Patent ID: 8134158

Claim:
A thin film transistor liquid crystal display (TFT-LCD) pixel unit, comprising: a gate line and a gate electrode formed on a substrate; a first gate insulating layer, an active layer, and a doped layer sequentially formed on the gate line and the gate electrode; and a data line, a first source/drain electrode, and a second source/drain electrode formed on the doped layer, the first and second source/drain electrodes being separated apart from each other, the data line being electrically connected to the first source/drain electrode, wherein an intercepting trench is formed on the gate line to cut off the doped layer and the active layer on the gate line; a second insulating layer covers the intercepting trench and the substrate where the gate line and the gate electrode are not formed; and a pixel electrode is formed on the second insulating layer integrally with the second source/drain electrode and contacts the doped layer on the gate electrode at a position where the second source/drain electrode is formed.