High light-efficiency end-face light guide plate for backlight module and preparation process thereof

Abstract

The invention discloses a high-efficiency end face light guide plate for a backlight module and a preparation process thereof. The high-efficiency end face light guide plate for the backlight module includes a light incident face, a light guide end face disposed opposite to the light incident face, a light exit face connecting the light incident face and the light guide end face, and a light guideface connecting the light incident face and the light guide end face; the light exit face is horizontal, the light guide end face is vertical, and the light guide face is inclined; the light incidentface includes an upper surface, a lower surface, and a light incident end face; one end of the light incident end face is connected to the upper surface, and the other end is connected to the lower surface; the other end of the upper surface is connected to the light exit face, and the other end of the lower surface is connected to the light guide face; and the upper surface includes a horizontalsection adjacent to the light incident end face and an inclined section away from the light incident end face. The light guide plate is prepared by a mold injection molding method. The light guide plate disclosed by the invention increases the diffusion angle and the diffusion range of the light, increases the scattering and light mixing effect, and has uniform light output and good effect; and the preparation process is non-toxic and high-efficiency, which is suitable for industrial production.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a high light efficiency end face light guide plate for a backlight module and a preparation process thereof. Background technique [0002] With the continuous development and maturity of liquid crystal display technology, liquid crystal display gradually occupies a dominant position in the flat panel display market. The backlight module is a backlight component in liquid crystal display products, and generally consists of a backlight source, a multi-layer backlight material and a supporting frame. The quality of the backlight determines important parameters such as the brightness of the LCD screen, the uniformity of the emitted light, and the color scale. The light guide plate is an important structure in the backlight module. It is used to convert the line light source of the backlight into a surface light source with uniform brightness, which improves the uniformity of light ...

AI Technical Summary

Problems solved by technology

[0004] After a comprehensive study of the existing light guide plates for backlight modules and their preparation techniques, there are still the following problems to be solved: 1. The dots on the light guide plate are not properly set up, including their density and size, which cannot make the light guide plate play a good role. Light effect; 2. The ink required for printing contains a large amount of volatile solvents, which has certain toxicity, is not environmentally friendly, and will cause harm to the human body during production and use; 3. When etching dot slots, the etching The liquid is chloroform, first of all, chloroform is highly toxic, and secondly, if there is any residue in production, it will gradually oxidize under light to form highly toxic phosgene, which brings serious safety problems

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