Patent · US Expired

Thin film transistor array panel for a liquid crystal display

US6849873B2 · kind B2 · utility

15Cited by
6References
29Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 25, 2002
Grant dateFeb 1, 2005
Priority date
Expiry dateMar 22, 2023

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S438/949
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In liquid crystal display device having a multi-layer conductive layer, such conductive layer is formed using a photoresist pattern having different thicknesses depending on the position. Upper layer of the gate pad is removed using an etch mask of the photoresist pattern of different thickness. A gate insulating layer, a semiconductor layer, and an ohmic contact layer are sequentially formed. A conductive material is deposited and patterned to form a data wire. Finally passivation layer is formed and an indium tin oxide layer is deposited and patterned to form a pixel electrode, a redundant gate pad, and a redundant data pad.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.