CN202904518U - Temperature sensing type touch panel - Google Patents
Temperature sensing type touch panel Download PDFInfo
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- CN202904518U CN202904518U CN 201220375882 CN201220375882U CN202904518U CN 202904518 U CN202904518 U CN 202904518U CN 201220375882 CN201220375882 CN 201220375882 CN 201220375882 U CN201220375882 U CN 201220375882U CN 202904518 U CN202904518 U CN 202904518U
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Abstract
The utility model provides a temperature sensing type touch panel which comprises a base plate and sensing layers arranged on the base plate. The sensing layers comprise temperature sensing blocks and wires. The temperature sensing blocks are made by temperature sensitive materials and arranged on the base plate. The wires are arranged on the base plate and electrically connected with the temperature sensing blocks. If the temperature sensing type touch panel is touched by a finger or a special hot stylus, resistance of the temperature sensing blocks generate corresponding changes, and consequently output signals when the temperature sensing type touch panel is touched by the finger or the special hot stylus are different from signals the temperature sensing type touch panel is not touched, and eventually touched position can be located. Due to the fact that the temperature sensing type touch panel can locate the touched position according to temperature changing of the temperature sensing blocks, not only can conductive objects be detected, but also the touched position of non-conductive objects can be detected.
Description
Technical field
The utility model relates to the touch technology field, relates in particular to a kind of temperature induction type contact panel.
Background technology
Contact panel (Touch Panel) applies on the electronic products such as consumption, communication, computer in a large number, and such as now widely used game machine, wisdom mobile phone, panel computer etc. is as the input interface of numerous electronic products.The display part of these electronic products generally all is to be integrated by contact panel and display panel to form, be available for users to click the action that input will be carried out with finger or pointer according to the function choosing-item in the display frame, by this can need not the input media of other traditional types (as, button, keyboard or control lever) operation is lower inputs, and has improved greatly the convenience of inputting.
At present the principle of work of the normal capacitor induction type contact panel that adopts of institute is the capacitance variations of utilizing the transparency electrode of arranging and the electrostatical binding between the human body to produce, thereby the induced current of generation detects the coordinate of its touch location.Because the capacitor induction type contact panel all has obvious advantage aspect accuracy rate, reaction time and serviceable life, so at present a large amount of employings.
Yet, because the touch-control principle of capacitor induction type can only be detected the touch location of conductive body on contact panel, and can not detect the touch location of non-conductive object on contact panel.
The utility model content
Based on this, be necessary to provide a kind of temperature induction type contact panel, detect touch location by the temperature variation of warming piece, can detect conductive body and also can detect the touch location of non-conductive object on contact panel.
A kind of temperature induction type contact panel comprises substrate and is arranged on sensed layer on the described substrate, and wherein, described sensed layer comprises: the warming piece, and described warming piece is made and is arranged on the described substrate by thermo-sensitive material; And wire, described wire is arranged on the described substrate and is electrically connected at described warming piece.
Further, described warming piece comprises plural number the first axial warming piece and plural number the second axial warming piece that is interspersed, and mutually insulated between the described plural first axial warming piece and plural number the second axial warming piece.
Further, the described first axial warming piece and the second axial warming piece are positioned at the both sides of described substrate and pass through described substrate mutually insulated.
Further, described substrate comprises a first substrate and a second substrate, the described first axial warming piece is laid in the lower surface of described first substrate, the described second axial warming piece is laid in the lower surface of described second substrate, and described second substrate is between the described first axial warming piece and the described second axial warming piece.
Further, also comprise insulation course, the described first axial warming piece is laid on the described substrate, and the described second axial warming piece is laid on the described insulation course, and described insulation course is arranged between the described first axial warming piece and the described second axial warming piece.
Further, described substrate comprises a first substrate and a second substrate, the described first axial warming piece is arranged at the lower surface of described first substrate, the described second axial warming piece is arranged at the upper surface of described second substrate, is formed with a closed gas layer between the lower surface of described first substrate and the upper surface of described second substrate and separates insulating between the described plural first axial warming piece and the described plural second axial warming piece.
Further, described warming piece comprise be arranged at described substrate the same lip-deep plural first axial warming piece and the plural number the second axial warming piece, described wire comprises the first axial lead and plural the second axial lead that is parallel to each other that plural number is parallel to each other, and described sensed layer also comprises the plural insulating spacer that is arranged on described the first axial lead; The described first axial warming piece is arranged at described insulating spacer bilateral, and by described the first axial lead serial connection, the described second axial warming piece described the first axial lead bilateral that is placed in, described the second axial lead is across on the described insulating spacer and is connected in series the described second axial warming piece.
