Light guide plate forming mold and manufacturing method

Abstract

The invention relates to the field of display technology, in particular to a light guide plate, a molding die, a manufacturing method, a backlight module, and a display device. The light guide plate includes a transparent substrate and a light-shielding member, the transparent substrate includes a light-emitting surface, a bottom surface opposite to the light-emitting surface, a light-incident side and a non-light-incident side, and the light-shielding member is integrally connected to the non-incidence side of the transparent substrate. Light side: the light at the edge of the light guide plate is blocked by a non-transparent light-shielding member, thereby effectively preventing the reflection between the light and the plastic frame, and avoiding the problems of light leakage and bright lines at the edge of the light guide plate; the light guide plate is different from the existing Compared with the method of printing black borders on the diffusion sheet, it has a better effect in shading. It can block all the light on the edge without being exposed, and the shading effect is optimal; moreover, because the shading parts of the light guide plate can be made of white opaque materials made, the light at the edge can be reflected and reused, and returned to the transparent substrate, thereby improving the utilization efficiency of light.

Description

Technical field [0001] The invention relates to the field of display technology, in particular to a light guide plate forming mold and a manufacturing method. Background technique [0002] With the development of science and technology, LCD technology has become more and more mature, and TVs have also changed from using traditional picture tubes to current LCD screens. The LCD is a passively illuminated display, which does not emit light by itself, so the LCD needs a backlight module to provide the light source. The backlight module has good color reproducibility and is easy to perform zone control, and has become the mainstream backlight source of LCD displays. The backlight module can be divided into side backlight module and direct backlight module according to the position of the LCD screen. The side backlight module can be ultra-thin because of its use of light guide plate. Today, it has become the mainstream of the market, so the side backlight module of the LCD screen ha...

AI Technical Summary

Problems solved by technology

However, since there is a gap between the diffuser and the plastic frame, it is impossible to achieve the effect of no light leakage, and the light at the edge will still be reflected in the gap, causing light leakage, the shading effect is not obvious, and the manufacturing cost will be increased.

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