Patent ID: 6963382

Claim:
A method of driving a reflective type liquid crystal display device, said reflective type liquid crystal display device comprising: a first insulating substrate having transparency; a reflecting layer; a second insulating substrate being disposed opposite to the first insulating substrate, at least a part of said second insulating substrate covering the reflecting layer; a first electrode being formed over the first insulating substrate; a first conducting line for applying electrical signals to the first electrode, said first conducting line being formed over the first insulating substrate; a first thin film transistor formed over the first insulating substrate as a switching element and electrically connected to the first electrode and the first conducting line, said first thin film transistor comprising: a crystalline semiconductor island formed over the first insulating substrate; source and drain regions formed in the crystalline semiconductor island; a gate electrode formed adjacent to the crystalline semiconductor island having a gate insulating film therebetween, a pair of low concentration regions each being adjacent to the source and drain regions in the crystalline semiconductor island; an interlayer insulating film covering the first thin film transistor, said interlayer insulating film being a multilayer film of silicon oxide and silicon nitride; a second electrode being formed over the first insulating substrate, said second electrode being electrically insulated from the first electrode and from the first conducting line; a second conducting line for applying electrical signals to the second electrode, said second conducting line being formed on the first insulating substrate; a liquid crystal material being interposed between the first and second insulating substrates; said method comprising the steps of: producing a parallel electric field to the first insulating substrates, said parallel electric field being generated between the first and second electrodes, and driving the liquid crystal material by the parallel electric field, wherein the liquid crystal material is oriented in a hybrid alignment nematic mode.