Patent ID: 9478185
Filing Date: 2016-10-25
CPC Classification: G09G

Claim Text:
1. An electro-optical display device comprising a pixel, the pixel comprising: a first transistor including an oxide semiconductor containing indium in its channel; a second transistor including silicon in its channel; a third transistor including silicon in its channel; a capacitor; and a display element, wherein a source of the first transistor is electrically connected to a gate of the second transistor, a gate of the third transistor, and one electrode of the capacitor, wherein a source of the second transistor is electrically connected to one electrode of the display element, wherein a drain of the second transistor and the other electrode of the capacitor are electrically connected to a capacitor line, wherein a source of the third transistor is electrically connected to the other electrode of the display element, wherein a gate of the first transistor is electrically connected to a scan line, wherein a drain of the first transistor is electrically connected to a signal line, wherein the second transistor and the third transistor have the same conductivity type, wherein a leakage current of the first transistor is less than or equal to 1×10 wherein an off-state current of the first transistor is less than or equal to 1/100 of a leakage current of the display element, and wherein a capacitance of the capacitor is less than or equal to 1/10 of a capacitance of the display element.