CN103246401B - sensing element structure of touch panel and manufacturing method thereof - Google Patents
sensing element structure of touch panel and manufacturing method thereof Download PDFInfo
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- CN103246401B CN103246401B CN201310176318.0A CN201310176318A CN103246401B CN 103246401 B CN103246401 B CN 103246401B CN 201310176318 A CN201310176318 A CN 201310176318A CN 103246401 B CN103246401 B CN 103246401B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000004020 conductor Substances 0.000 claims abstract description 108
- 239000000758 substrate Substances 0.000 claims abstract description 55
- 230000008961 swelling Effects 0.000 claims description 71
- 230000004308 accommodation Effects 0.000 claims description 33
- 239000000565 sealant Substances 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 11
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- 238000011161 development Methods 0.000 claims description 6
- 239000002923 metal particle Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 239000007770 graphite material Substances 0.000 claims description 5
- 238000010422 painting Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000002042 Silver nanowire Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 26
- 238000004049 embossing Methods 0.000 description 7
- 229910044991 metal oxide Inorganic materials 0.000 description 6
- 150000004706 metal oxides Chemical class 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
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Abstract
The invention discloses a sensing element structure of a touch panel and a manufacturing method thereof. The sensing element structure of the touch panel comprises a plurality of first sensing series which are respectively arranged on the surface of a first substrate along a first direction. Each first sensing series comprises a plurality of first sensing units and a plurality of first grooves, wherein the plurality of first sensing units are adjacent and parallel along a first direction and respectively comprise a first relief structure and a first conductive material arranged in the accommodating space of the first relief structure, each first groove is respectively arranged between any two adjacent first sensing units of the same sensing series, so that the accommodating spaces of any two adjacent first relief structures are communicated through the first grooves, and the first conductive material is also arranged in the first grooves, so that the first sensing units of the same first sensing series are mutually and electrically connected through the first conductive material in the first grooves.
Description
Technical field
The present invention relates to sensing element structure of a kind of contact panel and preparation method thereof, particularly relate to and utilize the conductive material of relief (embossment) structure and tool transparent characteristic to be used as sensing element structure of a kind of contact panel of sensing cell and preparation method thereof.
Background technology
In all types of consumption electronic products now, the portable electronic products such as panel computer, mobile phone (mobilephone) and audio and video player use contact panel (touchpanel) to replace traditional keyboard widely, as man-machine data communication interface, to save the volume of electronic product.
Existing contact panel mainly utilizes transparent metal oxide material to make sensing element, and wherein, what the most generally use at present is the materials such as tin indium oxide.But, the penetrance (transmittance) of transparent metal oxide material, face resistance (sheetresistance) and colour cast (hue) problem are all subject to the impact of its thicknesses of layers, such as, if reduction face resistance and increase thicknesses of layers, so just, the penetrance of tin indium oxide can be made to reduce, therefore, when using conventional transparent metal oxide materials to be used as sensing element, transparency and the electrical performance of taking into account contact panel is difficult to.In addition, tin indium oxide is hard brittle material, if be applied in soft contact panel, then embrittlement (crack) easily can occur and cause touch-control malfunctioning.Therefore, the existing practice utilizing transparent metal oxide material to make sensing element still needs further to be improved.
Summary of the invention
An object of the present invention is to provide a kind of sensing element structure utilizing the conductive material of swelling structure and tool transparent characteristic to make, and makes it be applied in contact panel and effectively can improve the above-mentioned existing problem affecting contact panel transparency and electrical performance because of sensing element material.
For reaching above-mentioned purpose, the invention provides a kind of sensing element structure of contact panel, this sensing element structure comprises many first sensing serials, is arranged at the first surface of first substrate respectively along first direction.Each first sensing serials comprises multiple first sensing cell and multiple first groove, wherein the plurality of first sensing cell is side by side adjacent along first direction, and each first sensing cell comprises the first swelling structure and a kind of first conductive material respectively, the first conductive material is placed among the accommodation space of the first swelling structure.Each first groove is arranged between wantonly two adjacent first sensing cells of same first sensing serials respectively, is communicated by each first groove to make the accommodation space of wantonly two adjacent the first swelling structures.Further, the first conductive material is more arranged in the first groove, is electrically connected mutually to make the first sensing cell of the first identical sensing serials.