Further, described substrate is a cover plate.
Further, described wire input lead and output lead, each warming piece all is electrically connected with corresponding input lead and output lead.
Further, comprise that also being arranged on avoiding on this sensed layer touches object produces capacity effect to this sensed layer screen layer.
Further, wherein said warming piece monoblock is for by transparent or that non-transparent material is made is laminar.
Further, described warming piece is by at poly-ethylenedioxy thiophene: the doping adulterant is made in poly-(p styrene sulfonic acid) root negative ion.
Further, wherein said adulterant is one or more in sorbierite, ethylene glycol, 1-METHYLPYRROLIDONE, the carbon nano-tube.
Above-mentioned temperature induction type contact panel, if have finger or special-purpose hot pointer to touch contact panel, corresponding variation can occur in the resistance of warming piece, thereby so that output signal is pointed or special-purpose hot pointer is different from when touching when not being touched at contact panel, finally can determine the position that touches.The definite position that touches of temperature variation according to the warming piece of temperature induction type contact panel can be detected conductive body and also can detect non-conductive object at the touch location of contact panel.
Description of drawings
Fig. 1 a is the temperature induction type contact panel Facad structure synoptic diagram of the first embodiment;
Fig. 1 b is the temperature induction type contact panel diagrammatic cross-section that Fig. 1 a embodiment illustrates along profile line I-I ';
Fig. 1 c is the temperature induction type contact panel diagrammatic cross-section of the second embodiment;
Fig. 2 a is the temperature induction type contact panel Facad structure synoptic diagram of the 3rd embodiment;
Fig. 2 b is the temperature induction type contact panel diagrammatic cross-section that Fig. 2 a embodiment illustrates along profile line A-A ';
Fig. 2 c is the temperature induction type contact panel diagrammatic cross-section of the 4th embodiment;
Fig. 3 a is the temperature induction type contact panel Facad structure synoptic diagram of the 5th embodiment;
Fig. 3 b is the temperature induction type contact panel diagrammatic cross-section that Fig. 3 a embodiment illustrates along dotted line B-B ';
Fig. 3 c is the temperature induction type contact panel cross-sectional view of the 6th embodiment;
Fig. 4 a is the temperature induction type contact panel cross-sectional view of the 7th embodiment;
Fig. 4 b is the temperature induction type contact panel cross-sectional view of the 8th embodiment;
Fig. 5 is the temperature induction type contact panel cross-sectional view of the 9th embodiment;
Fig. 6 is the temperature induction type contact panel side structure synoptic diagram of the tenth embodiment;
Fig. 7 is the temperature induction type contact panel side structure synoptic diagram of the 11 embodiment; And
Fig. 8 is the process flow diagram of the method for detecting of the utility model embodiment temperature induction type contact panel.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Below embodiment a kind of temperature induction type contact panel is provided, comprise substrate and be arranged on sensed layer on the substrate.Sensed layer is arranged on the substrate, can be that whole sensed layer is arranged on the substrate, also can be that the sensed layer of part is arranged on the substrate (for example, another part can be arranged on insulation course first-class).Sensed layer comprises warming piece and wire.The warming piece is made and is arranged on by thermo-sensitive material on the described substrate, and wire is arranged on the described substrate and is electrically connected at described warming piece.
If have finger or special-purpose hot pointer to touch contact panel, corresponding variation can occur in the resistance of warming piece, thereby so that output signal is pointed or special-purpose hot pointer is different from when touching when not being touched at contact panel, finally can determine the position that touches.The temperature induction type contact panel can be detected conductive body and also can detect non-conductive object at the touch location of contact panel according to the definite position that touches of the temperature variation of warming piece.Below will introduce in detail the concrete structure of the temperature induction type contact panel of each embodiment of the utility model.
Fig. 1 a is the temperature induction type contact panel Facad structure synoptic diagram of the first embodiment.Fig. 1 b is the temperature induction type contact panel diagrammatic cross-section that Fig. 1 a embodiment illustrates along profile line I-I '.Shown in Fig. 1 a and Fig. 1 b, the temperature induction type contact panel 100 that present embodiment provides comprises substrate 110 and is arranged on sensed layer 120 on the described substrate 110.
