Liquid crystal display device and manufacturing method thereof

Abstract

A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal supported between the first substrate and the second substrate. A signal line, a pixel electrode, and a thin film transistor are formed on the first substrate and electrically connected to the signal line and the pixel electrode, and a drain driver supplies a gray scale voltage to the pixel electrode. Plural voltage-dividing resistance elements are formed on the first substrate, and supply plural gray scale reference voltages to the drain driver. The plural voltage-dividing resistance elements and the signal line are constructed of a same wiring material.

1 . A liquid crystal display device comprising: 
 a first substrate, a second substrate, and a liquid crystal supported between the first substrate and the second substrate;    a signal line, a pixel electrode, and a thin film transistor formed on the first substrate and electrically connected to the signal line and the pixel electrode, a drain driver supplying a gray scale voltage to the pixel electrode; and    plural voltage-dividing resistance elements formed on the first substrate, and supplying plural gray scale reference voltages to the drain driver;    wherein the plural voltage-dividing resistance elements and the signal line are constructed of a same wiring material.    
   
   
       2 . A liquid crystal display device according to  claim 1 , wherein the signal line is a gate signal line.  
   
   
       3 . A liquid crystal display device according to  claim 2 , wherein the plural voltage-dividing resistance elements comprise first plural resistance elements, one side of the first plural resistance elements being electrically connected and an other side of the first plural resistance elements not being electrically connected.  
   
   
       4 . A liquid crystal display device according to  claim 3 , wherein the other side of the first plural resistance elements are cut by laser.  
   
   
       5 . A liquid crystal display device according to  claim 4 , wherein the one side of the first plural resistance elements are electrically connected by the same wiring material.  
   
   
       6 . A liquid crystal display device according to  claim 1 , wherein the plural voltage-dividing resistance elements comprise first plural resistance elements, one side of the first plural resistance elements being electrically connected and an other side of the first plural resistance elements not being electrically connected.  
   
   
       7 . A liquid crystal display device according to  claim 6 , wherein the other side of the first plural resistance elements are cut by laser.  
   
   
       8 . A liquid crystal display device according to  claim 7 , wherein the one side of the first plural resistance elements are electrically connected by the same wiring material.  
   
   
       9 . A liquid crystal display device according to  claim 1 , further comprising a short-circuiting wiring, and an insulating film formed between the short-circuiting wiring and the plural voltage-dividing resistance elements; 
 wherein the plural voltage-dividing resistance elements comprises a other plural resistance elements, one side of the other plural resistance elements being electrically connected, and an other side of the other plural resistance elements being electrically connected by the short-circuiting wiring.    
   
   
       10 . A liquid crystal display device according to  claim 9 , wherein the one side of the other plural resistance elements are electrically connected by the same wiring material.  
   
   
       11 . A liquid crystal display device according to  claim 1 , further comprising a short-circuiting wiring, and an insulating film formed between the short-circuiting wiring and the plural voltage-dividing resistance elements; 
 wherein the plural voltage-dividing resistance elements comprise a further resistance element, one side of the further resistance element being electrically connected to the short-circuiting wiring, and an other side of the further resistance element being electrically connected to the short-circuiting wiring via a contact hole formed in the insulating film, wherein the contact hole is formed by laser cut.