Integrated printing and etching machine for producing light guide plate for backlight source

Abstract

The invention discloses an integrated printing and etching machine for producing a light guide plate for a backlight source. The machine comprises a bottom plate, a printing plate and an etching head.The printed plate compresses a light guide plate on the bottom plate and is fixed with the bottom plate by a fastener. A plurality of through holes are formed in the printing plate. The etching headis arranged above the printing plate and is driven to move on a guide rail by linear driving; and the bottom of the etching head is in contact with the upper surface of the printing plate. The etchinghead includes a conduit that is led to an etching machine externally into the etching head. The printing plate includes a first plate surface, a second plate surface, springs, and a film tube; the second plate surface is embedded into the bending side of the first plate surface to form a sandwich structure; the springs are arranged in the sandwich structure; the first plate surface and the secondplate surface are locked by an adjusting bolt; the film tube is arranged at the sandwich structure of the first plate surface and the second plate surface; and the two ends of the film tube are connected with the through holes respectively.

Description

technical field [0001] The invention relates to the field of light guide plate processing, in particular to an integrated printing and etching machine for backlight light guide plate production. Background technique [0002] The display panel generally needs to use a backlight, and the light guide plate in the backlight is a component that converts several point light sources and linear light sources into surface light sources. Among them, there is a type of light guide plate that is provided with pits arranged in a dot matrix on its surface. After the point light source on the side of the light guide plate injects light into the light guide plate, it scatters continuously in the light guide plate layer, and finally uniformly emits light from the end surface of the light guide plate. The upward emission forms a surface light source. [0003] In the prior art, the pits on the surface of the light guide plate are generally obtained by chemical etching, which needs to be print...

AI Technical Summary

Problems solved by technology

This method is more difficult to ensure the uniformity of the etchant application. On the same light guide plate, one-time application and etching may also process pits of different depths, which will affect the use of the light guide plate, and the processing efficiency is low; Under the conditions of use, the light guide plate is processed with pits of different sizes and depths, while the traditional printing and etching methods cannot be adjusted quickly and accurately

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