CN102346608A - Capacitive touch control plate having improved linearity - Google Patents
Capacitive touch control plate having improved linearity Download PDFInfo
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- CN102346608A CN102346608A CN2010102459057A CN201010245905A CN102346608A CN 102346608 A CN102346608 A CN 102346608A CN 2010102459057 A CN2010102459057 A CN 2010102459057A CN 201010245905 A CN201010245905 A CN 201010245905A CN 102346608 A CN102346608 A CN 102346608A
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Abstract
The invention discloses a capacitive touch control plate having improved linearity, and aims to overcome the defects of big linearity error and the like in the prior art. The capacitive touch control plate comprises a first path line which is connected with a plurality of diamond-shaped induction electrodes along a first direction and connected with a single diamond-shaped induction electrode at intervals along a second direction, and a second path line which is connected with the plurality of diamond-shaped induction electrodes along the first direction and connected with the single diamond-shaped induction electrode at intervals along the second direction and handshakes with the first path line. By the advantages of uniform layout of the diamond-shaped induction electrodes and a concept of a handshake inductor, the purpose of increasing the number of path line induction electrode plates without increasing the number of the path lines is achieved, so that the size of the makeable capacitive touch control plate can be twice as large as the original size, and the problem of linearity of the capacitive touch control plate is solved.
Description
Technical field
The present invention relates to a kind of capacitive touch control plate, particularly a kind of linear capacitive touch control plate that improves.
Background technology
The linear computing method that existing conductor moves on capacitive touch control plate; Be that area size by conductor touch mode capacitive Trackpad calculates; Wherein the induced electricity pole plate of capacitive touch control plate varies in size; Meeting also has Different Results because of the difference of the area ratio of conductor and induced electricity pole plate in linearity calculating.Like Fig. 1; Because the difference of capacitive touch control plate 12 and 14 sizes; Place on capacitive touch control plate 12 and the 14 same relative positions with the conductor 10 of same diameter, can cause the difference of diverse location on coordinate because the ratio of conductor 10 and induced electricity pole plate is different.When object's position moves in the arbitrary position of capacitive touch control plate, if its induced electricity pole plate is big more, linear error is then big more each other for it.
Fig. 2 is the United States Patent (USP) numbering capacitive touch control plate 16 that US6147680 disclosed; Its notion of holding the formula inductor with friendship is a trace layout; Help to improve the linearity of the capacitive touch control plate of large-size; But the position of figure centre circle choosing is two trace X1 on directions X and the Y direction; The friendship that Y2 forms each other locates 18 more; 20; And too much friendship is got over area and can be made the trace on directions X and the Y direction produce mutual inductance phenomenon each other; Therefore can't be used in the two-ply design; Need change the design of four laminates into to avoid mutual inductance phenomenon; Except the increase expense, to the problem that still must avoid mutual inductance phenomenon to cause on the software design.
Summary of the invention
One of the object of the invention is to propose a kind of linear capacitive touch control plate that improves.
One of the object of the invention is to propose a kind of capacitive touch control plate that reduces mutual inductance phenomenon.
According to the present invention; A kind of linear capacitive touch control plate that improves comprises along first direction and connects a plurality of rhombus induction electrodes and connect first trace that single this rhombus induction electrode forms at interval to second direction; And connect a plurality of these rhombus induction electrodes and connect second trace that single this rhombus induction electrode forms at interval to this second direction along this first direction, hand over this first trace and hold.
According to the present invention; A kind of linear capacitive touch control plate that improves comprises along first direction and connects a plurality of rhombus induction electrodes and connect first trace that a plurality of these rhombus induction electrodes form at interval to second direction; And connect a plurality of these rhombus induction electrodes and connect second trace that a plurality of these rhombus induction electrodes form at interval to this second direction along this first direction, hand over this first trace and hold.
