Unit light guide plate, light guide plate unit, planar illuminating device and liquid crystal display device

摘要: A unitary light guide plate as well a unit include exit plane, thick portion located substantially on center of the thin end portions formed both sides portion, half parallel groove backside plane to accommodate linearly arranged sources, inclined back so become thinner from portions, and scattering means for entering sources accommodated in into propagated through toward portion. includes point-like source, emitting light, facing lateral connected backside, entrance disposing source causing incident enter an inside thereof, wherein distance between becomes lager with increasing