Liquid crystal display device

Abstract

To provide a thin liquid crystal display device equipped with the capacitance-type touch panel, and specifically the thin liquid crystal display device with a lower cost and a higher reliability. The thin liquid crystal display device includes a CF substrate and a TFT substrate formed with a transparent electrode common line, the CF substrate having a plurality of transparent lines, the transparent electrode common line being isolated into a plurality of belt-like forms by an isolation slit, and an area where the transparent line and the transparent electrode common line constitutes an upper electrode and a lower electrode of the capacitance-type touch panel. Furthermore, there are provided a redundant slit and a disconnectable point of the metal common line.

What is claimed is: 
     
         1 . A display device comprising:
 a first substrate,   a second substrate,   wherein the second substrate has a plurality of scan signal lines, a plurality of image signal lines, a plurality of first common electrodes, and a plurality of second electrodes,   the first common electrodes and the second common electrodes are extended in a same direction as the scan signal lines, and   a gap between one of the first common electrodes and one of the second common electrodes is provided in a position overlapping one of the scan signal lines.   
     
     
         2 . The display device according to  claim 1 , wherein one of the
 first common electrodes is formed over at least three of the scan signal lines, and   one of the second common electrodes is formed between a pair of the scan signal lines.   
     
     
         3 . The display device according to  claim 1 , wherein the first common electrodes and the second common electrodes are alternately arranged. 
     
     
         4 . The display device according to  claim 3 , wherein each of the first common electrodes and second common electrodes, in outside the display area, are connected to a signal line made of metal. 
     
     
         5 . The display device according to  claim 4 , wherein an adjacent pair of one of the first common electrodes and one of the second common electrodes are sharing the signal line. 
     
     
         6 . The display device according to  claim 5 , wherein the pair of one of the first common electrodes and one of the second common electrodes have a gap for wiring disconnection in the connection position with the signal line. 
     
     
         7 . The display device according to  claim 1 , wherein the first common electrodes and second common electrodes are made of a transparent conductive film. 
     
     
         8 . The display device according to  claim 1 , wherein the display device is an IPS type liquid crystal display device.