Design method and device of elliptical dots of light guide plate and light guide plate

Abstract

The invention relates to the technical field of light guide plate design and discloses a light guide plate and an elliptical dot designing method and device of the laser-processing light guide plate. The elliptical dot designing method includes: building a two-dimension coordinate plane on the light guide plate; determining a light emitting area in the two-dimension coordinate plane; building a density distribution function of elliptical dots in the light emitting area; determining adjacent horizontal interval and adjacent vertical interval among the elliptical dots and short-long axial ratio of the elliptical dots; determining long axis of the elliptical dots according the the adjacent horizontal interval, the adjacent vertical interval, the short-long axial ratio and the density distribution function; converting the density distribution function and the long axis of the elliptical dots into a computer instruction to realize distribution of the elliptical dots. Length of the long axis of the elliptical dots acquired by calculation is closer to actual distribution of dots compared with conventional linear dots, so that light guide effect of the light guide plate is improved effectively.

Description

technical field [0001] The invention relates to the technical field of light guide plate design, in particular to a method and device for designing elliptical dots of a laser-processed light guide plate and the light guide plate. Background technique [0002] The light guide plate is an important component in the LED side-entry backlight module. Whether the dot distribution on the light guide plate is good or not has a great impact on the optical performance of the backlight module, and then directly affects the light guide effect. [0003] Laser processing of the light guide plate is to vaporize the surface of the light guide plate directly on the base material of the light guide plate through the high temperature of the laser to form concave points (that is, dots) one by one. The traditional laser processing outlets use GOOLS software to design linear outlets. However, due to the large difference between the linear outlets and the actual outlets, the optical data obtained ...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method and device for designing elliptical dots of a laser-processed light guide plate and a light guide plate, aiming to solve the problem of poor light guide effect of the light guide plate due to inaccurate and stable optical data

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