| 摘要 |
PROBLEM TO BE SOLVED: To prevent a TFT from being electrostatically damaged in the signal line drive circuit of a liquid crystal display panel. SOLUTION: In a semiconductor circuit, the gate electrode of the second TFT 52 having the semiconductor layer 52a provided on a glass substrate is connected to the second separated wiring 48 for constituting second gate wiring. The second separated wiring 48 is electrically isolated from the first separated wiring 46 for constituting the second gate wiring. The semiconductor layer 52a of the second TFT 52, the first separated wiring 46, and the second separated wiring 48 are covered with an interlayer insulating film. The source region and the drain region in the semiconductor layer 52a are respectively electrically connected to the power source supply line 43 and output wiring 44 formed on the interlayer insulating film. The second separated wiring 48 has a length from the semiconductor layer 52a becoming 150-300μm. COPYRIGHT: (C)2005,JPO&NCIPI
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