For reaching above-mentioned purpose, the present invention separately provides a kind of method for making of sensing element structure of contact panel, comprise and first substrate is provided, it has and is oppositely arranged a first surface, then multiple first swelling structure and multiple first groove is formed in first surface, wherein the first swelling structure is arrayed and has an accommodation space, and each first groove is arranged between the first swelling structure along first direction arranged adjacent, to be communicated with the plurality of first swelling structure.Then in the accommodation space and the first groove of the first swelling structure, the first conductive material is inserted.Sealant is formed, to be sealed in accommodation space and the first groove by the first conductive material again in the first swelling structure surface.
Because the present invention utilizes swelling structure and conductive material to make the sensing element structure of contact panel, therefore can take into account transparency and electrical performance simultaneously, and swelling structure and conductive material all can adapt to bending or soft environment, therefore sensing element structure of the present invention can be applied in soft contact panel, significantly can improve INVENTIONConventional metal-oxide material causes sensing element embrittlement problem because of fragility characteristic.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view of the first embodiment of the sensing element structure of contact panel of the present invention;
The sensing element structure that Fig. 2 is contact panel shown in Fig. 1 is along the diagrammatic cross-section of tangent line 2-2 ';
Fig. 3 is the manufacture craft schematic diagram of sensing element structure of the present invention;
Fig. 4 is the schematic top plan view of the second embodiment of the sensing element structure comprising contact panel of the present invention;
The sensing element structure that Fig. 5 is contact panel shown in Fig. 4 is along the diagrammatic cross-section of tangent line 5-5 ';
Fig. 6 is the schematic top plan view of the 3rd embodiment of the sensing element structure comprising contact panel of the present invention;
The sensing element structure that Fig. 7 A is contact panel shown in Fig. 6 is along the diagrammatic cross-section of tangent line 7-7 ';
Fig. 7 B is the diagrammatic cross-section of the first alternate embodiment of sensing element structure shown in Fig. 7 A;
Fig. 7 C is the diagrammatic cross-section of the second alternate embodiment of sensing element structure shown in Fig. 7 A;
The diagrammatic cross-section of the 3rd alternate embodiment that Fig. 7 D is sensing element structure shown in Fig. 7 A;
Fig. 8 is the schematic top plan view of the 4th embodiment of the sensing element structure comprising contact panel of the present invention;
The sensing element structure that Fig. 9 is contact panel shown in Fig. 8 is along the diagrammatic cross-section of tangent line 9-9 ';
Figure 10 is the schematic top plan view of the 5th embodiment of the sensing element structure comprising contact panel of the present invention;
The sensing element structure that Figure 11 is contact panel shown in Figure 10 is along the diagrammatic cross-section of tangent line 11-11 ';
Figure 12 is the schematic diagram of the alternate embodiment of sensing cell figure of the present invention.
Symbol description
100 sensing element structure elementary cell 110 sensing element structures
112,112 ', 112 ' ', 112 ' ' ' first substrate
112a, 112a ', the first surface of 112a ' ', 112a ' ' ' first substrate
112b, 112b ' second surface of first substrate
114 first sensing cell 116 first swelling structures
116a accommodation space 118 first conductive material
120 relief material layer 120a bossings
120b flat 122 first groove
124 first sealant 126 depressions
128,128a, 128b, 128c first sensing serials
The wide conductor part of 130 first conductor structure 130a
130b thin wire part 132 embossing roller bearing
136 adhesive coating 138 protective seams
140,218 second conductive material 142 signal sensing districts
144 perimeter circuit district 200 sensing element structure elementary cells
The first surface of 212 second substrate 212a second substrates
214 second sensing cell 216 second swelling structures
216a accommodation space 220 relief material layer
222 second groove 224 second sealants
226 depressions
228,228a, 228b, 228c second sensing serials
230 second conductor structure 240 conductive bridge element
242 through holes
600,700,800,900 sensing element structures/contact panel
610 perimeter circuit district of signal sensing districts 612
