CN105204696B - Touch electrode structure and control device - Google Patents
Touch electrode structure and control device Download PDFInfo
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- CN105204696B CN105204696B CN201410301507.0A CN201410301507A CN105204696B CN 105204696 B CN105204696 B CN 105204696B CN 201410301507 A CN201410301507 A CN 201410301507A CN 105204696 B CN105204696 B CN 105204696B
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- induction electrode
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Abstract
This case provides a kind of touch electrode structure, including：Multigroup induction electrode pair, every group of induction electrode is to including adjacent one first induction electrode and one second induction electrode；Wherein first induction electrode and second induction electrode all have an at least camber claw-like electrode.By the design of this case touch electrode structure, can solve known touch-control sensing electrode can not effectively be converted to the missing of the non-rectangle touch areas such as round, oval or fan type.
Description
Technical field
System of the present invention is a kind of touch electrode structure, is espespecially applied to portable equipment or dresses the touch control electrode in formula device
Structure.
Background technology
After becoming the information product of mainstream with smartphone and tablet computer, instructed using touch control gesture
The touch panel (touch panel) of input also just becomes the man-machine interface control device that user prefers to use.The tool of mainstream at present
The touch panel based on rectangle is arranged in the portable electronic devices of touch function mostly, but following in wearing formula device
When gradually universal, the application of the non-rectangle touch area such as round or ellipse will be more and more, such as wrist-watch type is worn
Wear formula device.
Tradition is laid out using rectangular touch region by the touch control electrode that starting point developed, and is distributed mostly with two-dimensional rectangle
To complete.But when such configuration is transferred to the touch area of round or ellipse, traditional design will be unable to that side is effectively treated
The change in shape in edge region causes the touch point of fringe region to incude and leads to the problem of.Therefore, how to develop one kind and can be arranged and arrive
The touch control electrode layout and touch panel device of formula device are dressed, actually problem in the urgent need to address at present.
Invention content
To solve the problems, such as that aforementioned conventional touch electrode structure can not be applied to circular arc type touch area, the main mesh of this case
Be a kind of touch electrode structure is provided, including：First group of induction electrode pair, including the first induction electrode and the second induction
Electrode, the two is adjacent every the first gap and constitutes the first covering of the fan；And first group of signal wire, including the first signal wire and second
Signal wire, the two are respectively and electrically connected to first induction electrode and second induction electrode.
According to above-mentioned conception, first gap extends to by first point of the covering of the fan edge in this case touch electrode structure
2 points and be in single camber line.
According to above-mentioned conception, first gap is made of a plurality of camber line in this case touch electrode structure.
According to above-mentioned conception, further included in this case touch electrode structure：Second group of induction electrode pair, including third incudes
Electrode and the 4th induction electrode, the two is adjacent every the second gap and constitutes the second covering of the fan, second covering of the fan and first covering of the fan
It is adjacent；And second group of signal wire, including a third signal wire and a fourth signal line, the two be respectively and electrically connected to this
Three induction electrodes and the 4th induction electrode.
According to above-mentioned conception, a circular electrodes have been further included in this case touch electrode structure, have been arranged as a border circular areas
Circle centre position.
The another object of this case is to provide a kind of touch electrode structure, including：Multigroup induction electrode pair, wherein each group
Induction electrode is to comprising one first induction electrode and one second induction electrode, the two is adjacent every one first gap and respectively constitutes
One covering of the fan, such covering of the fan are combined into a circle；And multigroup signal wire, wherein each group of signal wire include one first signal wire with
And a second signal line, the two be respectively and electrically connected to first induction electrode in corresponding group of induction electrode and this second
Induction electrode.
In such induction electrode pair include one first induction electrode pair in this case touch electrode structure according to above-mentioned conception
It is to be located at one first covering of the fan and one second covering of the fan with one second induction electrode pair, and the arc angle of first covering of the fan
More than the arc angle of second covering of the fan, and the distance of first covering of the fan apart from the center of circle be less than second covering of the fan apart from the center of circle away from
From.
