Method for optimizing microsphere structure of sidelight type polygonal light guide plate
An optimization method and technology for light guide plates, which are applied in the directions of light guides, optics, optical components, etc., can solve the problems of unsatisfactory illuminance distribution at the angle position, difficulty in dimming, and low utilization rate of polygonal light guide plates, etc., to shorten the optimization process. time, the effect of reducing the amount of calculation
Active Publication Date: 2020-01-17
TWL OPTRONICS SUZHOU
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Problems solved by technology
Due to problems such as uneven illumination of polygonal backlight modules, the development of wearable devices with irregular shapes is slow
The edge-lit polygonal backlight module has a large number of sides, and the illuminance distribution at the angle position is not particularly ideal. Compared with the conventional rectangular backlight module, the design is more difficult
Due to the uneven distribution of illuminance at the edge of the light-emitting surface of the polygonal backlight module and the difficulty in realizing regional dimming of the side-type backlight module, the utilization rate of the polygonal light guide plate is not high.
The current design of the light guide plate is mainly based on the personal work experience of the engineer. The engineer designs the light guide plate. The randomness of the microstructure distribution is not strong. There are too many optimization and adjustment steps in the later stage, which leads to high time cost and serious waste of human resources. The design of the light guide plate has higher requirements on the randomness of the microstructure distribution, and it takes more time to obtain a more uniform illuminance distribution
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[0023] The present invention will be further described below in conjunction with embodiment, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art can modify various equivalent forms of the present invention All fall within the scope defined by the appended claims of this application.
[0024] A method for optimizing the microsphere structure of a side-lit polygonal light guide plate, comprising the steps of:
[0025] S1. Use Lighttools software to establish a light guide plate model and establish a surface light source to illuminate the light guide plate on one side of the light guide plate. A number of spherical raised microstructures arranged in a matrix are arranged on the light-emitting surface of the light guide plate model;
[0026] S2. The structural parameters of the spherical convex microstructure ...
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The invention discloses a method for optimizing a microsphere structure of a sidelight type polygonal light guide plate. The method comprises the steps of performing modeling, grouping structural parameters, selecting the structural parameters of a parameter group to take discrete values, randomly selecting a single value from the remaining parameter groups, obtaining an optimized value range of the structural parameters of the selected parameter group according to light emission uniformity, selecting another parameter group, taking the discrete values of the structural parameters, randomly selecting a single value from the remaining parameter groups, taking a single value within the range for the parameter group with the optimized value range, and repeating the iteration to obtain the optimized value ranges of various structural parameters. The method disclosed by the invention is small in calculation amount and high in optimization speed.
Description
technical field [0001] The invention relates to a method for optimizing the structure of a light guide plate, in particular to a method for optimizing the microsphere structure of a side-light polygonal light guide plate. Background technique [0002] The development of liquid crystal display technology is becoming more and more mature, and liquid crystal display technology is very common in daily life. Wearable devices, which have become popular in recent years, have a single shape and look not much different from regular watches. Due to problems such as uneven illumination of polygonal backlight modules, the development of wearable devices with irregular shapes is slow. The edge-lit polygonal backlight module has a large number of sides, and the illuminance distribution at the angle position is not particularly ideal. Compared with the conventional rectangular backlight module, the design is more difficult. Due to the uneven distribution of illuminance at the edge of the...
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Login to View More IPC IPC(8): G02B27/00G02B6/00G02F1/13357
CPCG02B6/0033G02B6/0036G02B27/0012G02F1/133606
Inventor 杨希峰王水银梅坦
Owner TWL OPTRONICS SUZHOU