CN110119729A - Fingerprint identification module and the fingerprint recognition touch control display for applying it - Google Patents
Fingerprint identification module and the fingerprint recognition touch control display for applying it Download PDFInfo
- Publication number
- CN110119729A CN110119729A CN201910443473.1A CN201910443473A CN110119729A CN 110119729 A CN110119729 A CN 110119729A CN 201910443473 A CN201910443473 A CN 201910443473A CN 110119729 A CN110119729 A CN 110119729A
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- fingerprint
- touch
- group
- control display
- identification module
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- 230000006698 induction Effects 0.000 claims abstract description 25
- 230000001939 inductive effect Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- 101100520142 Caenorhabditis elegans pin-2 gene Proteins 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- KVCQTKNUUQOELD-UHFFFAOYSA-N 4-amino-n-[1-(3-chloro-2-fluoroanilino)-6-methylisoquinolin-5-yl]thieno[3,2-d]pyrimidine-7-carboxamide Chemical compound N=1C=CC2=C(NC(=O)C=3C4=NC=NC(N)=C4SC=3)C(C)=CC=C2C=1NC1=CC=CC(Cl)=C1F KVCQTKNUUQOELD-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/94—Hardware or software architectures specially adapted for image or video understanding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Software Systems (AREA)
- Optics & Photonics (AREA)
- Image Input (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Collating Specific Patterns (AREA)
Abstract
A kind of fingerprint identification module is set in a touch display area.Fingerprint identification module includes a fingerprint sensor, a data input circuit and a multiplexer array.Fingerprint sensor includes multiple fingerprint induction electrodes, these fingerprint induction electrodes are divided into N group, and each group has MxY fingerprint induction electrode.Data input circuit includes every group of M electrode cable of N group and M data line, wherein M electrode cable of each group is independent with Y fingerprint induction electrode electric connection of M row every row in corresponding each group, and in each group M electrode cable respectively with corresponding M data line electrical connection.Multiplexer array includes N number of switching circuit, corresponding with N group electrode cable, wherein one of N number of switching circuit individual reception one connects signal, to connect this group of electrode cable corresponding with this switching circuit.
Description
Technical field
The invention relates to a kind of identification modules, and in particular to a kind of fingerprint identification module and using its finger
Line identifies touch control display.
Background technique
In general, the touch-control display panel and fingerprint identification module of smart phone are all standalone modules and are fabricated separately,
Then it fits together again.It is thus typically necessary to fingerprint is pressed in specific fingerprint identification region is just able to achieve fingerprint recognition,
Such as the Home key of iPhone.In addition, such preposition fingerprint identification module would generally compress on-screen display (osd) area, reduces screen and account for
Than.
, how can be into full frame range since each mobile-phone manufacturers are constantly toward the high screen accounting development of screen
Row fingerprint recognition wants the project solved for industry to improve the globality and screen accounting of display device.
Summary of the invention
The present invention can be shown about a kind of fingerprint identification module and using its fingerprint recognition touch control display in touch-control
Identify fingerprint in region, be not required to that the fingerprint sensor of the fixed position of single-point is additionally arranged, with improve display device globality and
Shield accounting.
According to an aspect of the invention, it is proposed that a kind of fingerprint identification module, is set in a touch display area.Fingerprint is known
Other module includes a fingerprint sensor, a data input circuit and a multiplexer array.Fingerprint sensor includes multiple fingerprints
Induction electrode, these fingerprint induction electrodes are divided into N group, and each group has MxY fingerprint induction electrode.Data input circuit includes
Every group of M electrode cable of N group and M data line, wherein M electrode cable of each group is independent with the every row Y of M row in corresponding each group
A fingerprint induction electrode is electrically connected, and in each group M electrode cable respectively with corresponding M data line electrical connection.It is more
Work device array includes N number of switching circuit, corresponding with N group electrode cable, wherein one of N number of switching circuit individual reception one is connected
Signal, to connect this group of electrode cable corresponding with this switching circuit, wherein N, M, Y are the positive integer greater than 1.
According to an aspect of the invention, it is proposed that a kind of fingerprint recognition touch control display, including a touch-control display panel, a control
Device processed and above-mentioned fingerprint identification module.Touch-control display panel has a touch display area.Controller connection touch-control is shown
Panel.Fingerprint identification module is set in touch display area.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
Fig. 1 shows the schematic diagram of the fingerprint recognition touch control display according to one embodiment of the invention.
Fig. 2 shows the schematic diagrames of the fingerprint identification module according to one embodiment of the invention.
Fig. 3 shows the enlarged diagram of the lower section wiring region of fingerprint identification module in Fig. 2.
Fig. 4, which is shown, is divided into the 6 groups every group schematic diagram for having 180 fingerprint induction electrodes for fingerprint induction electrode.
