It is intended to provide a technique of separately forming {HEAD ~ thin film transistors} disposed in a peripheral circuit area and those disposed in a pixel area in accordance with characteristics required therefor in {TAIL ~ a manufacturing process} of semiconductor devices to constitute a liquid crystal display device 
It is intended to provide a technique of separately forming { HEAD ~ thin film transistors } disposed in a peripheral circuit area and those disposed in a pixel area in accordance with characteristics required therefor in { TAIL ~ a manufacturing process } of semiconductor devices to constitute a liquid crystal display device
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