H swelling structure degree of depth Y first direction
X second direction
Embodiment
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is the schematic top plan view of the first embodiment of the sensing element structure of contact panel of the present invention, and the sensing element structure that Fig. 2 is contact panel shown in Fig. 1 is along the diagrammatic cross-section of tangent line 2-2 '.In Fig. 1 and Fig. 2, sensing element structure 110 has the first sensing serials 128 of single direction, such as, comprise multiple first sensing serials 128a, 128b, 128c, all extends arrangement along first direction Y.Each first sensing serials 128 comprises multiple first sensing cell 114 respectively, a craspedodrome is arranged into along first direction Y is adjacent, be arranged on the first surface 112a of first substrate 112, and each first sensing cell 114 comprises one first swelling structure 116 and one first conductive material 118 respectively.Each first swelling structure 116 comprises an accommodation space 116a, and the first conductive material 118 is placed among the accommodation space 116a of the first swelling structure 116.First sensing serials 128 separately comprises multiple first groove 122, between wantonly two adjacent the first sensing cells 114 being arranged at same first sensing serials 128 respectively, the accommodation space 116a of wantonly two adjacent the first swelling structures 116 can be communicated by each first groove 122; That is the first swelling structure 116 has semi-open shape, concatenated with one another by the first groove 122.First conductive material 118 to be more arranged in the first groove in 122, therefore, the first conductive material 118 in each first sensing cell 114 in same first sensing serials 128 flows with the first conductive material 118 in the first groove 122 and communicates, and is electrically connected each other or electrically conducts.It should be noted that, in FIG, although only survey sense tandem 128a, 128b, 128c and have individually three sensing cells 114 and do representative and illustrate with three first, the quantity that in fact first of a sensing element structure 110 the quantity and each first surveying sense tandem 128 surveys the first sensing cell 114 that sense tandem 128 comprises and the first groove 122 is not limited with that shown in Figure 1.
As shown in Figure 2, first swelling structure 116 is made up of relief material layer 120, wherein relief material layer 120 is arranged on the first surface 112a of first substrate 112, it has flat 120b and bossing 120a, adjacent bossing 120a can as wall of cup the flat 120b of circle segment, form an accommodation space 116a, accommodation space 116a only has opening with the first groove 122 joint, and accommodating the first conductive material 118 in the inner can be circulated among the first adjacent swelling structure 116 via the first groove 122.In addition, sensing element structure 110 separately comprises the first sealant 124 and is arranged on relief material layer 120 surface, it covers the surface of each first swelling structure 116 and the first groove 122, is sealed in each first sensing serials 128 by the first conductive material 118 in accommodation space 116a and the first groove 122.In the present embodiment, first conductive material 118 can comprise the combination of the conductive material of any tool transparent characteristic, be such as the solution etc. comprising the development (silvernanowire) of tool electric conductivity, nano-metal particle (nanometalparticles) or nano-graphite material, the nano material of above-mentioned tool electric conductivity and solvent be combined in certain proportion or condition under, can think that the first conductive material 118 has transparent characteristic or has high light transmittance by human eye vision.By being dispersed in development, nano-metal particle or the nano-graphite in the first conductive material 118; whole first conductive material 118 being arranged in the first sensing serials 128 can be made to have electric conductivity, be electrically connected mutually to allow each first sensing cell 114 in the first sensing serials 128.For example, the depth H of the accommodation space 116a of first swelling structure 116 of the present embodiment is about 15 to 30 microns, but not as limit; The first conductive material 118 in each first swelling structure 116 can fill full accommodation space 116a completely, also full accommodation space 116a can not exclusively be filled, such as the packed height of the first conductive material 118 in accommodation space 116a can be less than or equal to about 1 micron, but not as limit.
