Patent ID: 6714184
Filing Date: 2004-03-30
Classification: G09G,H03K

Abstract:
A display apparatus comprising:a display unit comprised of pixel elements arranged in a matrix; a signal circuit and a scanning circuit for driving the pixel elements; a multi-input type level conversion circuit connected to the signal circuit and the scanning circuit, to perform level conversion of data signals and transmit to the signal circuit and the scanning circuit to drive the pixel elements; a differential input type level conversion circuit connected to at least one of the signal circuit and the scanning circuit, to perform level conversion of differential clock signals to control the transmission of data signals to the signal circuit to drive the pixel elements; a latch circuit connected to the multi-input type level conversion circuit and the differential input type level conversion circuit, to latch the data signals transmitted from the multi-input type level conversion circuit to the signal circuit in accordance with clock signals outputted from the differential input type level conversion circuit; wherein: the differential input type level conversion circuit converts the differential clock signals having a low voltage amplitude into clock signals having a high voltage amplitude, and outputs the clock signals having the high voltage amplitude to the latch circuit, and the multi-input type level conversion circuit converts input data signals having a low voltage amplitude to data signals having a high voltage amplitude, and outputs the data signals having the high voltage amplitude to the latch circuit.