JP3196113U - Touch panel with fingerprint identification function - Google Patents

Abstract

A touch panel structure having a fingerprint identification function is provided. A touch panel structure having a fingerprint identification function composed of a glass substrate, an electrode layer, an insulating layer, and a fingerprint identification sensor layer, the glass substrate having a first plane and a second plane. The electrode layer is provided on the second plane. The electrode layer includes a plurality of first 121, a second electrode 122, and a plurality of metal traces 123. The first and second electrodes are electrically connected to the metal traces. The insulating layer covers a portion where the first and second electrodes cross each other, the fingerprint identification sensor layer is provided on the first plane of the glass substrate, and includes a plurality of fingerprint identification chips 141 and a plurality of transmission cables 142. The chip is electrically connected to the transmission cable. By integrating the fingerprint identification chip and the touch panel into one, the manufacturing cost is reduced and the accuracy of fingerprint identification is improved. [Selection] Figure 1

Description

  The present invention relates to a structure of a touch panel having a fingerprint identification function, and particularly to a structure of a touch panel having a fingerprint identification function in which a fingerprint identification chip is integrated with a touch panel.

  The technology related to mass media has been evolving rapidly, and mobile phones, personal digital assistants, digital cameras, personal laptop computers or tablet terminals, or smart portable electronic devices, which are increasingly wearing devices, are already in use. , Has become a daily necessities for people. However, many of these portable electronic devices have personal characteristics. In the unlikely event that it is lost or stolen, information stored inside the phone book, photos, data, etc. may be used by others, and it may suffer unexpected losses.

  Therefore, in order to ensure the safety of the user's privacy, this type of product requires a system that must be managed with personal authentication and permission rights accordingly. The main method of personal authentication currently used is a password, and the user can first enter the correct password into the portable electronic device and then enter the operation page of the portable electronic device. However, the security of password protection is relatively low, and the cause is that the password is relatively easy to leak or break. Also, if the user forgets the password, it is very troublesome. Therefore, a portable electronic device for identifying personal authentication by fingerprint has been devised. Since each person's fingerprint is different, the fingerprint has the characteristic of uniqueness, and the security for identifying the personal authentication using the fingerprint is very high. In addition, a method of identifying personal authentication using a fingerprint is relatively convenient, and a complicated procedure for a user to forget and input a password can be omitted.

  Current fingerprint identification systems are widely applied to handheld or portable devices, and the most frequently seen fingerprint identification devices are of independent design, such as a fixed one-sided laptop keyboard or a handheld portable device. It is impossible to reduce the volume of the handheld portable device by effectively combining it with the touch monitor of the handheld portable device, such as being in a fixed position on the back side or the bottom side of one end. The package module of the conventional fingerprint identification chip includes a substrate, a chip, and a mold body. The chip is placed on the substrate and electrically connected to the substrate, and the mold body covers the surface of the substrate and the chip.

  In general, for the convenience of touching the sensor area of a chip with a finger, the thickness of the entire chip package module is increased by covering the outer surface of the chip with a multilayer film, and therefore the sensitivity of the chip package module is relatively low. Become.

  In addition, the slide type fingerprint identification system of the prior art is directional in operation, the identification time is too long, and it is necessary to install it independently. None of the aspects were very good and further improvements were needed.

JP 2009-224112 A JP 2010-1032410 A

  In order to solve the drawbacks of the known structure, it is a main object of the present invention to provide a touch panel structure having a fingerprint identification function in which a fingerprint identification chip and a touch panel are integrated.

  In order to solve the above problems, the present invention provides a touch panel structure having a fingerprint identification function, which includes a glass substrate, an electrode layer, an insulating layer, and a fingerprint identification sensor layer.

