CN102236457A - Touch element - Google Patents
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- CN102236457A CN102236457A CN2010101715319A CN201010171531A CN102236457A CN 102236457 A CN102236457 A CN 102236457A CN 2010101715319 A CN2010101715319 A CN 2010101715319A CN 201010171531 A CN201010171531 A CN 201010171531A CN 102236457 A CN102236457 A CN 102236457A
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- 239000000758 substrate Substances 0.000 claims abstract description 55
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- GRPQBOKWXNIQMF-UHFFFAOYSA-N indium(3+) oxygen(2-) tin(4+) Chemical class [Sn+4].[O-2].[In+3] GRPQBOKWXNIQMF-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a touch control element, which converts a touch control point position into a control signal and comprises: a substrate; the conductive film layer is arranged on the substrate and generates an electrical property change according to the position of the touch point; a plurality of conductive terminals disposed at peripheral corners of the conductive thin film layer and outputting the control signal according to the electrical property variation; and an electrode pattern formed by a plurality of electrode strips and arranged on the conductive film layer, wherein a first electrode strip and a second electrode strip which are positioned at the periphery extend on one side edge between two conductive end points in the plurality of conductive end points. According to the invention, the touch position detection accuracy of the edge of the touch area is improved.
Description
Technical field
The present invention relates to a kind of touch control component, relate in particular to a kind of touch control component with electrode pattern.
Background technology
In recent years, touch technology is widely used in various electronic apparatus as GPS (Global Positioning System, abbreviate GPS as), personal digital assistant (Personal DigitalAssistant abbreviates PDA as), mobile phone etc.In general, the common touch technology that is applied on the touch control component can be divided into resistance-type (Resistive), condenser type (Capacitive) two big classes according to its induction mode, according to the configuration mode difference of conducting wire, the electric resistance touch-control element mainly can be divided into types such as four-wire type, five-line, eight line formulas; And capacitive touch control component can be further has types such as projected capacitive (Projected Capacitive) and surface capacitance type (Surface Capacitive) contact panel according to the difference of principle of work.In addition, according to the difference of using, touch technology can divide into roughly that the transparent touch that is applied on the contact panel is used (as: Touch Screen) and the nontransparent touch-control that is applied on the touch pad is used (as: touch pad on the laptop computer).
Mainly two groups of tin indium oxides (ITO) conductive membrane layer is superimposed up and down for the touch technology of resistance-type, after the pressure that puts on surface in contact by the user makes the upper/lower electrode conducting, predict the change in voltage of contact panel and calculate and draw contacting points position via controller; The projected capacitive touch technology is by on the Different Plane but orthogonal lead forms equally distributed electric field around induction zone, when the touch-control behavior takes place, capacitance between each node and lead will change and produce the touch-control sensing signal, carry out the deciphering of follow-up position of touch afterwards again by touch control controller.On the other hand, the touch technology of surface capacitance type then provides voltage by four corners of the contact area that is positioned at contact panel, form uniform electric field on the surface of contact area, in case user's finger touches when the contact area surface, static reaction between finger and the electric field will cause capacitance variations, and detect contacting points position in view of the above.The difference of using as for transparent and nontransparent touch-control is then whether sensitive surface uses light-transmitting materials and different.
See also Fig. 1 a, it uses the system block diagram of five-line resistive touch plate for contactor control device.The inner utilization tin indium oxide of five-line resistive touch plate forms two conductive layers 111,113 (ITO Film and Glass) up and down, therebetween with a lattice sheet (Dot Spacer) as intercepting, make 111,113 insulation of two conductive layers, in case user's counter plate is in addition during touch-control, two conductive layers 111,113 will produce change in voltage because of short circuit on set four leads of top conductive layer 111 up and down, and the control line that is arranged on lower conducting layer 113 just is used to transmit four voltages that lead produced of top conductive layer 111.
See also Fig. 1 b, it uses the system block diagram of surface capacitance type touch pad for contactor control device.The practice of surface capacitance type touch pad is that four jiaos of ito glass in conduction provide voltage and form uniform electric field, and when human body contact contact panel surperficial, cause the variation of coupling capacitance and subsidiary voltage, and then by the position of the coordinate position judgement touch-control at change in voltage place.