Sensed layer 120 comprises warming piece 122 and wire 124.Warming piece 122 is made by thermo-sensitive material and is arranged on the described substrate 110 with the array format distribution.Wire 124 is arranged on the described substrate 110 and is electrically connected at described warming piece 122, and wherein wire 124 comprises input lead 124a and output lead 124b.Input lead 124a is used for input drive signal, and output lead 124b is used for the output sensing signal.Each warming piece 122 connects an input lead 124a and an input lead 124b at least.In addition, wire 124 also is electrically connected described warming piece 122 with the controller (not shown), and the signal that wire 124 transmission warming pieces 122 produce is to controller, and the computing by controller draws touch position coordinates.
Above-mentioned temperature induction type contact panel 100 is when work, at first by input lead 124a input drive signal, driving is arranged on the warming piece 122 on the substrate 110, detect again the output signal of the output lead 124b that is connected to described warming piece 122, then judge according to output signal whether occurrence temperature changes described warming piece 122, and the position of the warming piece 122 that the output occurrence temperature changes is touch location.Because warming piece 122 adopts the thermo-sensitive material with high temperature coefficient of resistance to make, if have finger or special-purpose hot pointer to touch temperature induction type contact panel 100, corresponding variation can occur in the resistance of warming piece 122, thereby so that output signal pointed or special-purpose hot pointer is different from when touching when not being touched.Common contact area is larger, and the warming piece 122 that detects temperature variation is also more, by calculating, finally can determine the position that touches.For example calculate the center of the warming piece 122 of a plurality of temperature variation, with the position of center as touch.The temperature induction type contact panel 100 of above-mentioned embodiment can be detected conductive body and also can detect non-conductive object at the touch location of contact panel according to the definite position that touches of the temperature variation of warming piece.
In the present embodiment, each warming piece 122 all passes through corresponding input lead 124a and is electrically connected with controller with output lead 124b.This simple in structure, also relatively simple when carrying out the contact detecting, only need separately each warming piece 122 detecting to be got final product.And each warming piece 122 is separate, can realize the detection of multi-point touch.
Fig. 1 c is the temperature induction type contact panel diagrammatic cross-section of the second embodiment.Shown in Fig. 1 c, in the present embodiment, substrate is a cover plate (cover glass) 130c, and namely the temperature induction type contact panel comprises cover plate 130c and is arranged on sensed layer 120c on the cover plate 130c.Because contact panel such as Fig. 1 a and Fig. 1 b need to arrange cover plate (not showing among Fig. 1 a and Fig. 1 b) usually in addition on sensed layer 120, avoid the erosion of environment with protection sensed layer 120.Present embodiment directly is arranged at sensed layer 120c on the cover plate 130c; allow cover plate 130c simultaneously as the substrate of carrying sensed layer 120c and the cover plate of protection sensed layer 120c; thereby can save the substrate 110 among Fig. 1 a and Fig. 1 b, simplified structure and saving cost.Identical among sensed layer 120c structure in the present embodiment and Fig. 1 a and Fig. 1 b do not repeat them here.
Fig. 2 a is the temperature induction type contact panel Facad structure synoptic diagram of the 3rd embodiment.The temperature induction type contact panel diagrammatic cross-section of Fig. 2 b for illustrating along profile line A-A ' according to Fig. 2 a embodiment.Shown in Fig. 2 a and Fig. 2 b, in this embodiment, temperature induction type contact panel 200 comprises substrate 210 and is arranged on sensed layer 220 on the described substrate 210.
Sensed layer 220 comprises warming piece 222 and wire 224.
Warming piece 222 is made and is arranged on by thermo-sensitive material on the described substrate 210.Warming piece 222 comprises plural number the first axial warming piece 222a and plural number the second axial warming piece 222b, and plural number the first axial warming piece 222a and plural number the second axial warming piece 222b are arranged on the substrate 210 same surfaces.
In the present embodiment, sensed layer 220 also comprises a plurality of insulating spacers 226 that are arranged on described the first axial lead 224a.The first axial warming piece 222a is arranged at described insulating spacer 226 bilaterals and is connected in series by described the first axial lead 224a, the described second axial warming piece 222b described the first axial lead 224a bilateral that is placed in, described the second axial lead 224b is across on the described insulating spacer 226 and is connected in series the described second axial warming piece 222b.Further, the first axial lead 224a is vertical with the second axial lead 224b, or distributes with an angular cross, but not as limit.
