| abstract |
(57) [Summary] [Object] To provide an active matrix liquid crystal display device having a high aperture ratio. In a liquid crystal display device in which a liquid crystal layer is controlled by a horizontal electric field parallel to a substrate to display an image, the horizontal electric field is applied to a black matrix 104 and a pixel electrode 10. Form with 6. That is, the common electrode and the black matrix, which are conventionally provided separately, are made common. The black matrix 104 and the pixel line 105 are the third The storage capacitor is formed in a region overlapping with the interlayer insulating film. Since this storage capacitor utilizes the entire area of the black matrix 104 that covers the thin film transistor, a sufficient capacitance can be secured even when the electrode width and the wiring width are further miniaturized. |