The present invention utilizes the advantage of the even layout of rhombus induction electrode to add and submits the notion of holding the formula inductor; Reach the quantity that increases trace induced electricity pole plate and the purpose that must not increase the trace number; The capacitance touching control board size that can make can be doubled by original size again, and improve the linear problem of capacitive touch control plate.
Description of drawings
Fig. 1 is known capacitive touch control plate;
Fig. 2 is known capacitive touch control plate;
Fig. 3 is embodiments of the invention;
The capacitive touch control plate of Fig. 4 for being realized according to Fig. 3 embodiment;
Fig. 5 is an another embodiment of the present invention;
Fig. 6 is the track route map of object running fix on the capacitive touch control plate of known Fig. 1; And
Fig. 7 is the track route map of object running fix on the capacitive touch control plate of Fig. 4 of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
Fig. 3 is embodiments of the invention; Be to utilize the advantage of the even layout of rhombus induction electrode to add to submit the notion of holding the formula inductor; Reach the quantity that increases trace induced electricity pole plate and the purpose that must not increase the trace number; The capacitance touching control board size that can make can be doubled by original size again, and improve the linear problem of capacitive touch control plate.Trace 22,24 among the figure all is to connect a plurality of rhombus induction electrodes along directions X; Connect single rhombus induction electrode at interval to the Y direction again; But trace 22 can't be connected same rhombus induction electrode with trace 24 on the Y direction; But interleaved spatially; The rhombus induction electrode that connects on the Y direction out of the ordinary forms the situation of holding of handing over each other.When finger moves in the arbitrary position of contact, can reduce linear error.And rhombus induced electricity pole plate layout of the present invention is except the battery lead plate with all directions of making is uniformly distributed in the advantage on the capacitive electrode plate; The trace that more can reduce on directions X and the Y direction is handed over area more each other; Help to improve mutual inductance phenomenon; Like the capacitive touch control plate among Fig. 4 26; The same formula of holding of handing over that adopts; Two trace X1 on directions X and the Y direction, Y2 only form a friendship each other and locate 28 more; Software and hardware is more prone in design, allow the user linearity calculate with performance on easy master more.Area reduces half owing to hand over more, and embodiments of the invention will can be applicable to the design of two-ply.
Fig. 5 is an another embodiment of the present invention.Trace 30,32 among the figure; Trace 22,24 as Fig. 3 connects a plurality of rhombus induction electrodes along same direction; But the rhombus induction electrode that connects in the Y direction increases to two; And trace 30,32 interleaved equally spatially; The rhombus induction electrode that connects on the Y direction out of the ordinary forms the situation of holding of handing over each other, to be used on the large-size capacitive touch control plate; And need not increase number of traces, and improve the linearity of its capacitive touch control plate.And among other embodiment,, connect more rhombus induction electrode again to the Y direction in order to reach larger sized capacitance touching control board size, with the minimizing number of traces, and the linearity of larger sized capacitive touch control plate is improved.In addition, the mark that can only be implemented on single direction as the present invention is online, improves the linearity of single direction, and the trace of other direction is then kept the trace that the rhombus induction electrode is connected into orthoscopic.
The track route map of Fig. 6, the 7th, object running fix on capacitive touch control plate.When arbitrary conductor carries out the skew lines action; Expectation path is the dotted line among Fig. 6,7, but use the known capacitive touch control plate of Fig. 1 actual mobile after, the result who is measured is but like the trajectory of Fig. 6; Appear wavyly, and the induced electricity pole plate on the Trackpad is big more big more apart from expectation path difference.And the capacitive touch control plate of use Fig. 4 of the present invention, track that the object that measures moves such as the trajectory of Fig. 7, more approaching with expectation path, reach the linear effect of improving.
More than be stated as the purpose of illustrating for what preferred embodiment of the present invention was done; And be not intended to limit the present invention accurately is the form that is disclosed; Based on above instruction or to make an amendment or change from embodiments of the invention study be possible, embodiment has the knack of this operator and utilizes the present invention in practical application, to select with various embodiment and narrate for explaining orally principle of the present invention and allowing.
