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Study for Digital Paper Technology

电子纸技术研究

基本信息

批准号：
10650344
负责人：
OMODANI Makoto
金额：
$ 1.92万
依托单位：
TOKAI UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650344/
关键词：
Digital Paper Paper-like display Rewritable paper Human-interface Electrophoretic Reflective LCD Twisting ball display PDLC

项目摘要

"Digital Paper" was recently proposed as a new medium that offers the advantages of both softcopy and hardcopy. This study aims at (1) to clarify the ideal human-interface for Digital Paper, and (2) to realize new display devices for Digital Paper.(1) Study for clarifying ideal human-interface for the Digital PaperThis study aims at comparison of operation efficiency between hardcopy work and softcopy work. Our goal is to clarify the reason why hardcopy work is generally comfortable for human, and to know human-interface requirements for the Digital Paper. Objective tests and subjective tests were carried out, and the difference between hardcopy and softcopy media were clarified.(2)Study for realizing display devices for the Digital Paper.2.1 Twisting ball display methodWe carry out basic experiments into ball behavior by using enlarged scale model balls. Threshold electric fields for bistable motion and response time when switching ball direction are measured under various conditions. A theoretical study on the moments of ball rotation is introduced. An equation that yields ball rotation is described that is based on the coulomb force.2.2 G/H type PDLCA guest-host type liquid crystal sheet medium was prepared. An ion projection head was used for surface charge formation. It was confirmed that white images could be repeatedly formed on a black background by ion projection followed by image erasure to the black background by heating. It is demonstrated that this sheet medium has ideal characteristics ; it reproduces the viewing angle and flexibility of paper.2.3 Electrophoretic display methodWe prepared a microcapsule electrophoretic display as the medium and an ion projection head as the driver ; clear white images on a blue background were achieved. As digital paper, this medium offers the significant benefits of non-contact writing by ion projection, ease of manufacturing, and physical flexibility.

“数字纸”最近被提出作为一种新的媒体，它提供了软拷贝和硬拷贝的优点。本研究旨在(1)明确理想的数字纸人机界面；(2)实现新的数字纸显示设备。(1)澄清数字论文理想人机界面的研究。本研究旨在比较硬拷贝工作和软拷贝工作的操作效率。我们的目标是澄清为什么硬拷贝工作通常对人类来说是舒适的，并了解数字纸的人机界面需求。进行了客观试验和主观试验，明确了硬拷贝和软拷贝介质的区别。(2)数字纸显示装置的实现研究。2.1扭球显示方法我们利用放大比例模型球进行了球的基本行为实验。测量了不同条件下双稳态运动的阈值电场和切换球方向时的响应时间。介绍了球转动力矩的理论研究。描述了基于库仑力的球旋转方程。制备了2.2 G/H型PDLCA主客型液晶片介质。离子投射头用于表面电荷形成。证实了在黑色背景上用离子投影法可反复形成白色图像，然后加热将图像擦除到黑色背景上。结果表明，这种片状介质具有理想的特性；2.3电泳显示方法制备了微胶囊电泳显示器作为介质，离子投影头作为驱动器；在蓝色背景上获得了清晰的白色图像。作为数字纸张，这种介质通过离子投射提供了非接触式书写的显著优势，易于制造和物理灵活性。