Light guide plate, planar light emitting device, liquid crystal display device, liquid crystal display terminal equipment and manufacturing method of light guide plate

Abstract

The invention discloses an efficient energy-saving microstructural light guide plate, a planar light emitting device provided with the light guide plate, a liquid crystal display device, liquid crystal display terminal equipment and a manufacturing method of the light guide plate. A scattering pattern structure on the bottom plane of the light guide plate is formed by providing a colorless and transparent adhesive glue pattern layer on the bottom plane of the substrate, a stereoscopic microstructural scattering pattern layer is obtained by planting and sticking a plurality of mini scattering particles on the adhesive glue pattern layer, all or part of the planted and stuck mini scattering particles is bared and protrudes at the surface of the adhesive glue pattern layer, a part of the mini scattering particles, which is bared and protrudes at the surface of the adhesive glue pattern layer, is embedded into the colorless and transparent adhesive glue pattern layer, and is firmly bonded by the adhesive glue, and the other part of the mini scattering particles is bared and protrudes outside the colorless and transparent adhesive glue pattern layer. After adopting the light guide plate, a brightness increase rate of the planar light emitting device is more than 20%. According to the light guide plate prepared by the invention, the light guide plates in small, middle and big sizes can be manufactured at high quality, and the brightness increase rate of the light guide plate is fully realized.

Description

technical field [0001] The invention relates to a light guide plate, a plane light emitting device, a liquid crystal display device, and a liquid crystal display terminal device, and also relates to a manufacturing method of the light guide plate. Background technique [0002] In general, a liquid crystal display device includes a liquid crystal display panel that displays images and a planar light emitting device that supplies light to the liquid crystal display panel. A liquid crystal display panel includes two transparent substrates and a liquid crystal layer disposed between the two substrates to display images in response to changes in alignment of liquid crystal molecules of the liquid crystal layer caused by electrical signals. [0003] The planar light emitting device is divided into a direct type planar light emitting device and a side light type planar light emitting device according to the installation position of the light source. [0004] A direct type planar l...

AI Technical Summary

Problems solved by technology

There is also the patent announcement of patent No. 02152108.5, which is to add 10 um-50 um organic filler spheres into the adhesive and evenly coat the light-emitting plane of the light guide plate. The water agent used here is generally similar to chloroform. Acrylic adhesive instead of paste adhesive, and the entire surface is coated instead of patterned, which destroys the principle of total reflection of the light guide plate, so that the light cannot be transmitted to the central area, and their The purpose of the invention is to replace the role of the diffusion film to save the cost of the backlight module

The screen printing light guide plate of the prior art not only loses a lot of light energy in the process of light transmission and conversion, but also releases toxic gas during the production process to damage the health of production employees, so it has long been eliminated in the field of small size, but production The small-sized injection molding production process cannot be realized on the large-sized light guide plate

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