A further object of this case is to provide a kind of control device, including：One controller is electrically connected to a touch control electrode
Structure, to send out a drive signal to the touch electrode structure and measure multiple induced electricity capacitances from the touch electrode structure；
And a position computing module, it is electrically connected to the controller, and a touch points are calculated according to such induced electricity capacitance
Coordinate position.Wherein, which includes multigroup induction electrode pair, and every group of induction electrode is to including one first induced electricity
Pole and one second induction electrode, and first induction electrode and second induction electrode are respectively by an at least camber electrode institute structure
At.
A further object of this case is to provide a kind of touch electrode structure, including：Multigroup induction electrode pair, every group of induced electricity
Extremely to including adjacent one first induction electrode and one second induction electrode；Wherein first induction electrode and second induced electricity
Pole all has an at least camber claw-like electrode.
According to above-mentioned conception, in this case touch electrode structure those group of induction electrode to comprising one first induction electrode pair and
One second induction electrode pair, first induction electrode is to being contained in one first covering of the fan, and second induction electrode is to being contained in one
Two covering of the fans, and the arc chord angle of first covering of the fan is more than the arc chord angle of second covering of the fan.
According to above-mentioned conception, those group of induction electrode is to being to be set in a circular-base in this case touch electrode structure.
According to above-mentioned conception, a circular electrode is further included in this case touch electrode structure, is set to the circle of the circular-base
The heart.
According to above-mentioned conception, the circular electrode corresponds to a preferred coordinates or a button in this case touch electrode structure.
According to above-mentioned conception, multigroup signal wire is further included in this case touch electrode structure, every group of signal wire is electrically connected to
One corresponding induction electrode pair of those group of induction electrode centering.
According to above-mentioned conception, every group of signal linear system includes one first letter in those group of signal wire in this case touch electrode structure
Number line and a second signal line, are separately connected its corresponding first induction electrode and the second induction electrode.
According to above-mentioned conception, every first signal wire of this in this case touch electrode structure is connected to its corresponding first induced electricity
One base portion of pole, and this is connected to a tip of its corresponding second induction electrode per second signal line.
Description of the drawings
Fig. 1 developed the first embodiment schematic diagram about touch electrode structure by this case.
Fig. 2 is the part enlarged diagram of this case first embodiment.
Fig. 3 is this case about the schematic diagram for forming touch control electrode and gap in covering of the fan.
Fig. 4 is the rectangle schematic diagram that touch control electrode and gap are formed in rectangle.
Fig. 5 developed the second embodiment schematic diagram about touch electrode structure by this case.
Fig. 6 is the function block schematic diagram that this case is applied to touch device.
Specific implementation mode
Embodying some exemplary embodiments of this case features and advantages will in detail describe in the explanation of back segment.It should be understood that
This case can have various variations in different aspects, all not depart from the range of this case, and explanation therein and schema
It is to be illustrated as being used in itself, rather than to limit this case.
Referring to Fig. 1, its be by this case be improve known techniques missing developed about touch electrode structure the
One embodiment schematic diagram is mainly completed in the form of single conductive layer on 10 surface of substrate, which can be just
It takes equipment or dresses the display pannel of formula device.And the present embodiment system is illustrated with substrate 10 for circle, but not with this
It is limited.As seen from Figure 1, the touch electrode structure of this case can be covered with the circle of the substrate 10 by multigroup induction electrode to constituting
Shape region.The composition of wherein each group induction electrode pair is all similar, is illustrated by taking first group of induction electrode pair 11 as an example,
It is include the first induction electrode 111 and the second induction electrode 112 that external form is made of four camber claw-likes, and the two
Interlock adjacent across the first gap 110 and constitutes the first covering of the fan 119.By taking Fig. 1 as an example, border circular areas is divided into quarter, each
The configuration of a quarter equal portions is all identical, the lines only clearly distribution of difference Different electrodes of different shapes in electrode in Fig. 1,
The difference having between such electrode in any material is not represented.So to amplify this quadrant clearer to carry out for Fig. 2 systems
Explanation.
