CN203706186U - Touch panel - Google Patents
Touch panel Download PDFInfo
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- CN203706186U CN203706186U CN201420022497.2U CN201420022497U CN203706186U CN 203706186 U CN203706186 U CN 203706186U CN 201420022497 U CN201420022497 U CN 201420022497U CN 203706186 U CN203706186 U CN 203706186U
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- Prior art keywords
- branch electrodes
- node region
- contact panel
- transmitting terminal
- electrode
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- 239000000758 substrate Substances 0.000 claims description 18
- -1 ITO) Chemical compound 0.000 description 8
- 230000008859 change Effects 0.000 description 8
- 239000002356 single layer Substances 0.000 description 7
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 6
- 229910052733 gallium Inorganic materials 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 229910052738 indium Inorganic materials 0.000 description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 4
- 229910003437 indium oxide Inorganic materials 0.000 description 4
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 2
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 2
- TYHJXGDMRRJCRY-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) tin(4+) Chemical compound [O-2].[Zn+2].[Sn+4].[In+3] TYHJXGDMRRJCRY-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000588731 Hafnia Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- CSBHIHQQSASAFO-UHFFFAOYSA-N [Cd].[Sn] Chemical compound [Cd].[Sn] CSBHIHQQSASAFO-UHFFFAOYSA-N 0.000 description 1
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BEQNOZDXPONEMR-UHFFFAOYSA-N cadmium;oxotin Chemical compound [Cd].[Sn]=O BEQNOZDXPONEMR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- FWLGASJILZBATH-UHFFFAOYSA-N gallium magnesium Chemical compound [Mg].[Ga] FWLGASJILZBATH-UHFFFAOYSA-N 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 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
- 230000006698 induction Effects 0.000 description 1
- LFKMKZZIPDISEK-UHFFFAOYSA-L magnesium;4-carboxy-2,6-dihydroxyphenolate Chemical compound [Mg+2].OC1=CC(C([O-])=O)=CC(O)=C1O.OC1=CC(C([O-])=O)=CC(O)=C1O LFKMKZZIPDISEK-UHFFFAOYSA-L 0.000 description 1
- PNHVEGMHOXTHMW-UHFFFAOYSA-N magnesium;zinc;oxygen(2-) Chemical compound [O-2].[O-2].[Mg+2].[Zn+2] PNHVEGMHOXTHMW-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 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
-
- 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
- G06F3/047—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The utility model discloses a touch panel, touch panel contains a base plate, it is regional to have a plurality of nodes to define on the base plate, wherein contains two at least transmitter electrodes in each node region and arranges along a first direction to and a receiver electrode along the first direction is arranged and is located between two transmitter electrodes.
Description
Technical field
The utility model relates to touch-control field, particularly relates to a kind of contact panel.
Background technology
In the market of various now consumption electronic products, the portable electronic products such as personal digital assistant (PDA), mobile phone (mobile Phone), notebook computer (notebook) and panel computer (tablet PC) all use contact panel (touch panel) to carry out the interface tool of linking up as its data widely, especially under the drive of panel computer demand of stressing human oriented design, touch panel has suddenly become one of crucial spare part.
Mutual inductance type single-layer electrodes contact panel is known a kind of contact panel, although it has the function of multi-point touch, but owing to being covered with node (node) on whole contact panel, and each node must have at least one wire to be connected with transmitting terminal electrode (Tx), therefore it is more that the shortcoming of mutual inductance type single-layer electrodes contact panel is the required number of conductors of overall contact panel, and because this type of contact panel is single layer structure, therefore wire also can not intermesh, cause the required surrounding zone area of contact panel larger, to hold these wires, and then the indication range of contact panel is restricted.
Therefore, mutual inductance type single-layer electrodes contact panel of the prior art has its shortcoming that is difficult to overcome to exist.
Utility model content
Given this, the purpose of this utility model is how under the prerequisite that keeps multi-point touch function, effectively to reduce the usage quantity of wire.
The utility model proposes a kind of contact panel, it comprises a substrate, on described substrate, defining multiple node regions is arranged on described substrate, wherein in each node region, comprise at least two transmitting terminal electrodes and arrange along a first direction, and a receiving end electrode is along described first direction arrangement and between described two transmitting terminal electrodes.
According to an embodiment of the present utility model, arranging the receiving end electrode comprising with each node region of a line is in a first direction a continuous structure.