Fig. 2 c is the temperature induction type contact panel diagrammatic cross-section of the 4th embodiment.Shown in Fig. 2 c; in the present embodiment; substrate is a cover plate 230c; because contact panel such as Fig. 2 a and Fig. 2 b; cover plate (not showing among Fig. 2 a and Fig. 2 b) need to be set on sensed layer 220 usually in addition; avoid the erosion of environment with protection sensed layer 220; present embodiment directly is arranged at sensed layer 220 on the cover plate 230c; utilize cover plate 230c simultaneously as the substrate of carrying sensed layer 220 and the cover plate of protection sensed layer; thereby can save the substrate 110 among Fig. 2 a and Fig. 2 b, simplified structure and saving cost.Identical among sensed layer structure in the present embodiment and Fig. 2 a and Fig. 2 b repeats no more.
Although the structure of the embodiment shown in the relative Fig. 1 a of the structure of above-mentioned the 3rd, the 4th embodiment is more complicated, be conducive to reduce the port number of controller, improve the layout density of warming piece 222, thereby improve the touch-control resolution of temperature induction type contact panel 200.
Fig. 3 a is the temperature induction type contact panel Facad structure synoptic diagram of the 5th embodiment.Fig. 3 b is that Fig. 3 a embodiment is along the temperature induction type contact panel diagrammatic cross-section of B-B ' dotted line.Shown in Fig. 3 a and Fig. 3 b, temperature induction type contact panel 300 comprises substrate 310, plural number the first axial warming piece 322a and plural number the second axial warming piece 322b, plural the first axial lead 324a and plural the second axial lead 324b.The first axial warming piece 322a and the second axial warming piece 322b are interspersed respectively in the both sides of substrate 310 and are spaced from each other and then mutually are electrically insulated by substrate 310.The first axial lead 324a is arranged on the substrate 310, and is electrically connected at the first axial warming piece 322a.The second axial lead 324b is arranged on the substrate 310, and is electrically connected at the second axial warming piece 322b.In other embodiments, the first axial warming piece 322a can also be formed by connecting by the first wire 224a for the axial warming piece 222a of first shown in Fig. 2 a, and the second axial warming piece 322b can also be formed by connecting by the second wire 224b for the axial warming piece 222b of second shown in Fig. 2 a.
Fig. 3 c is the temperature induction type contact panel cross-sectional view of the 6th embodiment.Shown in Fig. 3 c, in the present embodiment, the first axial warming piece 322a in the embodiment shown in Fig. 3 a has increased another substrate, and namely the temperature induction type contact panel in the present embodiment comprises first substrate 310a and second substrate 310b.The first axial warming piece 322a can directly be arranged at the lower surface of first substrate 310a, the second axial warming piece 322b is arranged at the lower surface of second substrate 310b, and the first axial warming piece 322a and the second axial warming piece 322b separate by second substrate 310b and then mutually be electrically insulated.In other embodiments, this first substrate 310a can be a cover plate, touches the plate body that object can directly contact when namely touching, as described in above-mentioned the second embodiment and the 4th embodiment, thereby can save the substrate 310 of Fig. 3 b, simplified structure and saving cost.
Fig. 4 a is the temperature induction type contact panel cross-sectional view of the 7th embodiment.Shown in Fig. 4 a, temperature induction type contact panel 400 comprises substrate 410, insulation course 440, be laid in plural number the first axial warming piece 422a on the substrate 410 and be laid in plural number the second axial warming piece 422b on the insulation course 440.Compare with Fig. 3 a illustrated embodiment, difference is, insulation course 440 is set between plural number the first axial warming piece 422a and plural the second axial warming piece 422b and is spaced from each other and then mutually is electrically insulated by insulation course 440.That is to say that insulation course 440 is as a whole layer design, the first axial warming piece 422a is arranged on a side of insulation course 440, and the second axial warming piece 422b is arranged on insulation course 440 opposite sides.
Fig. 4 b is the temperature induction type contact panel cross-sectional view of the 8th embodiment, shown in Fig. 4 b, the difference of present embodiment and Fig. 4 a illustrated embodiment is, the second axial warming piece 422a directly is arranged on the cover plate 430, as described in above-mentioned the second embodiment and the 4th embodiment, thereby can save the substrate 410 of Fig. 4 b, to save substrate 410.The first axial warming piece 422a and the second axial warming piece 422b separate by insulation course 440 and mutually are electrically insulated.
