CN106371681B - sensing circuit and sensing method - Google Patents
sensing circuit and sensing method Download PDFInfo
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- CN106371681B CN106371681B CN201610786150.9A CN201610786150A CN106371681B CN 106371681 B CN106371681 B CN 106371681B CN 201610786150 A CN201610786150 A CN 201610786150A CN 106371681 B CN106371681 B CN 106371681B
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- 238000000034 method Methods 0.000 title claims description 27
- 230000001939 inductive effect Effects 0.000 claims description 60
- 230000005540 biological transmission Effects 0.000 claims description 37
- 230000006698 induction Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 11
- 230000001960 triggered effect Effects 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 description 13
- 238000001514 detection method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 11
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a sensing circuit, and the sensing circuit comprises a first electrode, a second electrode, a third electrode and a fourth electrode. The first electrode is used for receiving a sensing signal and is arranged according to a first row direction and a first column direction. The second electrode is used for receiving a sensing signal or triggering the first electrode so that the first electrode receives the sensing signal, and the second electrode is arranged according to a first row direction and a second row direction. The third electrode is used for receiving the sensing signal and is arranged according to a second row direction and a second row direction. The fourth electrode is used for receiving the sensing signal or triggering the third electrode so that the third electrode receives the sensing signal, and the fourth electrode is arranged according to the second row direction and the first row direction.
Description
Technical field
The present invention is about a kind of data processing circuit and data processing method, especially with regard to a kind of sensing circuit and sensing
Method.
Background technique
With the fast development of touch-control sensing technology, touch-control sensing technology be widely used in electronic device using as
Touch-control input interface.It for example, by the direct contact (e.g., finger) of human body, or is by input tool (e.g., touch-control
Pen) mediate contact with via touch-control input interface and send instructions to electronic device.In order to ensure above-mentioned touch-control input interface
Normal operation, the resolution of the sensing circuit in touch-control input interface must be maintained on certain level.However, to dimension
The resolution of sensing circuit is held, the area of the sensing electrode in sensing circuit will be restricted, to be difficult to reduce sensing electricity
The area on road.For example, when the area of sensing electrode reduces, sensing circuit will via the capacitance that touch-control is sensed
Reduce therewith, whether so as to cause being difficult to judge the generation of touch-control.
Therefore, how effectively to maintain touch-control sensing resolution and reduce the area of sensing circuit to carry out sensing circuit
Design, but a major challenge.
Summary of the invention
The aspect that the present invention discloses be about a kind of sensing circuit, and this sensing circuit include first electrode, second electricity
Pole, third electrode and the 4th electrode.First electrode is to receive inductive signal, and first electrode is according to the first line direction and the
One column direction and be arranged, and be connected by the first odd number horizontal scanning line.Second electrode is to receive inductive signal or triggering the
One electrode is so that first electrode receives inductive signal, and second electrode is arranged according to the first line direction and the second column direction, and
It is connected by the second odd number horizontal scanning line.Third electrode is to receive inductive signal, and third electrode is according to the second line direction
It is arranged with the second column direction, and is connected by the first even number horizontal scanning line.4th electrode is to receive inductive signal or touching
Third electrode is sent out so that third electrode receives inductive signal, and the 4th electrode is set according to the second line direction and the first column direction
It sets, and is connected by the second even number horizontal scanning line.
Another aspect that the present invention discloses is about a kind of method for sensing applied to above-mentioned sensing circuit, and this sensing side
Method is comprised the steps of: in the period 1 through the first odd number horizontal scanning line and the second odd number horizontal scanning line to scan first electrode
With second electrode；And pass through the first even number horizontal scanning line and the second even number horizontal scanning line in second round to scan third electrode
With the 4th electrode.
In conclusion technical solution of the present invention has clear advantage and beneficial effect compared with prior art.By
Above-mentioned technical proposal can reach comparable technological progress, and with the extensive utility value in industry, disclosed sense
Slowdown monitoring circuit and method for sensing are by combining self-tolerant detection technology and mutual capacitance type detection technology to carry out touch-control sensing, in this way, can
The advantages of to have both self-tolerant detection technology and mutual capacitance type detection technology simultaneously, (e.g., mutual capacitance type detection technology had stronger side
Edge induction amount, and self-tolerant detection technology has stronger vertical plane induction amount), to effectively maintain touch-control sensing parsing
It spends and reduces sensing circuit area.In addition, when carrying out mutual capacitance type sensing, due to disclosed sensing circuit and sensing
Method senses different electrodes by meandering manner to receive inductive signal, therefore, disclosed sensing circuit with
Method for sensing is in the electrode for only needing driving half in the same time, to significantly reduce power consumption.
