Light guiding plate

A light guiding plate for guiding light from a light source to illuminate a liquid crystal cell, the light guiding plate comprising:

• a reflector located on an opposite side of the plate from the light source, wherein the reflector reflects light from the light source;
• a first surface for selectively transmitting or reflecting light;
• a second surface, which is flat, located between the cell and the first surface, wherein the second surface selectively transmits or reflects light;
• a first region, which is formed on the first surface at a location that is relatively near the light source, the first region including:
• a first inclined face for reflecting light from the light source to guide light to the reflector;
• and
• a second inclined face for reflecting light from the light source to the second surface so that the second surface emits light;
• and
• a second region, which is formed on the first surface at a location that is relatively far from the light source, the second region including:
• a third inclined face for reflecting light from the light source to the second so that the second surface emits light;
• and
• a fourth inclined face for reflecting light reflected by the reflector to the second surface so that the second surface emits light.