| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a horizontal electric field system liquid crystal display device with a wide view angle, a high numerical aperture and high contrast by making a common electrode a double layer. SOLUTION: An active matrix substrate is constituted of a thin film transistor formed on a transparent insulation substrate, a scan signal electrode 101 connected to the gate electrode of this thin film transistor, a video signal electrode 5 connected to the drain electrode 501 of the thin film transistor, a liquid crystal drive electrode 4 connected to the source electrode 401 of the thin film transistor and a common electrode 2 opposing to this liquid crystal drive electrode 4 on the insulation substrate. This common electrode 2 is constituted of two layers, and an upper layer common electrode 202 is formed on the same layer as the liquid crystal drive electrode 4, and a lower layer common electrode 201 is constituted as a light shield layer respectively covering a gap between the upper layer common electrode 202 and the video signal electrode 5, and the gap between the drain electrode 501 and the liquid crystal drive electrode 4. Further, the upper layer common electrode 202 strides across the scan signal electrode 101, and makes electrically connect adjacent lower layer common electrodes 201 each other, and the common electrode 2 is made low resistance.</p> |