Detailed description of the invention
The circuit diagram for the sensing circuit that Figure 1A is drawn for revealed embodiment according to the present invention；
Clock signal schematic diagram of the sensing circuit that Figure 1B is drawn for revealed embodiment according to the present invention when running；
The running schematic diagram for the sensing circuit that Fig. 2A, 2C, 2E, 2G are drawn for revealed embodiment according to the present invention；
Clock pulse letter of the sensing circuit that Fig. 2 B, 2D, 2F, 2H are drawn for revealed embodiment according to the present invention when running
Number schematic diagram；
The running schematic diagram for the sensing circuit that Fig. 3 A, 3C, 3E, 3G are drawn for revealed embodiment according to the present invention；
Clock pulse letter of the sensing circuit that Fig. 3 B, 3D, 3F, 3H are drawn for revealed embodiment according to the present invention when running
Number schematic diagram；And
The flow chart for the method for sensing that Fig. 4 is drawn for revealed embodiment according to the present invention.
Wherein, appended drawing reference:
100 sensing circuits
102 scanning driving devices
110 first line directions
111 first column directions
112 first electrodes
114 second electrodes
120 second line directions
121 second column directions
122 third electrodes
124 the 4th electrodes
400 method for sensing
S401~S406 step
D [0], D [1], D [2] transmission line
Gr1, Gt1, Gr3, Gt3 odd number horizontal scanning line
Gr2, Gt2 even number horizontal scanning line
S [0], S [1], S [2] receive line
Specific embodiment
It is hereafter to elaborate for embodiment cooperation institute's accompanying drawings, aspect to better understand the invention, but mentioned
The embodiment of confession is not intended to limit the invention covered range, and the description of structure operation is non-to limit the suitable of its execution
Sequence, any structure reconfigured by element is produced to have equal and other effects device, is all the range that the present invention is covered.
In addition, schema is only mapped for the purpose of aiding in illustrating, and not according to full size, practical according to the standard and practice of industry
The size of upper various features can be increased or decreased arbitrarily in order to illustrate.Similar elements will be with identical symbol in following the description
Mark is illustrated in order to understanding.
The word (terms) used in full piece specification and claim usually has in addition to having and especially indicating
Each word using in the content disclosed in this area, herein with the usual meaning in special content.It is certain to describe this
Invent disclose word by it is lower or this specification other places discuss, taken off with providing those skilled in the art in the related present invention
Additional guidance in the description shown.
In addition, word "comprising" as used in the present invention, " comprising ", " having ", " containing " etc., are opening
Term, that is, mean " including but not limited to ".
In the present invention, when an element referred to as " connects " or when " coupling ", it can refer to " to be electrically connected " or " electric property coupling ".
" connection " or " coupling " also can be used to indicate to be collocated with each other operation or interaction between two or multiple element.Although in addition, in the present invention
Use " first ", " second " ... wait terms to describe different elements, which is only to describe to distinguish with same technique term
Element or operation.Indicated unless context understands, otherwise the term not especially censures or implies order or cis-position, also it is non-to
Limit the present invention.
The circuit diagram for the sensing circuit 100 that Figure 1A is drawn for revealed embodiment according to the present invention, and Figure 1B is
Clock signal schematic diagram of the sensing circuit that revealed embodiment is drawn according to the present invention when running.As shown in Figure 1A, feel
Slowdown monitoring circuit 100 includes first electrode 112, second electrode 114, third electrode 122 and the 4th electrode 124.First electrode 112 according to
It is arranged according to the first line direction 110 and the first column direction 111, and is scanned between each first electrode 112 by the first odd-numbered line
Line Gr1 is connected.Second electrode 114 is arranged according to the first line direction 110 and the second column direction 121, and each second electrode
It is connected between 114 by the second odd number horizontal scanning line Gt1.Third electrode 122 is according to the second line direction 120 and the second column direction
121 and be arranged, and be connected between each third electrode 122 by the first even number horizontal scanning line Gr2.4th electrode, 124 foundation
Second line direction 120 and the first column direction 111 and be arranged, and between every one the 4th electrode 124 pass through the second even number horizontal scanning line
Gt2 is connected.
For example, the first line direction 110 can be odd-numbered line direction or even number line direction one of them, and the second row
Direction 120 can be the line direction relative to the first line direction 110.In other words, when the first line direction 110 is odd number line direction
When, the second line direction 120 is even number line direction.Correspondingly, the first column direction 111 can be odd column direction or even column side
One thereto, and the second column direction 121 can be the column direction relative to the first column direction 111.In other words, when first
When column direction 111 is odd number column direction, the second column direction 121 is even number column direction.In this embodiment, as shown in Figure 1A,
First electrode 112 is arranged according to odd number line direction with odd number column direction, and second electrode 114 is according to odd number line direction and even column
Direction and be arranged, third electrode 122 is arranged according to even number line direction with even number column direction, and the 4th electrode 124 is according to even number
Line direction is arranged with odd number column direction.In an embodiment, first electrode 112 and third electrode 122 are that complications are arranged, second
Electrode 114 and the 4th electrode 124 are tortuous setting.
