Pressure detection device and pressure detection touch device
A detection device and pressure technology, applied in the field of MEMS, can solve the problems of slow touch screen, low reliability, fear of tapping, etc., and achieve the effect of high touch precision, high reliability and accurate detection
Pending Publication Date: 2018-06-12
MEMSENSING MICROSYST SUZHOU CHINA
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Problems solved by technology
The positioning of resistive touch technology is accurate, but its price is high, and it is afraid of being scratched and easily damaged; the design concept of capacitive touch technology is reasonable, but its image distortion problem is difficult to be fundamentally solved, and it is afraid of knocking; the price of infrared touch technology Inexpensive, but its outer frame is fragile, prone to light interference, and distortion in the case of a curved surface; surface acoustic wave touch technology solves various defects of the previous touch screen, clear and not easy to be damaged, suitable for various occasions, the disadvantage is that the screen surface Water droplets and dust will make the touch screen dull, or even not work; optical touch technology has good image clarity, but the touch life is affected by the life of the light source, and it is easily interfered by dust, oil and water
It can be seen that the above various touch methods have low reliability and cannot detect the size of the touch pressure.
Method used
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[0023] The specific implementations of the pressure detection device and the pressure detection touch device provided by the present invention will be described in detail below in conjunction with the accompanying drawings.
[0024] Please refer to figure 1 , is a schematic cross-sectional structure diagram of a pressure detection touch device according to a specific embodiment of the present invention.
[0025] The pressure detection touch device includes: a panel 17 ; a pressure detection device; an adhesive layer 16 is provided between the pressure detection device and the panel 17 . The panel 17 may be a display panel, and the pressure detection device is used to obtain the touch pressure on the display panel, so as to realize touch control.
[0026] Specifically, the pressure detection device includes: a substrate 11 having opposite first surfaces 12 and second surfaces 13, and the substrate 11 is a flexible circuit board. The pressure detection device further includes ...
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Abstract
The invention relates to a pressure detection device and a pressure detection touch device. The pressure detection device comprises a substrate and a plurality of strain gauge sensors, wherein the substrate is provided with a first surface and a second surface which are opposite; the substrate has a flexible circuit board; and the strain gauge sensors are positioned on the first surface of the substrate and are arranged in an array manner. The substrate deforms easily under the effect of pressure, strain is transmitted to the strain gauge sensors, and therefore, pressure of a position subjected to the pressure is detected.
Description
technical field [0001] The invention relates to the technical field of MEMS, in particular to a pressure detection device and a pressure detection touch device. Background technique [0002] With the development of intelligent electronic products, among various technologies of human-computer interaction, touch is the most widely used technology. Its typical technologies are touch screen and touch buttons, which are applied in various electronic products, such as: smart Human-computer interaction systems such as mobile phones, tablet computers, and vehicle-mounted computers. [0003] According to different working principles, touch technology can be divided into resistive, capacitive, infrared, surface acoustic wave, optical and so on. The positioning of resistive touch technology is accurate, but its price is high, and it is afraid of being scratched and easily damaged; the design concept of capacitive touch technology is reasonable, but its image distortion problem is diff...
Claims
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IPC IPC(8): G01L1/22G06F3/041
CPCG06F3/0414G01L1/2262
Inventor 李刚胡维吕萍
Owner MEMSENSING MICROSYST SUZHOU CHINA