Light guide plate and backlight mould provided with same

Abstract

The invention provides a light guide plate and a backlight mould provided with the same. The light guide plate comprises a body and a metal layer arranged on the body, wherein the body comprises a bottom surface and a top surface corresponding to the bottom surface as well as a plurality of side faces positioned between the bottom surface and the top surface; and the metal layer is arranged on at least one side edge of the top surface, and the difference of the reflectivity of the metal layer on light with the wavelength of 380-780mm is less than 20%. In the light guide plate provided by the invention, the metal layer is arranged on the top surface, thus the light which is shined from the light-inlet surface of the light guide plate and spread to the top surface of the light guide plate is reflected back to the light guide plate, so that the light can spread in the light guide plate, the light leakage is prevented, and then the illumination intensity and uniformity of the light guide plate are guaranteed; and the manufacture is simple, and the cost is low.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a light guide plate with a metal layer and a backlight module with the light guide plate. Background technique [0002] A liquid crystal display (LCD, Liquid Crystal Display) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Most of the liquid crystal display devices currently on the market are backlight liquid crystal display devices, which include a liquid crystal panel and a backlight module. The working principle of the liquid crystal panel is to place liquid crystal molecules between two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates. The direction of the liquid crystal molecules is controlled by electrifying or not, and the light of the backlight module is refracted. Come out to generate the picture. Since the liquid crystal panel itself does not emit ligh...

AI Technical Summary

Problems solved by technology

However, since the interface between the side reflector 400 and the light guide plate 400 is not a smooth interface, the light will be diffusely reflected at this interface, resulting in light leakage.

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