Liquid crystal display device

Abstract

According to one embodiment, a liquid crystal display device includes a first substrate including a pixel electrode which is located in an inside surrounded by a first gate line, a second gate line, a first source line and a second source line, and a second substrate including a common electrode. The pixel electrode includes a contact portion, two or more main pixel electrodes, and a connection portion connecting the main pixel electrodes. The common electrode includes main common electrodes located above the first gate line, above the second gate line and above a point between the main pixel electrodes, and sub-common electrodes located above the first source

1 - 20 . (canceled) 
     
     
         21 . A liquid crystal display device, comprising:
 a first substrate comprising a first gate line and a second gate line which extend in a first direction, and are disposed with a first pitch in a second direction crossing the first direction, a storage capacitance line which extends in the first direction between the first gate line and the second gate line, a first source line and a second source line which extend in the second direction, and are disposed with a second pitch in the first direction, the second pitch being greater than the first pitch, a first switching element electrically connected to the first gate line and the first source line, a second switching element electrically connected to the second gate line and the first source line, a transparent electrode which is electrically connected to a drain electrode extending in the second direction in the second switching element, the transparent electrode comprising a first portion and a second portion which extend in the first direction;   a second substrate comprising a common electrode; and   a liquid crystal layer including liquid crystal molecules held between the first substrate and the second substrate;   wherein the storage capacitance line includes an extension portion which is extended in the second direction between the first switching element and the second switching element, and   the transparent electrode is opposed to the extension portion between the first switching element and the drain electrode.   
     
     
         22 . The liquid crystal display device of  claim 21 , wherein the first switching element, the second switching element, and the extension portion of the storage capacitance line are located closer to the first source line than to the second source line. 
     
     
         23 . The liquid crystal display device of  claim 22 , wherein a first distance in the second direction between the storage capacitance line and the first gate line is different from a second distance in the second direction between the storage capacitance line and the second gate line. 
     
     
         24 . The liquid crystal display device of  claim 21 , wherein the first substrate further comprises gate shield electrodes which are opposed to the first and second gate lines and have same potential as the common electrode. 
     
     
         25 . The liquid crystal display device of  claim 21 , wherein the first substrate further comprises source shield electrodes which are opposed to the first and second source lines and have same potential as the common electrode. 
     
     
         26 . The liquid crystal display device of  claim 21 , wherein in a state in which no electric field is produced between the transparent electrode and the common electrode, an initial alignment direction of the liquid crystal molecules is substantially parallel to the first direction. 
     
     
         27 . The liquid crystal display device of  claim 26 , wherein in the state in which no electric field is produced between the transparent electrode and the common electrode, the liquid crystal molecules are splay-aligned or homogeneously aligned between the first substrate and the second substrate. 
     
     
         28 . The liquid crystal display device of  claim 21 , further comprising a first polarizer which is disposed on an outer surface of the first substrate, and a second polarizer which is disposed on an outer surface of the second substrate, a first polarization axis of the first polarizer and a second polarization axis of the second polarizer being perpendicular to each other, and the first polarization axis being perpendicular or parallel to an initial alignment direction of the liquid crystal molecules. 
     
     
         29 . The liquid crystal display device of  claim 21 , wherein the common electrode comprises main common electrodes located above the first gate line, above the second gate line, and between the first portion and the second portion, and extending in the first direction, and sub-common electrodes located above the first source line and above the second source line, and extending in the second direction. 
     
     
         30 . The liquid crystal display device of  claim 21 , wherein the first portion is located above the storage capacitance line. 
     
     
         31 . The liquid crystal display device of  claim 30 , wherein the first portion is wider than the storage capacitance line. 
     
     
         32 . The liquid crystal display device of  claim 21 , wherein the first substrate further comprises:
 a gate electrode which is a part of the second gate line; a first insulation film which covers the gate electrode and the storage capacitance line;   a semiconductor layer formed on the first insulation film;   a source electrode which is formed on the first insulation film, and is a part of the first source line being in contact with the semiconductor layer;   the drain electrode which is formed on the first insulation film, and is in contact with the semiconductor layer; and   a second insulation film which covers the semiconductor layer and the source electrode, and intervenes between the drain electrode and the transparent electrode,   wherein the transparent electrode is electrically connected to the drain electrode through a contact hole formed in the second insulation film.   
     
     
         33 . The liquid crystal display device of  claim 32 , wherein the second insulation film includes a first layer which covers the semiconductor layer, the source electrode, and the drain electrode, and a second layer which intervenes between the first layer and the transparent electrode. 
     
     
         34 . The liquid crystal display device of  claim 32 , wherein the source electrode includes a first area and a second area which extend in the second direction, and are arranged in the first direction, and
 the drain electrode extends in the second direction between the first area and the second area.   
     
     
         35 . The liquid crystal display device of  claim 32 , wherein the gate electrode projects in the second direction toward the extension portion.