Light guide plate and manufacturing method thereof

Abstract

The invention relates to a light guide plate and a manufacturing method thereof. The light guide plate comprises a plate body and at least one positioning part, wherein the plate body is provided with a light emergent surface, a reflective surface opposite to the light emergent surface and at least one light incident surface which is contacted with the light emergent surface and the reflective surface; and the positioning part is connected to at least one side of the plate body. The method for manufacturing the light guide plate is realized through the following steps: providing at least one light guide plate which comprises a plate body and at least one positioning plate connected to the plate body, wherein the plate body is provided with the light emergent surface, the reflective surface opposite to the light emergent surface and at least one light incident surface contacted with the light emergent surface and the reflective surface; providing a positioning tool which is coupled to the positioning part to fix the plate body; and providing at least one cut tool which treats the light incident surface of the plate body and forms an optical element array on the light incident side. The invention has the beneficial effects that: light can enter into the light incident surface uniformly to provide a uniform area light source.

Description

technical field [0001] The invention relates to a light guide plate, in particular to the structure of the light guide plate and its manufacturing method. Background technique [0002] Thin liquid crystal display devices generally use a backlight module composed of light emitting diodes and light guide plates to generate surface light sources to illuminate the liquid crystal display panel. Generally speaking, light emitting diodes as point light sources are disposed on the side (light incident surface) of the light guide plate to provide light incident into the light guide plate. However, in order to smoothly enter the light from the side of the light guide plate into the light guide plate, the light emitting diodes must be arranged within a specific angle range relative to the side of the light guide plate, which makes assembly difficult. In addition, as the thickness of the light guide plate becomes thinner, the area of ​​the side of the light guide plate becomes smaller,...

AI Technical Summary

Problems solved by technology

However, the punching process is prone to offset, which will reduce the optical precision of the formed optical element array, and it is impossible to obtain an optical element array that can well scatter light

Images