Braille Display Using EAP

使用 EAP 的盲文显示器

• 批准号: 7664323
• 负责人: QIMING ZHANG
• 金额: $ 44.56万
• 依托单位: PENNSYLVANIA STATE UNIVERSITY, THE
• 依托单位国家: 美国
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2011-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7664323
• 关键词: Arts; Automation; Braille Display; Cells; Complement; Computers; Couples; Deposition; Development; Devices; Education; Electrodes; Employment Opportunities; Engineering; Evaluation; Exploratory/Developmental Grant; Feedback; Film; Foundations; Goals; Grant; Hand; Indium; Institutes; Internet; Laboratory Research; Lead; Life; Manuals; Marketing; Mechanics; Modeling; Modification; Motion; Natural graphite; Nature; Performance; Polymers; Procedures; Process; Production; Quality of life; Reproducibility; Research; Research Project Grants; Resolution; Signal Transduction; Stretching; Structure; System; Technology; Time; Visual impairment; Visually Impaired Persons; Weight; Work; base; blind; braille; cost; design; experience; improved; nanocomposite; novel; programs; prototype; scale up; user-friendly; voltage

DESCRIPTION (provided by applicant): The objective of this program is to develop novel electroactive polymer (EAP) actuator technology for refreshable full page Braille display and graphic display. Built upon the experiences and successful foundation laid by a R21 program, the goal of this work is to design and develop electroactive polymer Braille actuators with optimized performance, low cost, compact size, and high reliability and reproducibility. EAPs composition and processing conductions will be improved and optimized. Fabrication set-ups and processing procedures necessary for mass producing these Braille actuators with low fabrication cost will also be designed and developed. Braille cells will be designed and developed which can directly replace the piezoceramic actuator based Braille cell in the current single line refreshable Braille display and suitable for multiline and full page displays. The overall intent of this program is to expedite the creation of low cost, compact size, lightweight, and user friendly refreshable Braille displays, based on electroactive polymer actuators, that can directly replace the currently marketed cost-prohibitive Braille single line and can be easily implemented for multiline and full page Braille displays, thus allowing for the widespread access to those who would benefit from the use of such devices. A low cost multiline and full page refreshable Braille display system is needed so that the blind and visually impaired can more effectively access computer based information, enhancing their education and employment opportunities, and improving their quality of life. In recent years, we have developed several novel electroactive polymers which generate strain two orders of magnitude and elastic energy denisty one order of magnitute higher than these in the piezoceramics used in the commercial refreshable Braille displays. The results obtained by the R21 program show great promise that the EAP actuators under development can be successfully used for Braille actuators. This program will combine the expertise at Zhang's group in the electroactive polymers and in actuator development with the expertise at Rahn's group in mechatronic desigh that couples electrical and mechanical components in novel devices. The program at Penn State will be complemented by the expertises at ViewPlus on the Braille display. This combined experties provides unique opportunity to develop these compact Braille actuators with low cost, compact size, and optimized performance to be directly transitioned to practical refreshable graphite Braille display and full page Braille display.

描述（由申请人提供）： 本计划的目的是开发新的电活性聚合物（EAP）致动器技术，用于可刷新的全页盲文显示和图形显示。基于R21项目的经验和成功的基础，本工作的目标是设计和开发具有优化性能、低成本、紧凑尺寸、高可靠性和可重复性的电活性聚合物盲文致动器。将改进和优化EAP的组成和加工条件。此外，亦会设计及发展低成本的点字驱动器的制造装置及工艺流程。将设计和开发盲文单元，它可以直接取代目前单行可刷新盲文显示器中基于压电陶瓷致动器的盲文单元，并适用于多行和整页显示。该计划的总体目的是加快创建低成本，紧凑尺寸，重量轻，用户友好的可刷新盲文显示器，基于电活性聚合物致动器，可以直接取代目前市场上的成本高昂的盲文单线，并可以很容易地实现多行和整页盲文显示器，从而允许广泛访问那些谁将受益于使用这种设备。需要一种低成本的多行和整页可刷新的盲文显示系统，以便盲人和视障人士可以更有效地获取基于计算机的信息，增加他们的教育和就业机会，并提高他们的生活质量。近年来，我们已经开发了几种新型的电活性聚合物，其产生的应变两个数量级和弹性能量密度比商业可刷新盲文显示器中使用的压电陶瓷高一个数量级。R21计划所获得的结果表明，正在开发的EAP致动器可以成功地用于盲文致动器。该计划将联合收割机的专业知识，在张的小组在电活性聚合物和致动器的发展与专业知识，在拉恩的机电一体化设计，耦合电气和机械部件的新设备。宾夕法尼亚州立大学的项目将得到ViewPlus盲文显示器的专业知识的补充。这种结合的专业知识提供了独特的机会，以开发这些紧凑的盲文致动器，具有低成本，紧凑的尺寸和优化的性能，直接过渡到实用的可刷新石墨盲文显示器和全页盲文显示器。