Lighting device

Abstract

The invention provides a lighting device. The lighting device comprises light sources, a light guide plate, a light reflect plate and an outer frame and is characterized in that a UV (Ultra Violet) ink-jet printer jets UV ink drops onto a transparent baseplate and the ink drops are solidified by an UV lamp to obtain the diffusion network points on the light guide plate. The manufacturing method of the light guide plate comprises the following steps: providing the transparent baseplate; generating a unicolor gradient image through a gradient tool; printing the unicolor gradient image onto the transparent baseplate; solidifying the printed image onto the transparent baseplate through the UV lamp. The lighting device provided by the invention comprises a plurality of LED light sources, the light guide plate and the outer frame at the periphery and has the advantages of energy conservation, high uniformity of luminance and long service life; one damaged LED lamp does not affect the use of the whole lighting device; besides, the diffusion network points on the light guide plate of the lighting device provided by the invention are formed once by ink-jet printing; the ink-jet printing has the advantages that the printing speed is high; the forming is simple; the cost is low; the ink-jet printing can be applicable to the printing of the light guide plates of various lighting devices of different shapes and sizes.

Description

technical field [0001] The invention relates to an illuminating device, in particular to an illuminating device containing an ink-jet light guide plate. Background technique [0002] At present, lighting devices using LED lamps as light sources have been widely used. Due to the direct use of LED point light sources as direct light sources, there are disadvantages such as uneven luminosity, easy to generate glare, and single lamp failure has a great impact on the overall lighting effect. In the prior art, LED lights are used as light sources to make LED panel lights. The light emitted from the LED lights is emitted through the light guide plate to make the light more uniform, and the damage of a single LED light basically does not affect the overall luminous effect. [0003] The production methods of the light guide plate mainly include non-printing type, screen printing type and inkjet type. The non-printing type uses molds to directly form or press to form light guide line...

AI Technical Summary

Problems solved by technology

As the size of the light guide plate increases, the amount of printed image data also increases. Therefore, when using this method to make a large-sized light guide plate, the performance requirements of the image processor of the printer are very high. The printing speed of ordinary printers is very high. Slow, even crashes at larger sizes

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