Patent ID: 8330916
Filing Date: 2012-12-11
Classification: G02F,H01L

Abstract:
1. A liquid crystal display (LCD) comprising: a pixel electrode and a buffer layer formed of a same conductive material and on an insulation substrate, wherein the buffer layer is spaced apart from the pixel electrode and is formed on a same level with the pixel electrode; a source electrode formed on the buffer layer and of a material different from that of the conductive material used in forming the pixel electrode and the buffer layer; a drain electrode formed on a first portion of the pixel electrode, where a second portion of the pixel electrode is not covered by the drain electrode; an active layer formed on and extending between the source electrode and the drain electrode; a gate electrode formed above the active layer; and a first gate insulating layer interposed between the gate electrode and the active layer; wherein the second portion of the pixel electrode is not covered by the first gate insulating layer; and wherein the same conductive material used in forming the buffer layer and the pixel electrode includes a transparent conductive film wherein at least an upper portion thereof is of a crystalline structure that resists being etched more so than an amorphous version of the same conductive material.