CN108595066A - A kind of monolayer capacitive touch screen - Google Patents
A kind of monolayer capacitive touch screen Download PDFInfo
- Publication number
- CN108595066A CN108595066A CN201810618917.6A CN201810618917A CN108595066A CN 108595066 A CN108595066 A CN 108595066A CN 201810618917 A CN201810618917 A CN 201810618917A CN 108595066 A CN108595066 A CN 108595066A
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- group
- conductor wire
- touch screen
- wire
- signal
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- 239000002356 single layer Substances 0.000 title claims abstract description 15
- 239000004020 conductor Substances 0.000 claims description 60
- 239000010410 layer Substances 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—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
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
Abstract
The present invention is a kind of monolayer capacitive touch screen, the equipment is included in substrate upper edge X, Y-direction arranges two groups of parallel conducting wires, arrange to be M root conducting wires R in X direction, each wire R in X direction from left to right after again along X negative direction wraparounds from right to left, and so on, until the M root conducting wire R are covered with X-direction according to the first setpoint distance interval, any group of continuous m roots conducting wire R is differed in X direction；It is identical along Y-direction, per m × n crosspoint it is an effective touch location when positioning.Conducting wire is repeated to tear open to return by the present invention, causes the end of a thread to reduce, cost reduction.
Description
Technical field
The present invention relates to capacitance touch apparatus fields, more particularly to monolayer capacitive touch screen.
Background technology
Touch apparatus includes mainly touch screen TP and touches blank, and major function is fixed to the point of touch or track
Position, is a kind of input equipment of computer, is typically mounted at the transparent touch apparatus before display screen and is known as touch screen, is installed
In electronics clappers is exactly to touch blank.Currently, touch apparatus is according to the method master to touch point or touch track positioning
There are infrared touch equipment, electric resistance touch screen and capacitance touch screen.Currently, to be mainly used in electronics white for infrared touch positioning
On plate, and the method for resistance positioning and capacitance positioning is used primarily on touch screen, with the development of science and technology, in electronic whiteboard
On also use resistance positioning and capacitance positioning method.
Currently, being the main body of touch apparatus using capacitive electronic whiteboard and touch screen.Capacity-type electronic blank and touch
Screen is touched as shown in Figure 1, including the first protective layer 01 of glass or transparent PCT etc., is one layer of ITO etc. saturating under the first protective layer
First conductive circuit layer 02 made of bright etching is exactly the dielectric layer filled by transparent adhesive tape below the first conductive circuit layer 02
03, being the second conductive circuit layer 04 as 02 fundamental component of the first conductive circuit layer below dielectric layer 03, led second
Electric line layer 04 time is for the second protective layer 05 or directly on note to display screen.In practice, in the first conductive circuit layer 02 and
Etching forms crisscross circuit as shown in Figure 2, usually horizontal line (T, X-direction) and vertical line (R, the side Y on two conductive layers 03
To), due to there is the medium of the transparent glue composition of insulation between the first conductive circuit layer 02 and the second conductive circuit layer 04
Layer 03, therefore T and R infalls are not contact (insulation) between each other, therefore, have certain capacitance, one is emitted from T
Pulse signal will receive a corresponding pulse signal due to capacitive sensing on R, if at this point, human hand or other touches
Pen etc. touches some crosspoint, then since human hand is either between other felt pens and T or R there is also capacitance, also can
Part energy is incuded, in this way, the pulse signal low compared with normal amplitude will be received on R.As shown in Fig. 2, working as hand or touch
Pen touches TjAnd RiWhen intersection, RiThe pulse signal low compared with normal amplitude will be received on line, in this manner it is possible to be positioned at Tj Ri
Infall is touch point, this is a kind of mode of absolute fix.At this moment T and R can be the metal wire of copper wire or other entities,
Can also be transparent silver wire or transparent conductive film (mostly using transparent conducting wire on touch screen at present).
