Active matrix type liquid crystal display device

An active matrix type liquid crystal display device having a structure in which a pixel TFT is disposed in a trench in a substrate,

• wherein a hill-shaped section encloses at least two sides of the TFT, wherein an underneath light-shielding film is disposed beneath a semiconductor layer of the TFT so as to reach at least a top of said hill-shaped section and a metal electrode layer formed above the semiconductor layer of the TFT extends to the top of said hill-shaped section,
• wherein on the top of said hill-shaped section, a film thickness of an interlayer insulating film between said underneath light-shielding film and metal electrode layer is thinner than in other sections thereof, and
• wherein a portion of said semiconductor layer of the TFT constitutes a storage capacitor section and the interlayer film laid between the semiconductor layer and the underneath light-shielding film in said storage capacitor section is made thinner than in the TFT section.