Solar backlight source and light-emitting banner

Abstract

A solar backlight source and a light-emitting banner comprise a solar cell, a plurality of light-emitting diode (LED) light sources and light guide plates, wherein the plurality of the LED light sources are respectively connected with a voltage output end of the solar cell in parallel, and the plurality of the LED light sources are arranged on the side surface of the light guide plates. Each light guide plate is provided with two surfaces, wherein at least one surface is provided with a plurality of concave points, the concave points are identical in sizes and in hemispherical shapes or rectangular shapes, and the surface of each concave point is rough. The solar backlight source and the light-emitting banner have the advantages of being little in using point light source, simpler in line, lower in cost, smaller in energy consumption of a light source, and uniform in light distribution. Moreover, the luminous effect can not be influenced after a local point light source is damaged, and marketing is benefited.

Description

technical field [0001] The invention relates to the field of lighting, in particular to a solar backlight source and a luminous flag. Background technique [0002] With the development of lighting technology, backlight sources are used more and more widely. For example, backlights used in national flags, billboards, billboards, etc. A traditional backlight usually arranges a plurality of point light sources evenly on the surface of the flat panel, and uses more point light sources, more complicated connection lines, higher cost, higher power consumption, and the brightness of the backlight near the point light sources is higher. Well, the brightness far away from the point light source is darker, and the light distribution is uneven. Moreover, after the local point light source is damaged, the backlight source is partially dimmed, and a good lighting effect cannot be achieved. Another type of backlight is to arrange multiple point light sources evenly on the side of the li...

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to use more point light sources for traditional backlight sources, more complex circuits, higher cost input, higher power consumption, and uneven light distribution. To solve the problem of achieving a better lighting effect, it provides a method that uses less point light sources, has simpler circuits, lower cost, less power consumption, more uniform light distribution, and does not affect the lighting effect after local point light sources are damaged. Solar Backlight

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