Can learn by Fig. 1 a and Fig. 1 b, no matter the employed touch control component type of contactor control device is resistive touch plate 11 or capacitive type touch pad 12, all be by being arranged on the conduction end points 1a in the peripheral corner of touch pad with user's electrical variation that contact panel produced when touching touch point (as: variation of magnitude of voltage), 1b, 1c, 1d, 1e, 1f, 1g, 1h transmits and controls signal to touch control controller 13, after touch control controller 13 is converted to these control signals that electrically change representative digital format and is sent to host computer system 14, understand the control signal of digital format again via host computer system 14, and the pairing cursor of touch point is shown on the display screen 15.
See also Fig. 2 a, it is the desirable pressurization equipotential line distribution plan of contact panel.Explanation according to the 6th, 781, No. 579 patents of the U.S. can learn, the practice that electrode is set by the edge at touch pad can provide the linearity of touch pad when corresponding touch point position.
See also Fig. 2 b, it utilizes electrode pattern touch pad synoptic diagram for prior art.The practice of even now allows most zones of touch pad reach the effect of linear track correspondence, but such configuration still has the restriction on the function.
See also Fig. 2 c, it uses the trajectory synoptic diagram of the touch point position correspondence of capacitive type touch pad for prior art.In the time of can finding that by Fig. 2 c the pairing track of touch point of capacitive type touch pad 12 is the center of capacitive type touch pad 12 in the touch point position, the pairing track variation of touch point no doubt presents linear relationship, if but the touch point position of user institute touch-control is when the edge of capacitive type touch pad 12, touch point the corresponding track that produces but can produce crooked phenomenon.
In other words, if the position of user's touch-control is near I, II, III, IV side regional the time, the correspondence position of touch point position when being presented on display screen 15 through touch control controller 13 with host computer system 14 is with the situation that is distorted, and similar problem also is present on the resistive touch plate 11.
Although current touch technology can provide user's position of touch detection quite accurately effect, but if the position of the actual touch-control of user is when the edge of sensing region, but often because touch pad allows the sensing effect of touch pad have a greatly reduced quality in the touch trajectory line at edge and nonlinear relation.
Summary of the invention
At problems of the prior art, the objective of the invention is to improve the position of touch detection precision of prior art about the edge, touch area, the phase can be developed comparatively accurate touch control component.
An aspect of of the present present invention is a touch control component, and a touch point position is converted to a control signal, and this touch control component comprises: a substrate; One conductive membrane layer is arranged on this substrate, and it produces one according to this touch point position and electrically changes; A plurality of conduction end points are arranged on the peripheral corner of this conductive membrane layer, and it is according to should electrically changing and corresponding this control signal of output; And an electrode pattern, constituted and be arranged on this conductive membrane layer by a plurality of electrode strip, wherein be arranged in one first peripheral electrode strip and one second electrode strip and extend on two sides that conduct electricity between end points by these a plurality of conduction end points.
Another aspect of the invention is a touch control component, a touch point position is converted to a control signal, this touch control component comprises: a substrate; One conductive membrane layer is arranged on this substrate, and it produces one according to this touch point position and electrically changes; A plurality of conduction end points are arranged on the peripheral corner of this conductive membrane layer, and it is according to should electrically changing and corresponding this control signal of output; And an electrode pattern, constituted and be arranged at this substrate and this conductive film interlayer by a plurality of electrode strip, wherein be arranged in one first peripheral electrode strip and one second electrode strip and extend on two sides that conduct electricity between end points by these a plurality of conduction end points.
Of the present invention is a touch control component more on the one hand, and a touch point position is converted to a control signal, and this touch control component comprises: a substrate, have conductive characteristic, and it produces one according to this touch point position and electrically changes; A plurality of conduction end points are arranged on the peripheral corner of this substrate, and it is according to should electrically changing and corresponding this control signal of output; And an electrode pattern, constituted and be arranged on this substrate by a plurality of electrode strip, wherein be arranged in one first peripheral electrode strip and one second electrode strip and extend on two sides that conduct electricity between end points by these a plurality of conduction end points.
Beneficial effect of the present invention is that the present invention has improved the position of touch detection precision of prior art about the edge, touch area, and comparatively accurate touch control component is provided.Touch control component of the present invention is applied to contact panel or touch pad, the touch point position of touch control controller on corresponding touch control component is during with its corresponding track, even the touch point position is the touch area that is positioned at the touch control component edge, touch control component still can keep the linear relationship of its track correspondence.And the present invention is used for improving the way of touch control component and the process compatible of original touch control component, does not therefore need additionally to use complicated step just can improve existing problem.
