Tactile sensor formed on polyimide thin film having high total light transmittance, and switching device using same
US12003235B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2020 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Sep 1, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2465/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light, flexible, and tough thin film having high total light transmittance that can be formed on various three dimensional shapes, and also provides a stably driven tactile sensor, which is an electronic device having the switching function thereof, is provided. The tactile sensor is formed on a polyimide thin film having high total light transmittance, thermal resistance, and a polar component of surface free energy with a specific value, and has a switching device that emits a voltage signal which, through an electronic circuit for controlling noise, stably drives another device. This tactile sensor has a curved or flat surface and has a first electrode, a ferroelectric layer, and a second electrode formed over the polyimide thin film. The switching device as a tactile sensor can drive another device merely by a light touch with a finger, and can be manufactured at a high non-defective rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.