Patent ID: 7726868

Claim:
A spread illuminating apparatus of side light type comprising: a transparent resin plate integrally composed of a light conductor plate portion and a housing frame portion, wherein an opening is provided at a side portion of the transparent resin plate, slits are provided along a boundary between the light conductor plate portion and the housing frame portion, and wherein a gate for injecting resin for the transparent resin plate is positioned outside the boundary between the light conductor plate portion and the housing frame portion and is positioned also between the opening and one of slits which are provided toward the side portion of the transparent resin plate having the opening and which are located clear of the opening; a light reflecting sheet which comprises a main body portion and flap portions extending from sides of the main body portion and bent up along the sides, and which is attached to a rear of the transparent resin plate with the flap portions inserted in the slits of the transparent resin plate; and a light source disposed in the opening of the transparent resin plate.