According to an embodiment of the present utility model, wherein each described transmitting terminal electrode has multiple the first branch electrodes and stretches out towards a second direction from each transmitting terminal electrode; Each receiving end electrode has multiple the second branch electrodes and stretches out towards described second direction from each receiving end electrode.
According to an embodiment of the present utility model, wherein each the first branch electrodes and each the second branch electrodes are pectination arrangement, and each the first branch electrodes does not directly contact with each the second branch electrodes.
According to an embodiment of the present utility model, the size of each the first branch electrodes that is wherein positioned at each node region is different each other, and the size of each the second branch electrodes is different each other.
According to an embodiment of the present utility model, each described the first branch electrodes that described in described in each in node region, transmitting terminal electrode comprises is from long to short and gradually changes to the length of the other end from one end of described first direction, and the length of each described the first branch electrodes that described in another, transmitting terminal electrode comprises is from short to long and gradually changes.
According to an embodiment of the present utility model, wherein the spacing each other of each the first branch electrodes in each node region is not identical, and each the second branch electrodes spacing is each other not identical.
According to an embodiment of the present utility model, the quantity that is wherein arranged in each the first branch electrodes that on first direction, the each node region with a line comprises differs from one another, and the quantity of its each the second branch electrodes comprising is also different each other.
According to an embodiment of the present utility model, wherein have at least plural node region to be arranged in same a line of first direction.
According to an embodiment of the present utility model, the border that is wherein arranged in the each node region on substrate is aligned with each other.
According to an embodiment of the present utility model, separately comprise many wires and connect respectively each transmitting terminal electrode and each receiving end electrode.
The utility model more provides a kind of method for detecting of contact panel, comprise following steps: first, one contact panel is provided, described contact panel comprises a substrate, on substrate, defining multiple node regions is arranged on described substrate, wherein in each node region, comprising at least two transmitting terminal electrodes arranges along a first direction, and one receiving end electrode along first direction arrange and between described two transmitting terminal electrodes, then contact panel is carried out to touch-control action, and the capacitance variations value producing according to each node region determines its position of touch.
According to an embodiment of the present utility model, wherein said position of touch is between two adjacent node regions, and the scale of the capacitance variations value that produced by described two adjacent node regions of position of touch decides.
According to an embodiment of the present utility model, wherein said position of touch is positioned at a node region, in described node region, receiving end electrode produces two capacitance variations values that vary in size with two transmitting terminal electrodes respectively, and described position of touch is decided by the scale of this two capacitance variations value.
Be characterised in that herein, on contact panel, there are multiple node region proper alignment, and in each node region, dispose two groups of transmitting terminal electrodes and a receiving end electrode, because each transmitting terminal electrode and receiving end electrode have area, density, branch electrodes that quantity is different, therefore by the ratio of calculating the capacitance variations value that two groups of transmitting terminal electrodes produce described receiving end electrode respectively, can further in a large-scale node region, accurately find the position of touch point.Thus, compared to known mutual inductance type single-layer electrodes contact panel, the area of each node region of the utility model can be made more greatly to reduce the quantity of reaching the required node of sensing function like this, and then reduces the wire usage quantity of contact panel, and reduces the usable floor area of surrounding zone.
Brief description of the drawings
Fig. 1 shows the contact panel schematic diagram of the utility model one preferred embodiment.
Fig. 2 shows the partial enlarged drawing of region A in Fig. 1.
Fig. 3 shows touch panel structure provided vertical view in the utility model one embodiment.
Fig. 4 shows the vertical view of contact panel in another preferred embodiment of the utility model.
Fig. 5 shows the local enlarged diagram of the utility model one node region inner electrode.
Fig. 6 shows the change shape of electrode structure in Fig. 5.
Fig. 7 shows the change shape of another electrode structure in Fig. 5.
Wherein, description of reference numerals is as follows:
1,2 contact panel 22A, 22B the first branch electrodes
10 substrate 30 receiving end electrodes
12,12A, 12B, node region 32 second branch electrodes
12C、12’
14 wire A, B region
20A, 20B transmitting terminal electrode C, D, E touch point
22A, 22B the first branch electrodes
Embodiment
Can further understand the utility model for making to have the knack of the those skilled in the art of technical field under the utility model, hereinafter spy lists preferred embodiment of the present utility model, and coordinate accompanying drawing describe in detail constitution content of the present utility model and effect of wanting to reach.
