A kind of control method of backlight module, display device and backlight module

Abstract

The present invention provides a backlight module, a display device, and a control method for the backlight module. The backlight module includes: a light guide plate; and a light source component arranged on the light incident side of the light guide plate; the light source component It includes: a lamp board, the lamp board includes an installation surface facing the light incident side of the light guide plate; a plurality of LED lamps arranged on the installation surface, the light-emitting surface of each LED lamp faces the light guide plate The light-incident side of the light board is set, and each LED lamp can perform turning movement on the light board, wherein the steering angle of the LED lamp changes, and the distance between the light-emitting surface and the light-incident side of the light guide plate is and, a control structure for controlling the LED lamp to perform a steering movement. The backlight module of the present invention can expand the luminous angle of the point light source, make the light provided by the backlight module more uniform, and reduce the height of mixed light, which is more conducive to thinner products or narrower frame design.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module, a display device and a control method for the backlight module. Background technique [0002] In the liquid crystal display module, the backlight module is a key component related to the display effect. Among them, backlight modules mainly include side-type backlight modules and direct-type backlight modules. In the prior art, LED lights are usually used as the light source in the backlight module, and the LED lights are point light sources, which are limited by the light emitting angle of the LED lights. If you want to achieve a highly uniform image quality, you need to increase the light mixing height of the LED lights , so, for the side-type backlight, it is necessary to sacrifice the frame width of the display module, which is not conducive to the narrow frame design of the product; and for the direct-type backlight, the thickness of the display module w...

AI Technical Summary

Problems solved by technology

In the prior art, LED lights are usually used as the light source in the backlight module, and the LED lights are point light sources, which are limited by the light emitting angle of the LED lights. If you want to achieve a highly uniform image quality, you need to increase the light mixing height of the LED lights , so, for the side-type backlight, it is necessary to sacrifice the frame width of the display module, which is not conducive to the narrow frame design of the product; and for the direct-type backlight, the thickness of the display module will be increased, thus As a result, the visual effect of the whole machine is relatively bulky, which is not conducive to the thin design of the product

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