CN106970731A - Capacitance sensing apparatus, fingerprint acquisition apparatus and capacitance sensing apparatus manufacture method - Google Patents
Capacitance sensing apparatus, fingerprint acquisition apparatus and capacitance sensing apparatus manufacture method Download PDFInfo
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- CN106970731A CN106970731A CN201610020479.4A CN201610020479A CN106970731A CN 106970731 A CN106970731 A CN 106970731A CN 201610020479 A CN201610020479 A CN 201610020479A CN 106970731 A CN106970731 A CN 106970731A
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- conductive structure
- electrode group
- sensing electrode
- touch
- fingerprint
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Classifications
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- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Abstract
The present invention discloses a kind of capacitance sensing apparatus, fingerprint acquisition apparatus and capacitance sensing apparatus manufacture method.The capacitance sensing apparatus, it is included：Substrate；Touch-control sensing electrode group, is arranged at the surface of the substrate；Fingerprint sensing electrode group, is arranged at the surface of the substrate；And capacitance sensing integrated circuit, electrical connection and the touch-control sensing electrode group and fingerprint sensing electrode group, a touch command is produced to sense the capacitance variations of the touch-control sensing electrode group, and a fingerprint pattern is produced to sense the capacitance variations of the fingerprint sensing electrode group.
Description
Technical field
The present invention relates to a kind of capacitance sensing apparatus, more particularly, to applying in portable electronic devices or flat
Capacitance sensing apparatus on the display of face.
Background technology
On portable electronic devices or flat-panel screens instruction is controlled using touch control gesture
Input, has been the application for being widely accepted and quite popularizing.However, entering enforcement using identification of fingerprint
The certification of user's identity, then be in recent years portable electronic devices gradually received and extensive utilization solution
Certainly scheme.But, in technological means now, two kinds of demands are required for using an other sensing unit
Completed with corresponding control circuit.Therefore, the sensing dress of two kinds of demands can be met by how developing
Put and design, be a main purpose of this case institute research and development.
The content of the invention
Embodiments of the invention provide a kind of capacitance sensing apparatus, and it is included：Substrate；Touch-control sensing electrode
Group, is arranged at the surface of the substrate；One fingerprint sensing electrode group, is arranged on the surface of the substrate
Side；And a capacitance sensing integrated circuit, with the touch-control sensing electrode group and the fingerprint sensing electrode group
Electrical connection, produces a touch command, Yi Jiyong to sense the capacitance variations of the touch-control sensing electrode group
A fingerprint pattern is produced to sense the capacitance variations of the fingerprint sensing electrode group.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, the substrate is a transparency carrier, and this is transparent
There is a touch-control sensing distribution of electrodes region, the touch-control sensing electrode group is distributed in the touch-control sensing on substrate
In distribution of electrodes region, the touch-control sensing electrode group includes an insulating barrier and two layers of conductive structure.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, the substrate has a fingerprint sensing electrode point
Cloth region, the fingerprint sensing electrode group is distributed in the fingerprint sensing distribution of electrodes region.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, the touch-control sensing electrode group and/or the fingerprint
Sensing electrode group, which comprises at least, three-decker, and wherein intermediate structure is insulating barrier, and two layers item point up and down
Wei not conductive structure.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, the conductive structure is all complete by wire netting compartment
Into, or all completed by transparent electrode layer.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, two layers of the conductive structure is respectively by a gold medal
Belong to clathrum with a transparent electrode layer to complete.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, the distribution of electrodes of the fingerprint sensing electrode group
Density is more than the distribution of electrodes density of the touch-control sensing electrode group, and the fingerprint sensing electrode group and the touch-control
The location overlap of sensing electrode group.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, the substrate has a groove, refers to positioned at this
A becket is formed on the top of line sensing electrode group position, the side wall of the groove, the becket is with being somebody's turn to do
Capacitance sensing integrated circuit is electrically connected, and then is provided a fixed voltage.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, the touch-control sensing electrode group, the fingerprint sense
Survey electrode group and the capacitance sensing integrated circuit is all arranged on the same surface of the substrate or same table
The top in face.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, the fingerprint sensing electrode group is included：First
Conductive structure, is arranged above the substrate surface, includes a plurality of parallel wire；Second conductive structure,
It is arranged above substrate surface；Insulating barrier, be arranged at first conductive structure and second conductive structure it
Between；And an at least suspension joint conductive structure, material identical with second conductive structure but it is not electrically connected with mutually
Touch, and be arranged at the surface of insulating layer with the second conductive structure the same side and be located at the grade parallel wire
Spacing above.
