Investigation of Performance Change of Textile Keyboard due to the Dielectric Material and Electrode Characteristics

In recent years, mobile devices have become indispensable devices for everyday life. However, the types and technologies of mobile devices that are soft and easy to carry are not sufficient. It is urgently necessary to develop and disseminate supplementary measures to improve their communication as part of securing the equal rights of disabled people to social members. In order to address the gap between disabled and non-disabled people in terms of utilization of information and communication technology and to improve the smart mobile usage environment, this study aimed to develop an alternative means. The Braille keyboard for the visually impaired developed in the fabric form exhibited a good signal-to-noise ratio value of 41.14 when a P40 insulation layer was inserted between two conductive layers. This is because there is a factor due to the difference in permittivity, and the change in the distance between the conductive layers due to the applied load is greatest.

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Investigation of Performance Change of Textile Keyboard due to the Dielectric Material and Electrode Characteristics

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