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1. 发明授权

US4153529A Means and method for inducing uniform parallel alignment of liquid crystal material in a liquid crystal cell 失效
标题翻译：用于在液晶单元中引起液晶材料的均匀平行排列的方法和方法
公开(公告)号：US4153529A
公开(公告)日：1979-05-08
申请号：US570303
申请日：1975-04-21
申请人： Michael J. Little , Hugh L. Garvin , Yat-Shir Lee
发明人： Michael J. Little , Hugh L. Garvin , Yat-Shir Lee
IPC分类号： G02F1/1337 , C23C15/00 , G02F1/13
CPC分类号： G02F1/13378 , G02F1/133734
摘要： Electrode surfaces are coated with a passivating material (silicon dioxide, aluminum oxide or titanium dioxide) or with a reflecting material (chromium or chromium and gold) or with a special alignment material (carbon) using standard vacuum sputtering, vacuum evaporation, electrodeposition, or chemical vapor deposition techniques. After sufficient thickness of material has been deposited, the substrate is exposed to a broad or narrow beam of neutralized argon ions of a few kilo-electron-volts energy. The beam of argon ions is incident at a grazing angle to the surface, typically 20.degree.. Exposure of the overcoating results in a microscopic condition believed to comprise a "corrugated" surface with "ridges" and "valleys" parallel to the direction of the incident beam. These microscopically fine grooves or streaks are (1) reproducibly effective in causing parallel alignment of the liquid crystal molecules, (2) are durable to repeated cleaning procedures and air-bake treatments, and (3) are amenable to production applications in conjunction with vacuum deposition equipment.
摘要翻译：电极表面用钝化材料（二氧化硅，氧化铝或二氧化钛）或反射材料（铬或铬和金）或特殊对准材料（碳）涂覆，使用标准真空溅射，真空蒸发，电沉积或化学气相沉积技术。在沉积足够厚度的材料之后，将衬底暴露于几千伏特电压能量的宽或窄的中和的氩离子束。氩离子束以表面的掠角入射，通常为20°。外涂曝光导致微观状态，认为包含“波纹”表面，其平行于入射光束的方向具有“脊”和“谷”。这些显微细微的凹槽或条纹是（1）可重复地有效地引起液晶分子的平行排列，（2）耐反复清洁程序和空气烘烤处理，以及（3）适合与真空结合的生产应用沉积设备。

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