초록 ▼

In case of driving the active electro-optical device, a gradation display can be carried out in a driving method having a display timing determined in relation to a time F for writing one screen and a time (t) for writing in one picture element, by applying a reference signal in a cycle of the time

In case of driving the active electro-optical device, a gradation display can be carried out in a driving method having a display timing determined in relation to a time F for writing one screen and a time (t) for writing in one picture element, by applying a reference signal in a cycle of the time (t), to the signal line used for a certain picture element driving selection, and by applying the select signal to the other signal line at a certain timing within the time (t), and whereby setting the value of the voltage to be applied to a liquid crystal.

대표청구항 ▼

[ What is claimed is:] [1.] A projector comprising:a light source;at least one liquid crystal panel to modify the light from said light source;at least one lens for projecting the light modified by said one liquid crystal panel onto a screen, wherein said liquid crystal panel comprises:a substrate h

[ What is claimed is:] [1.] A projector comprising:a light source;at least one liquid crystal panel to modify the light from said light source;at least one lens for projecting the light modified by said one liquid crystal panel onto a screen, wherein said liquid crystal panel comprises:a substrate having an insulating surface;at least one thin film transistor formed over said substrate, said thin film transistor including at least a channel region, source and drain regions with said channel region therebetween, a gate insulating film adjacent to said channel region, and a gate electrode adjacent to said channel region with said gate insulation film interposed therebetween;an organic resin film formed over said substrate to provide a leveled upper surface over said substrate, said organic resin film covering said thin film transistor; anda pixel electrode formed on said leveled upper surface, said pixel electrode being electrically connected to said thin film transistor through an opening formed in said organic resin film,wherein an inside wall of said opening is tapered.