119 system of the first covering of the fan in Fig. 2 is by the first gap 110 by the first induction electrode 111 and the second induction electrode 112
It separates, the first gap 110 is mainly made of a plurality of camber line (have in this example seven, 1101~1107) so can be by first
The area of covering of the fan 119 is divided into two parts, and first be made of four camber claw-like electrodes is respectively equipped in two part areas
Induction electrode 111 and the second induction electrode 112.Four camber claw-like electrodes in first induction electrode 111 are all connected to letter
The first signal wire 121 in number line group 12, and four camber claw-like electrodes in the second induction electrode 112 are all connected to signal wire
Second signal line 122 in group 12.In this embodiment, 121 system of the first signal wire is connected in the first induction electrode 111 each
The base portion of camber claw-like electrode, but not limited to this.In implementation, the base of all camber claw-like electrodes in the first induction electrode 111
Portion can also be electrically connected, and the first signal wire 121 can be connected only to those camber claw-like electricity in the first induction electrode 111
Tip one of extremely so similarly can reach the purpose that the first induction electrode 111 is controlled by the first signal wire 121.
The connection type of camber claw-like electrode and second signal line 122 in second induction electrode 112 can be same or similar in the first sense
Answer the connection type of electrode 111 and the first signal wire 121.In one embodiment, signal line group 12 can be only arranged at those inductions
The side of electrode pair, at this point, the first signal wire 121 may be connected to the base of each camber claw-like electrode in the first induction electrode 111
Portion, and the base portion system of all camber claw-like electrodes is electrically connected in the second induction electrode 112, and second signal line 122
It can be connected only to the tip of one of those camber claw-like electrodes in the second induction electrode 112.By aforementioned induction electrode pair
The elastic connection type between first group of signal wire allows the touch electrode structure of this case to be suitable for various application scenarios.
In the embodiment shown in Figure 2, when the finger of user or other touch objects are seated in the first covering of the fan 119
When, it will cause the self-capacitance value sensed on the first induction electrode 111 and the second induction electrode 112 to generate change respectively,
And the electric connection of the first signal wire 121 and second signal line 122 in signal line group 12 is penetrated, it can utilize and signal wire
The controller (this not shown) of electric connection senses corresponding capacitance.The size of two capacitances is compared, just
The relative angle angle value that finger position is located on arcuate sectors can be estimated, such as the total angle of current covering of the fan is 90 degree (pi/2s), thoroughly
It crosses for capacitance ratio measured on the first induction electrode 111 and the second induction electrode 112, one can be estimated out
Less than the angle value of 90 degree (pi/2), and then obtain the angle in a polar coordinates.Details herein can refer to it is following specifically
It is bright.
And the gap that above-mentioned a plurality of camber line 1101~1107 is constituted, main purpose are points for increasing interpretation and going out angle
Resolution can also select so in resolution ratio acceptable or when the central angle of covering of the fan reduces by camber line
Quantity is reduced, or even is reduced on each covering of the fan and only has one, such as example shown in Fig. 3, can be only with by 3 edge of covering of the fan
1: 31 extend to the single camber line 33 of the second point 32 to complete.That is, each of those induction electrode centerings
The number of camber claw-like electrode in induction electrode can have different designs in response to the occasion applied, and each induction electrode can
With one or more camber claw-like electrodes.And from coming from this figure, which is by shown in figure four, by two trapezoidal electricity
Pole 41,42 it is combined at rectangular bend after be formed by shape.And calculate location information using the electrode configuration of figure four
It has been prior art, so it will not be repeated.And the derivation simplified is as follows：Mainly utilize the geometrical relationship of two trapezoidal electrodes
With the ratio of induced electricity capacitance, and then following three simultaneous equations is listed：
(x-a)/(b-a)=(Y-y)/Y, wherein (x, y) represents the two-dimensional coordinate of touch points, a and b respectively represents trapezoidal
Upper bottom, X and Y are then the length and width of rectangle；
X/ (a+b)=L/ (U+L), wherein L represent the capacitive sensing amount about trapezoidal electrode 41 sensed, and U, which is represented, to be surveyed
The capacitive sensing amount about trapezoidal electrode 42 arrived；
R=(b/a), wherein R represent the ratio of a and b；
And after rectangle is converted into covering of the fan, Y will can be used (π r)/n to replace, so (x-a)/(b-a)=((π r)/n-y)/
(π r)/n, wherein n are the halved number of circle, and r is then the average value of the covering of the fan outer shroud circular diameter and inner ring circular diameter.And by upper
It states formula and can simplify and y=((RU-L)/(R-1) (U+L)) ((π r)/n), x can also be used similar method and estimate, therefore
Using x, y value in Fig. 3, angle, θ in polar coordinates needed for this case will be pushed away to obtain.
