Patent ID: 8446390

Claim:
An electro-optical device comprising: a plurality of pixel portions formed in a display region on a substrate; and a plurality of photodetecting circuits corresponding to the pixel portions, each photodetecting circuit including an optical sensor portion including a first light-receiving element which is formed in the display region and shows light-receiving sensitivity with respect to an incident visible ray which enters a display surface, a second light-receiving element which is formed in the display region and shows light-receiving sensitivity with respect to an incident infrared ray which enters the display surface, and a detecting unit which detects a pointing unit which points the display surface on the basis of a sum of the light-receiving sensitivity with respect to the incident visible ray and the light-receiving sensitivity with respect to the incident infrared ray, and a light quantity adjustment portion configured to adjust, for each respective pixel portion, the amount of incident visible rays which enter the display surface and are received by the respective first light-receiving element, and wherein the first and second light-receiving elements are electrically connected in parallel to each other such that a cathode terminal of the first light-receiving element is directly connected to a cathode terminal of the second light-receiving element, and an anode terminal of the first light-receiving element is directly connected to an anode terminal of the second light-receiving element.