Touch awakening fingerprint imaging module group and touch awakening apparatus thereof

Abstract

The present invention provides a touch awakening fingerprint imaging module group and a touch awakening apparatus thereof. The fingerprint imaging module group comprises a protection layer, a protector connected to the protection layer, a sensing layer and a processing chip connected to the sensing layer. According to the present invention, human body static electricity is obtained by the protection layer and is discharged to a ground end by the protector connected to the protection layer. Induced charge formed on the sensing layer by a capacitor structure formed by the protection layer and the sensing layer can be effectively reduced, so that a discharge current from the sensing layer to the processing chip can be effectively reduced, thereby reducing possibility of damaging the processing chip by the discharge current and effectively protecting the processing chip.

Description

technical field [0001] The invention relates to the field of fingerprint identification, in particular to a wake-up by touch fingerprint imaging module and a wake-up by touch device. Background technique [0002] With the development of semiconductor technology, mobile terminal devices have more and more functions. With the powerful functions of mobile terminal equipment, the energy consumption of the equipment also increases. However, due to the limited battery capacity of the mobile terminal, in order to reduce the energy consumption of the fingerprint imaging module and prolong the standby time, power management has always been a very important part of the development of the mobile terminal. [0003] Wake-up technology is a power management method in the prior art: when the device is not in use, the device is put into sleep mode to reduce power consumption; Convert to working state. [0004] refer to Figure 1 to Figure 3 , shows a schematic structural diagram of a con...

AI Technical Summary

Problems solved by technology

But when the finger 1 touches the metal protective frame 14, the static electricity of the human body is easily conducted to the metal protective frame 14.

Static electricity from the human body can easily damage the processing chip 12

[0009] Electro-Static Discharge (Electro-Static Discharge) technology can reduce the problem of damage to the processing chip 12, but the existing electrostatic discharge technology can only improve the problem of damage to the processing chip 12 in a small range, and cannot meet the use requirements

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