Fig. 5 is referred to again, is that this case developed second embodiment schematic diagram about touch electrode structure, with
Difference between first embodiment is that the halved number of circle is somewhat different, since the area of interior ring region covering of the fan 51 is smaller,
Inner ring is only distinguished into quarter (n=4), but when to area larger outer zone, for that can be maintained resolution ratio, this case is just
Be divided into eight especially ring region covering of the fans 52, that is, n=8, thus, the arc length of each electrode will not it is long and
The case where leading to position inaccurate, occurs.By parity of reasoning, can also will be outer if the touch-control border circular areas of large area needs to realize
The covering of the fan of ring is divided into more polylith again, thus when and the distance of first covering of the fan apart from the center of circle is less than second covering of the fan apart from the center of circle
Distance, the second covering of the fan can be divided into more part so that the arc angle of first covering of the fan be more than second covering of the fan circle
Arc angle.Such variation is quite polynary, but neither from mentioned above principle, therefore it will not be described here.It is single it will to be equipped with one as circle centre position
One circular electrodes 59 may be defined to a button or a preferred coordinates, can play the part of the role of acknowledgement key in touch tablet, or
It is to recognize whether the preferred coordinates are touched.
This case is applied to the function block schematic diagram of touch device by Fig. 6 systems, and first, this case means are completed multiple tactile
Control induction electrode 60 can cloth be built in any round, oval or shapes such as fan-shaped, and divide with multiple touch-control sensing electrodes 60
62 system of controller that a plurality of signal wire 61 not extended is electrically connected is every a bit of time just to such touch-control sensing electricity
Pole 60 sends out drive signal and measures the induced electricity capacitance of each induction electrode 60, and such induced electricity capacitance is transmitted to rear end
Position computing module 63, and then carry out the operation of similar aforesaid equation to estimate out the polar coordinate position number of finger touch points
According to, then again by obtained polar coordinate position data or transformed two-dimensional coordinate pass to it is portable/wearing formula device 64
With.
In conclusion this case can solve known touch-control sensing electrode, can not to be effectively converted to round, oval or fan type etc. non-
The missing of rectangular touch area, therefore the changeable wearing formula device of moulding or portable equipment are can be widely applied to, but also can
To maintain fairly good positioning resolution.In addition, this case as person familiar with the technology appoint apply craftsman think and be it is all as modify, so
It neither takes off as attached claim is intended to Protector.
Claims (8)
1. a kind of control device, including：
Controller is electrically connected to touch electrode structure, to send out drive signal to the touch electrode structure and from the touch-control
Electrode structure measures multiple induced electricity capacitances；And
Position computing module is electrically connected to the controller, and calculates the coordinate of touch points according to such induced electricity capacitance
Position；
Wherein, which includes multigroup induction electrode pair, and every group of induction electrode is to including the first induction electrode and the
Two induction electrodes, and first induction electrode and second induction electrode are made of an at least camber claw-like electrode respectively, it should
Multigroup induction electrode is to comprising the first induction electrode pair and the second induction electrode pair, first induction electrode is to being contained in the first fan
Face, second induction electrode is to being contained in the second covering of the fan, and the arc chord angle of first covering of the fan is more than the arc chord angle of second covering of the fan,
And the distance of first covering of the fan apart from the center of circle is less than the distance of second covering of the fan apart from the center of circle.
2. a kind of touch electrode structure, including：
Multigroup induction electrode pair, every group of induction electrode is to including adjacent the first induction electrode and the second induction electrode；Wherein should
First induction electrode and second induction electrode all have an at least camber claw-like electrode；
Wherein, multigroup induction electrode is to including the first induction electrode pair and the second induction electrode pair, first induction electrode pair
Be contained in the first covering of the fan, second induction electrode to being contained in the second covering of the fan, and the arc chord angle of first covering of the fan be more than this second
The arc chord angle of covering of the fan, and the distance of first covering of the fan apart from the center of circle is less than the distance of second covering of the fan apart from the center of circle.
