Keyboard backlight module, light guide film and processing method thereof

Abstract

The invention discloses a light guide film of a keyboard backlight module, the light guide film is also provided with a plurality of heat dissipation holes used for heat dissipation, and the hole walls of the heat dissipation holes are provided with shading layers used for preventing light from being emitted from the hole walls of the heat dissipation holes. The heat dissipation holes for heat dissipation are formed in the light guide film, and the hole walls of the heat dissipation holes are provided with the shading layers used for preventing light rays from being emitted out of the hole walls of the heat dissipation holes, so that the light rays can be prevented from being emitted out of the heat dissipation holes of the light guide film, the light leakage phenomenon is avoided, and meanwhile, the backlight module made of the light guide film can prevent light leakage and has the advantage of being good in heat dissipation performance. The invention further discloses a processing method of the light guide film of the keyboard backlight module. The method comprises the steps of selecting materials, manufacturing light guide net points, covering the protective film, punching the appearance and the heat dissipation holes, manufacturing the shading layer and removing the protective film, and has the advantages of few steps and simple process.

Description

【Technical field】 [0001] The invention relates to a keyboard backlight module, the invention relates to a light guide film of the keyboard backlight module, and the invention also relates to a processing method of the light guide film of the keyboard backlight module. 【Background technique】 [0002] The keyboard backlight module is an important part of the luminous keyboard. The backlight module of the notebook keyboard includes a light guide film, a light-shielding film laminated on the front of the light guide film, and a reflective film laminated on the back of the light guide film. There are light guide dots; the keycap is located on the upper side of the light-shielding film. When in use, the light emitted by the light source enters from the side of the light guide film, and then emits from the position of the light guide dots on the light guide film to illuminate the keys. cap. [0003] At present, notebook computers are becoming thinner and thinner, and the heat diss...

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