Ultrathin direct type backlight module

Abstract

The invention discloses an ultrathin direct type backlight module. The backlight module comprises a backlight plate, wherein a light guide plate and a film material framework are arranged on the backlight plate, the light guide plate is located between the backlight plate and the film material framework, plastic parts are arranged on the two sides of the light guide plate and the film material framework, an LED light source is arranged between the light guide plate and the backlight plate, the light guide plate comprises a prism structure, a groove is formed below the light guide plate, and the face, provided with the groove, of the light guide plate is close to the backlight plate. According to the backlight module, the LED light source is installed on the backlight plate by rotating a rotating piece, and the installation and maintenance are convenient; the LED light source is positioned in the groove; the direction of the light source is effectively changed, light is refracted through the prism structure, the light source atomization effect is achieved, the uniform distribution of the light source is adjusted, a particle bright spot phenomenon is avoided, the height of a direct type backlight cavity is effectively reduced, the vertical distance between an original diffusion plate and the LED light source is replaced, the backlight source thickness is reduced, and the ultrathin effect is achieved.

Description

technical field [0001] The invention relates to a backlight module, in particular to an ultra-thin direct type backlight module. Background technique [0002] In the current direct-lit backlight design, the diffusion plate above the LED is used to uniformly atomize the LED light source to ensure the uniformity of brightness in each area of ​​the product. In order to avoid bright spots and halos on the screen caused by LED particles, in general direct-type backlight design, a certain distance must be kept between the diffuser plate and the LEDs to ensure that the light source is evenly dispersed. Therefore, the existence of the distance makes the direct-type backlight generally thicker, which cannot be achieved. Ultra-thin design of side-type backlight. Contents of the invention [0003] The purpose of the present invention is to provide an ultra-thin direct-lit backlight module. By rotating the rotating part, the LED light source is installed on the backlight board, which...

AI Technical Summary

Problems solved by technology

In order to avoid bright spots and halos on the screen caused by LED particles, in general direct-type backlight design, a certain distance must be kept between the diffuser plate and the LEDs to ensure that the light source is evenly dispersed. Therefore, the existence of the distance makes the direct-type backlight generally thicker, which cannot be achieved. Ultra-thin design of side-lit backlight

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