TWM505648U - Touch device with fingerprint identification - Google Patents

Description

Touch device with fingerprint identification

A touch device with fingerprint recognition, which integrates a fingerprint recognition chip into a fingerprint recognition touch device on a touch panel.

With the rapid development of multimedia technology, more and more smart portable electronic devices such as mobile phones, personal digital assistants (PDAs), digital cameras, personal notebook computers or tablets or wearable devices have become people. A must-have tool in life. However, these portable electronic devices are highly personal. Therefore, once these portable electronic devices are lost or stolen, the information stored therein, such as phone books, photos, materials, etc., may be used by others, causing unnecessary losses.

Therefore, such products need to be matched with certain identity authentication and permission management to ensure the privacy of users. The main method of identity authentication currently used is password protection, and the user needs to input the correct password to the portable electronic device before entering the control page of the portable electronic device. However, password protection is less secure because passwords are more likely to be compromised or compromised. In addition, if the user forgets the password, it is also very troublesome. Therefore, there is a portable electronic device that uses fingerprint identification for identity authentication. Since each person's fingerprints are different, the fingerprint can be regarded as unique, which makes the security of identity authentication using fingerprint recognition much improved. Moreover, the method of using identity authentication using fingerprint identification is relatively convenient, so that the user can save the cumbersome memory and password entry.

The current fingerprint identification system is widely used in handheld devices or mobile devices. The most common fingerprint identification devices are independently designed, for example, on a fixed side of a notebook computer keyboard or a fixed position on the back side or the bottom side of a hand-held mobile device. It cannot be effectively integrated on the touch screen of the handheld mobile device to reduce the volume of the handheld mobile device, and the conventional fingerprint identification chip package module mainly includes a substrate, a wafer and a mold body. The wafer is disposed on the substrate and electrically connected to the substrate, and the mold body covers the surface of the substrate and the wafer.

Generally, when a finger touches a sensing area of a wafer, since the outer surface of the wafer is covered with a multilayer film, the overall thickness of the chip package module is high, and the chip package module has low sensitivity.

In addition, the conventional slip-type fingerprint identification system has a directionality, and the recognition time is too long and the recognition is not good and must be set independently, which results in poor structural integration or ease of use.

Therefore, in order to effectively solve the above problems, the main purpose of the present invention is to provide a fingerprint recognition touch device that integrates a fingerprint identification chip and a touch panel.

In order to achieve the above object, the present invention provides a touch device with fingerprint identification, comprising: a glass substrate, a first electrode layer, an insulating layer, a second electrode layer, a trace layer, a film layer, and a film Fingerprint identification layer;

The glass substrate has a first plane and a second plane. The first and second planes are disposed on the upper and lower sides of the glass substrate, and a touch area and a non-touch area are defined on the first plane. The non-touch area is adjacent to the touch area; the first electrode layer is disposed on the second plane of the glass substrate, the first electrode layer has a plurality of first electrodes; the insulating layer covers the first electrode layer; The second electrode layer is disposed on the other side of the insulating layer opposite to the first electrode layer, the second electrode layer has a plurality of second electrodes; the wiring layer has a plurality of wires disposed in the non-touch area, and the The wire selection is electrically connected to the first and second electrode layers; the film layer covers the second electrode layer and the wiring layer;

The fingerprint recognition sensing layer is disposed on the other side of the film layer opposite to the second electrode layer, and has a plurality of fingerprint identification chips and a plurality of transmission wires, and the fingerprint identification chips are electrically connected to the transmission wires.

By integrating the fingerprint recognition chip on the touch panel, the manufacturing cost can be saved, and the touch sensitivity and accuracy can be improved.

