Patent ID: 9341768
Filing Date: 2016-05-17
CPC Classification: G02B,G02F

Claim Text:
1. A lighting device comprising: a light guide plate having at least one end surface as a light entrance surface and one plate surface as a light exit surface; a first light source opposed to a first light entrance surface that is a first end surface of the light guide plate; a second light source opposed to a second light entrance surface that is an end surface opposite from the first light entrance surface of the light guide plate, the second light source being away from the second light entrance surface with a distance relatively greater than a distance between the first light source and the first light entrance surface; a positioning portion configured to position the light guide plate in a direction in which the first light source, the light guide plate, and the second light source are arranged, and to position the light guide plate with respect to the first light source and the second light source, the positioning portion being arranged to be away from the second light entrance surface with a distance relatively greater than a distance between the positioning portion and the first light entrance surface; and a chassis where the first light source, the light guide plate, and the second light source are arranged, the chassis including the positioning portion that is fitted to a part of the light guide plate with concavo-convex fitting.