For convenience of description, of the present utility model each graphic be all only illustrative nature so that the person of readding can be easier to understand the utility model, in figure the detailed ratio of each parts can according to design demand adjust.For the upper and lower relation of relative component in figure described in literary composition, those skilled in the art will be understood that it is the relative position of object, therefore can overturn and present identical member, former capital should belong to the scope that this instructions is introduced together, first chats bright in this appearance.
Please refer to Fig. 1～Fig. 2, Fig. 1 shows the contact panel schematic diagram of the utility model one preferred embodiment, and Fig. 2 shows the partial enlarged drawing of region A in Fig. 1.As shown in Figure 1, contact panel 1 of the present utility model comprises a substrate 10, has multiple node regions 12 to be arranged on substrate 10 on substrate.In addition, also comprise many wires 14 on substrate, one end of each wire 14 is connected with the electrode structure (not being shown in Fig. 1) in node region 12, and the other end is concentrated with an outside processor (not being shown in figure) and is connected.It should be noted that, with the present embodiment, be arranged in the upper each node region 12 (for example the node region 12A on Fig. 1 and node region 12B) with a line of a first direction (being for example Y-axis), it is to be directly connected each other, and be positioned at the induction block (for example the node region 12A on Fig. 1 and node region 12C) of different rows, it is spaced from each other with wire 14, but arbitrary node region 12, and its border and around same a line, the border of other node regions 12 of same row trims mutually, that is to say, with the present embodiment, the top margin of arbitrary node region 12 and base (the namely coboundary of arbitrary node region 12 and lower boundary on Fig. 1) all trim with top margin and the base of same other node regions 12 that list respectively.Similarly, the side of arbitrary node region 12 also with same a line on other node region 12 sides trim.
Please refer to Fig. 2, comprise two transmitting terminal electrodes in each node region 12, it is respectively transmitting terminal electrode 20A and transmitting terminal electrode 20B, and both for example, arrange along a first direction (being Y-axis).In node region 12, also comprise a receiving end electrode 30, this receiving end electrode 30 is between transmitting terminal electrode 20A and transmitting terminal electrode 20B, and it also for example, is arranged along first direction (being Y-axis).In addition, in the utility model, transmitting terminal electrode 20A, transmitting terminal electrode 20B and receiving end electrode 30 all have multiple toward the outward extending branch electrodes of a second direction (being X-axis in the present embodiment), and it is respectively the first branch electrodes 22A, the first branch electrodes 22B and the second branch electrodes 32.The present embodiment illustrates with reference to Fig. 2, and the first branch electrodes 22A extends to the right from transmitting terminal electrode 20A, and the first branch electrodes 22B extends to the left from transmitting terminal electrode 20B, and the second branch electrodes 32 is extended both sides to the left and right from the body of receiving end electrode 30.It should be noted that, in same node region 12, the length of the first branch electrodes 22A for example, gradually changes from long to short from the end to end (top of Fig. 2 is to below) of first direction, and this while length of the first branch electrodes 22B gradually changes from short to long.As the first branch electrodes 22A or the length of the first branch electrodes 22B is longer, the length that is positioned at the second branch electrodes 32 corresponding with the first branch electrodes 22A or the first branch electrodes 22B position on receiving end electrode 30 is also just long.
Illustrate in greater detail, region B as upper left in Fig. 2, the length of its each the first branch electrodes 22A gradually changes from long to short from top to the below of Y-axis, and the length of each the first branch electrodes 22B gradually changes from short to long.Meanwhile, as the first branch electrodes 22A or the length of the first branch electrodes 22B is longer, the length of second branch electrodes 32 corresponding with its position is also just long.In other words,, in receiving end electrode 30 leftward position, the length of second branch electrodes 32 of extending along top to the below of Y-axis gradually changes from long to short.Meanwhile, the length that is positioned at the second branch electrodes 32 of receiving end electrode 30 right positions is to gradually change from short to long.It should be noted that, in the utility model, be not that all region B is identical therewith for the length variations of the branch electrodes in all node regions, but it all follows following rule: under the situation that extend along one end to the other end of first direction in same node region (1), if the first branch electrodes 22A gradually changes from short to long, the first branch electrodes 22B must gradually change from long to short, and vice versa.(2) when the length of the first branch electrodes 22A or the first branch electrodes 22B is longer, the length that is positioned at the second branch electrodes 32 of homonymy on receiving end electrode 30 is also longer, and vice versa.
