A high-uniformity laser light guide plate processing method and device

A processing method and laser processing technology, which are applied in metal processing, laser welding equipment, metal processing equipment, etc., can solve the problems of poor uniformity of luminous brightness and complicated process of light guide plates

Active Publication Date: 2018-02-27
江苏大学扬州(江都)新能源汽车产业研究所
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  • Abstract
  • Description
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Problems solved by technology

However, in the actual processing process, these different dot areas need to be processed in sections, the process is complicated, and finally it is detected that the uniformity of the light-emitting brightness of the light guide plate is not good.

Method used

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  • A high-uniformity laser light guide plate processing method and device
  • A high-uniformity laser light guide plate processing method and device
  • A high-uniformity laser light guide plate processing method and device

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Embodiment

[0081] according to figure 1 Shown processing step has following embodiment:

[0082] The laser for processing is λ=1064nm, the beam diameter Φ=50μm, and the pulse width is 10ns.

[0083] Polymethyl methacrylate PMMA was selected as the processing material of the laser light guide plate, and the PMMA was cut by mechanical cutting, and the surface and sides of the panel were flame-polished, and prepared into small panels to be processed before use.

[0084] Select micronanoparticles as SiO 2 , diameter d=2μm, sonicate the solution of micro-nanoparticles for 10min to obtain SiO 2 The micro-nanoparticle suspension is ready for use.

[0085] Place the small panel to be processed on the base 8 of the spin coating device of the present invention, drop SiO on the surface of the small panel to be processed 2 Suspension of micro-nano particles, start the device, set the speed N 1 =200r / min, duration T 1 =25s; after T 1 After that, set the speed N 2 =1000r / min, duration T 2 =35...

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Abstract

The invention belongs to the technical field of laser processing and provides a high-uniformity laser guide plate processing method and device. The method comprises the steps that a small panel to be processed is put under a laser device, and when a laser beam radiates the surface of the small panel to be processed, a local field enhancement effect is generated on the peripheries of micro / nano-particles to make nanopores generated in the contact parts of the micro / nano-particles and the small panel to be processed, wherein the surface of the small panel to be processed is coated with the single layer of micro / nano-particles; then, the surface of the small panel to be processed is cleaned and dried through a cleaning device and a drying device respectively; finally, a uniformly-distributed nanopore array can be formed on the surface of the small panel to be processed. The high-uniformity laser guide plate processing method and device have the advantages that a laser source is efficiently converted into the area beam, and a scattering beam is uniform and gentle. The processing device comprises a rotary coating device, the laser device, the cleaning device, the drying device and a laser guide plate processing platform; a micro / nano-particle suspension storage device, the laser device, the cleaning device and the drying device are arranged on the laser guide plate processing platform from right to left in sequence.

Description

technical field [0001] The invention belongs to the technical field of laser processing, and in particular relates to a high-uniformity laser light guide plate processing method and device. Background technique [0002] The processing methods of the light guide plate include traditional ink printing and laser processing. At present, the laser light guide plate processing method is the most commonly used. It uses a laser to make a hole-like structure with a specific arrangement on the surface of the light guide plate to achieve The surface that requires illumination has the advantages of concentrated processing energy and environmental protection. The radius of the final dots formed is generally on the order of millimeters, and the minimum is not less than 0.08mm, such as the embodiment data published in the invention patent CN104977649A. [0003] The improvement of the laser light guide plate processing method aims to optimize the design of the dot parameters in order to see...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/382B23K26/18B23K26/60B23K26/70B23K101/18
CPCB23K26/18B23K26/382B23K26/60B23K26/702B23K2101/18
Inventor 佟艳群黄建宇任旭东吴笑漪石琳金鑫卢铭
Owner 江苏大学扬州(江都)新能源汽车产业研究所
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