Fig. 5 is the temperature induction type contact panel cross-sectional view of the 9th embodiment.As shown in Figure 5, in this embodiment, temperature induction type contact panel 500 comprises first substrate 510a, plural number the first axial warming piece 522a, closed gas layer 540, plural number the second axial warming piece 522b and second substrate 510b.The first axial warming piece 522a is arranged on described first substrate 510a lower surface, the second axial warming piece 522b is arranged at the upper surface of described second substrate 510b, closed gas layer 540 is formed between the upper surface of the lower surface of first substrate 510a and second substrate 510b, separates insulating between plural number the first axial warming piece 522a and plural number the second axial warming piece 522b.Plural number the first axial warming piece 522a is identical with Fig. 3 a with the arrangement mode of plural number the second axial warming piece 522b in the present embodiment.In other embodiments, this first substrate 510a also can be a cover plate.
Above-mentioned temperature induction type contact panel is when work, can be first line by line more by column, also can be first by column more line by line, can also be line by line simultaneously, also can all detect the warming piece 222 on all row and columns simultaneously, the method that detects depends on the processing power of controller, can realize equally the detection of multi-point touch.Be connected to the output signal of the wire 224 of warming piece 222 by detection, according to output signal judge this row maybe the warming piece 222 of these row whether occurrence temperature changes, owing to can cause simultaneously the temperature variation of a plurality of warming pieces 222 of touch point periphery when touching, namely can cause simultaneously the temperature variation of the warming piece 222 on the adjacent row and column, the location recognition that the row and column that detects temperature variation is intersected is touch location.Specifically, the warming piece 222 of same row or column is equivalent to be connected by wire 224, is V1 such as the voltage of input end, the resistance of each warming piece 222 is Rn, same row or column is n warming piece altogether, and the electric current of flowing through with delegation is i, and then output voltage V 2 is V1-i* (R1+R2+R3+ ... + Rn).Certain warming piece 222 so that resistance changes, can cause the row or column output voltage at warming piece 222 places to change because of temperature variation.The row and column that occurrence temperature changes is determined in each row or column scanning, can be determined touch location according to the intersection of row and column.
Fig. 6 is the temperature induction type contact panel side structure synoptic diagram of the tenth embodiment.As shown in Figure 6, in this embodiment, temperature induction type contact panel 600 comprises substrate 610 and is arranged on sensed layer 620 on the described substrate 610.The structure of substrate 610 and sensed layer 620 is identical to embodiment shown in Figure 5 with Fig. 1 a.In the present embodiment, temperature induction type contact panel 600 comprises that also being arranged on avoiding on the described sensed layer 620 touches object produces capacity effect to described sensed layer 620 screen layer 630.When the touch object is conductor, and when the driving signal is AC signal, pulse signal for example, sinusoidal wave signal, can produce coupling capacitance between the warming piece of touch object and sensed layer 620, the resistance of this warming piece also can change because of the temperature that touches object simultaneously, for avoiding the former to the latter's interference, need to increase by a screen layer 630 this moment in the sensed layer 620 of the embodiment shown in Fig. 1 a and Fig. 2 a, can reduce or eliminate by screen layer 630 and to touch the coupling capacitance that forms between object and the warming piece to the impact of detection signal, thereby improve the accuracy of detecting.
Fig. 7 is the temperature induction type contact panel side structure synoptic diagram of the 11 embodiment.As shown in Figure 7; in this embodiment, temperature induction type contact panel 700 comprise substrate 710, be arranged on sensed layer 720 on the described substrate 710, be arranged on avoiding on the described sensed layer 720 touch object to described sensed layer 720 produce capacitance variations screen layer 730, play the stickup effect adhered layer 740, protect the protective seam 750 of sensed layer 720 and prevent the reflection-proof coating 760 that temperature induction type contact panel 700 is reflective.Wherein, the structure of sensed layer 720 is identical with the embodiment shown in Fig. 1 a or Fig. 2 a.
In addition, a kind of manufacture method of temperature induction type contact panel also is provided, be included in the step of laying sensed layer on the substrate, sensed layer comprises warming piece and wire, described warming piece is made and is formed on by thermo-sensitive material on the described substrate, and described wire is arranged on the described substrate and is electrically connected at described warming piece.
The temperature induction type contact panel that the manufacture method of above-mentioned temperature induction type contact panel obtains, because the warming piece adopts the thermo-sensitive material with high-temperature coefficient to make, if have finger or special-purpose hot pointer to touch contact panel, corresponding variation can occur in the resistance of warming piece, thereby so that output signal is being pointed or special-purpose hot pointer is different from when touching when not being touched, finally can determine the position that touches.The method for detecting of temperature induction type contact panel can be detected conductive body and also can detect non-conductive object at the touch location of contact panel according to the definite position that touches of the temperature variation of warming piece.