In addition, it should be noted that, because electrode of the present utility model is single layer structure, therefore each the first branch electrodes 22A, the first branch electrodes 22B directly do not contact each other with the second branch electrodes 32, but leave between any two at least one space.In situation preferably, between each the first branch electrodes 22A and the second branch electrodes 32, being pectination arranges, arrange and be also pectination between each the first branch electrodes 22B and the second branch electrodes 32, with the mutual electric capacity of strengthening being produced between transmitting terminal electrode and receiving end electrode, make the capacitance variations value of its generation in the follow-up step touching electrode upper area also comparatively obvious.
In addition as shown in Fig. 1～2, transmitting terminal electrode 20A in arbitrary node region 12 and transmitting terminal electrode 20B are connected with at least one wire 14, are arranged in first direction (for example Y-axis) and share a receiving end electrode 30 with each node region 12 of a line.That is to say, a complete receiving end electrode 30 can be by the scope with each node region 12 in a line, and it only needs a wire to be connected with this receiving end electrode 30.
Have about transmitting terminal electrode 20A in the utility model, transmitting terminal electrode 20B, the material of receiving end electrode 30, it can select transparent material as tin indium oxide (indium tin oxide, ITO), indium zinc oxide (indium zinc oxide, IZO), cadmium tin (cadmium tin oxide, CTO), aluminum zinc oxide (aluminum zinc oxide, AZO), indium oxide zinc-tin (indium tin zinc oxide, ITZO), tin oxide (tin oxide), zinc paste (zinc oxide), cadmium oxide (cadmium oxide), hafnia (hafnium oxide, HfO), indium oxide gallium zinc (indium gallium zinc oxide, InGaZnO), indium oxide gallium zinc-magnesium (indium gallium zinc magnesium oxide, InGaZnMgO), indium oxide gallium magnesium (indium gallium magnesium oxide, InGaMgO), indium oxide gallium aluminium (indium gallium aluminum oxide, InGaAlO), CNT (Carbon Nano Tube, CNT), silver nanoparticle carbon pipe or copper CNT etc., or other electrically conducting transparent materials and metal or nonmetallic complex, adopt metal or above-mentioned transparent conductive material as for wire 14 is preferential, but above material can be different according to actual demand, it is not limited in the utility model.
Fig. 3 shows the structure vertical view of a contact panel in the utility model one embodiment.As shown in Figure 3, in the present embodiment, length, the width of each node region 12 all equate, and the first branch electrodes 22A comprising in each node region 12, the first branch electrodes 22B, the second branch electrodes 32 quantity are also identical.But the utility model is not as limit, hereinafter the various different aspects of implementing for the utility model contact panel described.And be the event of simplified illustration, below explanation is to be mainly described in detail for the difference of each embodiment, and no longer repeats to repeat to existing together mutually.In addition, the same components in the each embodiment of the utility model can indicate with identical label, is beneficial to the mutual contrast between each embodiment.
Fig. 4 shows a contact panel vertical view in another preferred embodiment of the utility model.As shown in Figure 4, contact panel 2 comprises a substrate 10, on described substrate 10, be arranged with multiple node regions 12 ', shown in itself and the utility model Fig. 1, the difference of contact panel 1 is, in the present embodiment, the size of each node region 12 ' does not limit mutually the same.That is to say, the size of each node region 12 ' can be adjusted to some extent according to actual demand.Therefore the first branch electrodes (not being shown in figure), comprising in each node region 12 ' also may change according to actual demand with the quantity of the second branch electrodes (not being shown in figure).For different node regions 12 ', the first branch electrodes 22A that its inside comprises may be identical with the quantity of the second branch electrodes 22B, also may be different.