According to above-mentioned conception, a metal grill line segment is also included in the capacitance sensing apparatus of this case, is arranged at
It is on the surface of first conductive structure and in electrical contact with it.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, the fingerprint sensing electrode group is included：First
Conductive structure, is arranged above the substrate surface, includes a plurality of parallel wire；Second conductive structure,
It is arranged above substrate surface；Insulating barrier, be arranged at first conductive structure and second conductive structure it
Between；And an at least additional conductive structure, material identical with second conductive structure and mutually it is in electrical contact,
And be arranged at the surface of insulating layer with the second conductive structure the same side and be located at the grade parallel wire
Above spacing.
According to above-mentioned conception, in the capacitance sensing apparatus of this case, also comprising a metal grill line segment, set
In on the surface of first conductive structure and in electrical contact with it.
Another aspect of the invention is a kind of capacitance sensing apparatus, and it is included：Substrate；First conductive structure,
It is arranged above the substrate surface, wherein including a plurality of parallel wire；Second conductive structure, is arranged at
Above substrate surface；Insulating barrier, is arranged between first conductive structure and second conductive structure；With
And an additional conductive structure, it is mutually in electrical contact with second conductive structure, and be arranged at this second
The surface of insulating layer of conductive structure the same side is simultaneously located above the spacing of the grade parallel wire.
The another further aspect of this case is a kind of capacitance sensing apparatus, and it is included：Substrate；First conductive structure,
It is arranged above the substrate surface, includes a plurality of parallel wire；Second conductive structure, is arranged at substrate
Surface；Insulating barrier, is arranged between first conductive structure and second conductive structure；And one
Additional conductive structure, it is mutually in electrical contact with second conductive structure, and be arranged at and the second conductive knot
The surface of insulating layer of structure the same side is simultaneously located above the spacing of the grade parallel wire.
The another further aspect of this case is a kind of capacitance sensing apparatus manufacture method, and it is comprised the steps of：There is provided
One substrate；Using same manufacture craft in the substrate surface complete a touch-control sensing electrode group and
One fingerprint sensing electrode group；And provide a capacitance sensing integrated circuit, with the touch-control sensing electrode group with
And fingerprint sensing electrode group electrical connection, produced to sense the capacitance variations of the touch-control sensing electrode group
One touch command, and produce a fingerprint image to sense the capacitance variations of the fingerprint sensing electrode group
Case.
Brief description of the drawings
Fig. 1 a illustrate for the function block of touch control capacitance sensing device further of the present invention with finger print identification function
Figure；
Fig. 1 b illustrate for the structural profile of touch control capacitance sensing device further of the present invention with finger print identification function
Figure；
Fig. 2 a are the portion in touch-control sensing distribution of electrodes region of the present invention and fingerprint sensing distribution of electrodes region
Divide profile construction schematic diagram；
Fig. 2 b are the portion in touch-control sensing distribution of electrodes region of the present invention and fingerprint sensing distribution of electrodes region
Divide profile construction schematic diagram；
Fig. 2 c are the portion in touch-control sensing distribution of electrodes region of the present invention and fingerprint sensing distribution of electrodes region
Divide profile construction schematic diagram；
Fig. 3 a have the function of another embodiment of the touch sensing device of finger print identification function for the present invention
Block schematic diagram；
Fig. 3 b have the function of the another embodiment of the touch sensing device of finger print identification function for the present invention
Block schematic diagram；
Fig. 4 a are the electrode pattern schematic diagram of fingerprint sensing electrode group of the present invention；
Fig. 4 b are the electrode pattern schematic diagram of fingerprint sensing electrode group of the present invention；
Fig. 4 c are the electrode pattern schematic diagram of fingerprint sensing electrode group of the present invention；
Fig. 4 d are the electrode pattern schematic diagram of fingerprint sensing electrode group of the present invention；
Fig. 4 e are the electrode pattern schematic diagram of fingerprint sensing electrode group of the present invention.