Further, the manufacture method of above-mentioned temperature induction type contact panel also is included in to lay on the described sensed layer and avoids touching object produces the screen layer (as shown in Figure 6) of capacity effect to described sensed layer step.By in sensed layer screen layer being set, can not produce capacitive coupling so that touch between object and the warming piece, avoid capacitive coupling that thermistor is changed the interference that impact produces on electric signal because of temperature variation, elimination can further avoid producing maloperation after disturbing.
In an embodiment, the warming piece is made by thermo-sensitive material and is arranged on the described substrate with the array format distribution.Each warming piece all passes through corresponding wire and directly is electrically connected (shown in Fig. 1 a and Fig. 1 b) with described controller (not illustrating).The step of laying sensed layer at described substrate comprises: once lay and form simultaneously described warming piece and described wire.In other embodiments, described warming piece and described wire also can form in different step.The temperature induction type that adopts this method to obtain is touch panel structure provided simple, and is also relatively simple when carrying out the contact detecting, only needs separately each warming piece detecting to be got final product.When described substrate is cover plate (shown in Fig. 1 c), the step and this embodiment that form sensed layer are basic identical, so repeat no more.
In an embodiment, described warming piece comprise be arranged at described substrate the same lip-deep plural first axial warming piece and the plural number the second axial warming piece, described wire comprises a plurality of the first axial leads that are parallel to each other and a plurality of the second axial lead that is parallel to each other (shown in Fig. 2 a and Fig. 2 b), and the step of laying sensed layer at described substrate comprises: lay described the first axial lead at substrate; Lay a plurality of insulating spacers at described the first axial lead; Once lay and form simultaneously the first axial warming piece, the second axial warming piece and the second axial lead, the described first axial warming piece is arranged at described insulating spacer bilateral and is connected in series by described the first axial lead, the described second axial warming piece described the first axial lead bilateral that is placed in, described the second axial lead is across on the described insulating spacer and is connected in series the described second axial warming piece.In addition, in another embodiment, can once lay first and form simultaneously the first axial warming piece, the second axial warming piece and the first axial lead or the second axial lead.If form simultaneously the described first axial warming piece, the second axial warming piece and the first axial lead, wherein the first axial lead is connected in series the first axial warming piece, then then on the first axial lead the interval form a plurality of insulating spacers, form the second axial lead at insulating spacer again and connect the second axial warming piece.Although the structure relative complex of the temperature induction type contact panel that present embodiment forms is conducive to reduce the port number of controller, improves the layout density of warming piece, thereby the touch-control resolution of raising temperature induction type contact panel.When described substrate is cover plate (shown in Fig. 2 c), the step and this embodiment that form sensed layer are basic identical, so repeat no more.
In an embodiment, described warming piece comprises plural number the first axial warming piece and plural number the second axial warming piece.The first axial warming piece and the second axial warming piece are interspersed respectively in the both sides of substrate, and by substrate be spaced from each other and then mutually be electrically insulated (shown in Fig. 3 a and 3b).The step that forms sensed layer at described substrate comprises: form the first axial warming piece in a side of substrate; Form the second axial warming piece in the substrate opposite side, wherein the first axial warming piece is interspersed respectively in the relative both sides of substrate with the second axial warming piece.
In an embodiment, described substrate comprises first substrate and second substrate.Described warming piece comprises plural number the first axial warming piece and plural number the second axial warming piece (shown in Fig. 3 c) that is interspersed, and described step in substrate laying sensed layer comprises: form the first axial warming piece in the lower surface of first substrate; And forming the second axial warming piece in the lower surface of second substrate, the first axial warming piece and the second axial warming piece separate by second substrate and then mutually are electrically insulated.In another embodiment, this second substrate can be a cover plate.
In an embodiment, described warming piece comprises plural number the first axial warming piece and plural number the second axial warming piece (shown in Fig. 4 a) that is interspersed, and the step of laying sensed layer at described substrate comprises: form the described first axial warming piece at described substrate; Form an insulation course at the described first axial warming piece; And at described insulation course formation the described second axial warming piece.
In an embodiment, described substrate comprises first substrate and second substrate, described warming piece comprises plural number the first axial warming piece and plural number the second axial warming piece (as shown in Figure 5) that is interspersed, and described step in substrate laying sensed layer comprises: the upper surface at described first substrate forms the described first axial warming piece; Lower surface at described second substrate forms the described second axial warming piece; Reach the upper surface of described first substrate and the lower surface of described second substrate are fitted, make and form a closed gas layer between described substrate and the described cover plate.
