Color filter substrate and method of fabricating the same

Abstract

A color filter substrate for a liquid crystal display device includes a polarizing substrate, a black matrix positioned on the polarizing substrate, a color filter layer positioned on the black matrix, and a common electrode positioned on the color filter layer.

What is claimed is:  
     
         1 . A color filter substrate for a liquid crystal display device, comprising: 
 a polarizing substrate;    a black matrix positioned on the polarizing substrate;    a color filter layer positioned on the black matrix; and    a common electrode positioned on the color filter layer.    
     
     
         2 . The color filter substrate according to  claim 1 , wherein the polarizing substrate functions as a polarizer.  
     
     
         3 . The color filter substrate according to  claim 1 , wherein the polarizing substrate includes a plastic material.  
     
     
         4 . The color filter substrate according to  claim 3 , wherein the polarizing substrate includes a polyvinyl alcohol material.  
     
     
         5 . The color filter substrate according to  claim 1 , wherein the color filter layer is formed by a thermal transfer method.  
     
     
         6 . The color filter substrate according to  claim 5 , further comprising an adhesive layer disposed between the polarizing substrate and the color filter layer.  
     
     
         7 . The color filter substrate according to  claim 1 , wherein the color filter layer includes three sub-color filters of red, green, and blue.  
     
     
         8 . The color filter substrate according to  claim 1 , wherein the black matrix is formed by a thermal transfer method.  
     
     
         9 . The color filter substrate according to  claim 8 , further comprising an adhesive layer disposed between the polarizing substrate and the black matrix.  
     
     
         10 . The color filter substrate according to  claim 8 , wherein the black matrix includes a black resin material.  
     
     
         11 . The color filter substrate according to  claim 10 , wherein the black resin material includes carbon.  
     
     
         12 . The color filter substrate according to  claim 1 , further comprising an alignment layer on the common electrode.  
     
     
         13 . A method of fabricating a color filter substrate for a liquid crystal display device, comprising steps of: 
 forming a black matrix on a polarizing substrate;    forming a color filter layer on the black matrix; and    forming a common electrode on the color filter layer.    
     
     
         14 . The method according to  claim 13 , wherein the polarizing substrate functions as a polarizer.  
     
     
         15 . The method according to  claim 13 , wherein the polarizing substrate includes a plastic material.  
     
     
         16 . The method according to  claim 13 , wherein the step of forming a color filter layer includes: 
 aligning a first transcription film having a first color filter layer, a light-to-heat conversion layer, and a supporting film, sequentially formed on the polarizing substrate including the black matrix;    performing a first thermal transfer process on a first portion of the first transcription film; and    removing the first transcription film except for the first portion where the first thermal transfer process is performed.    
     
     
         17 . The method according to  claim 16 , wherein the step of performing a first thermal transfer process includes irradiating a laser beam onto the first transcription film.  
     
     
         18 . The method according to  claim 16 , further comprising steps of aligning a second transcription film having a second color filter layer, performing a second thermal transfer process on a second portion of the second transcription film, and removing the second transcription film except for the second portion where the second thermal transfer process is performed.  
     
     
         19 . The method according to  claim 18 , wherein the step of performing a second thermal transfer process includes irradiating a laser beam onto the second transcription film.  
     
     
         20 . The method according to  claim 18 , further comprising steps of aligning a third transcription film having a third color filter layer, performing a third thermal transfer process on a third portion of the third transcription film, and removing the third transcription film except for the third portion where the third thermal transfer process is performed.  
     
     
         21 . The method according to  claim 20 , wherein the step of performing a third thermal transfer process includes irradiating a laser beam onto the third transcription film.  
     
     
         22 . The method according to  claim 16 , wherein the first transcription film includes an adhesive layer on a side of the first color filter layer facing the polarizing substrate.  
     
     
         23 . The method according to  claim 13 , wherein the step of forming a black matrix includes: 
 aligning a transcription film having a black resin layer, a light-to-heat conversion layer, and a supporting film, sequentially formed onto the polarizing substrate;    selectively performing a thermal transfer process on a first portion of the transcription film; and    removing the transcription film except for the first portion where the thermal transfer process is performed.    
     
     
         24 . The method according to  claim 23 , wherein the black resin layer includes carbon.  
     
     
         25 . The method according to  claim 23 , wherein the transcription film includes an adhesive layer on a side of the black resin layer facing the polarizing substrate.  
     
     
         26 . The method according to the  claim 13 , further comprising forming an alignment layer on the common electrode.  
     
     
         27 . A method of fabricating a color filter substrate for a liquid crystal display device, comprising steps of: 
 aligning a first transcription film having a black resin layer, a first light-to-heat conversion layer, and a first supporting film, sequentially formed onto a polarizing substrate;    selectively performing a first thermal transfer process on a first portion of the first transcription film;    removing the first transcription film except for the first portion where the first thermal transfer process is performed to form a black matrix on the polarizing substrate;    aligning a second transcription film having a color filter layer, a second light-to-heat conversion layer, and a second supporting film, sequentially formed onto the polarizing substrate including the black matrix;    selectively performing a second thermal transfer process on a first portion of the second transcription film;    removing the second transcription film except for the first portion of the second transcription film where the second thermal transfer process is performed to form a color filter on the polarizing substrate including the black matrix; and    forming a common electrode on the color filter.