The upper and lower surfaces of the glass substrate are defined as a first plane and a second plane, respectively, and the first plane is partitioned into a touch zone and a non-touch zone, and the non-touch zone is arranged adjacent to the touch zone.
The electrode layer is provided on a second plane of the glass substrate, and the electrode layer includes a plurality of first electrodes, a plurality of second electrodes, and a plurality of metal traces. The first and second electrodes are in electrical connection with the metal trace. The insulating layer covers a portion where the first and second electrodes intersect. The fingerprint identification sensor layer is provided on the first plane of the glass substrate, and includes a plurality of fingerprint identification chips and a plurality of transmission cables, and the fingerprint identification chips are electrically connected to the transmission cables.

  By integrating the fingerprint identification chip into the touch panel, manufacturing costs can be saved, and touch sensitivity and authentication accuracy can be increased.

  The present invention integrates a fingerprint identification chip and a touch panel into one to significantly reduce the overall manufacturing cost and increase the accuracy of fingerprint identification.

1 is an exploded view of a first embodiment of a touch panel having a fingerprint identification function of the present invention. 1 is an assembled cross-sectional view of a first embodiment of a touch panel having a fingerprint identification function according to the present invention. It is an assembly sectional view of the second embodiment of the touch panel having the fingerprint identification function of the present invention. FIG. 5 is an assembled cross-sectional view of a third embodiment of the touch panel having the fingerprint identification function of the present invention. It is an overhead view of the fingerprint identification layer of the fourth embodiment of the touch panel having the fingerprint identification function of the present invention. FIG. 6 is a local enlarged view of FIG. 5 of the touch panel having the fingerprint identification function of the present invention.

Hereinafter, the structure, features, and effects of the present invention will be described in detail with reference to the drawings.

  FIG. 1 and FIG. 2 are a three-dimensional exploded view and an assembled sectional view of a first embodiment of a touch panel having a fingerprint identification function of the present invention. As shown in the figure, the glass substrate 11, the electrode layer 12, the insulating layer 13, and the fingerprint identification sensor layer 14 constitute the touch panel 1 having the fingerprint identification function of the present invention.

  The glass substrate 11 has upper and lower surfaces as a first plane 11a and a second plane 11b, respectively, and the first plane 11a is divided into a touch zone 11c and a non-touch zone 11d, and the non-touch zone 11d is separated from the touch zone 11c. The non-touch zone 11d is provided outside the touch zone 11c so as to be adjacent to each other.

  The electrode layer 12 is provided on the second plane 11 b of the glass substrate 11, and the electrode layer 12 includes a plurality of first electrodes 121, a plurality of second electrodes 122, and a plurality of metal traces 123. The first and second electrodes 121 and 122 are electrically connected to the metal trace 123, and the metal trace 123 is placed on the second plane 11b of the glass substrate 11 relative to the non-touch zone 11d.

  The insulating layer 13 covers a portion where the first electrode 121 and the second electrode 122 cross each other, and when the first and second electrodes 121 and 122 are wired, some areas are overlapped and contacted. In addition, since the insulating layer 13 covers a portion where the first electrode 121 and the second electrode 122 intersect, the first electrode 121 or the second electrode 122 can be smoothly extended and wired.

  The fingerprint identification sensor layer 14 is provided on the first plane 11 a of the glass substrate 11 and includes a plurality of fingerprint identification chips 141 and a plurality of transmission cables 142, and the fingerprint identification chips 141 are electrically connected to the transmission cables 142. .

  The fingerprint identification chip 141 includes a sensor zone 141a and a top surface 141b, and the sensor zone 141a is formed on the top surface 141b.

  In the present invention, a plurality of fingerprint identification chips 141 in the fingerprint identification sensor layer 14 and the electrode layer 12 are grouped together in the touch zone 11c, so that the touch accuracy rate can be increased and the manufacturing cost can be saved.

FIG. 3 is an assembled cross-sectional view of a second embodiment of the touch panel having the fingerprint identification function of the present invention. As shown in the figure, the technical features of a part of the structure of the present embodiment are the same as those of the first embodiment, and therefore will not be mentioned here again.
The difference between the present embodiment and the first embodiment is that the touch panel 1 having a fingerprint identification function further includes a shielding layer 15. The shielding layer 15 is provided in the non-touch zone 11 d of the second plane 11 b of the glass substrate 11, and the shielding layer 15 is provided between the glass substrate 11 and the metal trace 123. Further, the metal trace 123 is shielded through the shielding layer 15 and is not exposed to the outside.

