| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid crystal display device which is made in system-on-panel structure without complicating processes for TFTs and further can inhibit cost increase. SOLUTION: The liquid crystal display is characterized in that: a pixel part is provided with a liquid crystal element and a pixel having a TFT controlling a voltage applied to the liquid crystal element; a TFT that a driving circuit has and the TFT controlling the voltage applied to the liquid crystal element have a gate electrode, a gate insulating film formed on the gate electrode, a 1st semiconductor film overlapping with the gate electrode across the gate insulating film, and a couple of 2nd semiconductor films formed on the 1st semiconductor film; impurities which impart a one-conductivity type are added to the couple of 2nd semiconductor films; and the 1st semiconductor film is formed of a semiamorphous semiconductor. COPYRIGHT: (C)2005,JPO&NCIPI |