Description of drawings
Fig. 1 a, it uses the system block diagram of five-line resistive touch plate for contactor control device.
Fig. 1 b, it uses the system block diagram of surface capacitance type touch pad for contactor control device.
Fig. 2 a, it is the desirable pressurization equipotential line distribution plan of contact panel.
Fig. 2 b, it utilizes electrode pattern touch pad synoptic diagram for prior art.
Fig. 2 c, it uses the trajectory synoptic diagram of the touch point position correspondence of capacitive type touch pad for prior art.
Fig. 3 a, Fig. 3 b, Fig. 3 c and Fig. 3 d, it is applied to the synoptic diagram of the electrode pattern on the touch pad for preferred embodiment of the present invention.
Fig. 4 a, Fig. 4 b, it is the diagrammatic cross-section of preferred embodiment of the present invention first type.
Fig. 5 a, Fig. 5 b, it is the diagrammatic cross-section of preferred embodiment of the present invention second type.
Fig. 6, it is the diagrammatic cross-section of the preferred embodiment of the third type of the present invention.
Fig. 7 a, it is for being applied to touch control component of the present invention the synoptic diagram of rectangular touch element.
Fig. 7 b, it is the synoptic diagram with electrode strip disposed adjacent mode of the present invention.
Fig. 7 c, it is with the synoptic diagram of electrode strip of the present invention with conduction end points disposed adjacent mode.
Fig. 7 d, it is the pairing track line chart of touch pad of the present invention.
Fig. 8, it is for being applied to touch control component of the present invention the synoptic diagram of circular touch control component.
Fig. 9, it is for being applied to touch control component of the present invention the synoptic diagram of triangle touch control component.
Wherein, description of reference numerals is as follows:
111,113 conductive layers
1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 303a, 303b, 303c, 303d, 403,503,603,731 conduction end points
11 resistive touch plates
12 capacitive type touch pads
13 touch control controllers
14 host computer systems
15 display screens
305a, 305b, 305c, 305d lead
306a, 306b, the external end points of 306c, 306d
304,404,504,604,804,904 electrode patterns
3041a, 3041b, 3042a, 3042b 3043a, 3043b, 3044a, 3044b, 721,722,732 electrode strips
300,400,500,600 touch control components
401,501,601 substrates
402,502 conductive membrane layers
701a, 801a, the 901a first conduction end points
701b, 801b, the 901b second conduction end points
701c, 801c, 901c the 3rd conduction end points
701d, 801d the 4th conduction end points
70 rectangular touch elements
The I first side
711,811,911 first electrode strips
712,812,912 second electrode strips
The II second side
713,813,913 third electrode bars
714,814,914 the 4th electrode strips
III the 3rd side
715,815,915 the 5th electrode strips
716,816,916 the 6th electrode strips
The IV four side
717, the 817, the 7th electrode strip
718, the 818, the 8th electrode strip
The 72a first electrode strip group disposed adjacent
The 72b second electrode strip group disposed adjacent
72c third electrode bar group disposed adjacent
The disposed adjacent of 73a, 73b, 73c electrode strip and conduction end points
80 circular touch control components
90 triangle touch control components
Embodiment
Can't provide the problem of linear corresponding relation at the trajectory of the avris of contact panel in order to improve prior art, the present invention proposes a kind of practice of the peripheral configured electrodes pattern at touch control component (contact panel/touch pad), by substrate and conductive membrane contact panel around formed connect and parallel resistance effect of electrode pattern with contact panel/touch pad, when contact panel/touch pad is subjected to voltage detecting, just can forms even equipotential line and distribute.Thus, when human body or conducting objects near or when touching at contact panel/touchpad surface, the variation that forms capacitance is changed with the curtage of being followed, touch control component these are electrically changed convert digital format to after, again by the corresponding actual occurrence positions that goes out touch point of touch control controller with the calculating of host computer system.
See also Fig. 3 a-Fig. 3 d, it is applied to the synoptic diagram of the electrode pattern on the touch pad for preferred embodiment of the present invention.In Fig. 3 a, conduction end points 303a, 303b, 303c, 303d is by lead 305a, 305b, 305c, 305d is during with user's touch-control, the voltage/currents that touch control component 300 produced etc. electrically variation are conducted on the touch control controller, and electrode pattern 304 is made of a plurality of electrode, and in these electrodes, it is with electrode strip 3041a that the electrode of part is arranged, 3041b, 3042a, 3042b, 3043a, 3043b, 3044a, the mode of 3044b is set at conducts electricity end points 303a/303d in twos, 303a/303b, 303b/303c, between 303c/303d on the formed side.
