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Proceedings Paper

Laser-induced cleavage of LCD glass as full-body cutting
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Paper Abstract

The laser-induced cleavage of LCD glass is free from the generation of cullet and micro-crack, dispensing with the subsequent processes of grinding and cleansing. This paper deals with the theory and experiment of this technology which can improve the manufacturing of flat panel displays. Different from the preceding technology using CO2 laser irradiation which can realize surface absorption and scribing only, we have realized the surface/inward absorption of laser beam inside glass by matching the absorption characteristics of glass and the emission wavelengths of appropriate lasers and have succeeded in realizing the full-body cleavage of LCD glass. We have also succeeded to develop the technologies, which can eliminate the shortcomings so far considered to be inherent to this full-body cleavage, i.e. size effect. The completion of the full-body cleavage in this way can simplify the manufacturing process of LCD.

Paper Details

Date Published: 23 February 2008
PDF: 10 pages
Proc. SPIE 6880, Laser-based Micro- and Nanopackaging and Assembly II, 688007 (23 February 2008); doi: 10.1117/12.759025
Show Author Affiliations
Kojiro Karube, LEMI Co., Ltd. (Japan)
Norio Karube, LEMI Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 6880:
Laser-based Micro- and Nanopackaging and Assembly II
Wilhelm Pfleging; Yongfeng Lu; Kunihiko Washio; Willem Hoving; Jun Amako, Editor(s)

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