标题: 利用奈米粒子提升Pi-Cells转态速度之研究
Nanostructure Effect on Transition in Pi-cells
作者: 李佳恬
Chia-Tien Lee
陈皇铭
Huang-Ming Philip Chen
显示科技研究所
关键字: 奈米结构;光学补偿弯曲型液晶显示器;成核现象;转变时间;pi-cell;nanostructure;optically compensated bend mode liquid crystal display;OCB Mode LCD;nucleation;transition time
公开日期: 2006
摘要: 近年來,平面显示器产业技术(LCD、OLED、PDP、FED等)已趋成熟,在市场蓬勃发展的带动之下,很多公司及研究单位纷纷投入下一世代显示器的开发。然而在大尺寸应用上,动态表现因受限于扭转型液晶较慢的反应速度,无法提升影像品质。因此具有快速应答速度的光学补偿弯曲型液晶模式显示器则备受瞩目。
然而,光学补偿弯曲型液晶显示器受限于其在操作前需要一段较长时间的热机时间使得液晶分子能由斜展态转换到真正进行操作的弯曲态。针对这项缺点,目前已有许多研究探讨过这个问题,但目前的改善方式依然会牺牲掉光学特性。因此,本篇论文使用奈米结构来形成转态核心,进而可以加快转态速度。而因为尺寸为奈米等级,也不会造成光学特性的损失。
The pi-cells are nematic liquid crystal devices in which the molecular director bends symmetrically by 180° through the cell. It has attracted much interest due to their fast response time and wide-viewing-angle characteristics. It is well known that the operating state (bend state) of a pi-cell must be nucleated then uniformly spread the bend orientation in splay state before operation. In this study, the random distribution of silicon oxide nano-particles was investigated for decreasing the time of splay-to-bend transition in pi-cells. Under the optimum conditions, the 50% reduction of splay-to-bend transition time was found in nanostructure structure treated surfaces.
URI: http://140.113.39.130/cdrfb3/record/nctu/#GT009415530
http://hdl.handle.net/11536/81056
显示于类别:Thesis


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