Further, in a plurality of electrodes that constitute electrode pattern 304, electrode strip 3041a, 3041b are set on the outer side edges of conducting electricity between end points 303a, the 303d; Electrode strip 3042a, 3042b are set on the outer side edges of conducting electricity between end points 303a, the 303b; Electrode strip 3043a, 3043b are set on the outer side edges of conducting electricity between end points 303b, the 303c; Electrode strip 3044a, 3044b then are set on the outer side edges of conducting electricity between end points 303c, the 303d.
The practice of similar Fig. 3 a also is used among Fig. 3 b, Fig. 3 c and Fig. 3 d, although electrode pattern configuration inboard among each figure is not quite similar with arrangement mode, but its common ground is to be provided with two microscler electrode strip 3041a/3041b, 3042a/3042b, 3043a/3043b, 3044a/3044b on four outer side edges of touch control component 300 respectively, improves the touch trajectory nonlinear problem of touch pad when the edge by these electrode strip 3041a, 3041b, 3042a, 3042b, 3043a, 3043b, 3044a, 3044b that are arranged on side.
Be noted that, when the signal with each conduction end points 303a, 303b, 303c, 303d picks out to touch control controller, no doubt can be shown in Fig. 3 a-Fig. 3 d, utilization is arranged at lead 305a, 305b, 305c, the 305d on the substrate, and the signal that conduction end points 303a, 303b, 303c, 303d are produced is sent on external end points 306a, 306b, 306c, the 306d; In addition on the one hand, can also directly utilize the lead of external mode will conduct electricity the voltage change signal that end points 303a, 303b, 303c, 303d produced and be sent to touch control controller, that is, utilize mode that routing pulls out to extend and finish lead from conducting electricity end points 303a, 303b, 303c, 303d, but not with conductor configurations on the body of touch control component 300.
Moreover, to conduct electricity signal that end points 303a, 303b, 303c, 303d produced when being sent to the practice on external end points 306a, 306b, 306c, the 306d if adopt, the length and width of each lead 305a, 305b, 305c, 305d and spacing dimension can be according to size, the length breadth ratios of touch control component, and respectively conduct electricity the parameters such as impedance factor of end points 303a, 303b, 303c, 303d and conductive membrane layer and make optimal design.
For instance, because lead 305a, 305b, 305c, the length of 305d and width may influence conduction end points 303a, 303b, 303c, 303d is to external end points 306a, 306b, 306c, resistance value between 306d, therefore at planning lead 305a, 305b, 305c, during 305d, each conducts electricity end points and 303a, 303b, 303c, 303d and each external end points 306a, 306b, 306c, when the resistance value between the 306d is consistent as if needs, just can be with regard to lead 305a, 305b, 305c, the length and width of 305d and external form etc. are changed, and then reach and allow each lead 305a, 305b, 305c, the resistance value of 305d can consistent purpose.
With Fig. 3 b and Fig. 3 d is example, as can be seen from Figure, by the external end points 306a of distance, 306b, 306c, the conduction end points 303b that 306d is far away, the lead 305b that 303c picked out, the width of 305c compared to by the distance external end points 306a, 306b, 306c, the nearer conduction end points of 306d 303a, the lead 305a that 303d picked out, the width of 305d comes widely, this is because the former is the external end points 306a corresponding with it, the distance of 306d is far away, if use the lead 305a of same widths, 305b, 305c, during 305d, lead 305a, the resistance of 305d will be than lead 305b, 305c is lower.
Except different and to having the thinner width of more short- range lead 305a, 305d use according to the distance of conduction end points 303a, 303b, 303c, 303d and external end points 306a, 306b, 306c, 306d, and lead 305b, the 305c with longer distance used outside the width of broad, other modes of adjusting resistance values also may be utilized.For instance, the practice shown in Fig. 3 c, with the length of the mode extension lead 305a, the 305d that unroll and strengthen these leads 305a, the pairing resistance value of 305d, also can reach equally thus and allow each lead 305a, the 305b, 305c, the 305d that respectively conduct electricity between end points 303a, 303b, 303c, 303d and each external end points 306a, 303b, 306c, 306d can both have the purpose of same resistance value.
