Patent ID: 8089476
Filing Date: 2012-01-03
Classification: G02F,G06F,G09G

Abstract:
1. A liquid crystal device comprising: a selection line that is provided in a line direction; a first signal line and a second signal line that are provided in a column direction; a first pixel portion and a second pixel portion that are provided at positions corresponding to intersections of the selection line and the signal lines; a photosensor portion that is provided in correspondence with the second pixel portion; a first power line that is provided in the line direction; and a sense line that is provided in the column direction, wherein each of the pixel portions includes a first switching element and a liquid crystal, wherein the first switching element loads a display signal supplied through a corresponding one of the signal lines as a selection signal supplied through the selection line is asserted, wherein the liquid crystal exhibits a bright state corresponding to the display signal that is loaded by the first switching element, wherein the second pixel portion adjust the amounts of light that enter the photosensor portion, wherein the photosensor portion includes a photoelectric conversion element, a capacitive element, a second switching element, and a readout portion, wherein the photoelectric conversion element generates an electric current of which the magnitude corresponds to the amount of light received, wherein one end of the capacitive element is electrically connected to the photoelectric conversion element, wherein the second switching element resets the one end of the capacitive element to a reset voltage that is supplied through the first power line, wherein the readout portion outputs, to the sense line, an output signal of which the magnitude corresponds to a voltage of the one end of the capacitive element, and wherein the second switching element is controlled to any one of an on state or an off state on the basis of the selection signal that is supplied through the selection line.