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.
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