Touch apparatus integrating pressure-sensing function

Abstract

The present invention discloses a touch apparatus integrating a pressure-sensing function. A display module is disposed at the bottom of the touch apparatus; a touch module and a cover body are disposed above the display module; the touch module is located on a conducting layer on the surface of the display module and is connected to the display module; a gap is formed between the touch module and the display module; the cover body is connected to and covers the touch module; when external touch force is applied to the cover body, the touch module bends in a force application direction of the external force due to the pressure, so that the change of the gap can lead to corresponding change of the capacitance and the pressure; and a specific frequency signal is configured for the display module and can distinguish the capacitance between the touch module and the display module, changed by the external force, and the pressure on the cover body and the touch module. According to the apparatus provided by the present invention, the pressure is sensed by using the change of the gap distance, and it is easier for the specific frequency signal in the display module to distinguish the external force such as finger clicking, and the pressure sensed capacitance.

Description

technical field [0001] The present invention relates to the design of a touch device, in particular to a touch device with an integrated pressure sensing function capable of performing pressure sensing through touch pressure and changes in capacitance value therein. Background technique [0002] With the popularization of the touch function, many high-tech products have the touch function, and are operated by clicking and touching. According to the touch sensing method, it can be subdivided into: electrical signals, such as resistive, capacitive, and electromagnetic; optical signals, such as infrared; acoustic signals, such as surface acoustic wave, Acoustic waveguide type, dispersion signal type and acoustic pulse type, etc. However, today's mainstream touch technology is mainly based on capacitive touch. Compared with the early resistive touch, capacitive touch is an indirect touch and has higher reliability. [0003] At present, capacitive touch is to detect the capacit...

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Problems solved by technology

[0005] However, in a general capacitive touch device, if a pressure sensing device is added, the overall thickness of the touch device will be increased. , DSA), foam (Sponge or Gasket) and other materials are replaced by piezoelectric materials, although it does not increase the overall thickness of the touch device, but the signal of the pressure sensing device needs to be provided to the system side, and it is necessary to add another A circuit is used for connection, and a specific IC chip is required to process the pressure sensing signal. Regardless of the thickness or the cost of additional circuits and chips, it is a considerable cost when mass-producing touch devices.

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