Symbol description
Substrate 10
Touch-control sensing distribution of electrodes region 11
Fingerprint sensing distribution of electrodes region 12
Capacitance sensing integrated circuit 13
Touch-control sensing electrode group 310
Fingerprint sensing electrode group 320
Specific region 100
Becket 101,301
Guide hole construction 102
First wire netting compartment 21
Insulating barrier 22
Second wire netting compartment 23
Second transparency electrode layer 24
First transparency electrode layer 25
Fingerprint sensing distribution of electrodes region 32
Touch-control sensing distribution of electrodes region 31
First conductive structure 41
Second conductive structure 42
Additional conductive structure 43
First conductive structure 51,61
Second conductive structure 52,62
Additional conductive structure 53
Metal grill line segment 44
Metal grill line segment 54,63,64
Embodiment
Fig. 1 a are referred to, it has the function of the capacitance touching control sensing device further of finger print identification function for the present invention
Block schematic diagram.There is a touch-control sensing distribution of electrodes region 11 and fingerprint sensing electricity on substrate 10
Pole distributed areas 12, wherein, the sensing of touch position and refer on touch-control sensing distribution of electrodes region 11
The sensing of fingerprint pattern utilizes capacitive sensing technology on line sensing electrode distributed areas 12.Therefore, originally
Case can calculate touching on touch-control sensing distribution of electrodes region 11 using same capacitance sensing integrated circuit 13
The fingerprint pattern touched on position and construction fingerprint sensing distribution of electrodes region 12, that is, using same
IC chip reaches the sensing of touch position and fingerprint pattern.In one embodiment, capacitance sensing
The electric capacity for the touch-control sensing electrode group that the sensing touch-control sensing distribution of electrodes of integrated circuit 13 region 11 is included becomes
Change and produce a touch command, and the fingerprint sensing that sensing fingerprint sensing distribution of electrodes region 12 is included
The capacitance variations of electrode group and produce a fingerprint pattern.Further, since the sensing and fingerprint image of touch position
Resolution ratio required for the sensing of case is different, the touch-control sensing that touch-control sensing distribution of electrodes region 11 is included
The fingerprint sensing electrode group that the distribution density of electrode group 310 is included with fingerprint sensing distribution of electrodes region 12
320 distribution density also differs widely, and the distribution of electrodes density of fingerprint sensing electrode group 320 is obviously more than
Distribution of electrodes density in touch-control sensing electrode group 310.In one embodiment, when the present invention is applied to put down
Face display or any electronic installation with flat-panel screens, substrate 10 are transparency carrier, example
Such as common glass or acryl.Touch-control sensing distribution of electrodes region 11 is located at the aobvious of flat-panel screens
Show on region, fingerprint sensing distribution of electrodes region 12 is then located at outside viewing area, overstocked to avoid
Circuit trace influences the visibility of viewing area.
Fig. 1 b are referred to again, and it is the structure of the above-mentioned touch control capacitance sensing device further with finger print identification function
Diagrammatic cross-section.There is a specific region 100, the specific region 100 is located at fingerprint sensing on substrate 10
The top in distribution of electrodes region 12, the finger to point out user is inserted and is easily accomplished positioning.Should
Specific region 100 can be comprising pre-defined a region or a groove etc., and the pre-defined region can
To be a rough surface or have surface for being printed as different colours etc., the present embodiment is carried out by taking groove as an example
Explanation.The thickness of substrate 10 is about 0.3mm, and bottom portion of groove thickness then tapers to about 0.2mm.Finger
With the distance in fingerprint sensing distribution of electrodes region 12 compared with substrate 10 thickness closer to so that sense and obtain
Fingermark image become apparent from and increase discrimination power.The present invention simultaneously can be in one metal of formation on the side wall of groove
Ring 101, the becket 101 (Via) 102 or coiling are constructed by guide hole and with the electric capacity sense of opposite side
Survey integrated circuit 13 and complete electrical connection.Capacitance sensing integrated circuit 13 provides a fixed voltage to the metal
Ring 101, to reduce issuable noise during fingerprint sensing.As illustrated, touch-control sensing electrode point
Cloth region 11, capacitance sensing integrated circuit 13 and fingerprint sensing distribution of electrodes region 12 are located at substrate 10
The same side.It is of course also possible to which capacitance sensing integrated circuit 13 is located at by the difference in response to product design
The side of substrate 10, and by touch-control sensing distribution of electrodes region 11 and fingerprint sensing distribution of electrodes region 12
Located at the opposite side of substrate 10, it is not limited.