The pulse that the pulse signal of 6 switching circuits of multiplexer array is shown respectively in Fig. 5 and each data line receives
The schematic diagram of signal.
The pulse letter of 6 switching circuits of the multiplexer array according to two embodiments of the invention is shown respectively in Fig. 6 A and Fig. 6 B
Number schematic diagram.
Wherein, appended drawing reference:
100: fingerprint recognition touch control display
110: touch-control display panel
112: touch display area
116: fingerprint touch position
120: controller
130: fingerprint identification module
131: fingerprint sensor
132: fingerprint induction electrode
133: data input circuit
134: electrode cable
135: data line
136: signal wire
141: multiplexer array
142: switching circuit
Pin_1: the first data line
Pin_2: the second data line
Pin_M: the M data line
MUX1: first switch circuit
MUX2: second switch circuit
MUXN: n-th switching circuit
SP: pulse signal
T_line: column scan time
D: width
N, M, Y: quantity
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
Embodiment set forth below is described in detail, and embodiment as example only to illustrate, not to limit this hair
The bright range to be protected.It is to indicate that identical/similar element explains with identical/similar symbol below.In following embodiment
The direction term being previously mentioned, such as: upper and lower, left and right, front or rear etc. are only the directions with reference to institute's accompanying drawings.Therefore, it uses
Direction term is intended to be illustrative and not intended to limit the present invention.
According to one embodiment of the invention, propose that a kind of can identify on any one position in touch display area refers to
The fingerprint identification module of line, to realize full frame fingerprint recognition.Optical sensor mode can be used in the fingerprint identification module of the present embodiment,
When finger touches any one position (fingerprint positions as shown in Figure 1) on touch-control display panel, by backlight illumination hand
Digital reflex obtains finger print information by the reflectivity difference of line peak line paddy, to learn finger touch position to fingerprint sensor.
When touch-control display panel is in fingerprint recognition mode, controller (such as fingerprint identification controller) can drive fingerprint by subregion
Fingerprint induction electrode in identification module so that fingerprint induction electrode can under fingerprint recognition mode finger sensing fingerprint, and will
Fingerprint inductive signal is transmitted back to controller, for identifying fingerprint.In addition, when touch-control display panel is in touch-control sensing mode,
Fingerprint identification module can be closed, only allows to detect finger touch position, but the function without fingerprint recognition.In an embodiment
In, fingerprint identification module can independently make with touch-control display panel, alternatively, fingerprint identification module can be integrated with touch-control display panel
Change production, is assembled on hand-hold electronic device (full screen smart phone as shown in Figure 1) again later, the present invention is not subject to this
Limitation.
Fig. 1 and Fig. 2 is please referred to, according to one embodiment of the invention, fingerprint recognition touch control display 100 includes that a touch-control is shown
Panel 110, a controller 120 and a fingerprint identification module 130.Touch-control display panel 110 has a touch display area
112, the display screen or screen of e.g. full frame (screen accounting is greater than 80% or 90%) account for smaller (being, for example, less than 80%)
Show screen, the present invention is without restriction to this.Controller 120 connects the touch-control display panel 110, to drive fingerprint recognition
Module 130.Fingerprint identification module 130 is set in touch display area 112, to incude and identify fingerprint.
In one embodiment, touch-control display panel 110 is to detect the fingerprint being located in the touch display area 112 touching
Position 116 is touched, controller 120 can generate connection signal (i.e. pulse signal SP) according to the fingerprint touch position 116 is corresponding, with
Drive fingerprint identification module 130.In addition, controller 120 can drive the fingerprint induced electricity in fingerprint identification module 130 by subregion
Pole 132 so that fingerprint induction electrode 132 in the corresponding area can under fingerprint recognition mode finger sensing fingerprint.Fingerprint recognition
Fingerprint inductive signal can be back to controller 120 by module 130, for identifying fingerprint.
Referring to figure 2. and Fig. 3, in one embodiment, fingerprint identification module 130 includes a fingerprint sensor 131, a data
Input circuit 133 and a multiplexer array 141.Fingerprint sensor 131 includes multiple fingerprint induction electrodes 132, in order to reach
Subregion drives fingerprint sensor 131, and fingerprint induction electrode 132 divides for N group, and each group has MxY fingerprint induction electrode 132.
Please with reference to Fig. 3, fingerprint induction electrode 132 is for example divided into 6 groups (N=6) on fuselage short side direction, every group for example with
180x1920 (M=180, Y=1920) fingerprint induction electrodes 132, but the number of electrodes organized in number and every group does not limit.Relatively
In every group of MxY fingerprint induction electrode 132, data input circuit 133 is equipped with every group of M electrode cable 134 of N group, independence and phase
Y fingerprint induction electrode 132 of M row every row is electrically connected in corresponding each group.In addition, relative to every group of M electrode cable 134 of N group,
Data input circuit 133 is equipped with M data line 135, is electrically connected respectively with M electrode cable 134 in each group.
