Control panel sensor and display device

Abstract

The present invention is applicable to the field of capacitive sensing, and provides a control panel sensor, the control panel sensor includes a capacitive sensing key, and a capacitive detector connected to the capacitive sensing key to detect its capacitance change, the capacitive The type induction button includes two copper sheets, one of which is grounded, a capacitor is formed between the copper sheets, an insulating layer is plated on the copper sheet, an induction antenna is arranged on the insulation layer, and the induction antenna is connected to the two A capacitor is formed between each copper sheet. The device includes a control panel sensor for function key control and power key control. In the present invention, by adding an induction antenna, the sensitivity of the control panel sensor is enhanced, thereby reducing the induction distance between the control panel sensor and the conductor. At the same time, the control board sensor is used to realize touch-free button control on television products and display products.

Description

technical field [0001] The invention belongs to the field of capacitive sensing, in particular to a control panel sensor and a display device. Background technique [0002] The principle of the capacitive sensing button is as follows: the capacitive sensing button is generally a pair of adjacent electrodes, and there is a small capacitance between the adjacent electrodes, which is called parasitic capacitance. When a conductor, such as a finger or a human body, approaches the capacitive sensing key, the conductive surface area of ​​the adjacent electrode will be increased, thereby generating an additional capacitance between the electrode and the conductor. Whether the capacitive sensing button is pressed is determined by detecting the capacitance change between the electrode and the conductor by the capacitive detector. The advantage of the capacitive sensing button is that it has good durability, is not easy to be damaged, and realizes touchless control of the button. It...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a control board sensor, aiming at solving the problems of low capacitive sensing sensitivity and difficult control of covering thickness existing in the prior art;

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