Claims (9)
1. a linear capacitive touch control plate that improves is characterized in that, comprises:
Connect a plurality of rhombus induction electrodes and connect first trace that single this rhombus induction electrode forms at interval along first direction to second direction; And
Connect a plurality of these rhombus induction electrodes and connect second trace that single this rhombus induction electrode forms at interval along this first direction, hand over this first trace and hold to this second direction.
2. capacitive touch control plate as claimed in claim 1 is characterized in that, this first direction and this second direction quadrature.
3. capacitive touch control plate as claimed in claim 1 is characterized in that, more comprises along this second direction and connects the 3rd trace that a plurality of rhombus induction electrodes form.
4. capacitive touch control plate as claimed in claim 1 is characterized in that, more comprises
Connect a plurality of rhombus induction electrodes and connect the 3rd trace that single this rhombus induction electrode forms at interval along this second direction to this first direction; And
Connect a plurality of these rhombus induction electrodes and connect the 4th trace that single this rhombus induction electrode forms at interval along this second direction, hand over the 3rd trace and hold to this first direction.
5. like the capacitive touch control plate of claim 3 or 4, it is characterized in that the 3rd trace forms single friendship place more with this first, second trace respectively.
6. a linear capacitive touch control plate that improves is characterized in that, comprises:
Connect a plurality of rhombus induction electrodes and connect first trace that a plurality of these rhombus induction electrodes form at interval along first direction to second direction; And
Connect a plurality of these rhombus induction electrodes and connect second trace that a plurality of these rhombus induction electrodes form at interval along this first direction, hand over this first trace and hold to this second direction.
7. capacitive touch control plate as claimed in claim 6 is characterized in that, this first direction and this second direction quadrature.
8. capacitive touch control plate as claimed in claim 6 is characterized in that, more comprises along this second direction and connects the 3rd trace that a plurality of rhombus induction electrodes form.
9. capacitive touch control plate as claimed in claim 8, wherein the 3rd trace forms single friendship place more with this first, second trace respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102459057A CN102346608A (en) | 2010-08-05 | 2010-08-05 | Capacitive touch control plate having improved linearity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102459057A CN102346608A (en) | 2010-08-05 | 2010-08-05 | Capacitive touch control plate having improved linearity |
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| CN102346608A true CN102346608A (en) | 2012-02-08 |
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| CN2010102459057A Pending CN102346608A (en) | 2010-08-05 | 2010-08-05 | Capacitive touch control plate having improved linearity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105972A (en) * | 2013-02-06 | 2013-05-15 | 南昌欧菲光科技有限公司 | Touch sensitive element and touch screen comprising same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050001689A (en) * | 2003-06-26 | 2005-01-07 | 삼성전자주식회사 | Liquid crystal display |
| CN201402456Y (en) * | 2009-04-20 | 2010-02-10 | 深圳市汇顶科技有限公司 | Capacitance-type touch panel with single-side wiring and touch screen terminal |
| CN101663638A (en) * | 2007-04-05 | 2010-03-03 | 爱特梅尔公司 | Two-dimensional position sensor |
-
2010
- 2010-08-05 CN CN2010102459057A patent/CN102346608A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050001689A (en) * | 2003-06-26 | 2005-01-07 | 삼성전자주식회사 | Liquid crystal display |
| CN101663638A (en) * | 2007-04-05 | 2010-03-03 | 爱特梅尔公司 | Two-dimensional position sensor |
| CN201402456Y (en) * | 2009-04-20 | 2010-02-10 | 深圳市汇顶科技有限公司 | Capacitance-type touch panel with single-side wiring and touch screen terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105972A (en) * | 2013-02-06 | 2013-05-15 | 南昌欧菲光科技有限公司 | Touch sensitive element and touch screen comprising same |
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Effective date of abandoning: 20170517 |
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