CN110188674B - Fingerprint identification module, touch display panel and display device - Google Patents

Fingerprint identification module, touch display panel and display device Download PDF

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Publication number
CN110188674B
CN110188674B CN201910458823.1A CN201910458823A CN110188674B CN 110188674 B CN110188674 B CN 110188674B CN 201910458823 A CN201910458823 A CN 201910458823A CN 110188674 B CN110188674 B CN 110188674B
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fingerprint identification
sensor
sensing
transmitting
receiving
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CN110188674A (en
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袁月
李龙翔
邓达希
崔江东
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Bazhou Yungu Electronic Technology Co ltd
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Bazhou Yungu Electronic Technology Co ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12Fingerprints or palmprints

Abstract

The invention relates to the technical field of fingerprint identification, and discloses a fingerprint identification module, a touch display panel and a display device. This fingerprint identification module includes transmitting sensor and receiving sensor. The transmitting sensor is used for outputting ultrasonic signals. The receiving sensor is used for receiving a reflected signal of the ultrasonic signal reflected by the finger. The transmitting sensor and the receiving sensor respectively comprise first sensing parts, at least one side of each first sensing part is provided with a plurality of second sensing parts at intervals, and the second sensing parts of the transmitting sensor and the receiving sensor are mutually embedded. Through the mode, the fingerprint identification method and the fingerprint identification device can improve the fingerprint identification efficiency.