As a rule, spacing in the technology between selected conduction end points 303a, 303b, 303c, 303d and electrode strip 3041a, 3041b, 3042a, 3042b, 3043a, 3043b, 3044a, the 3044b, and the spacing between electrode strip 3041a/3041b, 3042a/3042b, 3043a/3043b, the 3044a/3044b is about several millimeters in twos, several in other words millimeter (for example: with one millimeter or two millimeters as spacing), certainly, these spacings selected can be according to the characteristic of size, external form and each layer material of touch control component in addition elasticity select.
Be noted that, with electrode strip 3041a/3041b, 3042a/3042b, 3043a/3043b, 3044a/3044b is arranged in four conduction end points 303a respectively, 303b, 303c, the formed side of 303d is not represented electrode strip 3041a/3041b, 3042a/3042b, 3043a/3043b, the tangent line of 3044a/3044b must with conduction end points 303a, 303b, 303c, the 303d alignment, and can be with electrode strip 3041a/3041b, 3042a/3042b, 3043a/3043b, the position of 3044a/3044b is arranged on conduction end points 303a, 303b, 303c, line between 303d and the interior adjustment of scope by a small margin before and after it, that is, with regard on the macroscopic view of whole touch control component, electrode strip 3041a/3041b, 3042a/3042b, 3043a/3043b, the position that is provided with of 3044a/3044b is near conduction end points 303a, 303b, 303c, the formed side of 303d.
See also Fig. 4 a and Fig. 4 b, it is the diagrammatic cross-section of preferred embodiment of the present invention first type.The present invention is applied to the touch point position is converted on the touch control component 400 of control signal, and touch control component 400 comprises: substrate 401; Conductive membrane layer 402 is arranged on the substrate 401, and it produces electrical variation according to the touch point position; A plurality of conduction end points 403 are arranged on the peripheral corner of conductive membrane layer 402, and it is according to electrical variation that conductive membrane layer 402 produced and corresponding output control signal; And constituted and be arranged at electrode pattern 404 on the conductive membrane layer 402 by a plurality of electrode strip, in electrode pattern 404, be arranged in the first peripheral electrode strip and second electrode strip and extend by a plurality of conduction end points 403 two and conduct electricity on the side of 403 of end points.
When practical application, as long as can allow the electrical variation on the touch control component 400 have the equal proportion relation and the touch point location is calculated, therefore shown in Fig. 4 a and Fig. 4 b, finish relevant design in can the arrange in pairs or groups variation of technology of the conductive membrane layer 402 and the configuration of electrode pattern of touch control component periphery.
Be noted that the sectional view of Fig. 4 a and Fig. 4 b is meant to comprise and conducts electricity the tangent plane of end points 403, can see that therefore respectively conducting electricity end points 403 links to each other with film conductive layer 402, substrate 401 simultaneously; Conduct electricity the situation of end points 403 to not containing, its sectional view is roughly similar with Fig. 4 a and Fig. 4 b, but the part accompanying drawing at the conduction end points then makes lead into, and lead just can not link to each other with film conductive layer 402, substrate 401 simultaneously, but simple be arranged on the substrate 401 and separating out with film conductive layer 402.
With Fig. 4 a is example, and employed a plurality of electrodes are because have preferable electric conductivity, and the relatively poor conductive membrane layer 402 of the conductive effect of therefore can arranging in pairs or groups forms the gap of equal proportion; Can utilize modes such as laser or etching to finish conductive membrane layer 402 as for the practice of Fig. 4 b with gap, the touch control component that utilizes this mode to finish, because the electric conductivity of the section of conductive membrane layer continuum is preferable, and the regional electric conductivity that conductive membrane layer 402 interrupts is relatively poor, and can reach the effect of similar Fig. 4 a.In sum, conductive membrane layer 402 can plated film or etched technology be formed at substrate 401 tops continuously or discontinuity zone.For nontransparent application such as touch pads, conductive membrane layer 402 can be the carbon film that utilizes mode of printing to finish, and the position of its printing also can be printed on the zones of different on the substrate 401 as required.