On the touch apparatus such as capacitive touch screen or touch electronic whiteboard, the first conductive circuit layer 02 and second is conductive
Line layer 04 is referred to as inductive layer, and the cost of inductive layer occupies more ratio in entire touch screen, therefore in order to reduce into
This, reduces the laying of laminate layer material by various modes in this field, still, inductive layer cost as two layers is difficult to reduce.
As Chinese patent literature CN103902092B discloses a kind of touch screen with double-deck conductive circuit layer.
Invention content
The present invention is directed on the touch apparatus such as current capacitive touch screen or touch electronic whiteboard due to wiring cost height
Deficiency, a kind of monolayer capacitive touch screen is provided.
The technical scheme is that：A kind of monolayer capacitive touch screen, including conductive circuit layer and touch positioning device,
It is characterized in that：In the conductive circuit layer, first group of conductor wire T1, T2, T3 ... Tn and second is extended in a first direction
Group conductor wire R1, R2, R3 ... Rn, between described first group of conductor wire T1, T2, T3 ... Tn and second group of conducting wire R1, R2, R3 ... Rn
Every setting；Further include sender unit T and signal receiving device R, the sender unit T conductive by first group respectively
The initiating terminal of line T1, T2, T3 ... Tn send setting electric signal, and the signal receiving device R is led from described second group respectively
Electric wire R1, R2, R3 ... Rn receive electric signal；Be additionally provided in the signal receiving device R detection receive signal with it is described
Setting electric signal phase delay detection device；The touch positioning device receives letter according to signal receiving device R
Number the serial number of second group of conductor wire R1, R2, R3 ... Rn determine the position of touch point in a first direction, according to signal receiving device
R receive signal phase delay determine touch point the direction vertical with first direction position.
Further, in above-mentioned monolayer capacitive touch screen：It is each in first group of conductor wire T1, T2, T3 ... Tn
Root conducting wire is arranged in parallel.
Further, in above-mentioned monolayer capacitive touch screen：First group of conductor wire T1, T2, T3 ... Tn and
Two groups of conductor wire R1, R2, R3 ... Rn, the resistance of the unit length of middle each wire and its length are in a linear relationship.
Further, in above-mentioned monolayer capacitive touch screen：The sender unit T and signal receiving device T
It is separately positioned on the same end of the conducting wire of first group of conductor wire T1, T2, T3 ... Tn and second group of conductor wire R1, R2, R3 ... Rn.
Further, in above-mentioned monolayer capacitive touch screen：The setting electric signal of the sender unit T transmittings
For periodic square-wave signal.
The present invention is described in detail in the following with reference to the drawings and specific embodiments.
Description of the drawings
Fig. 1 is touch screen structure figure in the prior art.
Fig. 2 is the distribution map of the conducting wire T and conducting wire R in 1 touch screen of the embodiment of the present invention.
Fig. 3 is the distribution map of the conducting wire T and conducting wire R in 2 touch screen of the embodiment of the present invention.