Description

Fingerprint identification module, touch display panel and display device
Technical Field
The invention relates to the technical field of fingerprint identification, in particular to a fingerprint identification module, a touch display panel and a display device.
Background
When the ultrasonic wave reaches the surface of different materials, the ultrasonic wave is absorbed, penetrated and reflected to different degrees, and different echoes are generated according to different materials. Based on the method, the difference of the skin and the air to the ultrasonic wave impedance can be used for identifying the fingerprint lines.
And present module based on ultrasonic fingerprint identification technique, its sensor that is used for ultrasonic fingerprint identification distributes the rationality not enough, leads to providing fingerprint identification's information loss serious, influences fingerprint identification's efficiency.
Disclosure of Invention
In view of the above, the technical problem mainly solved by the present invention is to provide a fingerprint identification module, a touch display panel and a display device, which can improve the efficiency of fingerprint identification.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a fingerprint identification module, this fingerprint identification module include transmitting sensor and receiving sensor. The transmitting sensor is used for outputting ultrasonic signals. The receiving sensor is used for receiving a reflected signal of the ultrasonic signal reflected by the finger. The transmitting sensor and the receiving sensor respectively comprise first sensing parts, at least one side of each first sensing part is provided with a plurality of second sensing parts at intervals, and the second sensing parts of the transmitting sensor and the receiving sensor are mutually embedded.
In an embodiment of the present invention, a plurality of second sensing portions are respectively disposed at intervals on two sides of the first sensing portion.
In an embodiment of the invention, the second sensing parts on two sides of the first sensing part are arranged opposite to each other.
In an embodiment of the invention, the second sensing parts on both sides of the first sensing part are arranged in a staggered manner.
In an embodiment of the invention, a line width of the first sensing portion is smaller than a line width of the second sensing portion.
In an embodiment of the present invention, the fingerprint identification module includes a plurality of transmitting sensors and a plurality of receiving sensors arranged in an array, and a fingerprint identification area defined by the plurality of transmitting sensors and the plurality of receiving sensors is defined by a first direction and a second direction which have different extending directions; wherein the transmitting sensors and the receiving sensors are alternately arranged one by one in the first direction and the second direction.
In an embodiment of the invention, the first sensing part and the second sensing part of the transmitting sensor and the first sensing part and the second sensing part of the receiving sensor are spaced or provided with insulating layers.
In order to solve the technical problem, the invention adopts another technical scheme that: a touch display panel is provided, which includes a display panel and a fingerprint identification module as set forth in the above embodiments, the fingerprint identification module being mounted to the display panel.
In an embodiment of the invention, the display panel includes a display area. The area of the fingerprint identification area defined by the transmitting sensor and the receiving sensor is equal to the area of the display panel; and the shape of the fingerprint identification area defined by the transmitting sensor and the receiving sensor corresponds to the shape of the display area of the display panel.
In order to solve the technical problem, the invention adopts another technical scheme that: a display device is provided, which includes a driving circuit and a touch display panel as set forth in the above embodiments, wherein the driving circuit is coupled to the touch display panel.
The invention has the beneficial effects that: different from the prior art, the invention provides a fingerprint identification module, wherein an emitting sensor and a receiving sensor of the fingerprint identification module respectively comprise a first sensing part and a plurality of second sensing parts connected with the first sensing part, at least one side of the first sensing part is provided with the plurality of second sensing parts at intervals, so that the emitting sensor and the receiving sensor are in a comb-shaped structure, and the second sensing parts of the emitting sensor and the receiving sensor are mutually embedded, namely the comb-shaped emitting sensor and the comb-shaped receiving sensor are mutually staggered and embedded, so that the sensing area provided by the emitting sensor and the receiving sensor in a unit area is larger, the loss of ultrasonic signals for fingerprint identification can be reduced, namely the information provided for fingerprint identification is more comprehensive, the time consumption of fingerprint identification is reduced, and the efficiency of fingerprint identification is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. Moreover, the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
FIG. 1 is a schematic diagram of a fingerprint recognition module according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the fingerprint recognition module of the present invention;
FIG. 3 is a schematic structural diagram of a fingerprint recognition module according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a touch display panel according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a display device according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