Fig. 2 a- Fig. 2 c are according to different embodiments of the invention touch-control sensing distribution of electrodes region 11 and referred to
The cut-away section organigram of line sensing electrode distributed areas 12.In Fig. 2 a, on substrate 10 sequentially
Three-decker is stacked, is the first metal grill (Metal Mesh) layer 21, insulating barrier 22 and second respectively
Metal grill (Metal Mesh) layer 23, wherein metal grill (Metal Mesh) are to utilize silver paste material mostly
Carry out what wire mark manufacture craft was completed.
Refer to again and sequentially stack three-decker on Fig. 2 b, substrate 10, be the first metal grill respectively
(Metal Mesh) layer 21, insulating barrier 22 and second transparency electrode layer 24.
Refer to again and sequentially stack three-decker on Fig. 2 c, substrate 10, be first transparency electrode layer respectively
25th, insulating barrier 22 and second transparency electrode layer 24.As shown in Figure 1 b, due to touch-control sensing electrode point
Cloth region 11 and fingerprint sensing distribution of electrodes region 12 are located at the same side of substrate 10, by appropriate
Design photomask and cause up and down the two of touch-control sensing electrode group 310 and fingerprint sensing electrode group 320
Layer conductive structure and the insulating barrier of centre have roughly the same thickness, touch-control sensing distribution of electrodes region
11 and fingerprint sensing distribution of electrodes region 12 can be formed simultaneously such as Fig. 2 a- Fig. 2 c three-decker heap
It is folded, therefore this case can complete touch-control sensing distribution of electrodes region 11 in the lump in same manufacturing process
Middle touch-control sensing electrode group 310 and the fingerprint sensing electrode group in fingerprint sensing distribution of electrodes region 12
320.Touch-control sensing electrode must be formed respectively with different manufacture crafts compared to prior art and is referred to
Line sensing electrode, the present invention has saving manufacturing process steps and reaching reduces the effect of cost.Citing and
Speech, by whole face coating metal on the substrate 10, reuse gold-tinted lithographic fabrication process wash away it is unnecessary into
Point, you can while forming touch-control sensing electrode group 310 and fingerprint in touch-control sensing distribution of electrodes region 11
Fingerprint sensing electrode group 320 in sensing electrode distributed areas 12.Fig. 2 a~Fig. 2 c three-decker with
The corresponding relation of the electrode pattern of fingerprint sensing electrode group is specified in fingerprint sensing distribution of electrodes region 12
Fig. 4 a~Fig. 4 e.
Fig. 3 a are referred to again, and it has another reality of the touch sensing device of finger print identification function for the present invention
The function block schematic diagram of example is applied, itself and Fig. 1 a difference are the fingerprint sensing distribution of electrodes area of this example
Domain 32 be overlapped in among touch-control sensing distribution of electrodes region 31, without taking extra cloth in addition
Line region, as long as the wiring density after fingerprint sensing electrode group 320 is overlapping with touch-control sensing electrode group 310
The visibility of viewing area will not be influenceed.And be equally to use same capacitance sensing integrated circuit 13
To complete the sensing and fingerprint sensing distribution of electrodes of touch position on touch-control sensing distribution of electrodes region 31
The sensing of fingerprint pattern on region 32.It so more can reach and save manufacturing process steps and reaching reduces into
This purpose.Fingerprint sensing electrode group 320 herein is with touch-control sensing electrode group 310 except being to set respectively
Put outer, can also be used several fingerprint sensing electrodes as a touch-control sensing electrode, consequently, it is possible to
Also may be used in change by way of the sensing of capacitance sensing integrated circuit 13, fingerprint sensing distribution of electrodes region 32
Carry out touch-control sensing.
