Title:
TACTILE SENSOR FORMED ON POLYIMIDE THIN FILM HAVING HIGH TOTAL LIGHT TRANSMITTANCE, AND SWITCHING DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/255920
Kind Code:
A1
Abstract:
The present invention can be used to manufacture at a high non-defective rate by solution processing a polyimide thin film sensor substrate, which is a light, supple, and tough thin film component having high total light transmittance that can form various three dimensional shapes, and also provides a stably driven tactile sensor, which is an electronic device having the switching function thereof. This tactile sensor, which has been formed on a polyimide thin film having a high total light transmittance, thermal resistance, and a surface free energy polar component with a specific value, is a switching device that emits a voltage signal, and this signal, through an electronic circuit for controlling noise derived from a living body or the environment, 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, which have been formed by a printing method over the polyimide thin film. In addition, a switching device which is a tactile sensor capable of driving another device merely by being lightly touched with a finger, through an electronic circuit for controlling noise derived from a human body or the environment, can be manufactured at a high non-defective rate.
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Inventors:
OKABE JUN
SUNAGA TADAHIRO
TOKITO SHIZUO
SEKINE TOMOHITO
SUNAGA TADAHIRO
TOKITO SHIZUO
SEKINE TOMOHITO
Application Number:
PCT/JP2020/023394
Publication Date:
December 24, 2020
Filing Date:
June 15, 2020
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
G01L1/16; C08G73/10; C08J7/04; H01L41/113; H01L41/193
Domestic Patent References:
WO2017183678A1 | 2017-10-26 | |||
WO2016010003A1 | 2016-01-21 |
Foreign References:
JP2015190863A | 2015-11-02 | |||
JP2013021176A | 2013-01-31 | |||
US20140060210A1 | 2014-03-06 | |||
JP2014034590A | 2014-02-24 | |||
JPS6259390B2 | 1987-12-10 | |||
JP6369919B2 | 2018-08-08 | |||
JP2018136954A | 2018-08-30 | |||
JPH0147492B2 | 1989-10-13 | |||
JPS608970B2 | 1985-03-07 | |||
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JPH0217058B2 | 1990-04-19 | |||
JP2019113906A | 2019-07-11 |
Other References:
See also references of EP 3988914A4
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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