CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 11587 > Article
Presentation + Paper
22 March 2021 A 2D refreshable Braille display based on a stiffness variable polymer and pneumatic actuation
Zhixin Xie, Jinsung Kim, Zihang Peng, Yu Qiu, Qibing Pei
Author Affiliations +
Proceedings Volume 11587, Electroactive Polymer Actuators and Devices (EAPAD) XXIII; 115870O (2021) https://doi.org/10.1117/12.2584039
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only
Abstract
Visual impairments limit a person’s ability to process information such as obstacles, environments, reading and especially multimedia content (e.g., photographs and videos). In this work, we present the design and operating mechanism of Braille PolyPad, a prototype 2D refreshable braille display featuring 4×10 braille cells, enabling the transformation of images to 2D braille information. The Braille Polypad is based on a miniature pump enabled pneumatic actuation of Braille pins. The encoder transformed the pattern information to a heating circuits to trigger the softening of a stiffness variable polymer, allowing for large pneumatic actuation in the softened pin area. The braille pattern can switch on and off in 0.5s each regardless of the number of braille cells and pins, with low operation voltage and low power consumption. The technical features in this work could enable low-cost, large-size matrix refreshable braille displays in compact form factor. Full development of the prototype device is still ongoing, including materials optimization, actuation uniformity, and improvement of user-friendly control interface.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Zhixin Xie, Jinsung Kim, Zihang Peng, Yu Qiu, and Qibing Pei "A 2D refreshable Braille display based on a stiffness variable polymer and pneumatic actuation", Proc. SPIE 11587, Electroactive Polymer Actuators and Devices (EAPAD) XXIII, 115870O (22 March 2021); https://doi.org/10.1117/12.2584039
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 7 PAGES + PRESENTATION
DOWNLOAD PAPER SAVE TO MY LIBRARY
WATCH
PRESENTATION
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Polymers
Computer programming
Display technology
Switches
Temperature metrology
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top