The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2000
Filed:
May. 05, 1999
Seong Su Lee, Shihueng-shi, KR;
LG. Philips LCD Co., Ltd., Seoul, KR;
Abstract
A method for manufacturing a liquid crystal display includes the steps of forming a gate bus line on a substrate by using a first metal, forming a gate electrode, a second gate bus line and a gate pad on the substrate, by using a second metal, forming a gate insulating layer on the substrate including the gate bus line, the gate electrode, the gate pad and the second gate bus line, by using a first insulating material, selectively forming a semiconductor layer and an impure semiconductor layer on the gate insulating layer, forming a source electrode, a drain electrode, a source bus line and a source pad on the substrate including the impure semiconductor layer, by using a third metal, removing a portion of the impure semiconductor layer exposed between the source electrode and the drain electrode by etching, using the source electrode and the drain electrode as masks, forming a protection layer on the substrate including the source electrode and the drain electrode, by using a second insulating material, forming a drain contact hole on the drain electrode, a source pad contact hole on the source pad and a gate pad contact hole on the gate pad, and forming a pixel electrode on the substrate having the protection layer, using a conductive material.