1‧‧‧Touching device with fingerprint identification

11‧‧‧ glass substrate

11a‧‧‧ touch area

11b‧‧‧ non-touch area

111‧‧‧ first plane

112‧‧‧ second plane

12‧‧‧First electrode layer

121‧‧‧First electrode

13‧‧‧Insulation

14‧‧‧Second electrode layer

141‧‧‧second electrode

15‧‧‧Line layer

151‧‧‧Wire

16‧‧‧film layer

17‧‧‧Fingerprint sensing layer

171‧‧‧Fingerprint identification chip

172‧‧‧Transmission wire

173‧‧‧Metal wire

18‧‧‧Shielding layer

19‧‧‧Protective layer

1 is an exploded perspective view of a first embodiment of a fingerprint device with fingerprint recognition;

2 is a combined cross-sectional view of a first embodiment of a fingerprint device with fingerprint identification;

Figure 3 is a cross-sectional view of the combination of the second embodiment of the fingerprint device of the present invention;

Figure 4 is a cross-sectional view of the combination of the third embodiment of the fingerprint device of the present invention;

Figure 5 is a plan view of the fingerprint identification layer of the fourth embodiment of the fingerprint device with fingerprint identification;

Figure 5a is a partial enlarged view of the fingerprint identification layer of the fourth embodiment of the fingerprint device with fingerprint identification;

Figure 6 is a cross-sectional view of the combination of the fifth embodiment of the fingerprint device of the present invention.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

Please refer to FIG. 1 and FIG. 2 for a perspective exploded view and a combined cross-sectional view of the first embodiment of the touch device with fingerprint identification. As shown in the figure, the touch device 1 with fingerprint identification includes: a glass substrate 11, a first electrode layer 12, an insulating layer 13, a second electrode layer 14, a trace layer 15, a film layer 16, a fingerprint identification layer 17;

The glass substrate 11 has a first plane 111 and a second plane 112. The first and second planes 111 and 112 are disposed on the upper and lower sides of the glass substrate 11 to define a touch on the first plane 111. The control area 11a and the non-touch area 11b are adjacent to the touch area 11a, that is, the non-touch area 11b is disposed outside the touch area 11a.

The first electrode layer 12 is disposed on the second plane 112 of the glass substrate 11. The first electrode layer 12 has a plurality of first electrodes 121 disposed on the touch area 11a and partially extended to The non-touch area 11b.

The insulating layer 13 covers the first electrode layer 12 described above.

The second electrode layer 14 is disposed on the other side of the first electrode layer 12 opposite to the insulating layer 13. The second electrode layer 14 has a plurality of second electrodes 141. The second electrode layer 14 is also disposed corresponding to the second electrode layer 14 The touch area 11a extends partially to the non-touch area 11b.

The wiring layer 15 has a plurality of wires 151 disposed on the non-touch region 11b, and the wires 151 are selectively electrically connected to the first and second electrode layers 12 and 14; the film layer 16 covers the second layer. Electrode layer 14 and the wiring layer 15.

The fingerprint recognition sensing layer 17 is disposed on the other side of the film layer 16 opposite to the second electrode layer 14 and has a plurality of fingerprint identification chips 171 and a plurality of transmission wires 172, and the fingerprint identification chips 171 are connected to the transmission wires. 172 electrical connection.

The present invention mainly integrates the plurality of fingerprint identification chips 171 in the fingerprint recognition sensing layer 17 with the first and second electrode layers 12 and 14 in the touch area 11a, thereby improving the touch accuracy and saving manufacturing costs. .

Please refer to FIG. 3 , which is a sectional view of a combination of the second embodiment of the fingerprint device with fingerprint identification. As shown in the figure, some structural features of the embodiment are the same as those of the first embodiment. The difference between the present embodiment and the foregoing first embodiment is that the fingerprint device 1 has a shielding layer 18, and the shielding layer 18 is disposed on the glass substrate 11. The non-touch area 11b of the second plane 112, and the shielding layer 18 is disposed between the glass substrate 11 and the wiring layer 15, and the shielding layer 18 can shield the wiring layer 15 from exposure to the outside. .