First electrode 112, second electrode 114, third electrode 122 and the 4th electrode 124 are to receive inductive signal.
For example, when carrying out self-tolerant sensing by sensing circuit 100, the first electrode in the first line direction 110 is sequentially scanned
112 with second electrode 114, third electrode 122 and the 4th electrode 124 in the second line direction 120, with receive respectively induction believe
Number, to complete self-tolerant sensing.In this embodiment, as shown in Figure 1A, the first line direction 110 be odd number line direction, second
Line direction 120 is even number line direction, and line number possessed by sensing circuit 100 is four rows.Therefore, when pass through sensing circuit 100
When carrying out self-tolerant sensing, the third electricity in the first electrode 112 and second electrode 114, the second row in the first row is sequentially scanned
First electrode 112 and second electrode 114 in pole 122 and the 4th electrode 124, the third line and the third electrode in fourth line
122 and the 4th electrode 124, to receive inductive signal respectively.
In an embodiment, second electrode 114 is more to trigger first electrode 112 so that first electrode 112 receives induction
Signal.For example, when carrying out mutual capacitance type sensing by sensing circuit 100, sequentially by different in the first line direction 110
Second electrode 114 is to trigger the first electrode 112 in the first line direction 110, to obtain sense received by first electrode 112
Induction signal.Similarly, the 4th electrode 124 is more to trigger third electrode 122 so that third electrode 122 receives inductive signal.It lifts
For example, when carrying out mutual capacitance type sensing by sensing circuit 100, sequentially pass through the 4th electricity different in the second line direction 120
Pole 124 and trigger the second line direction 120 in third electrode 122, thus obtain induction received by third electrode 122 letter
Number.
In another embodiment, second electrode 114 is more to trigger third electrode 122 so that third electrode 122 receives sense
Induction signal.For example, when carrying out mutual capacitance type sensing by sensing circuit 100, pass through the second electricity in the first line direction 110
Pole 114 and trigger the second line direction 120 in third electrode 122, thus obtain induction received by third electrode 122 letter
Number.Similarly, the 4th electrode 124 is more to trigger first electrode 112 so that first electrode 112 receives inductive signal.Citing and
Speech passes through the 4th electrode 124 in the second line direction 120 triggering the when carrying out mutual capacitance type sensing by sensing circuit 100
First electrode 112 in one line direction 110, to obtain inductive signal received by first electrode 112.
In an embodiment, sensing circuit 100 further includes scanning driving device 102, and scanning driving device 102 electrically connects
It is connected to the first odd number horizontal scanning line Gr1, the second odd number horizontal scanning line Gt1, the first even number horizontal scanning line Gr2 and the second even number line
Scan line Gt2.Scanning driving device 102 by the first odd number horizontal scanning line Gr1 in the period 1 with the second odd-numbered line to be swept
Line Gt1 is retouched to scan first electrode 112 and second electrode 114, and in second round by the first even number horizontal scanning line Gr2 with
And second even number horizontal scanning line Gt2 to scan third electrode 122 and the 4th electrode 124.For example, scanning driving device
102 in the period 1 by the first odd number horizontal scanning line Gr1 and the second odd number horizontal scanning line Gt1 with drive first electrode 112 and
Second electrode 114, to carry out self-tolerant sensing or mutual capacitance type sensing；Scanning driving device 102 passes through first in second round
Even number horizontal scanning line Gr2 and the second even number horizontal scanning line Gt2 are to drive third electrode 122 and the 4th electrode 124, to carry out
Self-tolerant sensing or mutual capacitance type sensing.
