Backlight Module

Abstract

The invention provides a backlight module, which includes a backplane, a light source, a light guide column and an optical film. The backplane forms an accommodating cavity; The LED light bar includes a first LED light located in the splicing area; the optical film includes a diffuser, which is located in the accommodating cavity and arranged in the light-emitting direction of the light source; the light guide column is arranged in the splicing area, and Located in the light emitting direction of the light source, the light emitting surface of the light guide column corresponds to the light incident surface of the diffuser, the light guide column is a hollow structure, and the inner wall is provided with a reflective film. By arranging a light guide column on the first LED lamp in the splicing area, the light emitted by the first LED lamp enters the light guide column, is reflected by the reflective film, and is transmitted to the diffuser in the optical film, and the light is transmitted horizontally in the diffuser. Mixing light, thus ensuring the uniformity of brightness at the splicing place, and improving the phenomenon of splicing dark lines at the splicing place.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module. Background technique [0002] Mini LED (Mini LED) is regarded as a new generation due to its advantages of self-illumination, small size, light weight, high brightness, longer life, lower power consumption, faster response time, and stronger controllability. display technology. [0003] The size of the Mini LED light board is usually small, and the Mini LED backlight module in the medium-sized display device is mostly made by splicing multiple Mini LED light boards. However, the splicing of adjacent Mini LED light panels tends to produce obvious splicing gaps, and there will be splicing dark lines during display, which are not easy to eliminate, affecting the display quality. [0004] Therefore, the existing Mini LED backlight module has the technical problem of splicing dark lines at the splicing of light panels, which needs to be improved. Contents of t...

AI Technical Summary

Problems solved by technology

However, adjacent Mini LED light panels tend to produce obvious splicing gaps at the splicing places, and there will be splicing dark lines in the display, which are not easy to eliminate, affecting the display quality

[0004] Therefore, the existing Mini LED backlight module has the technical problem of splicing dark lines at the splicing of light panels, which needs to be improved.

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