Triboelectric Touch‐Free Screen Sensor for Noncontact Gesture Recognizing

An intelligent human–machine interface (HMI) is a crucial medium for exchanging information between people and electronics. As one of the most important HMI devices, touch screen sensors are widely applied in personal electronics in daily life. However, as the most commonly used touch screen sensor,...

Full description

Saved in:
Bibliographic Details
Published in:Advanced functional materials Vol. 30; no. 5
Main Authors: Tang, Yingjie, Zhou, Hao, Sun, Xiupeng, Diao, Ninghua, Wang, Jianbo, Zhang, Baosen, Qin, Cheng, Liang, Erjun, Mao, Yanchao
Format: Journal Article
Language:English
Published: Hoboken Wiley Subscription Services, Inc 01.01.2020
Subjects:
Electronics
gesture recognizing
graphene
Human body
human–machine interfaces
Interactive computer systems
Materials science
Product development
Sensors
Touch screens
touch‐free
triboelectric nanogenerator
ISSN:1616-301X, 1616-3028
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An intelligent human–machine interface (HMI) is a crucial medium for exchanging information between people and electronics. As one of the most important HMI devices, touch screen sensors are widely applied in personal electronics in daily life. However, as the most commonly used touch screen sensor, capacitive sensors can only detect limited kinds of gestures such as touching and sliding. Here, a triboelectric touch‐free screen sensor (TSS) is reported for recognizing diverse gestures in a noncontact operating mode by utilizing the charges naturally carried on the human body. Compared with conventional capacitive sensors, the TSS is capable of detecting various gestures such as the drop and lift of finger with different speeds, making a fist, opening palm, and flipping palm with different directions. Based on the TSS, an intelligent noncontact screen control system is further developed, which is used to unlock the smartphone interface by the noncontact operating mode. This research for the first time proposes the concept that taking the human body itself to participate in triboelectric self‐powered noncontact sensing and provides a touch‐free design concept to develop the next generation of screen sensors. It can alter the usual way that people operating their personal electronics. A triboelectric touch‐free screen sensor (TSS) for recognizing diverse gestures is successfully demonstrated. Based on the TSS, an intelligent noncontact screen control system is further developed, which realizes the unlocking of a smartphone interface via the noncontact operating mode. This TSS with the noncontact gesture sensing method could make a remarkable breakthrough in establishing intelligent human–machine interactions.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201907893