发明授权
- 专利标题: Laser marking method using laser heated liquid crystal mask
- 专利标题(中): 激光打标法采用激光加热液晶面罩
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申请号: US687472申请日: 1996-08-07
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公开(公告)号: US5734145A公开(公告)日: 1998-03-31
- 发明人: Masashi Ichihara , Akira Mori , Yukinori Matsumura , Yukihiro Tsuda
- 申请人: Masashi Ichihara , Akira Mori , Yukinori Matsumura , Yukihiro Tsuda
- 申请人地址: JPX Tokyo
- 专利权人: Komatsu Ltd.
- 当前专利权人: Komatsu Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX6-034229 19940208
- 主分类号: G02F1/13
- IPC分类号: G02F1/13 ; B23K26/00 ; B23K26/06 ; G06K1/12 ; G09G3/36
摘要:
A method of driving a liquid crystal mask marker increases a marking speed, by reducing the time required for producing an image, and maintains marking accuracy at a high level. For this purpose, a laser beam (L11) is irradiated onto a non-light-permeable portion, such as a non-light-permeable surface and/or a non-liquid-crystal surface, of a liquid crystal mask (8), for example, a liquid crystal electrode member (81), before the liquid crystal mask completes the production of an image when the image is produced on the liquid crystal mask (8).