Macroenergy laser for liquid crystal repair

By using beam shaping and energy enhancement technology in the laser for liquid crystal repair, the laser energy distribution is adjusted to the flat top distribution, and the wavelength ratio is adjusted through multi-frequency light output elements, the optical component damage caused by laser energy concentration is solved, achieving a longer service life and lower maintenance costs.

CN119726351AActive Publication Date: 2025-03-28GRACE LASER TECH CO LTD
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Patent Information

Application Number
CN202510229400.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-03-28
Estimated Expiration
2045-02-28

AI Technical Summary

Technical Problem

When the existing LCD repair lasers are output in large energy, the laser energy distribution is too concentrated, resulting in damage to optical components, reducing the laser life, and high maintenance costs.

Method used

The laser structure including semiconductor lasers, beam shaping elements, laser energy enhancement elements and multi-frequency light output elements is adopted. The laser energy distribution is adjusted to the flat top distribution through the beam shaping elements to reduce energy concentration, and the proportion of light of multiple wavelengths is adjusted through the multi-frequency light output elements.

Benefits of technology

The uniformity of laser energy distribution is achieved, damage to optical components is reduced, the service life of the laser is extended, the maintenance frequency and cost are reduced, and the scope of application of the laser is improved.

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Abstract

The invention relates to a large-energy laser for liquid crystal repair. The large-energy laser comprises a semiconductor laser, a beam shaping element, a laser energy enhancing element and a multi-frequency light output element which are sequentially arranged in the light propagation direction. The semiconductor laser is used for emitting semiconductor laser; the beam shaping element is used for adjusting beam energy distribution of the semiconductor laser into flat top distribution; the laser energy enhancement element is used for performing energy enhancement on the semiconductor laser and outputting fundamental frequency light; the multi-frequency light output element is used for performing frequency conversion on the fundamental frequency light so as to output mixed light containing multiple wavelengths and adjust the proportion of the light of each wavelength. According to the invention, the concentration of large-energy laser energy distribution can be reduced, so that the damage to the optical element is reduced, the service life of the optical element is prolonged, the maintenance frequency is reduced, and the cost is reduced; and moreover, mixed light with various wavelengths can be output, and the light ratio of each wavelength can be adjusted to adapt to different energy ratio requirements, so that the application range is widened.
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