In addition, the transmitting terminal electrode 20A of each node region 12 ' inside and shape, size, the arrangement density of receiving end electrode 20B also can be adjusted according to actual demand.Please refer to Fig. 5～Fig. 7, Fig. 5 shows the wherein electrode structure in a node region of the utility model, and Fig. 6～Fig. 7 shows respectively two kinds of different aspects of implementing of the electrode structure in the utility model one node region.As shown in Figure 5, in one node region 12 ', include a transmitting terminal electrode 20A, a transmitting terminal electrode 20B and a receiving end electrode 30, and multiple the first branch electrodes 22A, multiple the first branch electrodes 22B and multiple the second branch electrodes 32, the region B that its structure roughly illustrates with Fig. 2 is identical, no longer adds to repeat in this.Fig. 6 is a kind of change shape of Fig. 5, main difference is that the width of each the first branch electrodes 22A, the first branch electrodes 22B and the second branch electrodes 32 broadens, the width of each branch electrodes increases, contribute to reduce technology difficulty and improve yield, being applicable to the lower product of touch-control precision demand.Certainly, the utility model is not limited thereto, and the width of each branch electrodes can, according to actual demand adjustment, freely broaden it or narrow, and it is also encompassed in category of the present utility model.
Referring again to Fig. 7, Fig. 7 is another change shape of Fig. 5, is with the main difference point of Fig. 5 density the on-fixed that each branch electrodes is arranged each other, but can freely adjust.Taking Fig. 7 as example, for the region that wherein branch electrodes length is grown, its branch electrodes is arranged comparatively closely, and on the contrary, for the shorter region of branch electrodes length wherein, its branch electrodes is arranged comparatively loosely.Certainly, the utility model is not limited to the arrangement mode shown in Fig. 7, and the arrangement mode of each branch electrodes can be adjusted according to actual demand.
The change shape of introducing of each embodiment shown in above-mentioned Fig. 4～Fig. 7 combination in any mutually, for instance, in the utility model Fig. 4, in the different node regions 12 ' of contact panel, can include size, width, branch electrodes that arrangement density is different, it also belongs to covering scope of the present utility model.
The touch point detection method of the utility model contact panel then hereinafter will be described.First, provide a contact panel, the structure of this contact panel is same as the previously described embodiments, no longer adds to repeat at this.Then this contact panel is carried out to touch-control action, taking the local contact panel shown in Fig. 2 as example, (example C point as shown in Figure 2 in the time that the scope of touch point is positioned at a node region 12, it represents the scope of touch point), the receiving end electrode 30 that the capacitance variations value being produced by touch point can be passed in this node region 12 is immediately responded to.Therefore,, with the present embodiment, the X coordinate of touch point can be decided by receiving end electrode 30.As for the Y-axis coordinate of touch point, can following formula calculating get:
Wherein:
The Y-axis coordinate of Y=touch point.
The first end points Y-axis coordinate of representative in node region described in y1=.
Another end points Y-axis coordinate of representative in node region described in y2=.
Capacitance variations value between the first end points and the receiving end electrode of representative in node region described in Δ C_1=.
Described in Δ C_2=in node region between another end points of representative and receiving end electrode capacitance variations value.
α, β=weight parameter
Illustrate in greater detail, receiving end electrode 30 and transmitting terminal electrode 20A, the 20B of the left and right sides can produce respectively capacitance variations value Δ C_1, the Δ C_2 of different sizes, and its upper and lower side point coordinate of transmitting terminal electrode 20A, 20B of the left and right sides is respectively y1, y2.It should be noted that, end points coordinate is herein to calculate with the y axial coordinate of branch electrodes the longest on described transmitting terminal electrode, the namely node region 12 at region B place in Fig. 2, y1 is the top Y-axis coordinate of left side transmitting terminal electrode 20A, and y2 is the coordinate of Y-axis bottom of right side transmitting terminal electrode 20B.Will be understood that, y1 herein, y2 coordinate are to obtain according to the electrode pattern shown in Fig. 2, and in the time that electrode pattern is different, the coordinate of y1, y2 coordinate also will be adjusted thereupon.Be correction parameter as for α, β, it is adjusted according to various conditions such as the shape of two lateral electrodes, width, arrangement densitys.Calculate according to above formula, receiving end electrode 30 carries out proportional distribution from capacitance variations value Δ C_1, Δ C_2 that transmitting terminal electrode 20A, the 20B of the left and right sides can produce respectively different sizes, and then calculates Y-axis coordinate.It should be noted that, the Y-axis coordinate calculating can be drawn close towards the coordinate of the larger one end of capacitance variations value, for instance, in the node region 12 at B place, region, the transmitting terminal electrode 20A in its left side more can have longer branch electrodes toward top, and the capacitance variations value that therefore produced will be larger.When Δ C_1 numerical value is larger, represent that the transmitting terminal electrode 20A in left side and the capacitance variations value that receiving end electrode 30 produces are larger, the touch point position that therefore calculated can be positioned at node region 12 compared with the position of top.Vice versa, and when Δ C_2 numerical value is larger, the touch point position calculating can be arranged in node region 12 compared with the position of below.According to the calculating of above-mentioned formula, can be again by precisely subdivided to the position of touch point (being position of touch) in the scope in single node region 12, therefore single node region 12 can have larger area, so can reduce the node region quantity on overall contact panel.
