Patent ID: 6962430
Filing Date: 2005-11-08
Classification: G02B,G02F

Abstract:
1. A panel light source device comprising; a light guide plate having a front face, a rear face, a first side face and a second side face opposite to said first side face; an optical sheet provided adjacent said front face of the light guide plate; a light emitter arranged to cause light to enter said first side face of the light guide plate; a reflecting sheet, provided facing said rear face of the light guide plate to cover all over said rear face of the light guide plate, a first end of which sheet extends around the light emitter to reach said front face of the light guide plate, and a second end of which sheet is provided oppositely to said second side face of the light guide plate; and a case, at least partly surrounding the light guide plate, the light emitter and the reflecting sheet, said case being constituted of a front face case and a rear face case engaged with the front face case; and a reflecting sheet contact section extending from a wall of the case toward an interior of the case, to come into contact with said reflecting sheet at points laterally spaced from the light guide plate, to thereby sandwich a peripheral portion of said reflecting sheet between said reflecting sheet contact section and said light guide plate, and to prevent creation of any clearance between said reflecting sheet and said light guide plate.