Light emitting device, flat light and flat panel display

摘要

A light emitting device comprising a first frame, a light bar and a light guide plate is provided. The first frame has a groove which has a bottom plane, two inner walls, and an opening. The light bar disposed in the groove comprises a substrate having a lower surface attached to the bottom plane and an upper surface having several light sources. The light guide plate has a light emitting surface and a light incident surface. The light incident surface perpendicular and adjoining to the light emitting surface has several abutting portions. The light guide plate is inserted to the groove via the opening. The emitting light of the light source entering the light guide plate is guided by the light guide plate to be emitted off the light emitting surface. The abutting portions abut to the upper surface, so that the light bar is fixed in the groove.

主权项

1. A light emitting device, comprising:
a first frame whose inner side has a groove, wherein the groove is strip and has a bottom plane, two inner walls perpendicular to two sides of the bottom plane, and an opening; a light bar disposed in the groove, wherein the light bar comprises a substrate having a lower surface and an upper surface opposite to the lower surface, the lower surface is attached to the bottom plane of the groove, and the upper surface has a plurality of light sources; and a light guide plate having a light emitting surface and a light incident surface, wherein the light incident surface is positioned on one side of the light guide plate and perpendicular and adjoining to the light emitting surface, and the light guide plate has several protruded abutting portions, the side of the light guide plate having the light incident surface is inserted to the groove via the opening, the emitting light of the light source entering the light guide plate via the light incident surface first is guided by the light guide plate to be emitted off the light emitting surface, and the abutting portions of the light guide plate abut to the upper surface of the substrate or the light sources, so that the light bar is fixed in the groove and does not slide; wherein the abutting portions and the light guide plate are integrally formed in one piece by different materials by way of double plastic injection.