Patent ID: 9116272
Filing Date: 2015-08-25
Classification: G02B

Abstract:
1. A lighting device comprising: a light guide plate which includes a first main surface, a second main surface which is opposite to the first main surface, and a plurality of side end surfaces each of which intersect with the first main surface and the second main surface; and a plurality of light-emitting elements arranged along a first side end surface among the plurality of side end surfaces; wherein the first main surface includes a first diffusing area on which a plurality of first diffusing patterns are formed and an outer edge area arranged between the first diffusing area and the first side end surface, the plurality of light emitting elements include a first light emitting element, a second light emitting element, and a third light emitting element, the first light emitting element is adjacent to the second light emitting element with a first interval and the second light emitting element is adjacent to the third light emitting element with a second interval which is larger than the first interval, and a second diffusing area formed corresponding to the second interval on the outer edge area, a dimension of the second diffusing area in a direction of arrangement of the light-emitting elements is smaller than the second interval, and no diffusing area is formed corresponding to the first interval on the outer edge area.