Double glazing light guide plate backlight module

Abstract

The invention discloses a double glazing light guide plate backlight module comprising a support, a light source, a reflection paper, a double glazing light guide plate and a diffusion sheet; the support comprises a support short edge and a support long edge; the support short edge is vertically placed on the top of the left side of the support long edge; the light source is arranged on the left side of the support short edge; the reflection paper is arranged on the top surface of the support long edge; the double glazing light guide plate is arranged above the reflection paper; net dots are arranged on the bottom surface of the double glazing light guide plate; the diffusion sheet is arranged on the top surface of the double glazing light guide plate; the double glazing light guide platecomprises a glass layer, a net dot processing layer, and net dots; the net dot processing layer is arranged on one side of the glass layer; the net dots are arranged on the net dot processing layer. The double glazing light guide plate backlight module can improve the yield rate, is high in machining efficiency, uniform in light extraction, environmental protective, and reduced in backlight modulethickness.

Description

technical field [0001] The invention relates to a backlight module for a double-layer glass light guide plate, in particular to a backlight module for a double-layer glass light guide plate with improved yield, high processing efficiency, uniform light output, environmental protection, and reduced thickness of the backlight module. Background technique [0002] In recent years, in the display industry, backlight modules (BLU: Back Light Unit) are divided into direct type and side type. The proportion of side-type backlight modules is increasing. The appearance of side-entry products is more ultra-thin, and the proportion is also increasing. The lower surface of the side-entry light guide plate is usually provided with formed dots to realize the reflection of light, so that the light can be irradiated on the optical film more uniformly. [0003] The working principle of the light guide plate is to use the optical-grade acrylic sheet to absorb the light emitted from the LED ...

AI Technical Summary

Problems solved by technology

[0005] At present, there are two methods for making dots on glass light guide plates: one is the method of printing dots, which has the advantage that it can be mass-produced, but the disadvantages are: 1. Due to the difference in chemical properties between ink and glass light guide plate, it is easy to produce color difference; 2. Ink The adhesion on the glass light guide plate is poor, and it is easy to fall off or partially peel off; 3. When processing the light guide plate with ultra-fine dots, laser is used to process the dots below 0.1mm on the glass light guide plate. Fine cracks are formed around the dots, which cannot meet the mass production yield requirements of light guide plate dot processing

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