Backlight module and obtained liquid crystal display television

Abstract

The invention belongs to the technical field of display devices and particularly discloses a backlight module and an obtained liquid crystal display television. The backlight module comprises at least one PCB lamp panel, a backlight source, at least one wide-angle lens, a piece of reflection paper, a diffusion panel and at least one optical membrane, wherein the backlight source is a monochromatic light source. The backlight module has the advantages of being high in brightness and wide in color gamut, the liquid crystal display television obtained through the backlight module has the advantages of being high in brightness and light energy utilization rate, in addition, the design difficulty of the obtained liquid crystal display television is lowered, the production requirement is lowered, and cost is reduced.

Description

Technical field [0001] The invention relates to a display device assembly, and more specifically, the invention relates to a backlight assembly and a liquid crystal television. Background technique [0002] With the rapid development of science and technology, LCD technology has become more and more mature, and TV sets have also developed from CRT TVs to today's LCD TVs. To put it simply, LCD TVs consist of two modules: a backlight module and an LCD panel. The backlight module includes two types: direct type and edge type. Its function is to provide high-quality backlight for the LCD panel, because the LCD panel itself is not luminescent. A high degree of matching must be maintained between these two modules to enable the entire TV to achieve higher performance, lower power consumption and cost. As far as the current LED LCD TV is concerned, there are still many shortcomings that we need to improve. For example, after the light emitted from the LED backlight module enters the ...

AI Technical Summary

Problems solved by technology

For example, after the light emitted from the LED backlight module enters the LCD panel, only about 6% of the light energy is transmitted, which means that 94% of the energy is wasted in the LCD panel, or more than 90% of the electric energy is wasted. This is in conflict with the energy saving and emission reduction advocated by the state and society, so it is extremely necessary to improve this defect

In addition, the inconsistency between color gamut and energy efficiency also needs to be resolved urgently. RGB-LED has the widest color gamut (about 110%), but the corresponding energy efficiency of its backlight module is also the lowest (80lm / w); The color gamut of phosphor powder is about 75%, but its energy efficiency can reach nearly 140lm / W; the current market adopts a compromise approach, using blue light chips plus red and green powders to make backlights, and its color gamut is only At about 90%, the energy efficiency is about 100lm / W. However, this indicator is still not enough to meet the growing needs of people, and its solutions still need to be improved.

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