In another embodiment, sensing circuit 100 further includes plurality of transmission lines D [0]~D [2] and a plurality of reception line S [0]
~S [2], and transmission line D [0]~D [2] is electrically connected second electrode 114 and the 4th electrode 124, receives line S [0]~S [2] electricity
Property connection first electrode 112 and third electrode 122.For example, in this embodiment, the first line direction 110 is odd-numbered line side
To the second line direction 120 is even number line direction, and line number possessed by sensing circuit 100 is four rows.Therefore, as shown in Figure 1B,
When carrying out self-tolerant sensing by sensing circuit 100, scanning driving device 102 is logical in period 1 (that is, time t1~t2)
It crosses the first odd number horizontal scanning line Gr1 and the second odd number horizontal scanning line Gt1 output high level signal and drives first in the first row
Electrode 112 and second electrode 114, and by transmission line D [0]~D [2] and line S [0]~S [2] output inductive signal is received, by
First electrode 112 and second electrode 114 in the first row is set to receive inductive signal by above-mentioned running；Scanning driving device
102 is defeated by the first even number horizontal scanning line Gr2 and the second even number horizontal scanning line Gt2 in second round (that is, time t2~t3)
Out high level signal and drive the third electrode 122 and the 4th electrode 124 in the second row, and by transmission line D [0]~D [2] with
It receives line S [0]~S [2] and exports inductive signal, make the third electrode 122 and the 4th electrode in the second row by above-mentioned running
124 are able to receive inductive signal；Scanning driving device 102 is swept in the period 3 (that is, time t3~t4) by third odd-numbered line
It retouches line Gr3 and the 4th odd number horizontal scanning line Gt3 output high level signal and drives the first electrode 112 and the second electricity in the third line
Pole 114, and by transmission line D [0]~D [2] and receive line S [0]~S [2] and export inductive signal, the is made by above-mentioned running
First electrode 112 and second electrode 114 in three rows are able to receive inductive signal.
In another embodiment, mutual capacitance type sensing is carried out when passing through sensing circuit 100, and transmission line D [0]~D [2] is wherein
One in the period 1 provide trigger signal to second electrode 114 when, second electrode 114 is to trigger first electrode
112 so that first electrode 112 receives inductive signal, and exports inductive signal by receiving line S [0]~S [2].In addition, when passing through
Sensing circuit 100 carries out mutual capacitance type sensing, and transmission line D [0]~D [2] one of them is to provide triggering letter in second round
When number to four electrodes 124, the 4th electrode 124 to trigger third electrode 122 so that third electrode 122 receives inductive signal,
And inductive signal is exported by receiving line S [0]~S [2].
The running schematic diagram for the sensing circuit 100 that Fig. 2A, 2C, 2E, 2G are drawn for revealed embodiment according to the present invention.
Clock signal of the sensing circuit 100 that Fig. 2 B, 2D, 2F, 2H are drawn for revealed embodiment according to the present invention when running shows
It is intended to.In an embodiment, the concrete operations of mutual capacitance type sensing are divided into horizontal sweep and vertical scanning, and horizontal sweep is specific
Operation is more divided into first level scanning and the second horizontal sweep.For example, Fig. 2A, 2B are please referred to, when pass through sensing circuit 100
When carrying out the first level scanning of mutual capacitance type, scanning driving device 102 is odd by first in period 1 (that is, time t1~t2)
Several rows of scan line Gr1 and the second odd number horizontal scanning line Gt1 output high level signal and drive first electrode 112 in the first row with
Second electrode 114, and second electrode 114 of the trigger signal into the first row is provided by transmission line D [1].In this way, in the first row
The second electrode 114 for receiving trigger signal can be used to trigger first electrode 112 in the first row so that it receives inductive signal,
And by receiving the received inductive signal of line S [0]~S [2] output.
Referring again to Fig. 2 C, 2D, when carrying out the first level scanning of mutual capacitance type by sensing circuit 100, turntable driving
Device 102 passes through the first even number horizontal scanning line Gr2 and the second even number horizontal scanning line in second round (that is, time t2~t3)
Gt2 exports high level signal and drives the third electrode 122 and the 4th electrode 124 in the second row, and is mentioned by transmission line D [1]
For fourth electrode 124 of the trigger signal into the second row.In this way, the 4th electrode 124 for receiving trigger signal in the second row can
To trigger the third electrode 122 in the second row so that it receives inductive signal, and exports institute by receiving line S [0]~S [2]
The inductive signal received.
Referring again to Fig. 2 E, 2F, when carrying out the second horizontal sweep of mutual capacitance type by sensing circuit 100, turntable driving
Device 102 passes through the first odd number horizontal scanning line Gr1 and the second odd number horizontal scanning line Gt1 in period 1 (that is, time t1~t2)
It exports high level signal and drives the first electrode 112 and second electrode 114 in the first row, and pass through transmission line D [0], D [2]
Second electrode 114 of the trigger signal into the first row is provided.In this way, receiving the second electrode 114 of trigger signal in the first row
It can be used to trigger the first electrode 112 in the first row so that it receives inductive signal, and exports by receiving line S [0]~S [2]
Received inductive signal.
