Piezoelectric sheet, touch panel, and input/output device

An input-output, piezoelectric sheet technology, applied in the field of piezoelectric sheets, which can solve the problems of difficult and large-area sheet processing, material hardness and flexibility, and processability.
CN104636013BActive Publication Date: 2020-10-16TIANMA MICRO ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANMA MICRO ELECTRONICS CO LTD
Publication Date
2020-10-16

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Abstract

The present invention relates to a piezoelectric sheet, a touch panel, and an input and output device. It provides a piezoelectric sheet, which includes: a piezoelectric layer; and a first conductive layer. The first conductive layer is arranged on the piezoelectric layer. on one surface of the piezoelectric layer; a second conductor layer disposed on the other surface of the piezoelectric layer; and an insulator layer disposed on the first conductor layer A surface opposite to the surface on which the piezoelectric layer is located, wherein the piezoelectric sheet is configured to detect a touch position in the first conductor layer and detect a touch pressure in the second conductor layer .
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Description

technical field

[0001] The present invention relates to piezoelectric sheets. In particular, the present invention relates to a piezoelectric sheet capable of touch position detection and touch pressure detection. In addition, the present invention relates to an input / output device using these piezoelectric sheets or touch panels. Background technique

[0002] A display and input / output device provided with or combined with a touch panel (also referred to as a touch panel) as an input device is widely put into practical use as a display device, such as a liquid crystal display. In particular, in portable devices such as mobile phones, the use of display and input devices is becoming mainstream. The display and input device having the touch screen enables the user to intuitively operate the device by pressing the display content on the screen of the display device by the user.

[0003] Although there are various systems in touch screens, capacitive systems have gradually i...

Claims

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