See also Fig. 5 a and Fig. 5 b, it is the diagrammatic cross-section of preferred embodiment of the present invention second type.In this preferred embodiment, touch control component 500 is that the occurrence positions with touch point is converted into control signal equally, different with first type preferred embodiment is, the touch control component 500 of this type is in manufacture process, be not the top that electrode pattern is arranged on conductive membrane layer, but electrode pattern 504 be arranged at the centre of substrate 501 and conductive membrane layer 502.
The touch control component 500 of this type comprises: substrate 501; Conductive membrane layer 502 be arranged on the substrate 501, and conductive membrane layer 502 produces electrical variation according to the touch point position; A plurality of conduction end points 503 are arranged on the peripheral corner of conductive membrane layer, and correspondence outputs control signals on the touch control controller these conduction end points 503 according to electrically changing; And by electrode pattern 504 that a plurality of electrode strip constituted, electrode pattern 504 is set between substrate 501 and the conductive membrane layer 502, wherein is arranged in the first peripheral electrode strip and second electrode strip and extends by on the side between two conduction end points of a plurality of conduction end points 503.
Similar as Fig. 4 a and Fig. 4 b, the conductive membrane layer 502 of Fig. 5 a and Fig. 5 b can also printing, the mode of etching or plated film covers on the substrate 501 that is provided with electrode pattern 504, and the difference of Fig. 5 a and Fig. 5 b is, the former utilizes conductive membrane layer 502 different with the impedance of electrode and form the change in voltage of equal proportion, and the latter then utilizes the whether continuous change in voltage that forms equal proportion of conductive membrane layer 502.
Same, the sectional view of Fig. 5 a and Fig. 5 b is meant to comprise and conduct electricity the tangent plane of end points 503, therefore respectively conducts electricity 503 whiles of end points to link to each other with film conductive layer 502, substrate 501; Conduct electricity the sectional view of end points 503 concerning not containing, conduction end points 503 in its sectional view will be replaced by lead, and lead just can not link to each other with film conductive layer 502, substrate 501 simultaneously, but simple being arranged on the substrate 501, and separates with film conductive layer 502.
Be noted that described sectional view is only represented the situation of piling up of a section on the touch control component, but because the configuration of layers of material or gapped, therefore the sectional view of same touch control component may have different because the configured length of electrode is different with arrangement.In other words, the electrode pattern of Fig. 4 a and Fig. 4 b and Fig. 5 a and Fig. 5 b is not to be arranged on substrate or the conductive membrane layer in the mode around touch control component, and can be formed thereon with interval mode.
See also Fig. 6, it is the diagrammatic cross-section of the preferred embodiment of the third type of the present invention.Same, the preferred embodiment of this type also is the touch control component 600 that the touch point position is converted to control signal, precisely because the features different with preceding two types preferred embodiment are, the preferred embodiment of this type does not use conductive membrane layer to produce electrical variation, but utilization has the substrate 601 of conductive characteristic produces correspondence according to the position of touch point electrical variation.
The touch control component that preferred embodiment provided 600 of the third type of the present invention comprises: have the substrate 601 of conductive characteristic, herein substrate 601 can produce electrical variation according to the touch point position because having conductive characteristic; A plurality of conduction end points 603 are arranged on the peripheral corner of substrate 601, and it is according to electrically changing and corresponding output control signal; And electrode pattern 604, constituted and be arranged on the substrate 601 by a plurality of electrode strip, wherein be arranged in the first peripheral electrode strip and second electrode strip and extend on two sides that conduct electricity between end points by a plurality of conduction end points 603.
Because the employed substrate 601 of preferred embodiment of the third type has conductive characteristic, therefore when collocation has the formed electrode pattern 604 in gap, the voltage drop relation of equal proportion can be provided equally, and then draw the occurrence positions of touch point.
Different based on technologic application, each layer structure in the preferred embodiment of above-mentioned several types different material of can arranging in pairs or groups is realized, with substrate 401,501,601 is example, except using insulation material or conductive material to form the substrate, the use of substrate 401,501,601 also visual application needs and use nontransparent substrate or transparency carrier to finish, wherein the former is applicable to touch pad, and the latter can utilize the use of glass or other materials collocation screen, with transparent way touch controllable function is additional on the screen display.
Moreover conductive membrane layer 402,502 can select for use transparent electrically-conductive film layers such as indium tin oxide ITO or other electrically conducting transparent things TCO to finish when practical application, or utilizes nontransparent conducting objects such as carbon film to finish nontransparent conductive membrane layer.In manufacture process, conductive membrane layer 402,502 can utilize the mode of plated film, etching or printing to be covered on the insulated substrate, and the mode that covers can also be selected to be covered on the insulated substrate in the mode of comprehensive covering, or only covers the interior region of insulated substrate.
