Patent ID: 8435814
Filing Date: 2013-05-07
Classification: G02F

Abstract:
1. A method for fabricating a liquid crystal display device, comprising: forming a gate line and a gate electrode connected to the gate line on a lower substrate by patterning a first metal layer using a first reverse tapered photo-resist pattern as a mask in a first etching process; forming a data line crossing the gate line to define a pixel region, a source electrode connected to the data line, and a drain electrode facing the source electrode on the lower substrate by patterning a second metal layer using a second reverse tapered photo-resist pattern as a mask in a second etching process; forming a pixel electrode in the pixel region connecting to the drain electrode on the lower substrate; and forming a common electrode on a upper substrate facing the lower substrate to form a vertical electric field with the pixel electrode, wherein the first and second reverse tapered photo-resist patterns, each has a bottom width of about 4.5 μm, wherein the gate line is disposed under the first reverse tapered photo-resist pattern, and wherein a first width of a top surface of the gate line is narrower than a second width of a bottom surface of the gate line, and the second width of the bottom surface of the gate line is narrower than a third width of a bottom surface of the first reverse tapered photo-resist pattern wherein the data line is disposed under the second reverse tapered photo-resist pattern, and wherein a first width of a top surface of the data line is narrower than a second width of a bottom surface of the data line, and the second width of the bottom surface of the data line is narrower than a third width of a bottom surface of the second reverse tapered photo-resist pattern.