Please refer to FIG. 4 , which is a cross-sectional view of a combination of the third embodiment of the fingerprint device with fingerprint identification. As shown in the figure, some structural features of the embodiment are the same as those of the first embodiment. The difference between the present embodiment and the foregoing first embodiment is that the fingerprint device 1 has a protective layer 19 covering the fingerprint sensing layer 17 and the protective layer. The 19 series is selected from any one of epoxy resin or acrylic resin or silicone, and the protective layer 19 prevents the back side of the fingerprint identification wafer layer 17 from being exposed to the outside.

Please refer to FIG. 5 and FIG. 5a, which are top view and partial enlarged view of the fingerprint identification layer of the fourth embodiment of the fingerprint device with fingerprint identification. As shown in the figure, some structural technical features of the embodiment are The foregoing first embodiment is the same, and therefore will not be described herein again. However, the difference between the present embodiment and the foregoing first embodiment is that the fingerprint identification sensing layer 17 has a plurality of metal wires 173, and the metal wires 173 are transparent. And disposed adjacent to the fingerprint identification wafer 171, the metal wire 173 is disposed mainly to enhance the recognition rate of the fingerprint recognition chip 171 for fingerprint recognition.

Please refer to FIG. 6 , which is a sectional view of a combination of the fifth embodiment of the fingerprint device with fingerprint identification. As shown in the figure, the structural features of the embodiment are the same as those of the first embodiment. The difference between the present embodiment and the foregoing first embodiment is that the fingerprint recognition sensing layer 17 is disposed on the first plane 111 of the glass substrate 11.

1‧‧‧Touching device with fingerprint identification

11‧‧‧ glass substrate

11a‧‧‧ touch area

11b‧‧‧ non-touch area

111‧‧‧ first plane

112‧‧‧ second plane

12‧‧‧First electrode layer

121‧‧‧First electrode

13‧‧‧Insulation

14‧‧‧Second electrode layer

141‧‧‧second electrode

15‧‧‧Line layer

151‧‧‧Wire

16‧‧‧film layer

17‧‧‧Fingerprint sensing layer

171‧‧‧Fingerprint identification chip

172‧‧‧Transmission wire

Claims (5)

[Item 1] A touch device with fingerprint identification, comprising:
a glass substrate having a first plane and a second plane, wherein the first and second planes are disposed on the upper and lower sides of the glass substrate, and a touch area and a non-touch area are defined on the first plane The non-touch area is adjacent to the touch area;
a first electrode layer is disposed on the second plane of the glass substrate, the first electrode layer having a plurality of first electrodes;
An insulating layer covering the first electrode layer;
a second electrode layer is disposed on the other side of the first electrode layer opposite to the insulating layer, the second electrode layer has a plurality of second electrodes;
a wiring layer having a plurality of wires disposed in the non-touch area, and the wires are electrically connected to the first and second electrode layers;
a film layer covering the second electrode layer and the wiring layer;
a fingerprint identification sensing layer is disposed on the other side of the film layer opposite to the second electrode layer or the first plane of the glass substrate, and has a plurality of fingerprint identification chips and a plurality of transmission lines, and the fingerprint identification The wafer system is electrically connected to the transmission wires. [Item 2] The touch device with fingerprint identification according to claim 1, wherein the masking layer is further provided with a shielding layer, and the shielding layer is disposed on the non-touch area of the second plane of the glass substrate, and the shielding The layer is disposed between the glass substrate and the wiring layer. [Item 3] The touch device with fingerprint identification as described in claim 1, wherein a protective layer is further disposed to cover the fingerprint sensing layer, and the protective layer is selected from epoxy resin or acrylic resin or Any of the silicones. [Item 4] The touch-sensitive device of claim 1, wherein the fingerprint-sensing layer has a plurality of metal wires, and the metal wires are transparent and disposed adjacent to the fingerprint-identifying wafers. [Item 5] The touch device with fingerprint identification as described in claim 1, wherein the non-touch area is disposed outside the touch area.