Light emitting module and light guide plate

Abstract

The invention relates to a light emitting module and a light guide plate. The light emitting module comprises a light guide plate, a rough surface structure and at least one light emitting assembly, wherein the light guide plate is provided with at least one light incidence side and at least one light emitting side; the at least one light incidence side and the at least one light emitting side are respectively located at two opposite sides of the light guide plate, and the at least one light emitting side is a paraboloid; the rough surface structure is formed on the at least one light emitting side; and the at least one light emitting assembly respectively emits light towards the at least one light incidence surface. The light emitting module and the light guide plate disclosed by the invention have the following beneficial effects that: as the light emitting side is roughened to form the rough surface structure, when the light of the light emitting assembly reaches the light emittingside from the light incidence side, the rough surface structure is dispersed by the light, and the frequency for reflecting the light onto the light emitting front surface is reduced, and irregular bright fringes generated on the light emitting front surface of the light guide plate can be further reduced, or even eliminated, thus, the light emitting brightness generated by the light emitting front surface and an arc side of the light guide plate can be uniformed.

Description

technical field [0001] The invention relates to a backlight module, in particular to the structure of a light emitting module and a light guide plate in the backlight module. Background technique [0002] A general backlight module includes a light guide plate and a light source. For electronic products that require a thin body, LEDs are usually used as light sources, and the light source is placed on the light incident surface on the side of the light guide plate. The light emitted by the light source is projected from the light incident surface into the light guide plate for transmission, and the light is sequentially emitted from the light exit surface. [0003] A light guide plate with a small area usually only forms a light incident surface on one side and installs a light source, so that the light source injects light into the light guide plate, so that the light output surface of the light guide plate presents a relatively uniform brightness. However, the more light ...

AI Technical Summary

Problems solved by technology

Since the curved side 12 of the light guide plate 10 has a curved shape and a mirror surface, the number of reflected light 21 to the light-emitting front 11 can be increased, so that the position of the light-emitting front 11 of the light guide 10 close to the curved side 12 produces irregular brightness. The pattern 30 causes uneven light output from the light-emitting front 11 of the light guide plate 10, and also leads to a difference in brightness between the light-emitting front 11 and the curved side 12 of the light guide plate 10.

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