(example touch point D as shown in Figure 2 in the time that position of touch is positioned at the intersection of two different node regions in Y-axis, it represents the scope of touch point),, owing to all can producing a certain size capacitance variations value in upper and lower two node regions, therefore can be calculated by following formula:
Wherein:
The Y-axis coordinate of Y=touch point.
Y1=is the Y-axis coordinate of a node representative wherein.
The Y-axis coordinate of another node representative of y3=.
Δ C_1=is the capacitance variations value between transmitting terminal electrode and the receiving end electrode of a node region wherein.
Between the transmitting terminal electrode of another node region of Δ C_3=and receiving end electrode capacitance variations value.
α, β=weight parameter
Via the calculating of above-mentioned formula, the capacitance variations value that upper and lower two different node regions can be produced is respectively carried out proportional distribution, and then accurately calculates the Y-axis coordinate of touch point, and described in the similar upper paragraph of principle of its calculating, in this, it is no longer repeated.
As for position of touch, (example touch point E as shown in Figure 2 when if it is positioned at the intersection of two different node regions in X-axis, it represents the scope of touch point), in two adjacent node regions, left and right, all can produce a certain size capacitance variations value, therefore can be calculated by following formula:
Wherein:
The X-axis coordinate of X=touch point.
X1=is the X-axis coordinate of a node representative wherein.
The X-axis coordinate of another node representative of x2=.
Δ C_1=is the capacitance variations value between transmitting terminal electrode and the receiving electrode of a node region wherein.
Capacitance variations value between transmitting terminal electrode and the receiving electrode of another node region of Δ C_2=.
α, β=weight parameter
Calculate via above-mentioned formula, the capacitance variations value that left and right two different node regions can be produced is respectively carried out proportional distribution, and then accurately calculates the X-axis coordinate of touch point, and described in the similar upper paragraph of principle of its calculating, in this, it is no longer repeated.
Of the present utility model being characterised in that, has multiple node region proper alignment on contact panel, and in each node region, disposes two groups of transmitting terminal electrodes and a receiving end electrode.Because each transmitting terminal electrode and receiving end electrode have area, density, branch electrodes that quantity is different, the ratio of the capacitance variations value therefore respectively this receiving end electrode being produced by two groups of transmitting terminal electrodes of calculating can further accurately find position of touch within a large-scale node region.Thus, compared to known mutual inductance type single-layer electrodes contact panel, the area of each node region of the utility model can be made greatlyr, and then reduces the wire usage quantity of contact panel, the usable floor area of reduction surrounding zone.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (11)
1. a contact panel, is characterized in that, comprises:
One substrate, defines multiple node regions and is arranged on described substrate on described substrate, wherein in each node region, comprise:
At least two transmitting terminal electrodes, arrange along a first direction; And
One receiving end electrode, along described first direction arrangement and between described two transmitting terminal electrodes.
2. contact panel according to claim 1, is characterized in that, each receiving end electrode is arranged in the each described node region with a line on described first direction by all.
3. contact panel according to claim 1, it is characterized in that, each described transmitting terminal electrode has multiple the first branch electrodes and stretches out towards a second direction from each described transmitting terminal electrode, and each described receiving end electrode has multiple the second branch electrodes and stretches out towards described second direction from each described receiving end electrode.
4. contact panel according to claim 3, is characterized in that, each described the first branch electrodes and each described the second branch electrodes are pectination arranges, and each described the first branch electrodes does not directly contact with each described the second branch electrodes.
5. contact panel according to claim 3, is characterized in that, the size of each described the first branch electrodes described in each in node region is different each other, and the size of each described the second branch electrodes is different each other.
6. contact panel according to claim 5, it is characterized in that, each described the first branch electrodes that described in described in each in node region, transmitting terminal electrode comprises is from long to short and gradually changes to the length of the other end from one end of described first direction, and the length of each described the first branch electrodes that described in another, transmitting terminal electrode comprises is from short to long and gradually changes.
