Design of net dots in laser direct writing light guide plate based on image processing technique

ZHANG Xi; LIU Xiaodong

doi:10.7510/jgjs.issn.1001-3806.2015.06.004

LASER TECHNOLOGY > 2015 > 39(6): 751-755. > DOI: 10.7510/jgjs.issn.1001-3806.2015.06.004

ZHANG Xi, LIU Xiaodong. Design of net dots in laser direct writing light guide plate based on image processing technique[J]. LASER TECHNOLOGY, 2015, 39(6): 751-755. DOI: 10.7510/jgjs.issn.1001-3806.2015.06.004

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Design of net dots in laser direct writing light guide plate based on image processing technique

ZHANG Xi,
LIU Xiaodong^,

Department of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China

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Received Date: September 11, 2014
Revised Date: November 02, 2014
Published Date: November 24, 2015

Graphical Abstract

Abstract

Abstract

In order to obtain light guide plate(LGP) with uniform surface illumination efficiently, using the design method based on gray image processing technique and using TracePro software, the model with two unilateral incident light-emitting diodes was analyzed theoretically and verified by simulation. Simulation data of output surface illumination was obtained. The results show that LGP designed by the method presented in this paper can reach 86.7% of illumination uniformity, conforming to the standard of Commission Internationale de I'Eclairage. The illumination uniformity can improved to 91.9% after modifying the gray image locally. This study is helpful for the design of LGP with high illumination uniformity more effectively.
- laser technique,
- light guide plate,
- image processing technology,
- scattering netted dots

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References

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