Backlight module and obtained liquid crystal display television

A technology of backlight assembly and liquid crystal, applied in the field of display device assembly, can solve the problems of inconsistent color gamut and energy efficiency, low energy efficiency of backlight module, waste of electric energy and the like

Inactive Publication Date: 2015-03-25
TCL VERY LIGHTING TECH HUIZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Backlight module and obtained liquid crystal display television
  • Backlight module and obtained liquid crystal display television

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0014] Implementation mode one: as attached figure 1 As shown, the direct-lit LCD TV includes a TV cabinet 1, a high-reflectivity and high-diffusion reflective film 2, a PCB circuit board (located between the TV cabinet and the reflective film, the figure is only a schematic diagram), a monochromatic LED light source 3, a large Angle LED backlight lens 4, ordinary diffuser 5, brightness enhancement film 6, diffuser 7, lower polarizer 8, TFT thin film transistor layer 9, LC liquid crystal layer 10, color phosphor film 11 containing RGB three-color phosphors, and upper polarizer Piece 12. Among them, the monochromatic LED light source 3 can be ultraviolet light, blue-violet light, red light, and many other types. The color phosphor 11 and the traditional color filter CF are basically the same in structure, except that the R, The G and B small filters are replaced with phosphors of R, G, and B colors respectively.

[0015] In this embodiment, there are several monochromatic LED lig...

Example Embodiment

[0017] Embodiment 2: On the basis of Embodiment 1, the LED backlight assembly is different according to the position of the incident light source. This embodiment is an LED edge-lit LCD TV, that is, the first embodiment selects the direct type, and this embodiment selects the edge-lit backlight The components and other technologies are the same as in the first embodiment. The expected technical effect is the same as the first embodiment.

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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 ...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V13/04G02F1/13357F21Y101/02
CPCF21S8/00F21V13/04F21Y2101/00G02F1/133603
Inventor 张宇飞
Owner TCL VERY LIGHTING TECH HUIZHOU CO LTD
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