Referring again to Fig. 2 G, 2H, when carrying out the second horizontal sweep of mutual capacitance type by sensing circuit 100, turntable driving
Device 102 passes through the first even number horizontal scanning line Gr2 and the second even number horizontal scanning line in second round (that is, time t2~t3)
Gt2 exports high level signal and drives the third electrode 122 and the 4th electrode 124 in the second row, and passes through transmission line D [0], D
[2] fourth electrode 124 of the trigger signal into the second row is provided.In this way, receiving the 4th electrode of trigger signal in the second row
124 can be used to trigger the third electrode 122 in the second row so that it receives inductive signal, and it is defeated to pass through reception line S [0]~S [2]
Received inductive signal out.
Correspondingly, the first level scanning of mutual capacitance type can be according to the side that above-described embodiment is demonstrated with the second horizontal sweep
Formula is implemented on the first electrode 112 in the third line and second electrode 114, third electrode 122 and the 4th electrode in fourth line
124.It will be understood that although columns possessed by sensing circuit 100 in this embodiment is five column, possessed line number is four
Row, but the present invention is not limited thereto.For example, columns possessed by sensing circuit 100 and line number can be operated according to implementation
Demand and flexibly adjust.
The running schematic diagram for the sensing circuit 100 that Fig. 3 A, 3C, 3E, 3G are drawn for revealed embodiment according to the present invention,
And clock signal of the sensing circuit 100 drawn for revealed embodiment according to the present invention of Fig. 3 B, 3D, 3F, 3H when running
Schematic diagram.In an embodiment, the concrete operations of mutual capacitance type sensing are divided into horizontal sweep and vertical scanning.For example, please join
Fig. 3 A, 3B are read, when carrying out the vertical scanning of mutual capacitance type by sensing circuit 100, scanning driving device 102 is in the period 1
(that is, time t1~t2) exports high level signal by the second odd number horizontal scanning line Gt1 and the first even number horizontal scanning line Gr2 and drives
The third electrode 122 in second electrode 114 and the second row in dynamic the first row, and triggering is provided by transmission line D [0]~D [2]
Second electrode 114 of the signal into the first row.In this way, receiving the second electrode 114 of trigger signal in the first row can be used to touch
The third electrode 122 in the second row is sent out so that it receives inductive signal, and passes through and receive received by line S [0]~S [2] output
Inductive signal.
Referring again to Fig. 3 C, 3D, when carrying out the vertical scanning of mutual capacitance type by sensing circuit 100, scanning driving device
102 are exported in second round (that is, time t2~t3) by the first odd number horizontal scanning line Gr1 and the second even number horizontal scanning line Gt2
High level signal and drive the 4th electrode 124 in the first electrode 112 and the second row in the first row, and pass through transmission line D [0]
~D [2] provides fourth electrode 124 of the trigger signal into the second row.In this way, receiving the 4th electricity of trigger signal in the second row
Pole 124 can be used to trigger the first electrode 112 in the first row so that it receives inductive signal, and passes through reception line S [0]~S [2]
The received inductive signal of output.
Referring again to Fig. 3 E, 3F, when carrying out the vertical scanning of mutual capacitance type by sensing circuit 100, scanning driving device
102 are exported in period 3 (that is, time t3~t4) by the second even number horizontal scanning line Gt2 and third odd number horizontal scanning line Gr3
High level signal and drive the 4th electrode 124 in the second row and the first electrode 112 in the third line, and pass through transmission line D [0]
~D [2] provides fourth electrode 124 of the trigger signal into the second row.In this way, receiving the 4th electricity of trigger signal in the second row
Pole 124 can be used to trigger the first electrode 112 in the third line so that it receives inductive signal, and passes through reception line S [0]~S [2]
The received inductive signal of output.
Referring again to Fig. 3 G, 3H, when carrying out the vertical scanning of mutual capacitance type by sensing circuit 100, scanning driving device
102 are exported in period 4 (that is, time t4~t5) by the first even number horizontal scanning line Gr2 and the 4th odd number horizontal scanning line Gt3
High level signal and drive third electrode 122 in the second row and the second electrode 114 in the third line, and pass through transmission line D [0]
~D [2] provides second electrode 114 of the trigger signal into the third line.In this way, receiving the second electricity of trigger signal in the third line
Pole 114 can be used to trigger the third electrode 122 in the second row so that it receives inductive signal, and passes through reception line S [0]~S [2]
The received inductive signal of output.