No matter be above-mentioned any preferred embodiment; its touch control component that completes can also be coated with protective seam in its surface; strengthen its structure by protective seam, and the barriering effect to structure such as the substrate 401,501,601 of lower floor and conductive membrane layer 402,502 and external environment is provided.
In sum, the practice of the side of configuration two electrode strips proposed by the invention between the conduction end points can directly be applied to Thin Film Transistor-LCD (Thin-Film Transistor Liquid-CrystalDisplay, abbreviate TFT-LCD as) technology in, therefore can't produce negative influence to the manufacture process of display element and can be incorporated into easily in original technology.
Moreover, a plurality of electrode strips mode adjacent one another are of formation electrode pattern can exist spacing mutually or constitute in interconnective mode, and the conduction end points not only can be identical with the employed material and technology of electrode strip, and can link to each other or separate between conduction end points and the electrode strip, promptly, the conduction end points can be extended and link to each other with electrode strip, or independent separately the setting.
In order to improve the non-linear phenomena of existing contact panel or the touch pad position of touch when the edge corresponding to trajectory, the present invention proposes to utilize in the touch pad periphery,, the practice of the electrode pattern that two electrode strips are constituted is set on the side between the conduction end points that is.
See also Fig. 7 a, it is for being applied to touch control component of the present invention the synoptic diagram of rectangular touch element.Square type touch control component 70 among Fig. 7 a by first corner, second corner, third angle falls and the 4th corner is constituted, each corner in rectangular touch element 70 is equipped with the conduction end points, that is, be provided with the first conduction end points 701a, second corner in first corner and be provided with that the second conduction end points 701b, third angle fall to being provided with the 3rd conduction end points 701c, the 4th corner is provided with the 4th conduction end points 701d.
Cooperate Fig. 7 a to find, the practice of the present invention is that the first side I between the first conduction end points 701a and the second conduction end points 701b is provided with first electrode strip 711 and second electrode strip 712; Second side II between the second conduction end points 701b and the 3rd conduction end points 701c is provided with third electrode bar 713 and the 4th electrode strip 714; The 3rd side III between the 3rd conduction end points 701c and the 4th conduction end points 701d is provided with the 5th electrode strip 715 and the 6th electrode strip 716; Four side IV between the 4th conduction end points 701d and the first conduction end points 701a is provided with the 7th electrode strip 717 and the 8th electrode strip 718.
According to the above-mentioned electrode strip in pairs 711/712,713/714,715/716,717/718 that extends each side, promptly, extend first electrode strip 711 and second electrode strip 712 on the I of first side, extend third electrode bar 713 and the 4th electrode strip 714 on the II of second side, extend the 5th electrode strip 715 and the 6th electrode strip 716 on the 3rd side III, and extending the 7th electrode strip 717 and the 8th electrode strip 718 on the four side IV, the trajectory diagram of then using touch control component of the present invention just is unlikely to the phenomenon that is distorted at each side.
Certainly, on behalf of the present invention, Fig. 7 a utilize two electrode strips to be arranged on the conception of each electrode strip position and arrangement mode, promptly, the trajectory of side with touch control component of above-mentioned relative position relation does not just have crooked phenomenon, when not representing practical application, the position of each electrode strip and each conduction end points, shape etc. must be in full accord with Fig. 7 a.
In fact, in the adjacent position configuration each other of the electrode strip of planning on the touch control component, and the adjacent position between electrode strip and the conduction end points etc. is when disposing, and the adjacent patterns of its thin portion all can have different variations with arrangement mode.
See also Fig. 7 b, it is the synoptic diagram with electrode strip disposed adjacent mode of the present invention.The present invention provides the electrode strip disposed adjacent of preferred embodiments such as the first electrode strip group disposed adjacent 72a, the second electrode strip group disposed adjacent 72b, third electrode bar group disposed adjacent 72c at this, does not need to be limited so as to the adjacent mode that electrode strip is described.
In other words; spacing between electrode strip 721 and the electrode strip 722 no doubt can be shown in the first electrode strip group disposed adjacent 72a; be arranged on the same line and exist with the form of interrupting; or shown in the second electrode strip group disposed adjacent 72b and third electrode bar group disposed adjacent 72c; change a little at the end of two electrode strips, 721,722 adjacents one of them electrode strip 721,722; or even the variation on other patterns etc., all can be contained by protection scope of the present invention.