7. contact panel according to claim 3, is characterized in that, the spacing each other of each described the first branch electrodes described in each in node region is not identical, and each described the second branch electrodes spacing is each other not identical.
8. contact panel according to claim 3, it is characterized in that, the quantity that is arranged in each described the first branch electrodes that on described first direction, the each described node region with a line comprises differs from one another, and the quantity that is arranged in each described the second branch electrodes that on described first direction, the each described node region with a line comprises differs from one another.
9. contact panel according to claim 1, is characterized in that, has at least plural described node region to be arranged in the same a line on described first direction.
10. contact panel according to claim 1, is characterized in that, the border that is arranged in the each described node region on described substrate is aligned with each other.
11. contact panels according to claim 1, is characterized in that, separately comprise many wires and connect respectively each described transmitting terminal electrode and each described receiving end electrode.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
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| US201361886674P | 2013-10-04 | 2013-10-04 | |
| US61/886,674 | 2013-10-04 | ||
| TW102146767A TWI607351B (en) | 2013-10-04 | 2013-12-17 | Touch panel and detecting methods thereof |
| TW102146767 | 2013-12-17 |
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| CN203706186U true CN203706186U (en) | 2014-07-09 |
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| CN201420022497.2U Expired - Lifetime CN203706186U (en) | 2013-10-04 | 2014-01-14 | Touch panel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104516573A (en) * | 2013-10-04 | 2015-04-15 | 矽创电子股份有限公司 | Touch panel and signal detection method thereof |
| CN106502484A (en) * | 2016-11-04 | 2017-03-15 | 友达光电（苏州）有限公司 | Touch control unit |
| CN108399020A (en) * | 2017-02-08 | 2018-08-14 | 京东方科技集团股份有限公司 | A kind of touch base plate and touch device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI585662B (en) * | 2015-07-23 | 2017-06-01 | 矽創電子股份有限公司 | Touch apparatus |
| CN107422917B (en) * | 2017-07-31 | 2020-06-16 | 京东方科技集团股份有限公司 | Touch electrode, driving method and touch panel |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI489356B (en) * | 2009-12-15 | 2015-06-21 | Au Optronics Corp | Touch display device and touch sensing device |
| CN102033672A (en) * | 2010-10-13 | 2011-04-27 | 深圳欧菲光科技股份有限公司 | Capacitive touch screen with single-layer electrode |
| CN102591541A (en) * | 2012-01-19 | 2012-07-18 | 苏州瀚瑞微电子有限公司 | Wire arrangement structure for single-layer indium tin oxide (ITO) |
| CN202720612U (en) * | 2012-03-07 | 2013-02-06 | 深圳市汇顶科技有限公司 | Single-layer two-dimensional touch sensor and touch control terminal |
| CN202838286U (en) * | 2012-08-28 | 2013-03-27 | 深圳市汇顶科技股份有限公司 | Capacitive single-layer two-dimensional touch sensor |
| CN103218095A (en) * | 2013-03-25 | 2013-07-24 | 南昌欧菲光科技有限公司 | Single-layer multipoint capacitive touch screen |
| CN104516573A (en) * | 2013-10-04 | 2015-04-15 | 矽创电子股份有限公司 | Touch panel and signal detection method thereof |
-
2014
- 2014-01-14 CN CN201410015912.6A patent/CN104516573A/en active Pending
- 2014-01-14 CN CN201420022497.2U patent/CN203706186U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104516573A (en) * | 2013-10-04 | 2015-04-15 | 矽创电子股份有限公司 | Touch panel and signal detection method thereof |
| CN106502484A (en) * | 2016-11-04 | 2017-03-15 | 友达光电（苏州）有限公司 | Touch control unit |
| CN106502484B (en) * | 2016-11-04 | 2019-05-21 | 友达光电（苏州）有限公司 | Touch control unit |
| CN108399020A (en) * | 2017-02-08 | 2018-08-14 | 京东方科技集团股份有限公司 | A kind of touch base plate and touch device |
| US10895938B2 (en) | 2017-02-08 | 2021-01-19 | Boe Technology Group Co., Ltd. | Touch substrate, touch panel and method of fabricating a touch panel |
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| CN104516573A (en) | 2015-04-15 |
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