Au Optronics Corporation

Ko-Ching Yang

Weng-Bing Chou

Chin-Yuen Liao

An active device array substrate, including a substrate, a plurality of pixel units, a plurality of first lead wires, an insulating layer, a plurality of second lead wires and a passivation layer, is provided. The active device array substrate has a display area and a peripheral area. The pixel units are disposed in the display area of the substrate. The first lead wires and the second lead wires are disposed in the peripheral area, and electrically connected to the pixel units respectively. The first lead wires have two opposite first tips. Moreover, the first lead wires are covered by the insulating layer having at least a first opening to expose the two opposite first tips. Additionally, the second lead wires are covered by the passivation layer.

Active device array substrate

A method for manufacturing liquid crystal display substrates comprises the steps of: (a) providing a substrate having a transparent electrode layer and a metal layer; (b) forming a patterned photoresist layer through half-tone or diffraction; (c) defining signal line area and thin film diode area, or pixel area and conductive electrode-lines by etching; and (d) forming an oxidized layer on partial surface of the metal layer. The disclosure here provides a patterning process of lithography and etching with one photolithography of one single mask in the manufacturing of liquid crystal display substrates. Furthermore, the method disclosed here can effectively increase the yield of manufacturing, and reduce the cost of manufacturing.

Growing community of inventors

Taoyuan, Taiwan

Ko-Ching Yang