See also Fig. 7 c, it is with the synoptic diagram of electrode strip of the present invention with conduction end points disposed adjacent mode.And the disposed adjacent between the former electrodes bar is similar, electrode strip 732 among the present invention can be quite polynary with the disposed adjacent of conduction end points 731, the present invention only enumerates disposed adjacent 73a, 73b, the 73c of three kinds of electrode strips 732 and conduction end points 731 at this, but during practical application, do not need to be defined and use these disposed adjacent and can be changed relative position and arrangement mode between conduction end points 731 and the electrode strip 732 arbitrarily.
See also Fig. 7 d, it is the pairing track line chart of touch pad of the present invention.By Fig. 7 d as can be seen the touch point position when the first side of rectangular touch element 70 I, second side II, the 3rd side III and the four side IV, the situation that its track correspondence can't bend as Fig. 2 c.
In other words, no matter rectangular touch element 70 is applied to contact panel or touch pad, the touch point position of touch control controller on corresponding rectangular touch element 70 is during with its corresponding track, even the touch point position is the touch area that is positioned at the touch control component edge, rectangular touch element 70 still can keep the linear relationship of its track correspondence.Be noted that although above-mentioned track line chart with rectangular touch element 70 as an illustration, similarly the practice can be applied on the touch control component of difformity (as: triangle, circle or various polygon).
See also Fig. 8, it is for being applied to touch control component of the present invention the synoptic diagram of circular touch control component.The circular touch control component 80 of Fig. 8 is chosen the conduction end points and is formed quartern spacing in the side of circular touch control component 80, that is, on circular touch control component 80, choose the first conduction end points 801a, the second conduction end points 801b, the 3rd conduction end points 801c, the 4th conduction end points 801d in the equal proportion mode.
Similar with the aforementioned practice, at the first conduction end points 801a of Fig. 8 and the first side I between the second conduction end points 801b first electrode strip 811 and second electrode strip 812 are set; Second side II between the second conduction end points 801b and the 3rd conduction end points 801c is provided with third electrode bar 813 and the 4th electrode strip 814; The 3rd side III between the 3rd conduction end points 801c and the 4th conduction end points 801d is provided with the 5th electrode strip 815 and the 6th electrode strip 816; Four side IV between the 4th conduction end points 801d and the first conduction end points 801a is provided with the 7th electrode strip 817 and the 8th electrode strip 818, then intersperses among the periphery of circular touch control component 80 as for other electrodes that constitute electrode pattern 804.
See also Fig. 9, it is for being applied to touch control component of the present invention the synoptic diagram of triangle contact panel/touch pad.In this preferred embodiment, the first conduction end points 901a, the second conduction end points 901b and the 3rd conduction end points 901c are disposed at three angles of triangle touch control component 90 respectively.Except three sides at triangle touch control component 90 are provided with the electrode pattern 904, between the first conduction end points 901a and the second conduction end points 901b, dispose first electrode strip 911 and second electrode strip 912, and between the second conduction end points 901b and the 3rd conduction end points 901c, and the 3rd conduction end points 901c conduct electricity and then to have disposed third electrode bar 913 and the 4th electrode strip 914 respectively between the end points 901a with first, and the 5th electrode strip 915 and the 6th electrode strip 916.
In sum, the present invention is used for improving the way of touch control component and the process compatible of original touch control component, does not therefore need additionally to use complicated step just can improve existing problem, can be described as quite practical invention.Though the present invention has disclosed as above-mentioned preferred embodiment; right its is not in order to limit the present invention; those skilled in the art should recognize change and the retouching of being done under the situation that does not break away from the appended scope and spirit of the present invention that claim disclosed of the present invention, all belong within the protection domain of claim of the present invention.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101715319A CN102236457A (en) | 2010-04-28 | 2010-04-28 | Touch element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101715319A CN102236457A (en) | 2010-04-28 | 2010-04-28 | Touch element |
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| CN102236457A true CN102236457A (en) | 2011-11-09 |
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| CN109409166A (en) * | 2017-08-16 | 2019-03-01 | 奕力科技股份有限公司 | Sensor and manufacturing method thereof |
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Application publication date: 20111109 |