Document Type

Article

Publication Date

6-30-2025

Abstract

This paper provides a comprehensive mapping literature review of the advancements in refreshable Braille display (RBD) technology, which employs dynamically movable pins or dots to render Braille characters for individuals with blindness and visual impairment. This literature review, which includes 96 papers, aims to summarize the current evidence on six distinct types of RBDs: piezoelectric, electromagnetic, electroactive polymer (EAP), pneumatic, shape memory alloy (SMA), and microfluidic technologies. For each type, we discuss the underlying mechanisms, alongside the current trends and research opportunities. This comparative analysis aims to inform the selection of appropriate RBD technology based on specific user needs and application contexts. Our findings highlight the diverse approaches in RBD design, emphasizing innovations that enhance tactile feedback, durability, and portability.

Comments

This article was originally published in Displays, volume 90, in 2025. https://doi.org/10.1016/j.displa.2025.103133

Copyright

The authors

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

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