Patent ID: 7906356

Claim:
A method of manufacturing an array substrate of horizontal electric field type transreflective liquid crystal display (LCD), comprising formation of a pre-preparing layer structure and formation of a post-preparing layer structure, wherein the formation of the pre-preparing layer structure comprises: a first patterning process of forming a first transparent conductive layer and a first metal layer sequentially on a base substrate, coating a first photoresist layer on the first metal layer, exposing and developing the first photoresist layer with a full tone mask to form a first photoresist pattern, etching with the first photoresist pattern to form patterns for a display region, a gate line and a gate electrode which are formed of both the first transparent conductive layer and the first metal layer; a second patterning process of forming a first insulating layer, a semiconductor layer, a doped semiconductor layer and a second metal layer on the substrate after the first patterning process, coating a second photoresist layer, exposing and developing the second photoresist layer with a first dual tone mask to form a second photoresist pattern, etching with the second photoresist pattern to form patters for a silicon island and a data line, and to expose the first metal layer in a transmissive region in a display region, ashing the second photoresist pattern and then etching again with the remained second photoresist pattern to form a channel on the silicon island, a source electrode connected with the data line and a drain electrode, and to form an electrode in the display region, wherein a reflective region of the electrode is formed of both the first transparent conductive layer and the first metal layer, and a transmissive region of the electrode is formed of the first transparent conductive layer.