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Fingerprint recognition detection assembly and terminal device

A technology of fingerprint identification and detection components, which is applied in the field of biometric identification, can solve the problems of difficult formation of fingerprint patterns and too far away, and achieve the effect of preventing ESD and improving reliability

Active Publication Date: 2014-10-01
NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When performing fingerprint identification through a fingerprint identification sensor, the distance between the fingerprint surface of a person's finger and the fingerprint identification sensor cannot be too far. If the distance is too far, it will be difficult to form an accurate fingerprint pattern.

Method used

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  • Fingerprint recognition detection assembly and terminal device
  • Fingerprint recognition detection assembly and terminal device
  • Fingerprint recognition detection assembly and terminal device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Figure 4 It is a schematic diagram of the grounding of the grounding lead in one embodiment of the present invention.

[0055] A plurality of through holes 111 are formed on the substrate 11 , and conductive materials, such as silver, copper, gold, aluminum and other metals or combinations thereof, are respectively disposed in the plurality of through holes 111 .

[0056] In some embodiments, the shape of each through hole 111 is preferably circular, because in the manufacturing process, if the diameter of the through hole is made too large, the substrate panel is easy to break, and if the diameter is too small, the filling process cannot be realized. Therefore, the diameter of the through hole 111 is preferably in the range of 20 μm-45 μm, but the present invention is not limited thereto. When the through hole 111 is polygonal, its diameter refers to the diameter of its circumscribed circle.

[0057] The manufacturing process for forming the plurality of through hol...

Embodiment 2

[0060] Figure 5 It is a schematic diagram of the grounding of the grounding lead in another embodiment of the present invention.

[0061] In this embodiment, the fingerprint recognition and detection component 1 further includes: a side lead 33 , a first lead 34 , and a second lead 35 .

[0062] Wherein, the substrate 11 has a first surface a, a second surface b corresponding to the first surface, and a side surface c connecting the first surface a and the second surface b.

[0063] The side leads 33 are formed on the side c of the substrate 11 by sputtering or silk printing, and the side leads 33 connect the first surface a and the second surface b of the substrate 31 .

[0064] The first lead 34 is formed on the first surface a of the substrate 11 by sputtering or silk printing. One end of the first lead 34 is connected to the ground lead 131 , and the other end is connected to the first end of the side lead 33 . The second lead 35 is formed on the second surface b of the...

Embodiment 3

[0066] Figure 6 It is a schematic diagram of the grounding of the grounding wire in another embodiment of the present invention.

[0067] In this embodiment, the fingerprint recognition and detection component 1 further includes: a flexible substrate 43 and a lead wire 44 .

[0068] The substrate 11 has a first surface a, a second surface b corresponding to the first surface, and a side surface c connecting the first surface and the second surface.

[0069] A groove 1a is also formed on the first surface a of the substrate 11, the flexible base material 43, the shielding layer 13 and the fingerprint recognition sensing element 12 are accommodated in the groove 1a, and the side c of the substrate 11 is also provided with a groove 1a. The groove 1 c accommodates the flexible substrate 43 .

[0070] The total height of the flexible substrate 43 , the fingerprint identification sensing element 12 and the shielding layer 13 can match the depth of the groove 1 a, for example, the...

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Abstract

The invention discloses a fingerprint recognition detection assembly and a terminal device. The fingerprint recognition detection assembly comprises a substrate, a shielding layer formed on the substrate and comprising at least one grounding lead wire, a first embossing layer formed on the substrate, conductive grids formed in the grooves and a fingerprint recognition sensing element formed on the shielding layer, wherein the surface of the first embossing layer is provided with multiple grooves. The fingerprint recognition detection assembly can prevent ESD damage and other signal interference through the leaded and grounded shielding layer and improve the fingerprint recognition reliability.

Description

technical field [0001] The invention relates to the technical field of biological identification, in particular to a fingerprint identification detection component and a terminal device including the same. Background technique [0002] In recent years, with the development of storage technology, terminal devices such as smart phones and tablet computers store a large amount of personal information and other important data, and its security has become more important. At present, passwords, graphics and other forms are often used to realize the password protection of its terminal equipment. [0003] However, for encryption methods such as passwords and graphics, users need to remember the set passwords and / or graphics; in addition, there is a danger of password disclosure in public places. In order to improve security, it is often necessary to increase the complexity of passwords and graphics, which undoubtedly further increases the difficulty of user memory, causing conflict...

Claims

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Application Information

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IPC IPC(8): G06K9/00
Inventor 谭强丁国栋蒋亚兵
Owner NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH