Increasing lcd aperture ratios

Abstract

A liquid crystal display includes an insulating substrate, a semiconductor, a gate insulating layer, a gate line, an interlayer insulating layer, a data line, a drain electrode, a passivation layer, and a pixel electrode. The semiconductor is formed on the insulating substrate and includes source, drain, and channel regions. The gate line is formed on the gate insulating layer over the semiconductor, and overlaps the channel region thereof. The data line is formed on the interlayer insulating layer and has a source electrode electrically connected to the source region and a drain electrode electrically connected to the drain region. The passivation layer is formed on the data line and drain electrode. The pixel electrode is formed on the passivation layer, and electrically connected to the drain electrode. The data line overlaps the drain region.

1 . A liquid crystal display, comprising:
 an insulating substrate;   a semiconductor formed on the insulating substrate, including a source region, a drain region, and a channel region;   a gate insulating layer formed on the semiconductor;   a gate line formed on the gate insulating layer and overlapping the channel region;   an interlayer insulating layer formed on the gate line;   a data line formed on the interlayer insulating layer and having a source electrode electrically connected to the source region;   a drain electrode electrically connected to the drain region;   a passivation layer formed on the data line and drain electrode; and,   a pixel electrode formed on the passivation layer and electrically connected to the drain electrode,   wherein the data line overlaps the drain region; and   wherein the pixel electrode comprises a plurality of sub-electrodes, each having a quadrangular shape with rounded corners.   
   
   
       2 . The liquid crystal display of  claim 1 , wherein:
 a plurality of the pixel electrodes is formed on the substrate;   the pixel electrodes are aligned in a matrix;   each of the pixel electrodes is disposed between two pixel electrodes of an adjacent pixel row so that three adjacent pixel electrodes form a triple pixel region; and,   the semiconductor extends through two adjacent triple pixel regions.   
   
   
       3 . The liquid crystal display of  claim 2 , wherein:
 the source electrode and the drain electrode are respectively connected to the source region and the drain region through first and second contact holes formed in the interlayer insulating layer, and   the first and second contact holes are disposed in an associated one of the triple pixel regions.   
   
   
       4 . The liquid crystal display of  claim 2 , wherein each of the triple pixel regions is defined by corners of two laterally adjacent pixel electrodes and one edge of a vertically adjacent pixel electrode. 
   
   
       5 . The liquid crystal display of  claim 2 , further comprising:
 a second substrate disposed in facing opposition to the insulating substrate;   a light blocking member formed on the second substrate;   a color filter formed in a region defined by the light blocking member; and,   a common electrode having a plurality of cutouts formed on the color filter.   
   
   
       6 . The liquid crystal display of  claim 5 , wherein the light blocking member comprises portions respectively corresponding to each of the triple pixel regions. 
   
   
       7 . The liquid crystal display of  claim 5 , wherein each cutout is disposed over the center of a corresponding one of the sub-electrodes. 
   
   
       8 . The liquid crystal display of  claim 5 , wherein color filters corresponding to each of the three pixel electrodes of each triple pixel region displays a respective one of red, green, and blue colors.