3. touch electrode structure as claimed in claim 2, which is characterized in that multigroup induction electrode is to being to be set to round base
On bottom.
4. touch electrode structure as claimed in claim 3, which is characterized in that further include：
Circular electrode is set to the center of circle of the circular-base.
5. touch electrode structure as claimed in claim 4, which is characterized in that the circular electrode corresponds to preferred coordinates or button.
6. touch electrode structure as claimed in claim 2, which is characterized in that further include：
Multigroup signal wire, every group of signal wire are electrically connected to the corresponding induction electrode pair of multigroup induction electrode centering.
7. touch electrode structure as claimed in claim 6, which is characterized in that every group of signal linear system includes in multigroup signal wire
First signal wire and second signal line are separately connected its corresponding first induction electrode and the second induction electrode.
8. touch electrode structure as claimed in claim 7, which is characterized in that every first signal wire be connected to its corresponding
The base portion of one induction electrode, and this is connected to the tip of its corresponding second induction electrode per second signal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410301507.0A CN105204696B (en) | 2014-06-27 | 2014-06-27 | Touch electrode structure and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410301507.0A CN105204696B (en) | 2014-06-27 | 2014-06-27 | Touch electrode structure and control device |
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| Publication Number | Publication Date |
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| CN105204696A CN105204696A (en) | 2015-12-30 |
| CN105204696B true CN105204696B (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410301507.0A Expired - Fee Related CN105204696B (en) | 2014-06-27 | 2014-06-27 | Touch electrode structure and control device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105824476B (en) * | 2016-04-28 | 2018-08-07 | 京东方科技集团股份有限公司 | A kind of touch-control structure and its driving method, touch screen, touch control display apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2702292A1 (en) * | 1993-03-03 | 1994-09-09 | Battarel Claude | Static control of a cursor in speed and direction. |
| CN101553711A (en) * | 2006-06-20 | 2009-10-07 | 量研科技股份有限公司 | Capacitive position sensor |
| CN102314275A (en) * | 2010-07-01 | 2012-01-11 | 安森美半导体贸易公司 | The electrostatic capacity type touch sensor |
| CN103309488A (en) * | 2012-03-15 | 2013-09-18 | 宸鸿科技(厦门)有限公司 | Touch control panel and manufacturing method of touch control panel |
| CN203350825U (en) * | 2013-07-02 | 2013-12-18 | 宸鸿科技(厦门)有限公司 | Touch panel and cover plate structure and pattern zone sensing structure thereof |
| CN204102095U (en) * | 2014-06-27 | 2015-01-14 | 晨星半导体股份有限公司 | Touch electrode structure |
-
2014
- 2014-06-27 CN CN201410301507.0A patent/CN105204696B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2702292A1 (en) * | 1993-03-03 | 1994-09-09 | Battarel Claude | Static control of a cursor in speed and direction. |
| CN101553711A (en) * | 2006-06-20 | 2009-10-07 | 量研科技股份有限公司 | Capacitive position sensor |
| CN102314275A (en) * | 2010-07-01 | 2012-01-11 | 安森美半导体贸易公司 | The electrostatic capacity type touch sensor |
| CN103309488A (en) * | 2012-03-15 | 2013-09-18 | 宸鸿科技(厦门)有限公司 | Touch control panel and manufacturing method of touch control panel |
| CN203350825U (en) * | 2013-07-02 | 2013-12-18 | 宸鸿科技(厦门)有限公司 | Touch panel and cover plate structure and pattern zone sensing structure thereof |
| CN204102095U (en) * | 2014-06-27 | 2015-01-14 | 晨星半导体股份有限公司 | Touch electrode structure |
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| CN105204696A (en) | 2015-12-30 |
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Effective date of registration: 20181214 Address after: Taiwan Hsinchu County China jhubei City, Taiwan two yuan Street No. 1 10 floor 1 Patentee after: Ilitek Technology Co., Ltd. Address before: Taiwan Hsinchu County Tai Yuan Street China jhubei City, No. 26 4 floor 1 Patentee before: MStar Semiconductor Co., Ltd. |
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Granted publication date: 20181109 Termination date: 20190627 |