A liquid crystal display device intended for increasing the ON-current of a TFT in the pixel while suppressing variation of the ON-current, in which a semiconductor layer and a first n + -a-Si layer in the TFT are formed continuously by plasma CVD. The semiconductor layer and the first n + -a-Si layer are patterned simultaneously. Then, a second n + -a-Si layer is formed so as to cover the upper surface of the first n + -a-Si layer and the side portion of the semiconductor layer. The ON-current can be increased and variation of the ON-current of the TFT can be decreased by forming the first n + -a-Si layer continuously over the semiconductor layer.

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3 claims

Classifications

3 codes

IPC · International Patent Classification

Section G — Physics

G02F1/136

USPC · US Patent Classification

349/43349/42

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2.6 y

945 days filing → grant

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Examiner

Mark Teets

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