Light-conducting panel and production thereof

Abstract

A light guide plate consists of a base plate with a surface set with multiple ripple lattice point for raising optical effect and light evenness of light guide plate. Its preparing method includes shining a laser on different position of base plate to form a ripple lattice point at each position for preparing a model and utilizing said model to form a light guide plate.

Description

[technical field] [0001] The invention relates to a backlight module, in particular to a light guide plate applied to the backlight module and a manufacturing method thereof. [Background technique] [0002] The light guide plate is one of the key components of the backlight module. However, with the market demand for high brightness, high output and low cost, in order to maintain the market competitiveness of the light guide plate, the manufacturing method of the light guide plate needs to be researched and developed by the relevant industry. . [0003] see figure 1 As shown, the conventional light guide plate 10 uses the principle of total reflection to transmit the light provided by the light source to the far end of the light guide plate 10, and then uses the dots 13 on the bottom surface 11 of the light guide plate to destroy the total reflection, so as to guide the light to the front of the light guide plate 12. The traditional manufacturing method of the light guide ...

AI Technical Summary

Problems solved by technology

[0003] see figure 1 As shown, the conventional light guide plate 10 uses the principle of total reflection to transmit the light provided by the light source to the far end of the light guide plate 10, and then uses the dots 13 on the bottom surface 11 of the light guide plate to destroy the total reflection, so as to guide the light to the front of the light guide plate 12. The traditional manufacturing method of the light guide plate is to print the designed pattern directly on the light guide plate to form dots. Because the printing dot particles are not fine enough and the viscosity of the ink is not easy to control, the light uniformity and quality uniformity will be poor. It is not easy to control, and it is not a one-time molding, so the processing is time-consuming, and it does not meet the needs of high-volume production; another manufacturing method is disclosed in Taiwan, China Patent No. 514766, which first coats a photoresist on a flat substrate After exposing and developing the photoresist, a copper seed layer is planted, and then a nickel mold core is formed on the surface of the copper seed crystal by electroforming, and then the mold core is separated from the flat substrate, and then The copper seed crystal is etched away to form a nickel core, and finally the light guide plate of a backlight module is formed by injection molding of the core. However, many manufacturing processes (such as coating, exposure, etc.) , electroforming, etc.), and the modification of the mold core is not easy; therefore, the above-mentioned methods cannot achieve high-volume production, simplify the manufacturing process, and produce light guide plates with better optical effects.

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