Patent ID: 6542142
Filing Date: 2003-04-01
Classification: G09G

Abstract:
A spatial light modulating element having a plurality of pixels and adapted for modulating a light by each pixel in accordance with pixel data based on an image signal to be displayed, the spatial light modulating element comprising, for each pixel:a voltage generating circuit having first level setting means for setting the electric potential of an output node at a first level in accordance with a first input signal from a first signal input, level holding means for holding the level of the output node, second level setting means for setting the electric potential of the output node at a second level different from the first level in accordance with a second input signal from a second signal input, and a common electric potential, said first level setting means includes a switch operable to select one of a first power supply voltage and a second power supply voltage which is different from said first power supply voltage in response to a control signal in which each of said first power supply voltage and said second power supply voltage is greater than zero; and control means for outputting the second input signal in accordance with the pixel data, wherein the second level setting means is constituted by a first switching element connected between the output node and the common electric potential, the first switching element having its ON/OFF state controlled in accordance with the second input signal.