Light guide plate production process and production device, and light guide plate produced thereby

Abstract

The invention discloses a light guide plate production process and production device, and a light guide plate produced thereby. The process comprises the following steps: preparing a point texture roller; enabling a light guide raw material to be heated and fused by use of a heating apparatus, performing extrusion formation on the fused light guide raw material through an extrusion apparatus, and obtaining a plasticity light guide plate after half cooling; performing hot pressing on the plasticity light guide plate to form astigmatism salient points by use of a hot pressing apparatus; and obtaining a needed light guide plate by cutting the light guide plate to needed dimensions by use of a cutting apparatus, wherein the density of the astigmatism salient points on the light guide plate in the middle portion of the light guide plate is the largest, and the density is gradually decreased from the middle portion to the two sides of the light guide plate. Through arrangement of the point texture roller and arrangement of the salient points whose density is gradually decreased from the middle to the two sides outside the point texture roller, the astigmatism salient points protruding outwards are pressed on the light guide plate by use of a hot pressing mode, the astigmatism salient points are integrally formed with the body of the light guide plate, deformation is not easily generated, the light guide effect is better, and the service life of the light guide plate is longer; and the process is simple and practical and is suitable for wide promotion and application.

Description

technical field [0001] The invention relates to the technical field of light guide plate production, in particular to a light guide plate production process, production equipment and the produced light guide plate. Background technique [0002] The light guide plate is made of optical-grade acrylic / PC plate, and then high-tech materials with high reflectivity and non-absorbing light are used to print astigmatism dots on the bottom surface of the optical-grade acrylic plate with UV screen printing technology. The optical-grade acrylic plate is used to absorb the light emitted from the lamp to stay on the surface of the optical-grade acrylic plate. When the light hits each astigmatism point, the reflected light will diffuse to various angles, and then destroy the reflection condition and emit from the front of the light guide plate. Through astigmatism points of various densities and sizes, the light guide plate can be made to emit light evenly. The purpose of the reflector i...

AI Technical Summary

Problems solved by technology

[0003] The astigmatism points on the existing light guide plate are mainly bumps printed with ink. The ink is not easy to decompose, and it is easy to cause pollution to the environment, and it is easy to deform or disappear with the increase of use time, resulting in a decrease in the light guide efficiency of the light guide plate. The service life of the light guide plate

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