Light guide plate, illuminating device and manufacturing method of light guide plate

Abstract

The invention relates to a light guide plate, an illuminating device and a manufacturing method of the light guide plate. The light guide plate provided by the invention comprises a plate body, an optical element array and a plurality of optical strip structures, wherein the plate body is provided with a light incident surface, and the light incident surface is provided with an optical difussion region and a fringe region which is adjacent to the optical diffusion region; the optical element array is arranged in the optical diffusion region; and the plurality of optical strip structures are arranged in the fringe region, and are connected to the optical element array and extend in a plurality of directions. The light guide plate, the illuminating device and the manufacturing method of the light guide plate have the beneficial effects that the range of the light emergent angle of a light source can be increased, and the bright speck phenomena can be decreased; the uniform area light source can be provided by the illuminating device provided with the light guide plate; and in addition, according to the manufacturing method of the light guide plate, a cutting tool is adopted for cutting the plate body, and the manufacturing method of the light guide plate has the characteristic of simple manufacturing procedure, and is easy for manufacturing.

Description

technical field [0001] The invention relates to a lighting device, in particular to a light guide plate in the lighting device and a manufacturing method thereof. Background technique [0002] Backlight modules using light emitting diodes (Light Emitting Diodes, LEDs) in conjunction with light guide plates for illumination have gradually become popular. Generally speaking, a plurality of light emitting diodes are arranged on the light incident surface of the light guide plate and arranged in a straight line along the light incident surface of the light guide plate. Moreover, the plurality of light emitting diodes will maintain a fixed distance from each other. [0003] figure 1 It is a three-dimensional schematic diagram of a backlight module in the prior art. Please refer to figure 1 , the backlight module 100 has: a light guide plate 110 and a plurality of light emitting diodes 120 . The light guide plate 110 has a light incident surface 110a, a light reflection surfa...

AI Technical Summary

Problems solved by technology

However, as the number of light emitting diodes 120 decreases, the distance between two adjacent light emitting diodes 120 will increase, which will cause the area of ​​the dark area to become larger, that is, the phenomenon of bright spots will be more serious, and the surface light source will be more uneven.

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