A light guide structure, side-entry backlight module and display device

Abstract

The invention relates to the technical field of display equipment, and specifically discloses a light guide structure, a side-entry backlight module and a display equipment. The light guide structure includes a light guide layer and a reflective layer bonded together, the light emitting surface of the light guide layer is provided with a light concentrating structure for converging the outgoing light, the reflective layer is arranged on the back of the light guide layer, and the reflective surface of the reflective layer Scattering particles are provided to scatter light incident on the reflective surface, and both the light guide layer and the reflective layer are made of PET. The light guide structure can effectively reduce the loss of light energy and improve the utilization rate of light energy; it also realizes the integrated design of reflection, light guide and brightness enhancement, and can replace the reflective sheet, light guide plate, and prism sheet in the traditional side-entry backlight module and diffuser, which simplifies the vertical structure of the backlight module, reduces the cost of the photoelectric module of the module, and improves the utilization rate and reliability of light energy. Both the light guide layer and the reflective layer are made of PET, which is cheaper than the traditional light guide plate, and is a flexible material, which improves the structural compatibility and is conducive to project development.

Description

technical field [0001] The invention relates to the technical field of display devices, in particular to a light guide structure, a side-entry backlight module and a display device. Background technique [0002] A display device is a device that can output images or sensory information, including televisions, monitors, and advertising machines. A display device generally includes a backlight module and a liquid crystal glass. The backlight module can be divided into a side-type backlight module and a direct-type backlight module according to the setting position of the light incident surface. The structure of the commonly used side-type backlight module is as follows: figure 1 As shown, it includes a backplane 1' and a light guide plate 4' installed on the backplane 1', a reflective sheet 3' is set between the light guide plate 4' and the backplane 1', and an optical film is set on the light guide plate 4' 5', the middle frame 8' frames the above-mentioned back plate 1', r...

AI Technical Summary

Problems solved by technology

It mainly has the following problems: the cost of the light guide plate 4' is high, accounting for about 30% of the cost of the side-entry module; 2' The light energy emitted cannot be incident, causing problems such as light leakage, bright edges, and poor reliability

In addition, the dot design and verification period of the light guide plate 4' is long, the production process is complicated, and the yield rate is low; the dots printed on the light guide plate 4' are fragile and easily scratched and damaged during transportation, resulting in poor subjective visual effects

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