In order to solve the technical problem of low efficiency of fingerprint identification in the prior art, an embodiment of the present invention provides a fingerprint identification module, which includes an emitting sensor and a receiving sensor. The transmitting sensor is used for outputting ultrasonic signals. The receiving sensor is used for receiving a reflected signal of the ultrasonic signal reflected by the finger. The transmitting sensor and the receiving sensor respectively comprise first sensing parts, at least one side of each first sensing part is provided with a plurality of second sensing parts at intervals, and the second sensing parts of the transmitting sensor and the receiving sensor are mutually embedded. As described in detail below.
Referring to fig. 1-2, fig. 1 is a schematic structural diagram of an embodiment of a fingerprint identification module according to the present invention, and fig. 2 is a schematic diagram of a fingerprint identification module according to the present invention.
In one embodiment, the fingerprint recognition module 1 includes a transmitting sensor 11 and a receiving sensor 12. The transmitting sensor 11 is used for outputting ultrasonic signals, and the receiving sensor 12 is used for receiving reflected signals of the ultrasonic signals reflected by the finger so as to perform fingerprint identification. Specifically, the ultrasonic signal output by the transmitting sensor 11 is transmitted to the surface of the finger, reflected by the finger to form a reflected signal, and transmitted to the receiving sensor 12 to be received by the receiving sensor 12, so as to identify the fingerprint pattern. Because the impedance of human skin and air to ultrasonic wave has the difference, there is more air in fingerprint valley department of finger than fingerprint ridge department for the ultrasonic wave through fingerprint valley and fingerprint ridge reflection presents different characteristics, borrows this and receives behind the ultrasonic signal of finger reflection at receiving transducer 12, can discern the fingerprint line that restores the finger, realizes the fingerprint identification function of fingerprint identification module 1, as shown in figure 1.
The transmitting sensor 11 and the receiving sensor 12 each include a first sensing portion 13 and a plurality of second sensing portions 14 connected to the first sensing portion 13, and each of the first sensing portion 13 and the second sensing portions 14 can perform a corresponding function of transmitting or receiving an ultrasonic signal. The extending directions of the first sensing part 13 and the second sensing part 14 are different, and at least one side of the first sensing part 13 is provided with a plurality of second sensing parts 14 at intervals, namely, the transmitting sensor 11 and the receiving sensor 12 are in a comb-shaped structure. And the mutual gomphosis setting of second sensing part 14 of emitting sensor 11 and receiving sensor 12, the second sensing part 14 of one side imbeds in the homonymy of the other side and between the adjacent second sensing part 14 in emitting sensor 11 and receiving sensor 12 promptly, and emitting sensor 11 and receiving sensor 12 are the same layer setting, comb-shaped emitting sensor 11 and receiving sensor 12 crisscross gomphosis arrangement each other promptly, make the perception area that emitting sensor 11 and receiving sensor 12 provided in the unit area bigger, all there is sufficient sensor perception area when the finger is close to fingerprint identification module 1, for launching and receiving ultrasonic signal, can reduce the loss of the ultrasonic signal who is used for fingerprint identification, the information that provides fingerprint identification is more comprehensive promptly, be favorable to reducing fingerprint identification's consuming time, improve fingerprint identification's efficiency. Generally, mobile terminal equipment such as smart phone is applied to the unblock screen with fingerprint identification module 1, and the fingerprint identification module 1 that this embodiment provided will be favorable to shortening the consuming time that mobile terminal equipment unblock screen.
Note that, the transmitting sensor 11 and the receiving sensor 12 have the same structure, and both are comb-like structures based on the first sensing section 13 and the second sensing section 14, except that the circuits corresponding to the transmitting sensor 11 and the receiving sensor 12 are provided with a function of outputting the ultrasonic signal by the transmitting sensor 11 and a function of receiving the reflected signal of the ultrasonic signal by the receiving sensor 12. That is, the first and second sensing parts 13 and 14 of the transmitting sensor 11 can output ultrasonic signals, and the first and second sensing parts 13 and 14 of the receiving sensor 12 can receive reflected signals of the ultrasonic signals.
In traditional design, transmitting sensor and receiving sensor are independent massive structure usually, and a plurality of transmitting sensor and receiving sensor array arrange and form the module structure of perception discernment fingerprint. In order to realize the electrical connection between each transmitting sensor and each receiving sensor and the external circuit, circuit wiring needs to be designed for each transmitting sensor and each receiving sensor respectively so as to be connected to the external circuit, and the functions of transmitting and receiving ultrasonic signals corresponding to the transmitting sensors and the receiving sensors are realized. The circuit wiring is often inserted between the transmitting sensor and the receiving sensor under the condition that the circuit wiring is arranged on the same layer as the transmitting sensor and the receiving sensor, and the circuit wiring cannot play a role in transmitting and receiving ultrasonic signals, so that the transmitting sensor and the receiving sensor are distributed discretely, namely, sensing areas provided by the transmitting sensor and the receiving sensor in a unit area are small, and the transmission and the reception of the ultrasonic signals are influenced.
