Liquid crystal display device

Abstract

The object of the present invention is to prevent a light leakage from a boundary portion between the areas where the voltage to be applied to the liquid crystal varies, and reducing a light leakage on a contact hole provided for electrically connecting the first pixel electrode and the second pixel electrode in the case where the areas where the voltage to be applied to the liquid crystal varies are composed of two-layered pixel electrodes, namely, a first pixel electrode and a second pixel electrode. A liquid crystal display device of the invention includes a plurality of pixels provided on an insulating substrate, a scanning line provided on the insulating substrate which scans the pixels, liquid crystal which is interposed between the insulating substrate and a counter substrate countered to the insulating substrate, and areas where a voltage to be applied to the liquid crystal varies in one pixel, and is characterized in that a light shielding film for preventing a light leakage due to alignment disorder of the liquid crystal is provided to a boundary portion of the areas where the voltage to be applied to liquid crystal varies.

1 . A liquid crystal display device comprising a plurality of pixels provided on an insulating substrate, a scanning line provided on the insulating substrate which scans the pixels, a liquid crystal which is interposed between the insulating substrate and a counter substrate countered to the insulating substrate, and display areas within one pixel where an electric field applied to the liquid crystal, and is characterized in that at least one light shielding film or a plurality of light shielding films for preventing a light leakage due to an alignment disorder of the liquid crystal is provided to a boundary portion of the display areas where an electric field applied to the liquid crystal varies, wherein the at least one light shielding film or at least one of the plurality of the light shielding films is formed integrally with a storage capacitance line provided in parallel with the scanning line.  
     
     
         2 . The liquid crystal display device of  claim 1 , wherein the pixels are comprised of a first pixel electrode and a second pixel electrode connected via an insulating film in the display areas where the electric field to be applied to the liquid crystal varies within one pixel, and the second pixel electrode is provided on a layer above the insulating film provided on a layer above the first pixel electrode, the second pixel electrode comprises an area where the area is not overlapped on the first pixel electrode.  
     
     
         3 . (canceled)  
     
     
         4 . (canceled)  
     
     
         5 . (canceled)  
     
     
         6 . (canceled)  
     
     
         7 . The liquid crystal display device of  claim 1 , wherein a ratio of the voltage to be applied to a liquid crystal between the first pixel electrode and a counter electrode formed on a surface on the counter substrate in contact with the liquid crystal to the electric field applied to a liquid crystal between the second pixel electrode and the counter electrode falls within a range of 0.5:1.0 to 0.9:1.0.  
     
     
         8 . The liquid crystal display device of  claim 3 , wherein a ratio of the electric field applied to the liquid crystal between the pixel electrode where a part of the insulating film is removed and the counter electrode formed on the surface on the counter substrate in contact with the liquid crystal to the electric field applied to the liquid crystal between the insulating film on the pixel electrode and the counter electrode falls within a range of 0.5:1.0 to 0.9:1.0.  
     
     
         9 . (canceled)  
     
     
         10 . (canceled)  
     
     
         11 . (canceled)  
     
     
         12 . The liquid crystal display device of  claim 1 , further comprising alignment films which are provided respectively on surfaces of the insulating substrate and the counter substrate in a contact with the liquid crystal and align the liquid crystal, polarizers which are provided respectively on the surfaces of the insulating substrate and the counter substrate opposite to the surface in contact with the liquid crystal, and optical compensating films which are provided respectively between the polarizer and the insulating substrate, between the polarizer and the counter substrate where an alignment state of a further liquid crystal in the optical compensating films is stabilized.  
     
     
         13 . The liquid crystal display device of  claim 12 , wherein a product of a birefringence index Δn of the liquid crystal and a thickness d of the liquid crystal satisfies relationship: 0.30 μm≦ Δnd 0.50 μm.  
     
     
         14 . A method for manufacturing a liquid crystal device where said liquid crystal device comprising a plurality of pixels provided on an insulating substrate, a scanning line provided on the insulating substrate to scan the pixels, and liquid crystal which is interposed between the insulating substrate and a counter substrate countered to the insulating substrate, said method comprising the steps of: 
 forming display areas within one pixel where an electric field applied to the liquid crystal varies; and    forming at least one light shielding film or a plurality of light shielding films for preventing a light leakage due to alignment disorder of the liquid crystal on a boundary portion of the display areas where the electric field applied to the liquid crystal varies, wherein the at least one light shielding film or at least one of the plurality of the light shielding films is formed integrally with a storage capacitance line provided in parallel with the scanning line.    
     
     
         15 . (canceled)  
     
     
         16 . (canceled)  
     
     
         17 . (canceled)  
     
     
         18 . The liquid crystal display device of  claim 12 , wherein the liquid crystal is a discotic liquid crystal.