Terminal touch button implementation method and terminal
An implementation method and terminal technology, applied in the field of electronics, can solve problems such as cost increase and complicated design process, and achieve the effect of solving cost increase, simplifying design process and saving design.
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Embodiment 1
[0025] Such as figure 2 As shown, the implementation method of the terminal touch button in Embodiment 1 of the present invention includes:
[0026] Step 21: Obtain a detection result of the capacitance of a preset area on the surface of the terminal housing by a capacitive touch detection module, the capacitive touch detection module is integrated in the fingerprint recognition module of the terminal;
[0027] Step 22: According to the detection result, judge whether the change value of the capacitance is greater than a preset threshold;
[0028] Step 23: When the change value of the capacitance is greater than a preset threshold, perform a predefined operation corresponding to the detection result.
[0029] Among them, the preset area in the first embodiment of the present invention is preferably 3, corresponding to the menu function, fingerprint identification and HOME function, and return function respectively; the capacitor can be a PCB board (Printed Circuit Board, pri...
Embodiment 2
[0036] The implementation method of the terminal touch key provided by the second embodiment of the present invention integrates the function of the touch key into the fingerprint recognition chip, as shown in image 3 As shown, the functions of touch buttons and fingerprint recognition are realized through the fingerprint recognition chip.
[0037] Among them, the working principle of the terminal touch button is as follows: Figure 4 As shown: there is capacitance between any two conductive objects, and the two exposed copper areas between the PCB board or FPC board are the two plates of the capacitor, which is equal to a capacitor, which itself has a certain capacitance value. When the finger d of the human body is close to the PCB board, due to the conductivity of the human body, the size of the capacitance will be changed. When the change of the capacitance value exceeds a certain threshold, it can be considered that a finger touches the fingerprint chip IC.
[0038] Th...
Embodiment 3
[0046] Such as Figure 7 As shown, the terminal in Embodiment 3 of the present invention includes:
[0047] Fingerprint identification module 71;
[0048] Capacitive detection module 72, the capacitive detection module is integrated in the fingerprint identification module;
[0049] The processing module 73 is configured to obtain the detection result of the capacitance of a preset area on the surface of the terminal shell by the capacitive touch detection module, and judge whether the change value of the capacitance is greater than a preset value according to the detection result. threshold, and when the change value of the capacitance is greater than the preset threshold, execute a predefined operation corresponding to the detection result.
[0050] Wherein, the preset area in the third embodiment of the present invention is preferably 3, respectively corresponding to the menu function, fingerprint identification and HOME function, and return function; the capacitor can be...
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