The sensing element structure 110 of contact panel of the present invention separately can comprise multiple first conductor structure 130, the one end or two ends that lay respectively at each first sensing serials 128 all possess, such as Fig. 1 shows each first conductor structure 130 and corresponds respectively in first sensing serials 128, and be located at downside or the upside of the first sensing serials 128, that is the upside of first sensing serials 128 is connected one first conductor structure 30 respectively with downside, wherein the first conductor structure 130 contacts to be electrically connected on this first sensing serials 128 with the first conductive material 118 of the first corresponding sensing serials 128.In other embodiments, first sensing serials 128 can only have side to be connected with one first conductor structure 30.The better combination of conductive materials comprising metal material or tool transparent characteristic of first conductor structure 130, such as silver, it can screen painting mode be made on the first surface 112a of first substrate 112, but not as limit, such as, gold-tinted manufacture craft system or ink printing (Ink-jetprinting) technology also can be utilized to make the first conductor structure 130.In order to the first conductive material 118 reaching the first sensing serials 128 making the first conductor structure 130 corresponding with it contacts, the better height being greater than the first swelling structure 116 of the thickness of the first conductor structure 130, such as, can be equal to or greater than the height of the first swelling structure 116 and the summation of the first sealant 124 thickness.Moreover, with the first sensing serials 128 joint, first conductor structure 130 can have a wide conductor part 130a, and its width is about same as the width of accommodation space 116a, and wide conductor part 130a connects with the bossing 120a of relief material layer 120 and around the first conductive material 118.Each first conductor structure 130 separately comprises a thin wire part 130b, connect with corresponding wide conductor part 130a respectively, thin wire part 130b can be electrically connected with other wires of outside or signal-obtaining element again, sends out with the signal sensed by the first sensing cell 114.Therefore, in sensing element structure 110 of the present invention, the part being provided with the first sensing serials 128 can be considered as signal sensing district 142, its rough region being same as the first sealant 124 and covering, and first substrate 112 not the region that covers by the first sealant 124 can be considered as perimeter circuit district 144, that is the region set by the first conductor structure 130.Quantity and the shape of the first conductor structure 130 corresponding to each first sensing serials 128 are not limited with the present embodiment, such as in other embodiments, article one, the first sensing serials 128 can simultaneously corresponding two the first conductor structures 130, lay respectively at the two ends of this first sensing serials 128.
Please refer to Fig. 3, Fig. 3 is the manufacture craft schematic diagram that sensing element structure of the present invention makes in volume to volume (roll-to-roll) mode.The production method of sensing element structure 110 of the present invention can volume to volume mode make.First as step 502, first substrate 112 is provided, then to be such as coated with or other modes form relief material layer 120 at the first surface 112a of first substrate 112, then the first swelling structure 116 utilizing embossing roller bearing 132 to roll on relief material layer 120 surface to print off in arrayed with embossing (embossing) processing mode in manufacturing process steps 504 and the first groove 122(not shown in Figure 3), then as shown in manufacturing process steps 506, the first conductive material 118 is inserted in the first groove 122 between first swelling structure 116 of the first sensing cell 114 on first substrate 112 and wantonly two adjacent first sensing cells 114, to form the first sensing serials 128.Then, as step 508, with the first sealant 124, the first swelling structure 116 and the first groove 122 of having inserted the first conductive material 118 are sealed, just complete the making of the primary element of the sensing element structure 110 of touch base plate of the present invention.It should be noted that, when inserting the first conductive material 118, first conductive material 118 may because being fluid state containing solvent, can toast before sealing or afterwards to the first conductive material 118 and solvent is evaporated or solidification, such as heat or with UV-irradiation first conductive material 118, the first conductive material 118 solidified.In different embodiments, the first conductive material 118 itself also can be transparent fluid, does not evaporate or solidify manufacture craft after inserting the first swelling structure 116 to it, allows the first conductive material 118 be present in swelling structure 116 with fluid state.Afterwards, according to required contact panel size, the modes such as cutting can be utilized the first substrate 112 of whole to be cut into multi-disc to form multiple sensing element structure 110.In addition, the first conductor structure 130 can be formed at the surface of first substrate 112 before or after cutting first substrate 112, to connect with the first corresponding sensing serials 128.
