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Piezoelectric film detection device and piezoelectric film sensor

A piezoelectric film and detection device technology, which is applied in the fields of measurement, instrumentation, and electrical digital data processing using the properties of piezoelectric devices, and can solve the problem of not being able to detect the specific location of a knocking event.

Active Publication Date: 2021-06-18
TYCO ELECTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the piezoelectric film can only detect whether there is a knock event, but not the specific location of the knock event.

Method used

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  • Piezoelectric film detection device and piezoelectric film sensor
  • Piezoelectric film detection device and piezoelectric film sensor
  • Piezoelectric film detection device and piezoelectric film sensor

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0047] figure 1 A schematic diagram showing a piezoelectric thin film sensor according to a first embodiment of the present invention; figure 2 Shows that the tap event occurred on figure 1 Schematic diagram of the outer region of the piezo film sensor shown; image 3 Shows that the tap event occurred on figure 1 A schematic diagram of the inner region of the piezo film sensor is shown.

[0048] Such as Figure 1 to Figure 3 As shown, in the illustrated embodiment, the piezoelectric film sensor is suitable for mounting on the touch panel 10 for detecting a tap event applied on the touch panel 10 .

[0049] In one embodiment of the present invention, a piezoelectric film detection device including the illustrated piezoelectric film sensor is disclosed for detecting the location where a tap event occurs.

[0050] Such as Figure 1 to Figure 3 As shown, in the illustrated embodiment, the piezoelectric film sensor includes a plurality of piezoelectric films C1, C2 and defin...

no. 2 example

[0068] Figure 4 A schematic diagram showing a piezoelectric film sensor according to a second embodiment of the present invention; Figure 5 Shows that the tap event occurred on Figure 4 Schematic in the outer region on one side of the piezo film sensor shown; Figure 6 Shows that the tap event occurred on Figure 4 Schematic in the outer region on the other side of the piezo film sensor shown; Figure 7 Shows that the tap event occurred on Figure 4 A schematic diagram of the inner region of the piezo film sensor is shown.

[0069] Such as Figure 4 to Figure 7 As shown, in the illustrated embodiment, the piezoelectric film sensor is suitable for mounting on the touch panel 10 for detecting a knock event applied on the touch panel 10 .

[0070] In one embodiment of the present invention, a piezo film detection device including the illustrated piezo film sensor is disclosed for detecting the location where a tap event occurs.

[0071] Such as Figure 4 to Figure 7 As...

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Abstract

The invention discloses a piezoelectric film detection device and a piezoelectric film sensor. The piezoelectric film detection device includes a piezoelectric film sensor, which is suitable for being mounted on the touch panel, and is used for detecting a knock event applied on the touch panel. The piezoelectric film sensor includes a plurality of piezoelectric films and defines an internal area; the piezoelectric film detection device also includes a position judging device, and the position judging device is adapted to output detection signals according to the plurality of piezoelectric films It is judged whether the occurrence location of the knock event is in the inner area of ​​the piezoelectric film sensor.

Description

technical field [0001] The invention relates to a piezoelectric film sensor and a piezoelectric film detection device comprising the piezoelectric film sensor. Background technique [0002] In the prior art, piezoelectric films can be used to sense whether a hand is tapped on a solid surface (eg, a touch panel). When the hand hits a solid surface, a mechanical wave will be generated. After the mechanical wave is transmitted on the solid surface, the piezoelectric film attached to the solid surface will generate charges due to the pressure. By measuring the charge of the piezoelectric film, it is possible to sense whether the hand has a knock event. occur. However, the piezoelectric film can only detect whether there is a knock event, but not the specific location where the knock event occurs. Contents of the invention [0003] An object of the present invention is to solve at least one aspect of the above-mentioned problems and deficiencies in the prior art. [0004] Ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/16
CPCG01L1/16G06F3/0414
Inventor 冯玉林宋玉明陈进
Owner TYCO ELECTRONICS (SHANGHAI) CO LTD