Patent ID: 6392628
Filing Date: 2002-05-21
Classification: G09G,H01L

Abstract:
A semiconductor device comprising a source signal line side driving circuit, said source signal line side driving circuit comprising a first level shifter circuit, a second level shifter circuit, a shift register circuit, and a sampling circuit, wherein:said first level shifter circuit increases a voltage of an input signal, which is input to said first level shifter circuit from external to said source signal line side driving circuit, to a voltage amplitude level at which it is sufficient for said shift register circuit to operate, and inputs a signal to said shift register circuit; said shift register circuit creates a timing signal, based on the signal input from said first level shifter circuit, in order to sample an image signal supplied from external to said source signal line side driving circuit, and inputs the timing signal to said second level shifter circuit; said second level shifter circuit increases the voltage amplitude level of the timing signal, and inputs increased timing signal to said sampling circuit; and said sampling circuit samples the image signal in accordance with the timing signal, and supplies a sampled signal to source signal lines connected to said source signal line side driving circuit.