Please consult Fig. 1 and Fig. 2 more simultaneously, in manufacturing process steps 504, to roll when printing off the first swelling structure 116 and the first groove 122 on relief material layer 120 surface when utilizing embossing roller bearing 132, first substrate 112 simultaneously between adjacent first sensing serials 128 can form multiple closed depression 126, it is made up of the bossing 120a closed and flat 120b, in the present embodiment, do not need in depression 126 to insert other materials in addition, but in the sealing manufacture craft of manufacturing process steps 508, the first sealant 124 can seal up depression 126 simultaneously.Should be noted, the design of sensing element structure 110 of the present invention between the first sensing serials 128 is not limited with above-mentioned, for example, in other embodiments, also conductive material can be injected in depression 126, such as in manufacturing process steps 506, second conductive material 140 is injected depression 126, wherein the first conductive material 118 can be identical or not identical material with the second conductive material 140.Then in manufacturing process steps 508, seal first conductive material 118 and second conductive material 140 of depression 126 and accommodation space 116a simultaneously.In another other embodiments, transparent non-conductive fluid can be injected in depression 126 or other materials is sealed again, with the pressure of balance protrusion part 120a both sides.In another embodiment again, the embossing roller bearing 132 with the embossing being different from the first embodiment can be utilized to roll on relief material layer 120 surface print off and only there is the first swelling structure 116 and the first groove 122 but the pattern not having depression 126, that is the relief material layer 120 between the first adjacent sensing serials 128 is all bossing 120a.
The sensing element structure of contact panel of the present invention is not limited with above-described embodiment.Hereafter will sequentially introduce sensing element structure of the contact panel of other preferred embodiment of the present invention and preparation method thereof, and for the ease of the deviation of more each embodiment and simplified illustration, identical symbol is used to mark identical element in the following embodiments, and be described mainly for the deviation of each embodiment, and no longer repeating part is repeated.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is the schematic top plan view of the second embodiment of the sensing element structure comprising contact panel of the present invention, and the sensing element structure that Fig. 5 is contact panel shown in Fig. 4 is along the diagrammatic cross-section of tangent line 5-5 '.If be used as the elementary cell of sensing element structure with the sensing element structure of the present invention 110 shown in Fig. 1 and Fig. 2, so in the present embodiment, the sensing element structure 600 of contact panel of the present invention can comprise the elementary cell of two sensing element structures 110, and mutually overlapping with different directions and to be formed be the sensing serials that Y-direction and X-direction extend respectively.For ease of difference, the elementary cell contained along the sensing element structure of first direction Y extension arrangement represents with label 100 by following examples, the elementary cell comprised along the sensing element structure of second direction X extension arrangement then represents with label 200, wherein repeats no more the part that sensing element structure elementary cell 100 is identical with the first embodiment.In the present embodiment, sensing element structure elementary cell 100 is arranged on the first surface 112a ' of first substrate 112 ', and the similar of sensing element structure elementary cell 200 is in sensing element structure elementary cell 100, be arranged on the second surface 112b ' of first substrate 112 ', wherein first surface 112a ' is parallel with second surface 112b ' is oppositely arranged.
Sensing element structure elementary cell 200 comprises many and extends and the second sensing serials 228 be arranged in parallel with each other along second direction X, and wherein second direction X is crossing with first direction Y, and such as both are orthogonal.Fig. 4 with three the second sensing serials 228a, 228b, 228c as representative.Each second sensing serials 228 comprises multiple second sensing cell 214, is electrically connected each other and is arranged into a craspedodrome along second direction X is adjacent.Each second sensing cell 214 comprises one second swelling structure 216 and the second conductive material 218 respectively, and wherein the second swelling structure 216 is made up of relief material layer 220, and the second conductive material 218 is arranged within the accommodation space 216a of the second swelling structure 216.Each second sensing serials 228 separately comprises multiple second groove 222, between adjacent 2 second sensing cells 214 being arranged at same second sensing serials 228, communicates to make the accommodation space 216a of the second swelling structure 216.From Fig. 4 and Fig. 5, first sensing cell 114 and the second sensing cell 214 misplace mutually and nonoverlapping on the direction of the first surface 112a ' perpendicular to first substrate 112 ', but the first groove 122 and the second groove 222 partly overlap in the direction perpendicular to first surface 112a '.
Sensing element structure elementary cell 200 separately comprises the second sealant 224 and is covered in the second swelling structure 216 surface, to be sealed in accommodation space 216a and the second groove 222 by the second conductive material 218.Moreover, sensing element structure elementary cell 200 separately can comprise multiple second conductor structure 230, be located at one end of each second sensing serials 228 respectively, contact to be electrically connected on this second sensing serials 228 with the second conductive material 218 of the second corresponding sensing serials 228.In addition, depression 226 between second sensing serials 228 can not insert any material, also can insert transparent non-conductive material or the second conductive material 218, or when making the second swelling structure 216, make not form any depression 226 between the second sensing serials 228.
