Light guiding plate structure and manufacturing method thereof

Abstract

The invention discloses a light guiding plate structure and a manufacturing method thereof. The light guiding plate structure comprises a transparent light guiding plate and a reflecting film adhered onto the light guiding plate, wherein semi-transmission and semi-reflection lattice points are distributed in matrix mode and arranged between the light guiding plate and the reflecting film, and the lattice points distributed in matrix mode are directly printed on one surface of the reflecting film and are made of adhesive sticker in printing mode. The lattice points are directly printed on the reflecting film through the adhesive sticker, the reflecting film can be printed in continuous integral rolling mode, and production efficiency is greatly improved. The light guiding plate requires no pre-printing technology so that the problem that the light guiding plate can be scraped easily and materials are wasted is solved, and production cost is reduced. Further, the light guiding plate is well adhered to the reflecting film through the lattice points made of adhesive sticker with no gap, so that product performance is improved. The adhesive sticker is non-toxic and non-irritant and accords with the requirements for environment protection. Further, by means of the manufacturing method, the printing lattice points are printed firstly, and then the light guiding plate is cut, so that a panel can be ensured to be even in lighting without accurate aligning.

Description

technical field [0001] The invention relates to the field of a backlight source, in particular to a structure of a light guide plate and a manufacturing method thereof. Background technique [0002] The light guide plate is a key component in the background light source of a color liquid crystal display or an LED panel light. Its main function is to convert a point light source or a line light source into a surface light source. The quality of the light guide plate directly affects the picture quality or luminous effect. In order to increase the light extraction efficiency and improve the uniformity of light diffusion, the existing light guide plate is usually screen-printed on the reflective surface to form a dot matrix or a grid. [0003] like figure 1 As shown, it is a traditional light guide plate structure, which includes a transparent light guide plate 1' and a reflective film 2'. When making it, first cut the light guide plate 1' into the required size, and then fix ...

AI Technical Summary

Problems solved by technology

[0005] 1. In the process of operation, the light guide plate not only needs silk screen printing, but also needs to be baked in an oven, so the light guide plate is easy to scratch, resulting in a decrease in the yield of the finished product and a waste of materials;

[0006] 2. The light guide plate and the reflective film must pass through the double-sided adhesive at the edge to fit together, but the place where there is no double-sided adhesive in the middle cannot fit together well;

[0007] 3. The ink of dot printing is irritating and not environmentally friendly;

[0008] 4. Since the light guide plate is cut first and then the dots are printed, the screen must be well aligned with the light guide plate, otherwise there will be no dots on the offset position of the light guide plate, which will cause the panel to emit uneven light

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