Processing technology of light guide plate

Abstract

The invention discloses a processing technology of a light guide plate. The processing technology comprises the following steps: (1) designing of a pattern; (2) processing of a compression mould; (3) measuring of dot sizes; (4) installing of the compression mould; and (5) processing of the light guide plate. According to the invention, hot-press processing is performed on the light guide plate, so as to reduce production costs and enlarge the processing range of the light guide plate.

Description

technical field [0001] The invention relates to a processing technology of an optical plate, in particular to a processing technology of a light guide plate. Background technique [0002] The light guide plate is usually an optical plate installed on the advertising light box or display screen. The optical grade plate is selected, and multiple light guide points are arrayed on the plate. When in use, the light extends from the edge of the light guide plate along the surface of the light guide plate. Direction incident, after the reflection and refraction of multiple light guide points on the light guide plate, the reflected and refracted light diffuses through various angles, and then the light is emitted from the front of the light guide plate. When viewed from the front of the light guide plate, the entire light guide plate is Transparent. [0003] The production of light guide plates is divided into printing and non-printing methods. The traditional way of making light g...

AI Technical Summary

Problems solved by technology

[0004] 1. The traditional printed light guide plate needs to use ink to scatter the light emitted by the LED, so as to turn the line light source into a surface light source and provide light source for the display. Due to the limitation of the manufacturing process, the dot design of the light guide plate cannot be too small, which is more common in the industry. The problem of hot fireflies and the visibility of dots are difficult to overcome and improve; at the same time, in the traditional process, the ink is a mixed solvent, which is baked in an infrared oven, and the ink is cured on the surface of the light guide plate, but because it is a mixed solvent, with the As the time becomes longer, the ink will slowly volatilize, resulting in unstable dot shape, and the product will fluctuate when it is heated during use in the later stage, which will affect the optics;

[0005] 2. The injection molding process of the light guide plate has high mold cost and long development cycle, and due to the limitation of injection molding pressure, the size that can be produced is small, which cannot meet the market demand;

[0006] 3. Laser technology of light guide plate, because the laser uses laser to form concave points on the surface of the light guide plate, which will make the light guide plate bend to the side where the concave points are formed. When producing light guide plates below 2mm, it is easy to bend, so only 2 mm or more can be produced. The size of the light guide plate has strong limitations. At the same time, because the laser technology cannot work with more lenses at the same time due to the number of laser heads, the production efficiency and production capacity are low, and the laser has radiation, which is easy to cause bodily harm to the operator.

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