TWI811166B - Indenter for fingerprint test - Google Patents

Abstract

An indenter for fingerprint testing is suitable for covering a fingerprint totem on a sample to be tested. The indenter for fingerprint testing includes a conductive module and a background layer. The conductive module can move relative to the sample to be tested along a top-to-bottom direction, and includes a contact surface suitable for pressing the sample to be tested. The background layer covers the contact surface and is used to drive the fingerprint totem against the sample to be tested. Since the background layer covers the conductive module, and the conductive module is made of conductive material, the present invention can simulate human fingers, replacing the traditional manual testing of the sample to be tested, which not only saves manpower, but also has high practicability .

Description

Indenter for fingerprint test

The invention relates to a pressing jig, in particular to an indenter for fingerprint testing which saves manpower and has high practicability.

Today's smart phones mostly use finger fingerprints to unlock the screen. Since human fingers have bioelectric current, by installing a sensor capable of receiving the bio current in the smart phone, the finger and fingerprint can be detected. The sensor is, for example, a capacitive sensor or an optical sensor. The capacitive sensor senses through the change of the charge of the finger or fingerprint, while the optical sensor achieves the detection function through the cooperation of the light and the photosensitive element. After the user taps the screen of the smart phone with a finger to wake up the smart phone, the sensor detects the fingerprint of the finger to achieve the function of unlocking the screen of the smart phone.

In the process of testing the functions of smart phones, the industry needs to repeatedly press the screen with artificial fingers to test and simulate the functions of smart phones, which is not only labor-intensive, but also time-consuming.

Therefore, the object of the present invention is to provide an indenter for fingerprint testing that can save manpower and has high practicability.

Therefore, the fingerprint test indenter of the present invention is suitable for covering a fingerprint totem on a sample to be tested, and the fingerprint test indenter includes a conductive module and a background layer.

The conductive module can move relative to the sample to be tested along a top-to-bottom direction. The conductive module is made of conductive material and includes a contact surface suitable for pressing the sample to be tested.

The background layer covers the contact surface and is used to drive the fingerprint totem against the sample to be tested.

The effect of the present invention is: the background layer is pasted on the contact surface of the conductive module, and the background layer is used to drive the fingerprint totem to contact the sample to be tested. The present invention can simulate human fingers, replacing the traditional The test of the sample to be tested is performed manually, which saves time and manpower.

Referring to FIG. 1 to FIG. 3 , a first embodiment of the indenter for fingerprint testing of the present invention is suitable for covering a fingerprint totem 4 on a sample 9 to be tested (as in FIG. 4 ). The indenter for fingerprint testing includes a conductive module 1 , a background layer 2 and a fingerprint film 3 .

The conductive module 1 is made of conductive material, and includes a contact surface 11 for pressing against the sample 9 to be tested (as shown in FIG. 4 ), and a mounting surface 12 opposite to the contact surface 11 along a top-bottom direction Z. .

It should be noted that, in this first embodiment, the conductive module 1 is made of conductive rubber, but the conductive module 1 can also be made of metal or other materials that also have conductive properties, and the present invention does not rely on this limit.

In the first embodiment, the material of the background layer 2 is silicone and the color is skin color. The background layer 2 covers the contact surface 11 .

The fingerprint film 3 is formed with the fingerprint totem 4 . In this first embodiment, the fingerprint film 3 is arranged between the background layer 2 and the sample 9 (as shown in FIG. 4 ), and is designed to be transparent or partially transparent for the background layer The color of 2 can appear through this fingerprint film 3.

Referring to FIG. 3 to FIG. 5 , in the first embodiment, the sample to be tested 9 is a smart phone. The fingerprint testing indenter of the present invention is installed on a drive unit 5 . The driving unit 5 includes a pressing plate 51 pressed against the mounting surface 12 of the conductive module 1, a motor group 52 capable of forcing the pressing plate 51 to move toward the sample 9 along the top-bottom direction Z, and a motor set for Install the fingerprint film 3 and the stage 53 between the press plate 51 and the sample 9 to be tested.