In the present embodiment, the first sensing portion 13 is connected to the plurality of second sensing portions 14, that is, the first sensing portion 13 and the plurality of second sensing portions 14 connected thereto are communicated with each other. In this way, as long as the circuit trace is designed for any one of the first sensing part 13 and the plurality of second sensing parts 14 connected thereto to electrically connect with an external circuit, the function of transmitting or receiving ultrasonic signals can be realized, which is beneficial to simplifying the circuit structure of the fingerprint identification module 1 for controlling the operation of the transmitting sensor 11 and the receiving sensor 12. Meanwhile, for the above situation that the circuit wiring and the transmitting sensor 11 and the receiving sensor 12 are arranged on the same layer, the number of the circuit wiring between the transmitting sensor 11 and the receiving sensor 12 can be reduced, so that the transmitting sensor 11 and the receiving sensor 12 are more closely distributed, that is, the sensing area provided by the transmitting sensor 11 and the receiving sensor 12 in a unit area is larger, the loss of ultrasonic signals for fingerprint identification can be reduced, and the efficiency of fingerprint identification is favorably improved.
Please continue to refer to fig. 1. In an embodiment, the fingerprint identification module 1 includes a plurality of transmitting sensors 11 and a plurality of receiving sensors 12 that the array was arranged, and this a plurality of transmitting sensors 11 and a plurality of receiving sensors 12 constitute the sensor array of fingerprint identification module 1. The plurality of transmitting sensors 11 and the plurality of receiving sensors 12 define a fingerprint identification area 15 of the fingerprint identification module 1. Fingerprint identification is regional 15 to be defined as fingerprint identification module 1 and is used for the perception to discern the region of pointing the fingerprint, and it is defined by the different first direction X of extending direction and second direction Y.
Alternatively, the first direction X and the second direction Y are preferably perpendicular to each other. The extending direction of the first sensor unit 13 is preferably a first direction X, and the extending direction of the second sensor unit 14 is preferably a second direction Y.
Further, the transmitting sensors 11 and the receiving sensors 12 are alternately arranged in the first direction X and the second direction Y one by one, and the adjacent transmitting sensors 11 and receiving sensors 12 are in the staggered and embedded arrangement, so that the loss of ultrasonic signals for fingerprint identification can be reduced, and the efficiency of fingerprint identification is improved.
Specifically, the first sensing portions 13 and the second sensing portions 14 of the transmitting sensor 11 and the first sensing portions 13 and the second sensing portions 14 of the receiving sensor 12 are alternately arranged in the first direction X and the second direction Y. The distribution uniformity and concentration degree exhibited by the alternate arrangement of the second sensing portions 14 of the transmitting sensors 11 and the receiving sensors 12 in the first direction X and the second direction Y are more excellent than those exhibited by the first sensing portions 13, and therefore the sensor array described above is mainly characterized in that the second sensing portions 14 of the transmitting sensors 11 and the receiving sensors 12 are alternately arranged in the first direction X and the second direction Y, so as to increase the sensing areas provided by the transmitting sensors 11 and the receiving sensors 12 per unit area, and further improve the efficiency of fingerprint recognition. The first sensing parts 13 of the transmitting sensor 11 and the receiving sensor 12 firstly play a role of connecting the corresponding second sensing parts 14 so as to simplify the circuit structure of the fingerprint identification module 1; next, the first sensing portions 13 of the transmitting sensor 11 and the receiving sensor 12 have the corresponding function of transmitting or receiving ultrasonic signals, so as to further increase the sensing area provided by the transmitting sensor 11 and the receiving sensor 12 in a unit area, and further improve the efficiency of fingerprint recognition. Of course, the first sensing portions 13 of the transmitting sensor 11 and the receiving sensor 12 are alternately arranged in the first direction X and the second direction Y, so as to increase the sensing areas provided by the transmitting sensor 11 and the receiving sensor 12 per unit area, and further improve the efficiency of fingerprint identification.
Further, the line width W1 of the first sensing part 13 is smaller than the line width W2 of the second sensing part 14, so as to increase the ratio of the second sensing part 14 in the fingerprint identification region 15 defined by the transmitting sensor 11 and the receiving sensor 12, so that the uniformity and concentration of the distribution of the transmitting sensor 11 and the receiving sensor 12 in the fingerprint identification region 15 are improved, and the sensing area provided by the transmitting sensor 11 and the receiving sensor 12 in a unit area is further increased, thereby increasing the efficiency of fingerprint identification.
Further, in order to avoid mutual interference between the transmitting sensor 11 and the receiving sensor 12, the transmitting sensor 11 and the receiving sensor 12 need not be in contact with each other. Specifically, the first and second sensing portions 13 and 14 of the transmitting sensor 11 and the first and second sensing portions 13 and 14 of the receiving sensor 12 are spaced apart from each other so that the transmitting sensor 11 and the receiving sensor 12 are insulated from each other. And in order to further improve the insulation effect, an insulating layer 16 may be disposed between the first sensing part 13 and the second sensing part 14 of the transmitting sensor 11 and between the first sensing part 13 and the second sensing part 14 of the receiving sensor 12, and the insulating layer 16 is used to isolate the transmitting sensor 11 from the receiving sensor 12, thereby preventing the transmitting sensor 11 and the receiving sensor 12 from forming a short circuit and interfering with each other.
