LED (Light-Emitting Diode) backlight module based on liquid crystal display television

Abstract

The invention discloses an LED (Light-Emitting Diode) backlight module based on a liquid crystal display television. The LED backlight module comprises an LED light source, an outer frame, a reflector plate, a light guide plate, a light condenser plate and a diffusion plate. Uniformly-spaced circular-arc and triangular saw teeth which are alternatively arranged are formed at positions, close to the LED, of an incident surface; screen dots which are used for diffusing light are formed on a reflector surface; raised stripes which are vertical to the emergent direction of the light are formed on a light emergent surface; and the raised stripes are alternatively arranged circular-arc stripes and triangular stripes, and the widths of the stripes are increased with the increase of the spacing of the stripes and the incident surface. The LED backlight module disclosed by the invention solves the technical fields of insufficient luminous flux, poor LED heat dissipation capability, a complex structure, a single function of a light guide plate, and a low using efficiency of the materials in the existing LED backlight module. The module provided by the invention not only can reduce the using quantity of the light condenser plates, but also reduce the cost and thickness of the backlight module.

Description

technical field [0001] The invention belongs to the field of LED applications, and in particular relates to an LED backlight module based on a liquid crystal television, which can be widely used in various liquid crystal displays. Background technique [0002] The backlight module is an important part of the liquid crystal display device. The liquid crystal display uses the physical characteristics of the liquid crystal to work. When the power is turned on, the liquid crystals are arranged in an orderly manner, and the light is easy to pass through; when the power is not turned on, the arrangement becomes chaotic and the light is not easy to pass through. . But the liquid crystal itself will not emit light, it needs an additional backlight lighting device---backlight module, its function is to provide high brightness, high uniformity surface light source for the liquid crystal display. The development of the liquid crystal display industry has driven the market demand for b...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of the existing LED backlight module due to insufficient luminous flux, poor LED heat dissipation capability, complex structure, single function of the light guide plate, and low material use efficiency, the present invention provides an LED backlight module based on LCD TV

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