Liquid crystal display device

Abstract

The liquid crystal display device includes an active matrix substrate, a counter substrate having a counter electrode, and a liquid crystal layer interposed between the active matrix substrate and the counter substrate. The liquid crystal display device further includes a plurality of scanning lines, a plurality of signal lines formed perpendicular to the plurality of scanning lines, switching elements formed in the vicinity of crossings of the plurality of scanning lines ad the plurality of signal lines, a plurality of pixel electrodes connected to the corresponding signal lines via the switching elements, and a plurality of supplemental capacitance lines formed in parallel with the corresponding scanning lines, wherein the pixel electrodes are formed over the corresponding scanning lines, and divisions of the adjacent pixel electrodes along the signal lines are located above the corresponding supplemental capacitance lines.

What is claimed is:  
     
       1. A liquid crystal display device comprising an active matrix substrate, a counter substrate having a counter electrode, and a liquid crystal layer interposed between the active matrix substrate and the counter substrate, the active matrix substrate including: 
       a plurality of scanning lines;  
       a plurality of signal lines formed perpendicular to the plurality of scanning lines;  
       switching elements formed in a vicinity of crossings of the plurality of scanning lines and the plurality of signal lines;  
       a plurality of pixel electrodes connected to corresponding ones of the signal lines via the switching elements; and  
       a plurality of supplemental capacitance lines formed in parallel with corresponding ones of the scanning lines, wherein at least some of the pixel electrodes are formed over to be in an overlapping relationship with the corresponding scanning lines, and divisions of the adjacent pixel electrodes along the signal lines are  at least one edge of the at least some of the pixel electrodes is located above  in an overlapping relationship parallel to corresponding ones of the supplemental capacitance lines.  
     
     
       2. A liquid crystal display device according to  claim 1 , wherein one of the supplemental capacitance lines is located outermost of a display region of the active matrix substrate for the pixel electrode which is located at a first peripheral side of the display region, the supplemental capacitance line being wider than the other supplemental capacitance lines and serving as a light-shielding line. 
     
     
       3. A liquid crystal display device according to  claim 2 , wherein a counter electrode signal is directly applied to the supplemental capacitance line which is located outermost of the display region and serves as the light-shielding line at a plurality of positions. 
     
     
       4. A liquid crystal display device according to  claim 2 , further comprising a light-shielding line which is formed for the pixel electrode located at a second peripheral side of the display region opposing the first peripheral side, in parallel with the supplemental capacitance line located outermost of the display region. 
     
     
       5. A liquid crystal display device according to  claim 4 , wherein a counter electrode signal is input to the light-shielding line. 
     
     
       6. A liquid crystal display device according to  claim 1 , wherein each of the switching elements is formed on a side of the corresponding scanning line nearer to a signal source from which a signal is input to the signal lines. 
     
     
       7. A liquid crystal display device according to  claim 1 , wherein an insulting  insulating film is formed between the scanning lines and the pixel electrodes, and the thickness of the insulating film is about 2 μm or more. 
     
     
       8. A liquid crystal display device according to  claim 1 , wherein each of the pixel electrodes has a cutout formed above  in an overlapping relationship parallel to the corresponding scanning line. 
     
     
       9. A liquid crystal display device according to  claim 8 , wherein each of the pixel electrodes includes two parts defined by the cutout formed above  in an overlapping relationship parallel to the corresponding scanning line and a plurality of connection portions connecting the two parts. 
     
     
       10. A liquid crystal display device according to  claim 9 , wherein the plurality of connection portions are formed at opposite ends of the pixel electrode. 
     
     
       11. A liquid crystal display device according to  claim 9 , wherein a width of at least one of the plurality of connection portions is different from a width of the other connection portions. 
     
     
       12. A liquid crystal display device comprising an active matrix substrate, a counter substrate having a counter electrode, and a liquid crystal layer interposed between the active matrix substrate and the counter substrate, the active matrix substrate including: 
       
         a plurality of scanning lines;  
       
       
         a plurality of signal lines formed perpendicular to the plurality of scanning lines;  
       
       
         switching elements formed in a vicinity of crossings of the plurality of scanning lines and the plurality of signal lines;  
       
       
         a plurality of pixel electrodes connected to corresponding ones of the signal lines via the switching elements; and  
       
       
         a plurality of supplemental capacitance lines formed in parallel with corresponding ones of the scanning lines,  
       
       
         wherein the pixel electrodes are formed in an overlapping relation with the corresponding scanning lines, and a cutout is formed for at least one of the pixel electrodes at a portion thereof in an overlapping relationship parallel to the corresponding scanning line. 
       
     
     
       13. A liquid crystal display device according to  claim 12 , wherein a pixel aperture corresponding to each of the plurality of pixel electrodes is divided into two portions by the respective scanning line. 
     
     
       14. A liquid crystal display device according to  claim 12 , wherein each of the pixel electrodes includes two parts defined by the cutout formed in an overlapping relationship parallel to the corresponding scanning line and a plurality of connection portions connecting the two parts. 
     
     
       15. A liquid crystal display device according to  claim 14 , wherein the plurality of connection portions are formed at opposite ends of the pixel electrode. 
     
     
       16. A liquid crystal display device according to  claim 14 , wherein a width of at least one of the plurality of connection portions is different from a width of the other connection portions.