Therefore, in Fig. 3 and Fig. 4, data input circuit 133 is formed with the NxM electrode cable 134 and M of cross arrangement
A data line 135 is in wiring region 114.The first strip electrode conducting wire 134 and the first data line 135 (Pin_1) in every group are electrically
It connects, the M in Article 2 electrode cable 134 and the electric connection of the second data line 135 (Pin_2) ..., every group in every group
Strip electrode conducting wire 134 and M data line 135 (Pin_M) are electrically connected, and sequential is under touch display area 112
Side.
In addition, multiplexer array 141 includes N number of switching circuit 142 in order to reach subregion driving fingerprint sensor 131, with
N group electrode cable 134 is corresponding.That is, first switch circuit 142 (MUX1) can with first group in M electrode cable 134
Be connected or disconnect, second switch circuit 142 (MUX2) can with second group in M electrode cable 134 be connected or disconnect ...,
N-th switching circuit 142 (MUXN) can be connected or disconnect with M electrode cable 134 in N group.Referring to figure 3. and Fig. 5, exist
Same time, only a switching circuit 142 are connected with corresponding one group of M electrode cable 134, remaining N-1 switch
Circuit 142 is in an off state.Therefore, in Fig. 3, only has 142 individual reception of switching circuit in N number of switching circuit 142
One connects signal (i.e. pulse signal SP), to connect one group of electrode cable 134 corresponding with this switching circuit 142, remaining
N-1 switching circuit 142 is in an off state.
In addition, when a switching circuit 142 in multiplexer array 141 receives one and connects signal, M data line 135
It can be switched on, to receive the fingerprint inductive signal from wherein one group of M electrode cable 134.Referring to figure 5., when second is opened
When powered-down road 142 (MUX2) receives a connection signal, the pulse signal SP of second switching circuit 142 (MUX2) is in high electricity
Position, remaining N-1 switching circuit 142 is in low potential, and the pulse signal SP of M data line 135 is also at high potential, to
Obtain the inductive signal of the fingerprint sensor 131 of optical sensor.Connecting signal is, for example, the electrode indicated to fingerprint sensor 131
The charging signals to charge, and charging signals are corresponding with the charging pulse time.The charging pulse time is smaller than or waits
In a column scan time T_line.Since multiplexer array 141 of the invention will not be passed because having interelement between unlatching/closing
The problem of deferred (delay) late, therefore, the charging time of fingerprint sensor 131 can be significantly increased.In the present embodiment, with screen
Curtain turnover rate is 60Hz to calculate, and frame shows that the time is about 16.67ms, and column scan time T_line is about that 8.68 μ s/ each columns are (total
1920 column), therefore the charging pulse time is up to 8.68 μ s.
Then, Fig. 6 A and Fig. 6 B is please referred to, the charging time of fingerprint sensor 131 is not limited to a column scan time T_
Line, can also less than one column scan time T_line.In fig. 6, second switch circuit 142 (MUX2) is switched on and fills
Electrical pulse time is approximately equal to a column scan time T_line, and in fig. 6b, second switch circuit 142 is switched on and pulse signal
The charging pulse time of SP1 is approximately equal to half column scan time T_line, and later, second switch circuit 142 is disconnected, the
Three switching circuits 142 are switched on and the charging pulse time of pulse signal SP2 is approximately equal to half column scan time T_line.
That is, can be filled to the electrode timesharing of the fingerprint sensor 131 in two subregions in a column scan time T_line
Electricity.In the present embodiment, it is calculated so that screen updates rate is 60Hz, column scan time T_line is about 8.68 μ s/ each columns, therefore
The charging pulse time is up to 4.34 μ s.The above-mentioned charging pulse time is only example, and the present invention is without restriction to this.
Referring to figure 3., in the present embodiment, multiplexer array 141 is divided is 6 groups, therefore can reduce the quantity of multiplexer,
And controller 120 only needs the switching circuit 142 of 6 signal line 136 and 6 group multiplexers to be electrically connected, to reduce signal wire 136
Layout area.In addition, in the present embodiment, controller 120 only needs 180 data lines 135 to receive fingerprint inductive signal,
Therefore the layout area of data line 135 can be reduced.In the present embodiment, when the layout area of signal wire 136 and data line 135 subtracts
When few, the width D (referring to Fig. 1) of the wiring region 114 of 112 lower section of touch display area can be greatly decreased, such as contract from 4000 μm
3000 μm are reduced to, is assembled with reducing size and fingerprint identification module 130 and the touch-control display panel 110 of fingerprint identification module 130
Overall dimensions afterwards.
