Braille Display Using EAP

使用 EAP 的盲文显示器

• 批准号: 7526876
• 负责人: QIMING ZHANG
• 金额: $ 43.16万
• 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/7526876
• 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; size; 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）：该计划的目标是开发新型电活性聚合物（EAP）致动器技术，用于可刷新的全页盲文显示器和图形显示器。基于 R21 计划所奠定的经验和成功基础，这项工作的目标是设计和开发具有优化性能、低成本、紧凑尺寸以及高可靠性和可重复性的电活性聚合物盲文执行器。 EAP的组成和加工方式将得到改进和优化。还将设计和开发以低制造成本大规模生产这些盲文执行器所需的制造装置和加工程序。将设计和开发盲文单元，可直接替代目前单行可刷新盲文显示器中基于压电陶瓷执行器的盲文单元，并适用于多行和全页显示。该计划的总体目的是加快创建基于电活性聚合物致动器的低成本、紧凑尺寸、轻量级和用户友好的可刷新盲文显示器，该显示器可以直接取代目前市场上成本高昂的单行盲文显示器，并且可以轻松实现多行和全页盲文显示器，从而使那些将从使用此类设备中受益的人能够广泛使用。需要一种低成本的多行和全页可刷新盲文显示系统，以便盲人和视障人士能够更有效地访问基于计算机的信息，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，我们开发了几种新型电活性聚合物，其产生的应变比商业可刷新盲文显示器中使用的压电陶瓷高两个数量级，弹性能量密度高一个数量级。 R21 计划获得的结果表明，正在开发的 EAP 执行器可以成功用于盲文执行器。该项目将把张的团队在电活性聚合物和执行器开发方面的专业知识与拉恩团队在机电一体化设计方面的专业知识相结合，将电气和机械组件耦合到新颖的设备中。宾夕法尼亚州立大学的该项目将得到 ViewPlus 在盲文显示器方面的专业知识的补充。这些专业知识的结合提供了独特的机会来开发这些紧凑型盲文执行器，这些执行器具有低成本、紧凑的尺寸和优化的性能，可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。