  FIG. 4 is an assembled sectional view of a third embodiment of the touch panel having the fingerprint identification function of the present invention. As shown in the figure, the technical features of a part of the structure of the present embodiment are the same as those of the first embodiment, and therefore will not be mentioned here again. The difference between the present embodiment and the first embodiment is that the touch panel 1 having a fingerprint identification function further includes one protective layer 16 and covers the fingerprint identification sensor layer 14. The protective layer 16 is made of either epoxy, acrylic resin, or silicon resin, and the protective layer 16 prevents the back surface of the fingerprint identification chip 141 from being exposed to the outside.

  5 and 6 are a plan view and a local enlarged view of the fingerprint identification layer of the fourth embodiment of the touch panel having the fingerprint identification function of the present invention. As shown in the figure, the technical features of a part of the structure of the present embodiment are the same as those of the first embodiment, and therefore will not be mentioned here again. The difference between the present embodiment and the first embodiment is that the fingerprint identification sensor layer 14 further includes a plurality of metal cables 143, the metal cables 143 exhibit transparency, and are adjacent to the fingerprint identification chip 141. Install. The installation of the metal cable 143 is to increase the identification rate when the fingerprint identification chip 141 performs fingerprint identification.

DESCRIPTION OF SYMBOLS 1 Touch panel 11 which has fingerprint identification function Glass substrate 11a First plane 11b Second plane 11c Touch zone 11d Non-touch zone 12 Electrode layer 121 First electrode 122 Second electrode 123 Metal trace 13 Insulating layer 14 Fingerprint identification sensor layer 141 Fingerprint identification Chip 141a Sensor zone 141b Top surface 142 Transmission cable 143 Metal cable 15 Shielding layer
16 Protective layer

Claims (7)

Consists of glass substrate, electrode layer, insulating layer, fingerprint identification sensor layer,
The glass substrate is divided into a first plane and a second plane opposite thereto, and the first plane is divided into a touch zone and a non-touch zone, and the non-touch zone is disposed adjacent to the touch zone,
The electrode layer is provided on the second plane of the glass substrate, and a plurality of first electrodes and a plurality of second electrodes and a plurality of metal traces, the first and second electrodes are electrically connected to the metal traces,
The insulating layer covers a portion where the first and second electrodes intersect,
The fingerprint identification sensor layer is provided on a first plane of the glass substrate, and includes a plurality of fingerprint identification chips and a plurality of transmission cables, and the fingerprint identification chips are electrically connected to the transmission cables. Touch panel structure that also has an identification function.   2. The structure of a touch panel having a fingerprint identification function according to claim 1, wherein the fingerprint identification chip has a sensor zone and a top surface, and the sensor zone is formed on the top surface.   2. The method according to claim 1, further comprising a shielding layer, wherein the shielding layer is provided in the non-touch zone on the second plane of the glass substrate, and the shielding layer is provided between the glass substrate and the metal trace. The structure of a touch panel having the described fingerprint identification function.   2. The fingerprint identification function according to claim 1, further comprising a protective layer, wherein the protective layer covers the fingerprint identification sensor layer, and the protective layer is made of epoxy, acrylic resin, or silicon. Touch panel structure.   2. The touch panel structure having a fingerprint identification function according to claim 1, wherein the metal trace is disposed in a non-touch zone.   The fingerprint identification function according to claim 1, wherein the fingerprint identification sensor layer further includes a plurality of metal cables, the metal cables exhibit transparency, and are disposed adjacent to the fingerprint identification chip. Touch panel structure that combines.   The touch panel structure having a fingerprint identification function according to claim 1, wherein the non-touch zone is arranged outside the touch zone.

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