发明名称 Electronic device, display device, and semiconductor device and method for driving the same
摘要 A pixel having a transistor which controls a current value supplied to a load, a first storage capacitor, a second storage capacitor, and first to fourth switches is included. After the threshold voltage of the transistor is held in the second storage capacitor, a potential in accordance with a video signal is input to the pixel. Voltage obtained by adding a potential in which the potential in accordance with the video signal and the first storage capacitor are capacitively divided to the threshold voltage is held in the second storage capacitor in this manner, so that variation of a current value caused by variations in the threshold voltage of the transistor is suppressed. Thus, desired current can be supplied to the load such as a light-emitting element. In addition, a display device with little deviation from luminance specified by the video signal can be provided.
申请公布号 EP1918904(A2) 申请公布日期 2008.05.07
申请号 EP20070020230 申请日期 2007.10.16
申请人 SEMICONDUCTOR ENERGY LABORATORY CO., LTD. 发明人 KIMURA, HAJIMA;YAMADA, TOMOKO
分类号 G09G3/32 主分类号 G09G3/32
代理机构 代理人
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