Patent ID: 8624885

Claim:
An electro-optical device including an electro-optical panel, a display area of the electro-optical panel being surrounded by a peripheral sealing member, comprising: a first light-receiving sensor that receives external light; and a second light-receiving sensor that is connected to the first light-receiving sensor and that is shielded from the external light received by the first light-receiving sensor; and a light detection circuit configured to determine an illuminance of the external light based on a difference in a first electrical signal output from the first light-receiving sensor and a second electrical signal output from the second light-receiving sensor, wherein the second light-receiving sensor is located at a position at which the second light-receiving sensor is covered by the peripheral sealing member to block or shield external light from the second light-receiving sensor, and wherein the second light-receiving sensor is at least partially embedded within the peripheral sealing member.