Sensing element structure 600 due to the present embodiment comprises orthogonal the first crossing sensing serials 128 and the second sensing serials 228 and the first corresponding conductor structure 130 and the second conductor structure 230, therefore sensing element structure 600 of the present invention also can be considered the contact panel that can provide complete touch controllable function, wherein, the part comprising the first sensing serials 128 and the second sensing serials 228 is used as signal sensing district 610, and the part arranging the first conductor structure 130 and the second conductor structure 230 is used as perimeter circuit district 612.The position of touch of user can be calculated by the first sensing serials 128 of Y and X-direction and the second sensing serials 228.In different embodiments, the both sides of the first sensing serials 128 are connected respectively two the first conductor structures 130, and the both sides of the second sensing serials 228 also can be connected respectively two the second conductor structures 230, such as, shown in Fig. 1, but not as limit.From the above, the present embodiment sensing element structure 600 utilizes to make the sensing element structure elementary cell 100,200 moving towards perpendicular respectively, to provide the sensing function of X-direction and Y-direction in the opposed surface of first substrate 112.Be similar to previous embodiment, sensing element structure 600 can utilize volume to volume mode to make, such as first make sensing element structure elementary cell 100 with the fabrication processing of Fig. 3 at the first surface 112a ' of first substrate 112 ', make sensing element structure elementary cell 200 with similar flow process at the second surface 112b ' of first substrate 112 ' more afterwards, and then cut the size required for first substrate 112 ' one-tenth according to need.
Please refer to Fig. 6 and Fig. 7 A, Fig. 6 is the schematic top plan view of the 3rd embodiment of the sensing element structure comprising contact panel of the present invention, and the sensing element structure that Fig. 7 A is contact panel shown in Fig. 6 is along the diagrammatic cross-section of tangent line 7-7 '.Be in different from previous embodiment of the present embodiment sensing element structure 700 is made on different substrates in sensing element structure elementary cell 100 and sensing element structure elementary cell 200 respectively, such as first sensing element structure elementary cell 100 is made on the first surface 112a of first substrate 112, sensing element structure elementary cell 200 is made on the first surface 212a of second substrate 212, and then utilize an adhesive coating 136 second substrate 212 to be fixed on first substrate 112 in contrast on the second surface 112b of first surface 112a, wherein the first sensing serials 128 and the second sensing serials 228 extend along the first direction Y intersected vertically and second direction X respectively and arrange, and adhesive coating 136 for transparent material can comprise solid-state or liquid optical cement (opticalclearadhesive, the transparent material such as OCA).Thus, the contact panel that the sensing element structure 700 just completing third embodiment of the invention is formed.
It should be noted that, although the second sensing serials 228 in the present embodiment is arranged at second substrate 212 in contrast on the first surface 212a of first substrate 112, but sensing element structure elementary cell 100, the relative position of first substrate 112 and adhesive coating 136 and sensing element structure elementary cell 200, the relative position of second substrate 212 and adhesive coating 136 is not limited to the 7th figure those shown, such as in fixing sensing element structure elementary cell 100, when 200, sensing element structure elementary cell 200 or 100 can be made to turn upside down, such as make the second sensing serials 228 between second substrate 212 and adhesive coating 136, or make the first sensing serials 128 between first substrate 112 and adhesive coating 136.Please refer to the structural representation that Fig. 7 B, Fig. 7 C and Fig. 7 D, Fig. 7 B to Fig. 7 D are respectively the first alternate embodiment of sensing element structure shown in Fig. 7 A, the second alternate embodiment and the 3rd alternate embodiment.As shown in Figure 7 B, third embodiment of the invention shown in this first alternate embodiment from Fig. 7 A different are in turn upside down in its sensing element structure elementary cell 200 and arrange, even if also the second swelling structure 216 of the second sensing serials 228 and the second conductive material 218 are arranged between second substrate 212 and adhesive coating 136; The difference of the second alternate embodiment shown in Fig. 7 C and Fig. 7 A is that sensing element structure elementary cell 100 turns upside down and arranges, even if also the first swelling structure 116 and the first conductive material 118 are arranged between first substrate 112 and adhesive coating 136; And the difference of the 3rd alternate embodiment shown in Fig. 7 D and Fig. 7 A is that sensing element structure elementary cell 100 and 200 is all to turn upside down arranges.
