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 method for forming an electro-optical device comprising the steps of:forming a plurality of thin film transistors, each of said thin film transistors having at least a semiconductor film to form a channel region;forming an interlayer insulating film comprising an inorga

[ What is claimed is:] [1.] A method for forming an electro-optical device comprising the steps of:forming a plurality of thin film transistors, each of said thin film transistors having at least a semiconductor film to form a channel region;forming an interlayer insulating film comprising an inorganic material on the thin film transistors;forming a leveling layer comprising an organic resin over said interlayer insulating film to provide a leveled upper surface;forming a plurality of openings in the leveling layer over the respective thin film transistors; andforming a plurality of pixel electrodes over the leveled upper surface, each of said pixel electrodes being electrically connected to the corresponding thin film transistors through the corresponding openings,wherein an inside wall of at least some of said openings is tapered.