Liquid crystal display device

A liquid crystal display device, comprising:

• a first electrode substrate having:
• a transparent insulating substrate;
• scanning lines and signal lines arranged crossing each other on said transparent insulating substrate in a matrix pattern;
• a plurality of pixel electrodes formed at positions enclosed by said scanning lines and said signal lines, respectively;
• and
• a plurality of poly-crystalline silicon thin film transistors formed on said transparent insulating substrate via a light shading film and an insulating film, said light shading film being an amorphous semiconductor film serving to prevent light from being incident upon an active layer of said transistors, a source electrode of each of said transistors being connected to said signal line and a drain electrode of each of said transistors being connected to said pixel electrode;
• a second electrode substrate having an opposing electrode;
• and
• a liquid crystal encapsulated between said first and second electrode substrates, wherein an optical density value OD.sub.2 of said light shading film is one or more in visible light range, the optical density value OD.sub.2 being expressed as ##EQU3## where .lambda. denotes light wavelength;
• T(.lambda.) denotes transmissivity of each wavelength;
• a and b denote both ends of visible rays as a=400 nm and b=700 nm.

A liquid crystal display device, comprising:

• a first electrode substrate having:
• a transparent insulating substrate;
• scanning lines and signal lines arranged crossing each other on said transparent insulating substrate in a matrix pattern;
• a plurality of pixel electrodes formed at positions enclosed by said scanning lines and said signal lines, respectively;
• and
• a plurality of poly-crystalline silicon thin film transistors formed on said transparent insulating substrate via a light shading film and an insulating film, said light shading film being an amorphous semiconductor film serving to prevent light from being incident upon an active layer of said transistors, a source electrode of each of said transistors being connected to said signal line and a drain electrode of each of said transistors being connected to said pixel electrode;
• a second electrode substrate having an opposing electrode;
• and
• a liquid crystal encapsulated between said first and second electrode substrates, wherein a second light shading layer formed by the same layer as said light shading layer is formed in a region between a pair of adjacent ones said pixel electrodes.