Specific implementation mode
The present embodiment is a kind of capacitive touch screen of only one layer of conductive circuit layer, as shown in Fig. 2, in this layer of conductor wire
On the floor of road, two groups of conductor wires are arranged in parallel, including first group of conductor wire T1, T2, T3 ... Tn and second group of conductor wire R1,
R2, R3 ... Rn, they are mutually insulateds, and the conductor wire of 2n roots is that the parallel transverse direction along touch screen is arranged, one first group
Conductor wire Rj compositions in conductor wire Tj and second group of conductor wire R1, R2, R3 ... Rn in conductor wire T1, T2, T3 ... Tn
A pair of of transmission-reception conductor wire pair, it is second group of conducting wire that interval setting here, which is on first group of its side conductor wire Ti,
Ri, next is exactly first group of conductor wire Ti+1, followed by Ri+1.In this way, sender unit T sends one on conductor wire Tj
If a periodic square-wave signal and is led touched at this time between conductor wire Tj and conductor wire Rj such as the P1 points in Fig. 1
Signal receiving device R connected electric wire Rj will receive signal, at this point, the abscissa of touch point on the touchscreen can be by leading
The serial number j of electric wire Tj or conductor wire Rj determines, and the ordinate of the touch point P1 then biography by transmission signal on conductor wire Tj
Distance is sent to determine, in the present embodiment, as shown in Figure 1, the transparent silver wire (or ITO etc.) used is used as conductor wire, conductor wire
Resistivity, that is, the resistance of unit length and the cross-sectional area of conductor wire are inversely proportional, that is, thickness and width with conductor wire
The product of degree is inversely proportional, and in practice, the thickness of conductor wire is substantially the same, in this way, when conductive line width narrows, list
The resistance of bit length will increase, as shown in Figure 1, in this way, when touch point P1 is in the different location of conductor wire Tj, conductor wire
The resistance of Tj will be different, it is known that flowing through conductor wire Tj signals since conductor wire Tj itself has resistance, it will there is delay, and
The phase of delay is related with resistance sizes, and by long-term experiment, the phase of delay is directly proportional to resistance, therefore, the factory of touch screen
Family is to use the lower material of resistivity to overcome the influence of phase delay, the method for use, can further result in cost in this way
Rise, in the present embodiment, phase delay need not be reduced, on the contrary, it is also necessary to phase delay is detected, and utilize and detect
The amount of phase delay determine the ordinate of touch point P1.Touch point conductor wire Tj different places, at conductor wire Rj
The delay of the signal received is different, and the touch positioning device of such display screen can be determined according to the phase-delay quantity detected
The ordinate of touch point P1.
In the present embodiment, in order to be accurately located the ordinate of touch point P1, it is measured according to practice, first touch point
It is arranged in the top of touch screen, measures the amount θ at this point, the delay phase of the signal received at conductor wire Rj1, then, touch
It touches and is a little arranged in the bottom of touch screen, measure the amount θ at this point, the delay phase of the signal received at conductor wire Rj2, calculate
Poor Δ θ=θ of two phase delay2-θ1；In conjunction with the height H of touch screen, the retardation of unit of account heightIn this way, when touch point is in any point, the amount θ of the delay phase of the signal received at conductor wire Rj
Corresponding heightThe ordinate of touch point P1 can thus be calculated.
Example 1 above is sent using emitter T in the upper end of first group of conductor wire T1, T2, T3 ... Tn, signal
The mode that reception device R is received in the end of second group of conductor wire R1, R2, R3 ... Rn, it is thus impossible to leading using same widths
Electric wire, first group of conductor wire T1, T2, T3 ... Tn that width can only be used to become narrow gradually, in this way, touch point P1 is in first group of conduction
The line positions T1, T2, T3 ... Tn and by a distance from it in directly proportional, because if first group of conductor wire T1, T2, T3 ... Tn and the
Two groups of conductor wire R1, R2, R3 ... Rn width are constant, then resistance variations are by unobvious.
In short, in the present embodiment, one layer of conductive circuit layer is only used, cost is saved.In the present embodiment, signal is utilized
This characteristic of the delay of conductor wire by different impedances, it may be determined that the distance that signal transmits on conductor wire determines in this way
Its ordinate.
Embodiment 2, as shown in figure 3, emitter T and signal receiving device R be separately positioned on first group of conductor wire T1,
The same end of T2, T3 ... Tn and second group of conductor wire R1, R2, R3 ... Rn, in this way, touch point P2 is higher, delay is just smaller, and two
Group conducting wire does not need Trapezoidal yet.
