010JP73889
申请日期
2010.12.27
申请人
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.;KUROKAWA, YOSHIYUKI;IKEDA, TAKAYUKI;TAMURA, HIKARU;YAMAZAKI, SHUNPEI