Fig. 8 is the process flow diagram of the method for detecting of the utility model embodiment temperature induction type contact panel.As shown in Figure 8, the utility model also provides a kind of method for detecting of temperature induction type contact panel, comprises the steps:
Step S810 drives the warming piece.The mode that drives can be to apply voltage or current signal to the warming piece, and the warming piece can be laid on the substrate with any arrangement mode among Fig. 1 a to Fig. 5.
Step S820, the output signal of detection warming piece.This step can receive by the input port of controller the signal of warming piece generation and realize, can also carry out analog/digital conversion etc. to this signal further.
Step S830 judges according to described output signal whether occurrence temperature changes described warming piece.For example output signal and the preset value of warming piece can be compared, perhaps the value after the analog/digital conversion and pre-stored value are compared etc.Further, judge that according to described output signal the described warming piece step whether occurrence temperature changes comprises: output signal is changed the warming piece that satisfies a preset range be judged as the warming piece that occurrence temperature changes, for example to changing too small or crossing and mostly ignore, can avoid maloperation.
Step S840, the position of the warming piece that the output occurrence temperature changes is touch location.Because the warming piece is made by thermo-sensitive material, the object of finger or other temperature that meet the demands touches contact panel, the warming piece resistance that will cause thermo-sensitive material to be made changes, the variation of resistance will produce corresponding impact to signal, can determine whether temperature variation according to this impact, and the position of the warming piece of temperature variation is touch location.
The method for detecting of above-mentioned temperature induction type contact panel, if have finger or special-purpose hot pointer to touch contact panel, corresponding variation can occur in the resistance of warming piece, thereby so that output signal is being pointed or special-purpose hot pointer is different from when touching when not being touched, finally can determine the position that touches.The method for detecting of temperature induction type contact panel is determined the position of touch according to the temperature variation of warming piece, can detect conductive body and also can detect non-conductive object at the touch location of contact panel, and only to the touch object report contact of the temperature that meets the demands, and the touch object that does not meet the demands can not respond, and can avoid producing maloperation.
Further, in the method for detecting of above-mentioned temperature induction type contact panel, the step of described driving warming piece is: the warming piece that only drives the zone that can respond touch operation.For example, in whole display interface, by arrange can so that controller only can respond the touch operation of two buttons in the current display interface, even and if other position contact panels are reported contacts, controller can not responded yet, at this moment, only drive the warming piece in the zone that can respond touch operation, can save and drive the electric weight that expends or the frequency that improves detecting.
In the above-mentioned embodiment, described substrate and cover plate materials can be selected from transparent material or other nontransparent insulating material such as glass, acryl (PMMA), Polyvinylchloride (PVC), polypropylene (PP), polyethylene terephthalate (PET), PEN (PEN), polycarbonate (PC), polystyrene (PS).Described warming piece monoblock can be by transparent material or nontransparent make laminar.The shape of warming piece can be rhombus, regular hexagon, square, circle or rectangle etc.The material of warming piece can be by at poly-ethylenedioxy thiophene: the doping adulterant is made in poly-(p styrene sulfonic acid) root negative ion (PEDOT:PSS).Adulterant can be selected one or more in sorbierite, ethylene glycol, 1-METHYLPYRROLIDONE, the carbon nano-tube.Wire can adopt the materials such as metal, tin indium oxide or carbon nano-tube.Generally speaking, insulation course in the above-mentioned embodiment need to have preferably heat conductivity, can adopt polyphenylene sulfide (PPS), polysulfones (PSF), boron nitride (BN), aluminium nitride (AlN), silicon nitride (Si3N4), silica gel and material modified, inorganic and organic material compound substance etc.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (11)
1. temperature induction type contact panel comprises substrate and is arranged on sensed layer on the described substrate, it is characterized in that described sensed layer comprises:
The warming piece, described warming piece is made and is arranged on the described substrate by thermo-sensitive material; And
Wire, described wire is arranged on the described substrate, and is electrically connected at described warming piece.
2. temperature induction type contact panel according to claim 1, it is characterized in that, described warming piece comprises plural number the first axial warming piece and plural number the second axial warming piece that is interspersed, and mutually insulated between the described plural first axial warming piece and plural number the second axial warming piece.
3. temperature induction type contact panel according to claim 2 is characterized in that, the described first axial warming piece and the second axial warming piece are positioned at the both sides of described substrate and pass through described substrate mutually insulated.
