Light guide plate, light guide plate manufacturing method, backlight module and display device

Abstract

The present invention relates to the light guide plate manufacturing technology field, and provides a light guide plate, a light guide plate manufacturing method, a backlight module and a display device. The light guide plate comprises a transparent substrate and a light diffusion layer, the transparent substrate has an in-light surface, out-light surface and a scattering surface opposite to the out-light surface, the light diffusion layer coats and is attached to the scattering surface of the transparent substrate, and the light diffusion layer includes ink and diffusion particles configured to correct the light diffusion angle and increase the light intensity. Compared to the prior art, the light diffusion layer controls the out-light angle to increase the light intensity per unit area while increasing the light radiation area. Compared to the prior art, the backlight module can greatly reduce the thickness of the backlight module. The display device provided by the invention can save the materials and reduce the assembling process. The light guide plate manufacturing method can allow the prepared light guide plate to have the prism effect and integrate the light guiding and the light increasing.

Description

technical field [0001] The invention relates to the technical field of light guide plate manufacturing, in particular to a light guide plate, a method for making the light guide plate, a backlight module, and a display device. Background technique [0002] With the rapid development of science and technology, the market's pursuit of perfect appearance is also intensifying in addition to performance requirements for TVs and display products. Among them, due to the slow development of ultra-thin display screens in the market, the thinning of the machine has brought a different style to the entire industry. [0003] Currently, the conventional liquid crystal display 200, see Figure 4 , mainly including a liquid crystal display panel 201, a light source 202, a light guide plate 203, a diffusion plate 204 and an optical film 205, the light guide plate 203 is made of plexiglass material, and the thickness of the light guide plate 203 is approximately 1.5-3.0mm, optical The thick...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a light guide plate, a manufacturing method of the light guide plate, a backlight module, and a display device, aiming to solve the defects of the light radiation area of ​​the light guide plate and the low light intensity per unit area in the prior art

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