Ultrathin light-guiding film and light-guiding structure thereof

Abstract

The invention discloses an ultrathin light-guiding film and a light-guiding structure thereof. The light-guiding structure of the ultrathin light-guiding film comprises a light-guiding film and top LED (Light-Emitting Diode) light sources, wherein the light-emitting surfaces of the top LED light sources are arranged in parallel below the light-guiding film which is provided with a first characteristic surface and a second characteristic surface, light-guiding mesh points are uniformly distributed on the first characteristic surface and the second characteristic surface, the light-guiding mesh points of the first characteristic surface are distributed right above the top LED light sources, and the light-guiding mesh points of the second characteristic surface are distributed in a target light-emitting area; a reflecting layer is arranged below the top LED light sources to increase the utilization rate of backlight energy, and the light-guiding structure of the ultrathin light-guiding film realizes the high brightness and the even backlight indication of the target area through a small amount of top LED light sources matched with the light-guiding film and realizes the ultrathin product with low energy consumption.

Description

technical field [0001] The invention relates to the lighting field, in particular to an ultra-thin light-guiding film and a light-guiding structure thereof. Background technique [0002] Currently, handheld electronic products, such as mobile phones, are very popular. In order to realize accurate input on electronic products in a dark environment, it is necessary to illuminate the keyboard. The usual method is to set up a lighting system at the bottom of the keyboard, and the usual way is to directly illuminate the LED light or conduct it through the light guide plate. [0003] However, with the development of portable products such as mobile phones towards thinness, energy saving, and low cost, the key backlight of the products has also become the object of attention. Apparently, the direct irradiation of LED lights or the light guide plate in the past cannot meet the development trend of light and thin, energy-saving and low-cost portable electronic products. Optical fi...

AI Technical Summary

Problems solved by technology

Apparently, the direct irradiation of LED lights or the light guide plate in the past cannot meet the development trend of light and thin, energy-saving and low-cost portable electronic products. Optical film products need to be equipped with two side-emitting LEDs. By diffusing the light emitted by the LEDs, the keys of the mobile phone can be illuminated. At present, the price of side-emitting LEDs is still higher than that of top-emitting LEDs, making "2 side-emitting LEDs + 1 guide The use cost of "light film" is still higher than 4-6 top-emitting LEDs, resulting in a higher production cost of the product itself

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