The flow chart for the method for sensing 400 that Fig. 4 is drawn for revealed embodiment according to the present invention.In an embodiment,
Method for sensing 400 can be implemented in above-mentioned sensing device 100, but the present invention is not limited thereto.For ease of understanding sensing side
Method 400, hereinafter will be using sensing device 100 as the demonstration target for implementing method for sensing 400.As shown in figure 4, method for sensing 400
It comprises the steps of:
S401: in the period 1 by the first odd number horizontal scanning line Gr1 and the second odd number horizontal scanning line Gt1 to scan first
Electrode 112 and second electrode 114；And
S402: in second round by the first even number horizontal scanning line Gr2 and the second even number horizontal scanning line Gt2 to scan third
Electrode 122 and the 4th electrode 124.
In this embodiment, when carrying out self-tolerant sensing by sensing circuit 100, scanning driving device 102 is in first
Period exports high level signal by the first odd number horizontal scanning line Gr1 and the second odd number horizontal scanning line Gt1 and drives in the first row
First electrode 112 and second electrode 114 to receive inductive signal, and by transmission line D [0]~D [2] and receive line S [0]~
S [2] exports inductive signal；Scanning driving device 102 passes through the first even number horizontal scanning line Gr2 and the second even number in second round
Horizontal scanning line Gt2 exports high level signal and drives third electrode 122 and the 4th electrode 124 to receive inductive signal, and passes through
Transmission line D [0]~D [2] and reception line S [0]~S [2] export inductive signal.
In an embodiment, method for sensing 400 further includes following rapid:
S403: second electrode 114 is triggered by plurality of transmission lines D [0]~D [1] one of them in the period 3, and is led to
The first odd number horizontal scanning line Gr1 and the second odd number horizontal scanning line Gt1 are crossed to scan first electrode 112；And
S404: the 4th electrode 124 is triggered by plurality of transmission lines D [0]~D [1] one of them in the period 4, and is led to
The first even number horizontal scanning line Gr2 and the second even number horizontal scanning line Gt2 are crossed to scan third electrode 122.
In this embodiment, when carrying out the horizontal sweep of mutual capacitance type by sensing circuit 100, scanning driving device 102
High level signal is exported by the first odd number horizontal scanning line Gr1 and the second odd number horizontal scanning line Gt1 in the period 3 and drives the
First electrode 112 and second electrode 114 in a line, and sequentially triggering is provided by transmission line D [0]~D [2] one of them
Second electrode 114 of the signal into the first row.In this way, receiving the second electrode 114 of trigger signal in the first row can be used to touch
The first electrode 112 in the first row is sent out so that it receives inductive signal, and passes through and receive received by line S [0]~S [2] output
Inductive signal；Scanning driving device 102 is scanned in the period 4 by the first even number horizontal scanning line Gr2 and the second even number line
Line Gt2 exports high level signal and drives the third electrode 122 and the 4th electrode 124 in the second row, and sequentially passes through transmission line D
[0]~D [2] one of them provides fourth electrode 124 of the trigger signal into the second row.In this way, receiving touching in the second row
The 4th electrode 124 to signal can be used to trigger the third electrode 122 in the second row so that it receives inductive signal, and passes through and connect
Take-up S [the 0]~received inductive signal of S [2] output.
In another embodiment, method for sensing 400 further includes following steps:
S405: second electrode 114 is triggered by plurality of transmission lines D [0]~D [1] in the period 5, and passes through the second odd number
Horizontal scanning line Gt1 and the first even number horizontal scanning line Gr2 are to scan third electrode 122；And
S406: the 4th electrode 124 is triggered by plurality of transmission lines D [0]~D [1] in the period 6, and passes through the first odd number
Horizontal scanning line Gr1 and the second even number horizontal scanning line Gt2 are to scan first electrode 112.
In this embodiment, when carrying out the vertical scanning of mutual capacitance type by sensing circuit 100, scanning driving device 102
High level signal is exported by the second odd number horizontal scanning line Gt1 and the first even number horizontal scanning line Gr2 in the period 5 and drives the
The third electrode 122 in second electrode 114 and the second row in a line, and trigger signal is provided by transmission line D [0]~D [2]
Second electrode 114 into the first row.In this way, the second electrode 114 for receiving trigger signal in the first row can be used to trigger
Third electrode 122 in two rows is so that it receives inductive signal, and exports received sense by receiving line S [0]~S [2]
Induction signal；Scanning driving device 102 passes through the first odd number horizontal scanning line Gr1 and the second even number horizontal scanning line Gt2 in the period 6
It exports high level signal and drives the 4th electrode 124 in the first electrode 112 and the second row in the first row, and pass through transmission line
D [0]~D [2] provides fourth electrode 124 of the trigger signal into the second row.In this way, receiving the of trigger signal in the second row
Four electrodes 124 can be used to trigger the first electrode 112 in the first row so that its receive inductive signal, and by receive line S [0]~
The received inductive signal of S [2] output.