Further, a plurality of second sensing parts 14 are respectively arranged at intervals on two sides of the first sensing part 13, so that the first sensing part 13 is connected with more second sensing parts 14, namely, the occupation ratio of the first sensing part 13 in the fingerprint identification area 15 defined by the transmitting sensor 11 and the receiving sensor 12 is reduced; correspondingly, the occupation ratio of the second sensing part 14 in the fingerprint identification area 15 is improved, the distribution uniformity and concentration degree of the transmitting sensor 11 and the receiving sensor 12 in the fingerprint identification area 15 are further improved, the sensing area provided by the transmitting sensor 11 and the receiving sensor 12 in a unit area is improved, and the fingerprint identification efficiency is further improved. Moreover, the first sensing portion 13 is connected to more second sensing portions 14, so that the design of the circuit traces electrically connecting the sensor and the external circuit can be reduced, and the circuit structure of the fingerprint identification module 1 for controlling the operation of the transmitting sensor 11 and the receiving sensor 12 can be further simplified.
In one embodiment, the second sensing portions 14 on two sides of the first sensing portion 13 are arranged opposite to each other. Fig. 1 shows a case where two second sensing parts 14 on both sides of the first sensing part 13 are arranged opposite to each other. In the fingerprint recognition area 15 defined by the transmitting sensor 11 and the receiving sensor 12, the second sensing parts 14 are symmetrical with respect to the first sensing part 13, and the second sensing parts 14 of the transmitting sensor 11 and the receiving sensor 12 are alternately arranged with each other in the first direction X; and the first sensing part 13 and the second sensing part 14 of the transmitting sensor 11 are arranged adjacent to the first sensing part 13 or the second sensing part 14 of the receiving sensor 12 in the second direction Y, so as to increase the sensing area provided by the transmitting sensor 11 and the receiving sensor 12 in a unit area, and further improve the efficiency of fingerprint identification.
In the above embodiment, since the uniformity of the distribution of the transmitting sensors 11 and the receiving sensors 12 in the second direction Y is poor, referring to fig. 3, in an alternative embodiment of the present invention, the second sensing portions 14 on both sides of the first sensing portion 13 are disposed in a staggered manner to improve the uniformity of the distribution of the transmitting sensors 11 and the receiving sensors 12 in the second direction Y. Specifically, the second sensing portions 14 on both sides of the first sensing portion 13 of the transmitting sensor 11 and the receiving sensor 12 are disposed in a staggered manner, and the second sensing portions 14 of one of the transmitting sensor 11 and the receiving sensor 12 are embedded between the adjacent second sensing portions 14 on the same side of the other, that is, the transmitting sensor 11 and the receiving sensor 12 are arranged in a staggered and embedded manner. In this way, the second sensing portions 14 of the transmitting sensor 11 and the receiving sensor 12 and the portions of the first sensing portions 13 connected thereto are alternately arranged in the second direction Y and are uniformly distributed in the second direction Y, so that sufficient sensing areas of the transmitting sensor 11 and the receiving sensor 12 can be provided when fingerprint recognition is performed, and the efficiency of fingerprint recognition can be improved. In the present embodiment, however, the first sensing parts 13 of the transmitting sensors 11 and the receiving sensors 12 are alternately arranged or the second sensing parts 14 of the transmitting sensors 11 and the receiving sensors 12 are alternately arranged in the first direction X.
In summary, the fingerprint identification module provided by the present invention has the advantages that the transmitting sensor and the receiving sensor respectively include the first sensing portion and the plurality of second sensing portions connected to the first sensing portion, the plurality of second sensing portions are disposed on at least one side of the first sensing portion at intervals, so that the transmitting sensor and the receiving sensor are in a comb-shaped structure, and the second sensing portions of the transmitting sensor and the receiving sensor are mutually embedded, that is, the comb-shaped transmitting sensor and the comb-shaped receiving sensor are mutually staggered and embedded, so that the sensing area provided by the transmitting sensor and the receiving sensor in a unit area is larger, the loss of the ultrasonic signal used for fingerprint identification can be reduced, that is, the information provided for fingerprint identification is more comprehensive, the time consumption of fingerprint identification can be reduced, and the efficiency of fingerprint identification can be improved.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a touch display panel according to an embodiment of the invention.
In an embodiment, the touch display panel 2 includes a display panel 3 and a fingerprint identification module 1, and the fingerprint identification module 1 is installed to the display panel 3. Specifically, the display panel 3 includes a display surface 31, and the display surface 31 is a surface on which the display panel 3 emits light for display. The fingerprint identification module 1 can be located in one side of the display surface 31 far away from the display panel 3 to avoid shielding the display surface 31 of the display panel 3 and ensure the normal luminous display of the display panel 3.
