New Alignment Method of Liquid-Crystal Moleculas Based on the Geometrical Surface Structure of the Rubbed Substrate.

基于摩擦基底几何表面结构的液晶分子排列新方法。

基本信息

批准号：
05452199
负责人：
SEKI Hidehiro
金额：
$ 2.5万
依托单位：
Hachinohe Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1994
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05452199/
关键词：
Liquid Crystal Electronic Display Device Control of Molecular Alignment Continuum Theory Rubbing Tilt Angle Electrically Controlled Birefringence Effect Guest-Host Interactions 垂直配向連続体ダイレクタ

项目摘要

A new alignment technique of small tilted homeotropic alignment using rubbing method (THR method) has advantage in obtaining large area uniformity and productivity because of non-requirement of large equipment. This project examined the applicability of this method for display device. Tilted homeotropic alignment becomes important recently because it is necessary for the positive type Guest-Host LCDs and highly multiplexed ECB type LCDs. The evaporation method followed by homeotropic treatment gives small tilted homeotropic alignment of liquid-crystal molecules is obtained by evaporation followed by homeotropic treatment, but the method needs a vacuum equipment. The investigator has proposed a new alignment technique of small tilted homeotropic alignment using rubbing method (THR) method without evaporation processes. The experimental results indicated that the mechanism of the tilted alignment closely related to the rubbed surface structure of the substrate.In the research, the geometrical structure of the alignment surface was observed and its applicability for display device was discussed. As the results, the followings are clarified. The oblique evaporation method has disadvantage in obtaining large area uniformity and producibility because of requirement of large vacuum equipment. The THR method, however, does not need the oblique evaporation and is able to be applied to the display with infinite area. Therefore, it is suitable for large area display and mass-production.

使用摩擦方法（THR方法）的小倾斜同型对准的新的对齐技术在获得大面积均匀性和生产力方面具有优势，因为不需要大型设备。该项目检查了此方法对显示器的适用性。倾斜的同型对准最近变得很重要，因为它是阳性型宾客主持人LCD和高度多重的欧洲央行型LCD所必需的。蒸发方法随后进行同型治疗，可以通过蒸发进行液晶分子的同型倾斜度对齐，然后进行同型治疗，但该方法需要真空设备。研究人员提出了一种使用摩擦方法（THR）方法的小倾斜同型对准的新对准技术，而无需蒸发过程。实验结果表明，倾斜比对的机理与底物的摩擦表面结构密切相关。在研究中，观察到对齐表面的几何结构，并讨论了其适用于显示设备的适用性。结果，阐明了以下内容。由于需要大型真空设备，因此倾斜的蒸发方法在获得大面积均匀性和生产力方面具有不利地位。但是，THR方法不需要倾斜蒸发，并且能够使用无限区域应用于显示。因此，它适用于大面积显示和批量生产。