Furthermore it is possible to which referring back to Fig. 3 b, it has the touch sensing device of finger print identification function for the present invention
Another embodiment function block schematic diagram, itself and Fig. 3 a difference is to be provided with a becket 301
Be centered around the edges of regions in fingerprint sensing distribution of electrodes region 32, the becket 301 by coiling with
Capacitance sensing integrated circuit 13 completes electrical connection.Capacitance sensing integrated circuit 13 provides a fixed voltage extremely
The becket 301, to reduce issuable noise during fingerprint sensing.
Fig. 4 a~Fig. 4 e are the electrode pattern schematic diagram of the fingerprint sensing electrode group of different embodiments of the invention,
For the sake of clarity, substrate 10 is not shown with insulating barrier 22, only describes three-layered node in above-mentioned Fig. 2 a~Fig. 2 c
To complete the bilevel conductive structure of induction electrode in structure.Fig. 4 a are referred to, from the table of substrate 10
The first conductive structure 41 of face farther out is transparency electrode (equivalent to the second transparency electrode in Fig. 2 b~Fig. 2 c
24), it is a plurality of parallel wire of larger line width to layer.Even it is on the surface relatively near from the surface of substrate 10
The second conductive structure 42 then for metal grill (equivalent to the first metal grill in Fig. 2 a~Fig. 2 b
(Metal Mesh) layer 21) because the resistance of metallic mesh material is relatively low, display can not be influenceed meeting
The line width of the second conductive structure 42 is reduced to a certain degree under the demand of middle viewing area.But for that can strengthen
The ability of capacitance sensing, this example is while the second conductive structure of wire mark 42, also in the first conductive structure
The additional conductive structure 43 using metal grill as material is formed above 41 adjacent intervals, that is to say, that
Second conductive structure 42 is located substantially at same plane with additional conductive structure 43, can be with same manufacture craft
Formed.The conductive structure 42 of additional conductive structure 43 and second and the first conductive structure 41 are all not attached to
Connect and floating is presented, still, additional conductive structure 43 can additionally increase user's finger and
The capacitive coupling path of one conductive structure 41 and the second conductive structure 42, reaches and strengthens capacitive sensing
Effect.
Fig. 4 b are referred to again.It is with Fig. 4 a identicals, from the first conductive structure of the surface of substrate 10 farther out
51 be transparency electrode (equivalent to the second transparency electrode layer 24 in Fig. 2 b~Fig. 2 c), and it is larger line width
A plurality of parallel wire.Even from the surface of substrate 10 relatively it is near be the second conductive structure 52 on the surface then
For metal grill (equivalent to the first metal grill (Metal Mesh) layer 21 in Fig. 2 a~Fig. 2 b).To add
The ability of strong capacitive sensing, while the second conductive structure of wire mark 52, also in the first conductive structure 51
The additional conductive structure 53 using metal grill as material is formed above adjacent interval, that is to say, that the
Two conductive structures 52 are located substantially at same plane with additional conductive structure 53, can be with same manufacture craft shape
Into.From unlike Fig. 4 a, additional conductive structure 53 and the second conductive structure 52 complete to electrically connect,
But it is not connected with the first conductive structure 51, mainly increases the second conductive structure 52 and the first conductive knot
Adjacent lengths between structure 51, to strengthen between the first conductive structure 41 and the second conductive structure 42
Capacitive coupling effect, and then reach the effect for strengthening capacitive sensing.
Fig. 4 c are referred to again, and based on it is the electrode pattern according to Fig. 4 a, unique difference is in saturating
After the first conductive structure 41 formation of prescribed electrode material, prior to being printed on the surface of the first conductive structure 41
Metal grill line segment 44, the overall resistance to reduce the first conductive structure 41.Other parts and figure
4a is identical, therefore will not be described here.
Fig. 4 d are referred to again, and based on it is the electrode pattern according to Fig. 4 b, unique difference is in saturating
After the first conductive structure 51 formation of prescribed electrode material, prior to being printed on the surface of the first conductive structure 51
Metal grill line segment 54, the overall resistance to reduce the first conductive structure 51.Other parts and figure
4a is identical, and also it will not go into details herein.
