Patent ID: 7550307

Claim:
A method of manufacturing active device for controlling a liquid crystal display, comprising: depositing a conductive layer, a first transparent conductive layer and an insulating layer on a substrate; defining said insulating layer, said first transparent conductive layer and said conductive layer to form a first scanning line and a second scanning line, wherein said first scanning line and said second scanning line are separated from each other; depositing a dielectric layer over said substrate and said insulating layer; defining said dielectric layer to form a first opening and a second opening, wherein said first opening is formed over said first scanning line to expose said insulating layer, said second opening is formed over said second scanning line to expose said insulating layer; depositing a second transparent conductive layer over said substrate and said dielectric layer and inside said first and second openings; defining said second transparent conductive layer to form a first top layer inside said first opening, a second top layer within said second opening, wherein said first top layer, said insulating layer and said first transparent conductive layer form a first thin film diode, said second top layer, said insulating layer and said first transparent conductive layer forming a second thin film diode, and said first thin film and said second thin film diode are respectively electrically connected to a pixel electrode.