Light guide plate for automobile display screen

Abstract

The invention discloses a light guide plate for an automobile display screen, and relates to the technical field of light guide plates. The light guide plate comprises a main body, a plurality of light concentrating columns and a point reflecting group are fixedly connected to a surface of the main body; a reflective housing is fixedly connected to an end surface of the main body; the reflective housing includes a heat dissipation plate; an end surface of the heat dissipation plate is fixedly connected with a heat dissipation layer; one end, positioned far away from the heat dissipation plate,of the heat dissipation layer is fixedly connected with three heat dissipation fins; one end, positioned far away from the heat dissipation layer, of the heat dissipation plate is fixedly connected with four lamp caps; the point reflecting group includes a plurality of reflecting lenses; each reflecting lens is a convex circular lens; the reflecting lenses are distributed in a sparse to dense manner on the surface of the main body in a direction away from a light source. The light guide plate disclosed in the invention can help solve a problem that a conventional light guide plate light source is gradually attenuated due to influence of distance during light scattering processes and therefore light guided out via the light guide plate is low in light evenness and non-uniform in brightnessvia design of unequal distance among the light concentrating columns, a micro concave-convex curved surface structure design and sparse-dense design of the point reflecting group.

Description

technical field [0001] The invention belongs to the technical field of light guide plates, in particular to a light guide plate for automobile display screens. Background technique [0002] In recent years, with the development of various information, communication, and consumer liquid crystal display products, especially the development of various color liquid crystal display products, the requirements for the luminance, light uniformity, and light output efficiency of the light source system are increasing day by day. [0003] The existing light guide plate generally has two working modes, the first one is to provide light from the light source, enter the light guide plate from the light incident surface of the light guide plate, and then emit from the light exit surface of the light guide plate; the other is to have two On the opposite light-emitting surface, the light provided by the light source is emitted from the two light-emitting surfaces after entering the light gu...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a light guide plate for automobile display screens. Through the unequal distance of the light-condensing cylinders and the design of the micro-concave-convex arc surface structure, it solves the problem of the existing light guide plate light source in the divergence process due to the influence of distance. The transmitted light is gradually reduced, which makes the light finally exported by the light guide plate different. Due to the sharp corners of the microstructure of the light guide plate, the microstructure is scratched and knocked off due to friction during transportation, which eventually affects the function of the light guide plate; through the unequal design of the point reflection group, the existing light guide plate is solved. The scattered light cannot be refracted multiple times, resulting in the inability of all the light to be effectively refracted, resulting in waste of light and affecting the final light projection effect; at the same time, it also solves the problem that the existing light guide plate light source cannot effectively pass through the increase after attenuation due to distance Reflect the density of objects, so as to achieve the purpose of offsetting attenuation and uniform light projection; through the design of the reflective shell, the problem of scattered light source emission in the existing light guide plate is solved; Solved the problem of low heat dissipation efficiency of the existing light guide plate

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