Display device and backlight module

Abstract

The invention discloses a display device and a backlight module. The display device comprises a light bar; a light-emitting assembly on the light bar comprises an annular curved light reflecting cover, a light-emitting diode and a lens, wherein the light-emitting diode and the lens are arranged in the light reflecting cover; light emitted by the light-emitting diode passes through the lens, emergent light at the center of the light is deflected towards a large-angle direction, so that the emergent light at each angle is relatively uniform; small-angle light passing through the lens can directly enter a light outgoing side through the opening of the light reflecting cover; and large-angle light passing through the lens can enter the light reflecting cover, and the light is reflected to theopening through the light reflecting cover so as to be emitted to the light outgoing side. Therefore, through the cooperation of the lens and the light reflecting cover, the emergent light of the light-emitting diode can be fully utilized, the light is collected to the greatest extent, and the energy utilization rate of the light is improved; the curvature of the lens and the light reflecting cover can be adjusted, so that the emergent angle of the light can be adjusted; and thus, the energy of an irradiation light spot on the surface of the light outgoing side is relatively uniform, and the light outgoing uniformity of the backlight module is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display device and a backlight module. Background technique [0002] As the current mainstream display screen, liquid crystal display has the advantages of low power consumption, small size, and low radiation. The liquid crystal display panel is a non-self-illuminating panel and needs to be used in conjunction with a backlight module. [0003] Backlight modules are divided into side-type backlight modules and direct-type backlight modules. Although side-type backlight modules have advantages in thickness, as large-size display screens are more and more widely used in the field of televisions, side-type backlight modules The energy of the embedded backlight module is weak at the far end of the light guide plate, and even if the scattering microstructure is encrypted, it is still difficult to change its optical energy distribution. When faced with a larger-sized panel display,...

AI Technical Summary

Problems solved by technology

[0004] However, the light output efficiency of the current direct-lit backlight module is low, the output light of the light source cannot be fully utilized, and the uniformity of the light output needs to be improved.

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