Patent ID: 8089600

Claim:
An active device array substrate, comprising: a substrate, comprising a display region and a periphery circuit region; an active device array, disposed in the display region of the substrate; a black matrix, disposed on the substrate; a color filter, disposed on the substrate; at least a pad, located in the display region or the periphery circuit region, wherein the pad is formed by at least one of a first conductive layer and a second conductive layer, and the first conductive layer is below the second conductive layer; and at least a contact window, disposed on the pad, so that a third conductive layer above the pad is connected to the pad through the contact window, wherein the contact window is jointly surrounded by at least two different types of light-shielding patterns, and each of the light-shielding patterns only surrounds a part of a periphery of the contact window, and wherein the at least two types of light-shielding patterns are selected from at least two of the black matrix, the color filter, the first conductive layer and the second conductive layer.