In addition, fingerprint touch position can directly be judged by touch-control display panel 110 by connecting signal in the present embodiment example
116 provide, or are issued one when there is touch event generation by 120 P-SCAN multiplexer array 141 of controller and connect
A switching circuit 142 of the messenger into multiplexer array 141.
Fingerprint identification module disclosed by the above embodiment of the present invention and application its fingerprint recognition touch control display, can be in
Any one position in touch display area identifies fingerprint, is not required to that the fingerprint sensor of the fixed position of single-point is additionally arranged, because
This, will not be limited and can be improved in appearance the globality of display device, and can reach the market demand of high screen accounting.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (14)
1. a kind of fingerprint identification module is set in a touch display area, which is characterized in that the fingerprint identification module includes:
One fingerprint sensor, including multiple fingerprint induction electrodes, multiple fingerprint induction electrode are divided into N group, and each group has M x
Y fingerprint induction electrode；
One data input circuit, including every group of M electrode cable of N group and M data line, wherein M electrode cable of each group is only
It is vertical with Y fingerprint induction electrode electric connection of M row every row in corresponding each group, and in each group the M electrode cable respectively with
The corresponding M data line electrical connection；And
One multiplexer array, including N number of switching circuit, wherein N number of switching circuit one of corresponding with the N group electrode cable
Individual reception one connects signal, and to connect this group of electrode cable corresponding with the switching circuit, wherein N, M, Y are greater than 1
Positive integer.
2. fingerprint identification module as described in claim 1, which is characterized in that wherein the connection signal is electrode charge letter
Number.
3. fingerprint identification module as claimed in claim 2, which is characterized in that wherein the electrode charge signal is corresponding has one to fill
Electrical pulse time.
4. fingerprint identification module as claimed in claim 3, which is characterized in that wherein the charging pulse time is less than or equal to one
The column scan time.
5. fingerprint identification module as claimed in claim 3, which is characterized in that wherein the charging pulse time is less than or equal to two
/ mono- column scan time.
6. fingerprint identification module as described in claim 1, which is characterized in that further include a controller, referred to receive by this
One fingerprint inductive signal of line sensor identification.
7. fingerprint identification module as claimed in claim 6, which is characterized in that wherein the controller connects a touch-control display surface
Plate, the touch-control display panel is to detect the fingerprint touch position being located in the touch display area, and the controller is according to this
The corresponding connection signal that generates of fingerprint touch position is to the multiplexer array.
8. a kind of fingerprint recognition touch control display characterized by comprising
One touch-control display panel has a touch display area；
One controller connects the touch-control display panel；And
Fingerprint identification module as described in one of claim 1 to 5, is set in the touch display area.
9. fingerprint recognition touch control display as claimed in claim 8, which is characterized in that wherein the touch-control display panel is to examine
Location is in the fingerprint touch position in the touch display area, and according to the corresponding generation of the fingerprint touch position, this connects the controller
Messenger is to the multiplexer array.
10. fingerprint recognition touch control display as claimed in claim 8, which is characterized in that wherein the controller to receive by
One fingerprint inductive signal of fingerprint sensor identification.
11. fingerprint recognition touch control display as claimed in claim 8, which is characterized in that wherein the connection signal is an electrode
Charging signals.
12. fingerprint recognition touch control display as claimed in claim 11, which is characterized in that wherein the electrode charge signal is corresponding
With the charging pulse time.
13. fingerprint recognition touch control display as claimed in claim 12, which is characterized in that wherein the charging pulse time is less than
Or it is equal to the column scan time.
14. fingerprint recognition touch control display as claimed in claim 12, which is characterized in that wherein the charging pulse time is less than
Or it is equal to the half column scan time.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107139201 | 2018-11-05 | ||
| TW107139201A TWI688899B (en) | 2018-11-05 | 2018-11-05 | Fingerprint identification module and fingerprint identification touch display using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110119729A true CN110119729A (en) | 2019-08-13 |
| CN110119729B CN110119729B (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910443473.1A Active CN110119729B (en) | 2018-11-05 | 2019-05-24 | Fingerprint identification module and fingerprint identification touch display applying same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110119729B (en) |
| TW (1) | TWI688899B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531898A (en) * | 2019-09-20 | 2019-12-03 | 深圳芯启航科技有限公司 | A kind of capacitive induction unit control method, system and device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI720682B (en) | 2019-11-08 | 2021-03-01 | 友達光電股份有限公司 | Pixel array substrate |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110119729B (en) | 2022-02-11 |
| TWI688899B (en) | 2020-03-21 |
| TW202018581A (en) | 2020-05-16 |
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