Manufacturing technology of high temperature resistance light guide plate favourable for even light distribution
A technology with uniform distribution and manufacturing process, applied in the direction of light guide, optics, optical components, etc., can solve the problems of affecting production efficiency, complex production process, high cost, etc., and achieve the effect of fast engraving speed, good visual effect and wide practicability
Inactive Publication Date: 2010-03-31
SHANGHAI EDGE LIGHT IND
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Problems solved by technology
But the light is uneven, the production process is complicated, and the cost is high
[0007] Now engraving machines mainly use laser engraving machines. The theoretical engraving width of laser engraving machines is 2m, which cannot meet the engraving work of large light guide plates; in addition, the engraving speed of laser engraving machines is slow, which affects production efficiency; the engraving effect of laser engraving machines is poor. The brightness of the engraved light guide plate is poor. In many cases, the thickness of the light guide plate must be increased to increase the brightness, so the cost is high; when the laser engraving machine is working, there are many working parameters that need to be set, which is not easy to operate
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[0030] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0031] Light guide plate manufacturing process that is conducive to uniform distribution of light and high temperature resistance, refer to figure 1 :
[0032] (1), select engraving equipment, described engraving equipment is the engraving equipment with diamond carving knife, refer to figure 2 , The longitudinal section of the cutter head 11 of the diamond carving knife 1 is "V" shaped.
[0033] (2) Select the material of the light guide plate. The material of the light guide plate can be polymethyl methacrylate (PMMA). This material has good heat resistance and is not easily deformed at a relatively high temperature.
[0034] (3), engraving light guide net, refer to image 3 and Figure 4 , using the engraving equipment described in (1) t...
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The invention discloses a manufacturing technology of a high temperature resistance light guide plate favourable for even light distribution, relating to a manufacturing technology of a light guide plate, in particular to a manufacturing technology of a high temperature resistance light guide plate more favourable for even light distribution. The manufacturing technology of the invention comprisesthe following steps: (1) selecting carving equipment, wherein the carving equipment is provided with a diamond graver, and the tool bit longitudinal section of the diamond graver is in V shape; (2) selecting light guide plate sheet material; (3) caving a light guide net, and using the carving equipment in (1) to cave a liner groove on the light guide plate sheet material, wherein the longitudinalsection of the groove is in V shape, and plural grooves are staggered to form the light guide net to generate the light guide plate; (4) cleaning light guide plate chips and checking products. The manufacturing technology has the characteristics of wide caving width, high caving speed, high carved light guide plate luminance, easy operation and the like.
Description
technical field [0001] The invention relates to a manufacturing process of a light guide plate, in particular to a manufacturing process of a light guide plate that is more conducive to uniform distribution of light and high temperature resistance. Background technique [0002] The light guide plate is based on acrylic (PMMA) and is widely used in the backlight module technology of LCD displays, notebook computers, and advertising light boxes. It is a high-tech product that transforms line light sources into surface light sources. At present, there are mainly four preparation techniques for light guide plates on the market: printing, chemical etching, direct injection molding and engraving. [0003] Among them, the printing type uses light-guiding ink with high reflection and high refraction to print regular light-guiding dots on the surface of high-transparency acrylic board according to the optical principle. After the shape of the acrylic plate is finished, the light gui...
Claims
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Login to View More IPC IPC(8): G02B6/00B29C59/00B29D11/00
Inventor 由磊
Owner SHANGHAI EDGE LIGHT IND