| 摘要 |
<p>In an active matrix board (10) of a liquid crystal display device, a picture element electrode (18) on an interlayer insulating film (17) and an electrode (16d) positioned on a lower layer of the interlayer insulating film (17) are electrically connected through a contact hole (17a) formed on the interlayer insulating film (17), another electrode (13) is arranged on a lower part of the electrode (16d) through a controlling insulating film (14) to face the electrode (16d), and an auxiliary capacitor is formed between the both electrodes (16d, 13). In the case where the electrode (16d) has a defect, an opening part (20) is provided, at a position on the electrode (13), corresponding to an area of the contact hole (17a). Thus, even when a defect is generated in the controlling insulating film (14) through the defective area in the electrode (16d) due to formation of the contact hole (17a), generation of leakage between the both electrodes (16d, 13) is suppressed without deteriorating an aperture ratio.</p> |