Above-mentioned Fig. 4 a~Fig. 4 d are to increase the electrode of additional conductive structure on the basis of Fig. 2 b stacked structures
Pattern, but the invention is not restricted to this, auxiliary conductor structure can be also applied to Fig. 2 a and Fig. 2 c's
Stacked structure.For example, Fig. 4 e are the electrode pattern that developed according to Fig. 2 c stacked structures, its
In the first conductive structure 61 and the second conductive structure 62 be transparency electrode material, in the first conductive structure 61
With distinguishing type metal grid line segment 63,64 on the surface of the second conductive structure 62, to reduce by first
The overall resistance of the conductive structure 62 of conductive structure 61 and second, can be for improvement conventional double ITO
The not good shortcoming of electric conductivity.
Summary, the technological means that various embodiments of the present invention are provided can utilize same electric capacity sense
Survey integrated circuit to complete touch-control sensing and two kinds of demands of fingerprint sensing, and then reach the research and development of this case institute
Main purpose.In addition, this case as person familiar with the technology appoint apply craftsman think and be it is all as modify, so
And do not take off as attached claim is intended to Protector.
Claims (18)
1. a kind of capacitance sensing apparatus, it is included：
Substrate；
Touch-control sensing electrode group, is arranged at the surface of the substrate；
Fingerprint sensing electrode group, is arranged at the surface of the substrate；And
Capacitance sensing integrated circuit, is electrically connected with the touch-control sensing electrode group and the fingerprint sensing electrode group
Connect, a touch command is produced to sense the capacitance variations of the touch-control sensing electrode group, and to feel
Survey the capacitance variations of the fingerprint sensing electrode group and produce a fingerprint pattern.
2. capacitance sensing apparatus as claimed in claim 1, the wherein substrate are a transparency carrier, this is saturating
There is a touch-control sensing distribution of electrodes region, the touch-control sensing electrode group is distributed in the touch-control sense on bright substrate
Survey in distribution of electrodes region, the touch-control sensing electrode group includes an insulating barrier and two layers of conductive structure.
3. capacitance sensing apparatus as claimed in claim 1, the wherein substrate have a fingerprint sensing electrode
Distributed areas, the fingerprint sensing electrode group is distributed in the fingerprint sensing distribution of electrodes region.
4. capacitance sensing apparatus as claimed in claim 1, wherein the fingerprint sensing electrode group are exhausted comprising one
Edge layer, and two layers of conductive structure.
5. capacitance sensing apparatus as claimed in claim 4, wherein two layers of conductive structure are all wire netting
Compartment, or all it is transparent electrode layer.
6. capacitance sensing apparatus as claimed in claim 4, wherein two layers of conductive structure are respectively a gold medal
Belong to clathrum and a transparent electrode layer.
7. capacitance sensing apparatus as claimed in claim 1, the wherein electrode of the fingerprint sensing electrode group point
Cloth density is more than the distribution of electrodes density of the touch-control sensing electrode group, and the fingerprint sensing electrode group is touched with this
Control the location overlap of sensing electrode group.
8. capacitance sensing apparatus as claimed in claim 1, the wherein substrate have groove, refer to positioned at this
A becket is formed on the top of line sensing electrode group position, the side wall of the groove, the becket is with being somebody's turn to do
Capacitance sensing integrated circuit is electrically connected, and then is provided a fixed voltage.
9. capacitance sensing apparatus as claimed in claim 1, wherein the touch-control sensing electrode group, the fingerprint
Sensing electrode group and the capacitance sensing integrated circuit are all arranged at the top on the same surface of the substrate.
10. capacitance sensing apparatus as claimed in claim 1, wherein the fingerprint sensing electrode group are included：
First conductive structure, is arranged above the substrate surface, includes a plurality of parallel wire；
Second conductive structure, is arranged above substrate surface；
Insulating barrier, is arranged between first conductive structure and second conductive structure；And
Additional conductive structure, is arranged at and the surface of insulating layer of the second conductive structure the same side and should
Above interval Deng parallel wire.
11. capacitance sensing apparatus as claimed in claim 10, wherein a metal grill line segment is also included,
It is arranged on the surface of first conductive structure and in electrical contact with it.