In another embodiment, step S406 is please referred to, is touched when in the period 6 by plurality of transmission lines D [0]~D [1]
The 4th electrode 124 is sent out, and by the first odd number horizontal scanning line Gr1 and the second even number horizontal scanning line Gt2 to scan first electrode 112
Afterwards, more by the second even number horizontal scanning line Gt2 and third odd number horizontal scanning line Gr3 to scan the 5th electrode.5th electrode foundation
First line direction 110 and the first column direction 111 and be arranged, and on the 5th electrode and first electrode 112 be respectively arranged at and do not go together.
In this embodiment, the 5th electrode be the third line in first electrode 112, therefore, when by the first odd number horizontal scanning line Gr1 with
After second even number horizontal scanning line Gt2 scans through the first electrode 112 in the first row, can directly pass through plurality of transmission lines D [0]~
D [1] triggers the 4th electrode 124 in the second row, to pass through the second even number horizontal scanning line Gt2 and third odd number horizontal scanning line
Gr3 is to scan the first electrode 112 in the third line.
In above-described embodiment, disclosed sensing circuit and method for sensing are by combining self-tolerant detection technology
With mutual capacitance type detection technology to carry out touch-control sensing, in this way, self-tolerant detection technology and mutual capacitance type sensing skill can be had both simultaneously
The advantages of art, (e.g., mutual capacitance type detection technology had stronger edge induction amount, and self-tolerant detection technology is with stronger vertical
Plane sense should be measured), to effectively maintain touch-control sensing resolution and reduce sensing circuit area.In addition, when carrying out mutual capacitance type
When sensing, since disclosed sensing circuit senses different electrodes by meandering manner from method for sensing to receive
Inductive signal, therefore, disclosed sensing circuit and method for sensing in the electrode for only needing driving half in the same time,
To significantly reduce power consumption.
The usual skill of technical field will be readily understood that revealed embodiment realizes the excellent of one or more aforementioned citings
Point.After reading aforementioned specification, the usual skill of technical field be will be able to as disclosure herein makees multiple types
Change, displacement, equivalent and various other embodiments.Therefore protection scope of the present invention is worked as and is defined depending on claim
Based on person and its equivalency range.
Claims (10)
1. a kind of sensing circuit, characterized by comprising:
Multiple first electrodes, to receive inductive signal, wherein those first electrodes are according to one first line direction and a first row
Direction and be arranged, and be connected by one first odd number horizontal scanning line；
Multiple second electrodes, to receive inductive signal or trigger those first electrodes so that those first electrodes receive induction letter
Number, wherein those second electrodes are arranged according to first line direction with one second column direction, and are swept by one second odd-numbered line
Line is retouched to be connected；
Multiple third electrodes, to receive inductive signal, wherein those third electrodes are according to one second line direction and the secondary series
Direction and be arranged, and be connected by one first even number horizontal scanning line；
Multiple 4th electrodes, to receive inductive signal or trigger those third electrodes so that those third electrodes receive induction letter
Number, wherein those the 4th electrodes are arranged according to second line direction with first column direction, and are swept by one second even number line
Line is retouched to be connected；And
Plurality of transmission lines is electrically connected those second electrodes and those the 4th electrodes；
Wherein when the sensing circuit carries out mutual capacitance type sensing, at least one of those transmission lines is when providing rule in each period
The trigger signal of sequence.
2. sensing circuit according to claim 1, which is characterized in that those first electrodes are complications with those third electrodes
Setting, those second electrodes and those the 4th electrodes are tortuous setting.
3. sensing circuit according to claim 2, which is characterized in that those second electrodes are more to trigger those thirds electricity
Pole so that those third electrodes receive inductive signal, those the 4th electrodes more to trigger those first electrodes so that those first
Electrode receives inductive signal.
4. sensing circuit according to claim 3, which is characterized in that further include:
One scanning driving device is electrically connected at the first odd number horizontal scanning line, the second odd number horizontal scanning line, first even number
Horizontal scanning line and the second even number horizontal scanning line, and in a period 1 by the first odd number horizontal scanning line and this
Two odd number horizontal scanning lines pass through first even number in a second round to scan those first electrodes and those second electrodes
Horizontal scanning line and the second even number horizontal scanning line are to scan those third electrodes and those the 4th electrodes.
5. sensing circuit according to claim 4, which is characterized in that further include:
A plurality of reception line is electrically connected those first electrodes and those third electrodes,
Wherein when those transmission line one of them are to be somebody's turn to do when the period 1 providing trigger signal to those second electrodes
A little second electrodes are and defeated by those reception lines to trigger those first electrodes so that those first electrodes receive inductive signal
Inductive signal out；When those transmission line one of them are to provide trigger signal to those the 4th electrodes in the second round
When, those the 4th electrodes are to trigger those third electrodes so that those third electrodes receive inductive signal, and connect by those
Take-up exports inductive signal.