Fingerprint identification module 1 includes transmitting sensor and receiving sensor. The transmitting sensor is used for outputting ultrasonic signals. The receiving sensor is used for receiving a reflected signal of the ultrasonic signal reflected by the finger. The transmitting sensor and the receiving sensor respectively comprise first sensing parts, at least one side of each first sensing part is provided with a plurality of second sensing parts at intervals, and the second sensing parts of the transmitting sensor and the receiving sensor are mutually embedded. It should be noted that the fingerprint identification module 1 has been described in detail in the above embodiments, and thus, the description thereof is omitted.
Further, an area of the display surface 31 of the display panel 3 which is displayed by emitting light is defined as a display area 311. The area of the fingerprint identification area 15 defined by the transmitting sensor and the receiving sensor is equal to the area of the display area 311 of the display panel 3, and the shape of the fingerprint identification area 15 defined by the transmitting sensor and the receiving sensor corresponds to the shape of the display area 311 of the display panel 3, so as to realize fingerprint identification at any position on the display area 311 of the display panel 3. And in the scene of screen unlocking, the fingerprint identification of any position on the screen can be realized to unlock the screen.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a display device according to an embodiment of the invention.
In an embodiment, the display device 4 includes a driving circuit 5 and the touch display panel 2, and the driving circuit 5 is coupled to the display panel 3 of the touch display panel 2 for driving the display panel 3 to implement its display function. The touch display panel 2 is the touch display panel described in the above embodiments, and will not be described herein again.
In addition, in the present invention, unless otherwise expressly specified or limited, the terms "connected," "stacked," and the like are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a fingerprint identification module, its characterized in that, the fingerprint identification module includes:
a transmitting sensor for outputting an ultrasonic signal;
the receiving sensor is used for receiving a reflected signal of the ultrasonic signal reflected by a finger;
the transmitting sensor and the receiving sensor respectively comprise first sensing parts, a plurality of second sensing parts are arranged on at least one side of each first sensing part at intervals, the second sensing parts of the transmitting sensor and the receiving sensor are mutually embedded, the first sensing parts are connected with the second sensing parts, the extending directions of the first sensing parts and the second sensing parts are different, and the transmitting sensor and the receiving sensor are of a comb-shaped structure.
2. The fingerprint identification module of claim 1, wherein the second sensing portions are disposed on two sides of the first sensing portion at intervals.
3. The fingerprint identification module of claim 2, wherein the second sensing portions on two sides of the first sensing portion are opposite to each other.
4. The fingerprint identification module of claim 2, wherein the second sensing portions on both sides of the first sensing portion are disposed in a staggered manner.
5. The fingerprint recognition module of claim 1, wherein the line width of the first sensing portion is smaller than the line width of the second sensing portion.
6. The fingerprint identification module of claim 1, wherein the fingerprint identification module comprises a plurality of the transmitting sensors and a plurality of the receiving sensors arranged in an array, and a fingerprint identification area defined by the plurality of transmitting sensors and the plurality of receiving sensors is defined by a first direction and a second direction which have different extending directions;
wherein the transmitting sensors and the receiving sensors are alternately arranged one by one in the first direction and the second direction.
7. The fingerprint identification module of claim 6, wherein the first and second sensing portions of the transmitting sensor and the first and second sensing portions of the receiving sensor are spaced apart or provided with an insulating layer.
8. A touch display panel, comprising a display panel and the fingerprint identification module of any one of claims 1 to 7, wherein the fingerprint identification module is mounted to the display panel.
9. The touch display panel of claim 8, wherein the display panel comprises a display area;
the area of the fingerprint identification area defined by the transmitting sensor and the receiving sensor is equal to the area of the display panel; and is
The shape of the fingerprint identification area defined by the transmitting sensor and the receiving sensor corresponds to the shape of the display area of the display panel.
10. A display device, comprising a driving circuit and the touch display panel according to claim 8 or 9, wherein the driving circuit is coupled to the touch display panel.
CN201910458823.1A 2019-05-29 2019-05-29 Fingerprint identification module, touch display panel and display device Active CN110188674B (en)

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CN113536962A (en) * 2021-06-24 2021-10-22 武汉天马微电子有限公司 Display device and fingerprint identification method

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Application publication date: 20190830

Assignee: Yungu (Gu'an) Technology Co., Ltd.|Kunshan Guoxian photoelectric Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd

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Denomination of invention: Fingerprint recognition mould group, touch-control display panel and display device

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Record date: 20191030

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