12. this of capacitance sensing apparatus as claimed in claim 10, wherein the fingerprint sensing electrode group are auxiliary
It is identical material and mutually in electrical contact with second conductive structure to help conductive structure.
13. this of capacitance sensing apparatus as claimed in claim 10, wherein the fingerprint sensing electrode group are auxiliary
It is identical material but mutually not in electrical contact with second conductive structure to help conductive structure.
14. a kind of fingerprint acquisition apparatus, it is included：
Substrate；
First conductive structure, is arranged above the substrate surface, wherein including a plurality of parallel wire；
Second conductive structure, is arranged above substrate surface；
Insulating barrier, is arranged between first conductive structure and second conductive structure；And
Additional conductive structure, is arranged at and the surface of insulating layer of the second conductive structure the same side and should
Above interval Deng parallel wire.
15. fingerprint acquisition apparatus as claimed in claim 14, wherein a metal grill line segment is also included,
It is arranged on the surface of first conductive structure and in electrical contact with it.
16. fingerprint acquisition apparatus as claimed in claim 14, wherein the additional conductive structure with this second
Conductive structure is same material and mutually in electrical contact.
17. fingerprint acquisition apparatus as claimed in claim 14, wherein the additional conductive structure with this second
Conductive structure is same material but mutually not in electrical contact.
18. a kind of capacitance sensing apparatus manufacture method, it is comprised the steps of：
One substrate is provided；
Using same manufacture craft a touch-control sensing electrode group and one is completed in the surface of the substrate
Fingerprint sensing electrode group；And
A capacitance sensing integrated circuit is provided, with the touch-control sensing electrode group and the fingerprint sensing electrode group
Electrical connection, produces a touch command, Yi Jiyong to sense the capacitance variations of the touch-control sensing electrode group
A fingerprint pattern is produced to sense the capacitance variations of the fingerprint sensing electrode group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020479.4A CN106970731A (en) | 2016-01-13 | 2016-01-13 | Capacitance sensing apparatus, fingerprint acquisition apparatus and capacitance sensing apparatus manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020479.4A CN106970731A (en) | 2016-01-13 | 2016-01-13 | Capacitance sensing apparatus, fingerprint acquisition apparatus and capacitance sensing apparatus manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106970731A true CN106970731A (en) | 2017-07-21 |
Family
ID=59334345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610020479.4A Pending CN106970731A (en) | 2016-01-13 | 2016-01-13 | Capacitance sensing apparatus, fingerprint acquisition apparatus and capacitance sensing apparatus manufacture method |
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| CN (1) | CN106970731A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111625119A (en) * | 2020-05-06 | 2020-09-04 | 武汉华星光电半导体显示技术有限公司 | Touch screen and display device |
| WO2023241310A1 (en) * | 2022-06-17 | 2023-12-21 | 京东方科技集团股份有限公司 | Touch layer, touch display device, and manufacturing method for touch layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079718A (en) * | 2014-06-18 | 2014-10-01 | 京东方科技集团股份有限公司 | Personal mobile terminal device with fingerprint recognition function |
| CN204595805U (en) * | 2015-04-09 | 2015-08-26 | 江西合力泰科技有限公司 | A kind of contact panel with fingerprint identification function |
| CN204719728U (en) * | 2015-06-10 | 2015-10-21 | 宸鸿科技(厦门)有限公司 | The contactor control device of tool finger print identification function |
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2016
- 2016-01-13 CN CN201610020479.4A patent/CN106970731A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079718A (en) * | 2014-06-18 | 2014-10-01 | 京东方科技集团股份有限公司 | Personal mobile terminal device with fingerprint recognition function |
| CN204595805U (en) * | 2015-04-09 | 2015-08-26 | 江西合力泰科技有限公司 | A kind of contact panel with fingerprint identification function |
| CN204719728U (en) * | 2015-06-10 | 2015-10-21 | 宸鸿科技(厦门)有限公司 | The contactor control device of tool finger print identification function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111625119A (en) * | 2020-05-06 | 2020-09-04 | 武汉华星光电半导体显示技术有限公司 | Touch screen and display device |
| WO2023241310A1 (en) * | 2022-06-17 | 2023-12-21 | 京东方科技集团股份有限公司 | Touch layer, touch display device, and manufacturing method for touch layer |
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