4. temperature induction type contact panel according to claim 2, it is characterized in that, described substrate comprises first substrate and second substrate, the described first axial warming piece is laid in the lower surface of described first substrate, the described second axial warming piece is laid in the lower surface of described second substrate, and described second substrate is between the described first axial warming piece and the described second axial warming piece.
5. temperature induction type contact panel according to claim 2, it is characterized in that, also comprise insulation course, the described first axial warming piece is laid on the described substrate, the described second axial warming piece position is laid on the described insulation course, and described insulation course is arranged between the described first axial warming piece and the described second axial warming piece.
6. temperature induction type contact panel according to claim 2, it is characterized in that, described substrate comprises a first substrate and a second substrate, the described first axial warming piece is arranged at the lower surface of described first substrate, the described second axial warming piece is arranged at the upper surface of described second substrate, is formed with a closed gas layer between the lower surface of described first substrate and the upper surface of described second substrate and separates insulating between the described first axial warming piece and the described second axial warming piece.
7. temperature induction type contact panel according to claim 1, it is characterized in that, described warming piece comprise be arranged at described substrate the same lip-deep plural first axial warming piece and the plural number the second axial warming piece, described wire comprises the first axial lead and plural the second axial lead that is parallel to each other that plural number is parallel to each other, and described sensed layer also comprises the plural insulating spacer that is arranged on described the first axial lead; The described first axial warming piece is arranged at described insulating spacer bilateral, and by described the first axial lead serial connection, the described second axial warming piece described the first axial lead bilateral that is placed in, described the second axial lead is across on the described insulating spacer and is connected in series the described second axial warming piece.
8. according to claim 1, the described temperature induction type contact panel of 5 or 7 any one, it is characterized in that described substrate is a cover plate.
9. temperature induction type contact panel according to claim 1 is characterized in that, described wire comprises input lead and output lead, and each warming piece all is electrically connected with corresponding input lead and output lead.
10. temperature induction type contact panel according to claim 1 is characterized in that, comprises that also being arranged on avoiding on this sensed layer touches object produces capacity effect to this sensed layer screen layer.
11. temperature induction type contact panel according to claim 1 is characterized in that, described warming piece monoblock is for by transparent or that non-transparent material is made is laminar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375882 CN202904518U (en) | 2012-07-31 | 2012-07-31 | Temperature sensing type touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375882 CN202904518U (en) | 2012-07-31 | 2012-07-31 | Temperature sensing type touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202904518U true CN202904518U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220375882 Expired - Lifetime CN202904518U (en) | 2012-07-31 | 2012-07-31 | Temperature sensing type touch panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202904518U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019453A1 (en) * | 2012-07-31 | 2014-02-06 | 宸鸿科技(厦门)有限公司 | Temperature sensing touch panel and manufacturing method and detecting method thereof |
| CN105302348A (en) * | 2014-07-22 | 2016-02-03 | 中兴通讯股份有限公司 | Thermal induction type touch screen as well as touch method and terminal equipment on basis of touch screen |
| CN113464986A (en) * | 2021-07-21 | 2021-10-01 | 嵊州图腾智能电子有限公司 | Touch controller of sealed integrated stove |
| CN113867522A (en) * | 2021-08-31 | 2021-12-31 | 歌尔科技有限公司 | Interactive projection control method and device, induction pad and interactive projector |
-
2012
- 2012-07-31 CN CN 201220375882 patent/CN202904518U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019453A1 (en) * | 2012-07-31 | 2014-02-06 | 宸鸿科技(厦门)有限公司 | Temperature sensing touch panel and manufacturing method and detecting method thereof |
| CN103576956A (en) * | 2012-07-31 | 2014-02-12 | 宸鸿科技(厦门)有限公司 | Temperature-sensitive type touch control panel, manufacturing method for same and detecting method for temperature-sensitive type touch control panel |
| CN103576956B (en) * | 2012-07-31 | 2016-08-24 | 宸鸿科技(厦门)有限公司 | Temperature induction type contact panel and manufacture method thereof and method for detecting |
| CN105302348A (en) * | 2014-07-22 | 2016-02-03 | 中兴通讯股份有限公司 | Thermal induction type touch screen as well as touch method and terminal equipment on basis of touch screen |
| CN113464986A (en) * | 2021-07-21 | 2021-10-01 | 嵊州图腾智能电子有限公司 | Touch controller of sealed integrated stove |
| CN113867522A (en) * | 2021-08-31 | 2021-12-31 | 歌尔科技有限公司 | Interactive projection control method and device, induction pad and interactive projector |
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