Light guide board, backlight module and method for transmitting light

Abstract

The invention relates to a light guide board, a backlight module and a method for transmitting light. The light guide board comprises a bottom surface, a light emergent surface opposite to the bottom and a light incident surface connected with the bottom surface and the light emergent surface, and light enters the light incident surface and is transmitted in the light guide board. The light guide board also comprises a light transmission substrate and a first groove, wherein the light transmission substrate is provided with at least one through hole, the first groove is arranged on the light transmission substrate and on the periphery of the through holes. The invention can solve the problem of dark zone behind the through hole and can improve the utilization efficiency of the light.

Description

technical field [0001] The invention relates to a backlight module, in particular to a light guide plate in the backlight module. Background technique [0002] Light guide plates are used in backlight modules such as side-illuminated liquid crystal displays and lighting equipment. In recent years, light guide plates have been used in various electronic devices to introduce design elements such as color and light into the appearance of the electronic devices. [0003] figure 1 It is a three-dimensional schematic diagram of a light guide plate in the prior art. exist figure 1 The first direction D1 and the second direction D2 are marked in , wherein the first direction D1 can be understood as the rear (lower side) of the light guide plate 100 , and the second direction D2 can be understood as the front (upper side) of the light guide plate 100 . A through hole 110 is usually provided at a position of the light guide plate 100 corresponding to a component (not shown) of the...

AI Technical Summary

Problems solved by technology

However, the light guide plate 100a still has the following problem, that is, the light L will exit from the through hole 122 to the outside of the light guide plate 100a, and the light L will still be lost.

Images