Luminous device, backlight module and a display device

Abstract

The invention provides a luminous device which comprises a luminous chip and a bracket, wherein the top of the bracket has a groove; the luminous chip is arranged in the groove; the bracket is made of a transparent light guide material; the luminous device also comprises a light guide lattice point which is arranged at the bottom of the bracket; and the light guide lattice point is used for scattering partial light rays emitting from the side face and bottom surface of the luminous chip to the periphery. Correspondingly, the invention provides a backlight module comprising the luminous device and a display device comprising the backlight module. According to the luminous device, the Hotspot phenomenon can be eliminated, and the light energy utilization rate can be improved.

Description

technical field [0001] The invention relates to the technical field of display manufacturing, in particular to a light emitting device, a backlight module including the light emitting device, and a display device including the backlight module. Background technique [0002] Liquid crystal displays have occupied a dominant position in the current flat panel display market due to their small size, low power consumption, and low radiation. In the liquid crystal display, since the liquid crystal itself does not emit light, it only regulates the light. In order to display images on the screen of the liquid crystal display, it is necessary to configure a backlight module (BLU, Back Light Unit) for the display panel (Panel). [0003] Generally speaking, the backlight module can be divided into side-type backlight module and direct-type backlight module according to the position of the light source in the backlight module, wherein the light source in the side-type backlight module i...

AI Technical Summary

Problems solved by technology

The light emitted by the light-emitting chip 3 radiates spherically in the space, that is, the upper surface, the side surface and the bottom surface of the light-emitting chip can emit light. about 20%), and because the bracket 4 is generally made of white opaque material (such as PLCC), its shape and material limit the light-emitting angle of the LED (such as figure 1 , 2 As shown, it is generally 120°), and the light emitted by the bottom and side of the light-emitting chip is lost due to the occlusion of the bracket 4, that is, the light output of the light-emitting chip is lost, thus reducing the light energy utilization of the LED; at the same time , if the light-emitting angle of the LED is 120°, the light emitted by two adjacent LEDs will produce a Hotspot phenomenon (that is, uneven brightness and darkness) on the light guide plate and form a dark area (such as figure 1 In order to reduce or even eliminate the Hotspot phenomenon, we can only increase the distance between the LED and the light guide plate, but this will further reduce the light energy utilization rate of the LED

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