6. a kind of method for sensing, which is characterized in that be applied to sensing circuit as described in claim 1, include:
In a period 1 by the first odd number horizontal scanning line and the second odd number horizontal scanning line to scan those first electrodes
With those second electrodes；And
In a second round by the first even number horizontal scanning line and the second even number horizontal scanning line to scan those third electrodes
With those the 4th electrodes.
7. method for sensing according to claim 6, which is characterized in that further include:
Those second electrodes are triggered by these transmission line one of them in a period 3, and are swept by first odd-numbered line
Line and the second odd number horizontal scanning line are retouched to scan those first electrodes；And
Those the 4th electrodes are triggered by those transmission line one of them in a period 4, and are swept by first even number line
Line and the second even number horizontal scanning line are retouched to scan those third electrodes.
8. method for sensing according to claim 7, which is characterized in that further include:
Those second electrodes are triggered by those transmission lines in a period 5, and even by the second odd number horizontal scanning line and first
Several rows of scan lines are to scan those third electrodes.
9. method for sensing according to claim 8, which is characterized in that further include:
Those the 4th electrodes are triggered by those transmission lines in a period 6, and even by the first odd number horizontal scanning line and second
Several rows of scan lines are to scan those first electrodes.
10. method for sensing according to claim 9, which is characterized in that touched when in the period 6 by those transmission lines
Send out those the 4th electrodes, and by the first odd number horizontal scanning line and the second even number horizontal scanning line to scan those first electrodes after,
More by the second even number horizontal scanning line and a third odd number horizontal scanning line to scan multiple 5th electrodes,
Wherein those the 5th electrodes are arranged according to first line direction with first column direction, and those the 5th electrodes and those
First electrode is respectively arranged at do not go together on.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105122735A TWI601051B (en) | 2016-07-19 | 2016-07-19 | Sensing circuit and sensing method |
| TW105122735 | 2016-07-19 |
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| Publication Number | Publication Date |
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| CN106371681A CN106371681A (en) | 2017-02-01 |
| CN106371681B true CN106371681B (en) | 2019-08-30 |
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| CN201610786150.9A Expired - Fee Related CN106371681B (en) | 2016-07-19 | 2016-08-31 | sensing circuit and sensing method |
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| TW (1) | TWI601051B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI621988B (en) | 2017-08-03 | 2018-04-21 | 友達光電股份有限公司 | Sensing method of fingerprint sensor |
| CN111446359B (en) * | 2020-05-15 | 2023-05-30 | 京东方科技集团股份有限公司 | Piezoelectric device, manufacturing method thereof, electronic device and control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0836417B1 (en) * | 1996-04-26 | 2003-09-10 | Philips Electronics N.V. | Fingerprint sensing devices and systems incorporating such |
| TW201602852A (en) * | 2014-07-08 | 2016-01-16 | 中華大學 | Electrostatic and piezo-electric touch panel |
| CN105335013A (en) * | 2015-12-03 | 2016-02-17 | 深圳磨石科技有限公司 | Touch display device and electronic device |
| CN205230072U (en) * | 2015-04-27 | 2016-05-11 | 瑞鼎科技股份有限公司 | Capacitanc fingerprint sensing apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI277035B (en) * | 2005-11-04 | 2007-03-21 | Innolux Display Corp | A liquid crystal display and it's driving circuit and driving method |
| TWI503757B (en) * | 2014-05-30 | 2015-10-11 | Image Match Desgin Inc | Fingerprint sensor |
-
2016
- 2016-07-19 TW TW105122735A patent/TWI601051B/en not_active IP Right Cessation
- 2016-08-31 CN CN201610786150.9A patent/CN106371681B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0836417B1 (en) * | 1996-04-26 | 2003-09-10 | Philips Electronics N.V. | Fingerprint sensing devices and systems incorporating such |
| TW201602852A (en) * | 2014-07-08 | 2016-01-16 | 中華大學 | Electrostatic and piezo-electric touch panel |
| CN205230072U (en) * | 2015-04-27 | 2016-05-11 | 瑞鼎科技股份有限公司 | Capacitanc fingerprint sensing apparatus |
| CN105335013A (en) * | 2015-12-03 | 2016-02-17 | 深圳磨石科技有限公司 | Touch display device and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106371681A (en) | 2017-02-01 |
| TW201804306A (en) | 2018-02-01 |
| TWI601051B (en) | 2017-10-01 |
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