Patent ID: 7176494
Filing Date: 2007-02-13
Classification: G02F,H01L,Y10S

Abstract:
1. A thin film transistor for a liquid crystal display (LCD), comprising: a gate wiring formed on a substrate including a display region and a pad region positioned at an outer portion of the display region, said gate wiring extending in a first direction; a gate insulating film formed on the gate wiring and the substrate, for partially exposing the gate wiring; an active pattern formed on the gate insulating film; a data wiring partially overlapped with the active pattern, the data wiring formed on the gate insulating film and extending in a second direction substantially perpendicular to the first direction; an organic passivation film pattern formed on the data wiring and the gate insulating film, said organic passivation film pattern including a first via hole to partially expose the data wiring and a second via hole to partially expose the gate wiring; a pixel electrode formed on the organic passivation film pattern and connected to the data wiring through the first via hole; and, a pad electrode formed on the organic passivation film pattern and connected to the gate wiring through the second via hole, wherein the data wiring comprises a stepped portion arranged on a surface of the data wiring in the first via hole.