Claims (5)
1. a kind of monolayer capacitive touch screen, including conductive circuit layer and touch positioning device, it is characterised in that：It is led in described
On electric line layer, first group of conductor wire (T1, T2, T3 ... Tn) and second group of conductor wire (R1, R2, R3 ... are extended in a first direction
Rn), first group of conductor wire (T1, T2, T3 ... Tn) and second group of conducting wire (R1, R2, R3 ... Rn) interval setting；Further include
Sender unit T and signal receiving device R, the sender unit (T) respectively by first group of conductor wire (T1, T2,
T3 ... Tn) initiating terminal send setting electric signal, the signal receiving device (R) is respectively from second group of conductor wire
(R1, R2, R3 ... Rn) receives electric signal；Be additionally provided in the signal receiving device (R) detection receive signal with it is described
Setting electric signal phase delay detection device；The touch positioning device is received according to signal receiving device (R)
The serial number of second group of conductor wire R1, R2, R3 ... Rn of signal determines the position of touch point in a first direction, is received and is filled according to signal
Set (R) receive signal phase delay determine touch point the direction vertical with first direction position.
2. monolayer capacitive touch screen according to claim 1, it is characterised in that：First group of conductor wire (T1,
T2, T3 ... Tn) in each conducting wire be arranged in parallel.
3. monolayer capacitive touch screen according to claim 2, it is characterised in that：First group of conductor wire (T1,
T2, T3 ... Tn) and second group of conductor wire (R1, R2, R3 ... Rn), the resistance of the unit length of middle each wire be in its length
Linear relationship.
4. monolayer capacitive touch screen according to claim 1, it is characterised in that：The sender unit T and letter
Number reception device T is separately positioned on first group of conductor wire (T1, T2, T3 ... Tn) and second group of conductor wire (R1, R2, R3 ... Rn)
The same end of conducting wire.
5. monolayer capacitive touch screen according to claim 1, it is characterised in that：The sender unit T transmittings
Set electric signal as periodic square-wave signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810618917.6A CN108595066A (en) | 2018-06-15 | 2018-06-15 | A kind of monolayer capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810618917.6A CN108595066A (en) | 2018-06-15 | 2018-06-15 | A kind of monolayer capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108595066A true CN108595066A (en) | 2018-09-28 |
Family
ID=63627734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810618917.6A Pending CN108595066A (en) | 2018-06-15 | 2018-06-15 | A kind of monolayer capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108595066A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976162A (en) * | 2010-08-13 | 2011-02-16 | 苏州瀚瑞微电子有限公司 | Monolayer wiring method of capacitive touch screen |
| TW201423531A (en) * | 2012-12-05 | 2014-06-16 | Wintek Corp | Capacitive touch panel |
| US20160117044A1 (en) * | 2014-10-28 | 2016-04-28 | Innolux Corporation | Control mechanism for touch display apparatus |
| CN106406646A (en) * | 2016-09-19 | 2017-02-15 | 广州视源电子科技股份有限公司 | A TDR scanning type touch screen and a touch scanning locating method |
| CN208298156U (en) * | 2018-06-15 | 2018-12-28 | 深圳市艾博德科技股份有限公司 | A kind of monolayer capacitive touch screen |
-
2018
- 2018-06-15 CN CN201810618917.6A patent/CN108595066A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976162A (en) * | 2010-08-13 | 2011-02-16 | 苏州瀚瑞微电子有限公司 | Monolayer wiring method of capacitive touch screen |
| TW201423531A (en) * | 2012-12-05 | 2014-06-16 | Wintek Corp | Capacitive touch panel |
| US20160117044A1 (en) * | 2014-10-28 | 2016-04-28 | Innolux Corporation | Control mechanism for touch display apparatus |
| CN106406646A (en) * | 2016-09-19 | 2017-02-15 | 广州视源电子科技股份有限公司 | A TDR scanning type touch screen and a touch scanning locating method |
| CN208298156U (en) * | 2018-06-15 | 2018-12-28 | 深圳市艾博德科技股份有限公司 | A kind of monolayer capacitive touch screen |
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