During testing, the motor assembly 52 of the driving unit 5 can drive the conductive module 1 to move in the top-bottom direction Z through the pressing plate 51 . When the conductive module 1 moves toward the sample 9 to be tested, the background layer 2 will first contact the fingerprint film 3 on the stage 53, and press the fingerprint film 3 to contact the sample 9 to reach the fingerprint. The totem 4 abuts against the sample 9 to be tested. Thereby, it is possible to test the detection function of the sensor (not shown) in the sample to be tested 9 for the fingerprint totem 4 through a stable pressing force and action. And when the conductive module 1 moves away from the sample 9 along the top-bottom direction Z, the background layer 2 is away from the fingerprint film 3 and the fingerprint totem 4 is away from the sample 9 .

It is worth mentioning that the fingerprint film 3 is not limited to be placed on the carrier 53 , and in other variations of the first embodiment, it can also be directly pasted on the background layer 2 as shown in FIG. 6 . Thereby, when the driving unit 5 drives the conductive module 1 to move in the top-bottom direction Z, the fingerprint totem 4 can also abut against the sample 9 to be tested.

Referring to Fig. 7, a second embodiment of the indenter for fingerprint testing of the present invention is similar to the first embodiment, except that:

The background layer 2 is formed with the fingerprint totem 4 . Thereby, when the background layer 2 is in contact with the sample 9 to be tested (as shown in FIG. 5 ), the fingerprint totem 4 can also be abutted against the sample 9 to be tested (as shown in FIG. 5 ). The second embodiment omits the fingerprint film 3 shown in FIG. 1 .

Through the above description, the advantages of the aforementioned embodiments can be summarized as follows:

1. In the traditional testing of the sample 9 to be tested, it is necessary to repeatedly press the sample 9 to be tested by manual fingers. In this embodiment, the background layer 2 of skin color is covered on the conductive module 1 to simulate human fingers. The method replaces labor, saves time and saves manpower.

2. The fingerprint totem 4 can be formed on the background layer 2 ( FIG. 7 ) or on the fingerprint film 3 ( FIG. 1 ) in accordance with different manufacturing processes or practical requirements. Thereby, through the design of changing the installation position of the fingerprint totem 4, the present invention has higher practicability.

But what is described above is only an embodiment of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

1: Conductive module 11: Contact surface 12: Mounting surface 2: Background layer 3:Fingerprint film 4: Fingerprint Totem 5: Drive unit 51: Platen 52: Motor group 53: Carrier 9: Sample to be tested Z: top and bottom direction

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a perspective view illustrating a first embodiment of an indenter for fingerprint testing according to the present invention; Fig. 2 is a perspective view viewed from the bottom side to the top side of the first embodiment; Fig. 3 is a sectional view of the first embodiment; Fig. 4 is a schematic sectional view illustrating that the first embodiment is installed in a drive unit; Fig. 5 is a schematic cross-sectional view similar to Fig. 4, but a conductive module presses a fingerprint film in contact with a sample to be tested; Figure 6 is a perspective view similar to Figure 1, but the fingerprint film is attached to a background layer; and FIG. 7 is a perspective view illustrating a second embodiment of the indenter for fingerprint testing according to the present invention.

1: Conductive module

11: Contact surface

12: Mounting surface

2: Background layer

3:Fingerprint film

4: Fingerprint Totem

Claims (6)

An indenter for fingerprint testing is suitable for covering a fingerprint totem on a sample to be tested, and the indenter for fingerprint testing includes: A conductive module that can move relative to the sample to be tested along a top-to-bottom direction, the conductive module is made of conductive material, and includes a contact surface suitable for pressing the sample to be tested; and A background layer covers the contact surface and is used to drive the fingerprint totem against the sample to be tested. The indenter for fingerprint testing according to Claim 1, wherein the background layer is formed with the fingerprint totem and is suitable for contacting the sample to be tested. The indenter for fingerprint testing as described in claim 1 further includes a fingerprint film, the fingerprint film is formed with the fingerprint totem, the fingerprint film is arranged between the background layer and the sample to be tested, and is in contact with the background layer When the sample is to be tested, it is in contact with the sample to be tested. The indenter for fingerprint testing according to any one of claims 1 to 3, wherein the color of the background layer is skin color. The indenter for fingerprint testing according to claim 1, wherein the conductive module is made of conductive rubber. The indenter for fingerprint testing according to claim 1, wherein the material of the background layer is silicon rubber.

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