Patent ID: 6875645

Claim:
A method of forming a pixel structure, comprising the steps of: forming a gate and a scan line having connection with the gate over a substrate; forming an insulation layer over the substrate covering the gate and the scan line; forming a channel layer over the insulation layer above the gate; forming source/drain terminals over the channel layer and a data line having connection with one of the source/drain terminals over the insulation layer, wherein the gate, the channel layer and the source/drain terminal together constitute a thin film transistor; forming a passivation layer over the substrate covering the thin film transistor; forming a photoresist layer over the passivation layer; conducting a back exposure process using the source/drain terminals, the scan line and the data line as a mask and chemically developing the photoresist layer to form a patterned photoresist layer; etching the passivation layer and the insulation layer using the patterned photoresist layer as an etching mask to expose a sidewall of the source/drain terminal; removing the patterned photoresist layer; and forming a pixel electrode over the passivation layer, wherein the pixel electrode and the drain terminal are electrically connected through the sidewall of the drain terminal.