Direct-light-type backlight module

Abstract

The invention discloses a direct-light-type backlight module, which comprises an optical component, a reflecting plate and a plurality of cold-cathode fluorescence lamps arranged in parallel between the optical component and the reflecting plate. The reflecting plate comprises a plate bottom with a plane structure and a plurality of reflecting surfaces forming different included angles with the plate bottom; and the plurality of reflecting surfaces are symmetrically arranged on the plate bottom by taking each cold-cathode fluorescence lamp as a center. In the direct-light-type backlight module, the reflecting surfaces with different reflecting angles are additionally arranged on the surface of the reflecting plate, so that light emitted from the cold-cathode fluorescence lamps is reflected to a LCD panel from different angles and the problem that bright lamp lines forms on the surface of the LCD panel in the prior art is solved; and in addition, the light is distributed uniformly, and the integral thickness of the backlight module is reduced simultaneously and greatly, so that the LCD panel fulfills the aim of thickness decreasing and meets market requirements.

Description

technical field [0001] The present invention relates to liquid crystal display technology, in particular to a direct type backlight source module. Background technique [0002] With the continuous development of technology, Liquid Crystal Display (hereinafter referred to as: LCD) has gradually replaced the cathode ray tube display (Cathode Ray Tube; become the mainstream display. Since the LCD panel itself does not emit light, a light source must be added to the LCD panel to enable the LCD to display images, so the backlight source is essential for the LCD. [0003] Generally speaking, according to the different distribution positions of the backlight sources, the backlight sources can be divided into edge type backlight sources and direct type backlight sources. The edge type backlight sources are placed on the side of the LCD display, while the direct type backlight sources are located on the LCD display. below the screen. At present, direct type backlights are mainly u...

AI Technical Summary

Problems solved by technology

[0006] A direct type backlight module provided by the present invention, by adding reflection surfaces with different reflection angles on the surface of the reflection plate, the light emitted by the cold cathode fluorescent tube is reflected from different angles to the LCD panel, which improves the LCD panel in the prior art. The problem of the bright line of the lamp tube appears on the surface, and it makes the light evenly distributed, and at the same time greatly reduces the overall thickness of the backlight module, so that the LCD panel can be thinned to meet the market demand

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