High‐precision laser glass cutting for future display.
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| Title: | High‐precision laser glass cutting for future display. |
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| Authors: | Jung, Woohyun1 (AUTHOR), Kim, Hyungsik1 (AUTHOR) hsnix.kim@samsung.com, Voronov, Alexander1 (AUTHOR), Park, Sunggyu1 (AUTHOR), Ryu, Jekil1 (AUTHOR), Jeong, Seong Ho1 (AUTHOR), Roh, Cheol Lae1 (AUTHOR) |
| Source: | Journal of the Society for Information Display. May2022, Vol. 30 Issue 5, p462-470. 9p. |
| Subjects: | Laser beam cutting, Nonlinear optics, Manufacturing processes, Amorphous substances, Optics |
| Abstract: | As one of the various attempts to reduce the size of display bezel, high‐precision glass cutting process is required to be developed for future displays. In this study, the Bessel‐beam Laser Cutting (BLC) process has been studied, which is capable of minimizing the thermal deformation of the black matrix (BM) material on glass. In an experimental setup composed of IR ps laser with bessel‐beam optics, the smallest thermal degradation of BM and the highest cutting precision are achieved as 40 and 10 μm, respectively. When reducing thermal effects caused by high‐order beams without sacrificing glass breaking strength, effective heat affected zone (HAZ) could be reduced nearby 30 μm width from the cutting line. This high‐precision cutting technology will contribute to realize extremely narrow bezel display near future. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of the Society for Information Display is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Abstract: | As one of the various attempts to reduce the size of display bezel, high‐precision glass cutting process is required to be developed for future displays. In this study, the Bessel‐beam Laser Cutting (BLC) process has been studied, which is capable of minimizing the thermal deformation of the black matrix (BM) material on glass. In an experimental setup composed of IR ps laser with bessel‐beam optics, the smallest thermal degradation of BM and the highest cutting precision are achieved as 40 and 10 μm, respectively. When reducing thermal effects caused by high‐order beams without sacrificing glass breaking strength, effective heat affected zone (HAZ) could be reduced nearby 30 μm width from the cutting line. This high‐precision cutting technology will contribute to realize extremely narrow bezel display near future. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 10710922 |
| DOI: | 10.1002/jsid.1130 |
