Patent ID: 7226199

Claim:
A lighting unit comprising a light guiding plate, a light source disposed so as to face an end face of the light guiding plate, a reflector disposed so as to surround the light source, a housing disposed so as to have a light guiding plate-retaining portion retaining at least the reflector and being partially interposed between the light source and the end face of the light guiding plate to retain the light guiding plate, and a reflecting sheet disposed on one of principal surfaces of the light guiding plate, the lighting unit being configured so that light from the light source enters into the end face of the light guiding plate and goes out from another principal surface of the light guiding plate, characterized in that: the reflecting sheet is disposed so that an edge thereof is bent so as to be positioned between the light guiding plate-retaining portion of the housing and the end face of the light guiding plate.