Light guide plate for mobile phone and manufacturing method thereof

Abstract

The invention discloses a light guide plate for a mobile phone. The light guide plate comprises a light guide plate body, the light guide plate body includes an upper diffusion film, a brightness enhancement film, a lower diffusion film, a light guide plate main body and a reflective film. The upper diffusion film, the brightness enhancement film, the lower diffusion film, the light guide plate main body and the reflective film are sequentially bonded from top to bottom, and the two sides of the light guide plate body are provided with semi-arc-shaped clamping grooves, and the light inlet endof the light guide plate body is provided with isosceles trapezoids which are sequentially adjacent. The light guide plate is of an isosceles trapezoid sawtooth structure, incident light of the lightguide plate body can be emitted more favorably, and thus the light emitting evenness is improved. The light guide plate is scientific and simple in structure design, the ultra-thin structure design and the arrangement of the upper diffusion film, the brightness enhancement film, the lower diffusion film, the light guide plate body and the reflective film make the light guide plate body have good light conductivity and reduce light loss; and the arrangement of first light-shielding paper, second light-shielding paper and third light-shielding paper reduces interference of light on the side of the light guide plate body.

Description

technical field [0001] The invention belongs to the technical field of light guide plates, and in particular relates to a mobile phone light guide plate, and also relates to a manufacturing method of the mobile phone light guide plate. Background technique [0002] The light guide plate is made of optical-grade acrylic / PC sheet, and then high-tech materials with high reflectivity and non-absorbing light are used to engrave the bottom surface of the optical-grade acrylic sheet with laser, V-shaped cross grid engraving, UV screen printing technology prints light guide points. 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 light guide point, the reflected light will spread to all angles, and then destroy the reflection condition and be emitted from the front of the light guide plate. Through light guide points of various densities and sizes, the light guide pl...

AI Technical Summary

Problems solved by technology

[0003] With the development of the mobile phone industry, the life cycle of mobile phones has been shortened sharply, and the market demand and types of mobile phone products are increasing day by day. The light guide plate is a necessary accessory in the manufacture of mobile phone products. Its lighting structure is a very precise part. Now Some light guide plates use multiple lights in their lighting structure, the structure is unreasonable, the loss of light in the transmission process is serious, the light conductivity is not good, and the installation and positioning of the light guide plate is difficult , is not conducive to assembly

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