Fingerprint module fake-finger test device in self-weight mode

Abstract

The present invention relates to a fingerprint module fake-finger test device in a self-weight mode. The device comprises a pressure device, a device pedestal, a fingerprint module support plate, a fixed shaft, a fixed panel and a stroke toggle clamp. The fixed shaft and the fixed panel are installed on the device pedestal, the fingerprint module support plate is installed at the middle position of the device pedestal, the stroke toggle clamp is arranged at the top end of the fixed panel, the tail end of the stroke toggle clamp is connected with the pressure device to control the pressure device to move up and down so as to apply a constant pressure to the fingerprint module on the fingerprint module support plate, and the pressure device is sleeved with the fixed shaft. The fingerprint module fake-finger test device in self-weight mode employs the stroke toggle clamp to drive the pressure device to move up and down, and takes a weight as a constant pressure through cooperation of an upper connecting rod, a spring and a lower connecting rod to provide the constant pressure for the downward pressure of a false finger of the fingerprint module in the finished product test process soas to ensure that the surface of the fingerprint module bears the constant pressure of the false finger and obtain a clear fingerprint image.

Description

technical field [0001] The invention relates to the field of fingerprint module testing, in particular to a self-weight fingerprint module fake finger testing device. Background technique [0002] At present, electronic products (such as mobile phones) have begun to introduce fingerprint recognition functions, and the related technologies and production processes of fingerprint recognition modules that provide this function in consumer electronic products such as mobile phones are in an incomplete stage, among which, finished product testing is one of them. one. Since the fingerprint module test needs to collect fingerprint images during the process of pressing the fake finger with a fixed pressure, most manufacturers currently use fake finger testing devices with uneven pressure, and it is impossible to guarantee that each product will be kept constant during the test process. The pressure, which has a great impact on the finished product test, makes the fingerprint imagin...

AI Technical Summary

Problems solved by technology

Since the fingerprint module test needs to collect fingerprint images during the process of pressing the fake finger with a fixed pressure, most manufacturers currently use fake finger testing devices with uneven pressure, and it is impossible to guarantee that each product will be kept constant during the test process. The pressure, which has a great impact on the finished product test, makes the fingerprint imaging unclear

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