Patent ID: 7995026

Claim:
A sensor comprising: a first sensor transistor receiving external light and generating a first sensing current based on an amount of the received external light; a first capacitor storing a first sensing voltage based on the first sensing current from the first sensor transistor; a second sensor transistor blocked from the external light and receiving external heat and generating a second sensing current based on an amount of the received external heat; a second capacitor storing a second sensing voltage based on the second sensing current from the second sensor transistor; and a light blocking member blocking the second sensor transistor from the external light and including an opening which penetrates through an extending surface of the light blocking member and exposes the first sensor transistor to the external light, wherein both the first sensor transistor and the second sensor transistor are disposed on a same side with respect to the light blocking member, so that the external light and the external heat are received from a same direction.