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首页> 外文会议>20th International Congress on Applications of Lasers amp; Electro-Optics Vol.90 Oct 15-18, 2001 Jacksonville, Florida USA >Laser Class Machining for Crack Initiation and Edge Seaming in Flat Panel Display Manufacturing
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Laser Class Machining for Crack Initiation and Edge Seaming in Flat Panel Display Manufacturing

机译：平板显示器制造中用于裂纹产生和边缘接缝的激光加工

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摘要

A laser-based edge seaming process to improve the edge quality of laser-cut glass panels for the display industry is introduced. Laser cutting of glass typically results in 90° corners at the edges. These sharp corners pose a major problem during assembly and shipment because (ⅰ) they can scratch or damage electrical leads in the frame, and (ⅱ) micro-cracks can grow due to vibrations during shipment. These micro-cracks can develop into small chips of glass which can also damage the electrical leads and the frame itself. A laser beam is focused on the edge of the glass panel and material is removed due to melting and ablation. Experimental results show that a rounded edge is produced with a radius of curvature in the order of 50 μm. An optical microscope is used to examine the processed edges. No molten material or bubble entrapment was found in the machined area.
机译：引入了一种基于激光的边缘接缝工艺，以改善用于显示行业的激光切割玻璃面板的边缘质量。玻璃的激光切割通常会在边缘产生90°角。这些尖角在组装和运输过程中构成了一个主要问题，因为（ⅰ）它们会刮擦或损坏机架中的电线，并且（ⅱ）微裂纹会由于运输过程中的振动而增大。这些微裂纹会发展成小的玻璃碎片，这也会损坏电线和框架本身。激光束聚焦在玻璃面板的边缘，并且由于熔化和烧蚀而去除了材料。实验结果表明，产生的圆边的曲率半径约为50μm。光学显微镜用于检查加工后的边缘。在加工区域未发现熔融材料或气泡夹带。

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