High-uniformity full-screen light guide plate and preparation method thereof

Abstract

The invention provides a high-uniformity full-screen light guide plate and a preparation method thereof. The preparation method comprises the following steps that S1, injection molding is carried outwith a light guide plate production mould to form a rectangular light guide plate body, the light guide plate body is provided with a lamp socket slot at one end and a cutting line at the other end, both ends of the cutting line are correspondingly connected with the edges of the light guide plate body, the cutting line is arc-shaped, and an area surrounded by the cutting line is the area to be cut; S2, the light guide plate body is suspended by using a clamps, a support plate is used for supporting the area to be cut, and the support plate is away from the cutting line; and S3, finally a cutting fixture is used for cutting along the cutting line, so that the area to be cut is separated from the light guide plate body to form a notch. According to the high-uniformity full-screen light guide plate and the preparation method thereof, the uniformity of injection molding materials in the notch of a light guide plate is good, no bright line or dark line defects are formed, and the full screen display effect is good.

Description

technical field [0001] The invention relates to the technical field of light guide plate production and processing, in particular to a high-uniform full-screen light guide plate and a preparation method thereof. Background technique [0002] In order to increase the proportion of the display screen in the existing full-screen mobile phones, one method is to move the front camera, earpiece hole and other components of the mobile phone from the body to the display screen. Therefore, in order to make the display screen accommodate the front camera , earpiece hole and other parts, it is necessary to set a gap at one end of the light guide plate. At present, one method of producing this kind of light guide plate is to change the structure of the mold so that the injection molded light guide plate has a gap, but because the gap has a corner, During injection molding, the corners will cause uneven force on the injection plastic, resulting in poor uniformity of light transmitted at ...

AI Technical Summary

Problems solved by technology

[0002] In order to increase the proportion of the display screen in the existing full-screen mobile phones, one method is to move the front camera, earpiece hole and other components of the mobile phone from the body to the display screen. Therefore, in order to make the display screen accommodate the front camera , earpiece hole and other parts, it is necessary to set a gap at one end of the light guide plate. At present, one method of producing this kind of light guide plate is to change the structure of the mold so that the injection molded light guide plate has a gap, but because the gap has a corner, During injection molding, the corners will cause uneven force on the injection plastic, resulting in poor uniformity of light transmitted at the gap after molding, forming defects such as bright lines or dark areas, and affecting the display effect of the full screen.

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