Please refer to Fig. 8 and Fig. 9, Fig. 8 is the schematic top plan view of the 4th embodiment of the sensing element structure comprising contact panel of the present invention, and the sensing element structure that Fig. 9 is contact panel shown in Fig. 8 is along the diagrammatic cross-section of tangent line 9-9 '.The present embodiment sensing element structure 800 and the 3rd embodiment different are in second substrate 212 in replacing with the protective seam 138 of transparent material in Fig. 7 A-Fig. 7 D and adhesive coating 136.Therefore; its manufacture craft can be included in and sensing element structure elementary cell 100 is made in first substrate 112 ' ' first surface 112a ' ' after; smooth protective seam 138 is formed prior to the first sealant 124 surface; the surface of complete covering sensing element structure elementary cell 100 and side, and then sensing element structure elementary cell 200 is produced on protective seam 138 in contrast on the surface of sensing element structure elementary cell 100 in such as volume to volume mode.Therefore, first sensing serials 128 of the present embodiment and the second sensing serials 228 are from bottom to top sequentially arranged at first substrate 112 " first surface 112a " on.
Please refer to Figure 10 and Figure 11, Figure 10 is the schematic top plan view of the 5th embodiment of the sensing element structure comprising contact panel of the present invention, and the sensing element structure that Figure 11 is contact panel shown in Figure 10 is along the diagrammatic cross-section of tangent line 11-11 '.First sensing cell 114, first groove 122 and second sensing cell 214 of the sensing element structure 900 of fifth embodiment of the invention are all directly made in first substrate 112 ' ' ' first surface 112a ' ' ' on, and the first sensing cell 114 and the second sensing cell 214 miss one another and arrange in matrix side by side.Relief material layer 120 constitutes the first swelling structure 116, first groove 122 and the second swelling structure 216 simultaneously, therefore the first sensing serials 128a, 128b, 128c have the structure being similar to Fig. 1, but do not arrange the second groove between adjacent second swelling structure 216, therefore the second conductive material 218 of each second sensing cell 214 is sealed in each second swelling structure 216.Compare with previous embodiment, the sensing element structure 900 of the present embodiment separately comprises multiple conductive bridge element 240, between wantonly two adjacent the second sensing cells 214 being located at same second sensing serials 228 respectively, conductive bridge element 240 is contacted with the second conductive material 118 of the second sensing cell 214 by the through hole 242 of the first sealant 124, be used for being electrically connected the second adjacent sensing cell 214, be electrically connected each other to make the second sensing cell 214 of same second sensing serials 228.Accordingly, each second sensing serials 228 is made up of with multiple conductive bridge element 240 multiple second sensing cell 214, and Figure 10 is with three the second sensing serials 228a, 228b, 228c signal.It should be noted that, although the second sensing serials 228 and the first sensing serials 128 are crisscross arranged in first substrate 112 ' ' ' first surface 112a ' ' ' on, but because conductive bridge element 240 is located at above the first groove 122, therefore can not be electrically connected with the first sensing serials 128.The production method of conductive bridge element 240 is exemplified as after formation first sealant 124, carry out a laser beam perforation or etching process to form multiple through hole 242 in the first sealant 124, then carry out a screen painting manufacture craft, form conductive bridge element 240 in through hole 242 and the first sealant 124 surface.In addition, the present embodiment sensing element structure 900 separately can comprise protective seam 138 and be arranged at the first sealant 124 and conductive bridge element 240 surface, covers the second sensing serials 228 and the first sensing serials 128, to provide protection.
It should be noted that, the each swelling structure of the present invention is not limited to the diamond shape disclosed in previous embodiment, in order to increase the susceptibility of side direction electric capacity to improve contact panel usefulness, the side direction projected area of each sensing cell can be increased, such as make the figure of each sensing cell complicated to increase its girth, and then increase the projected area of side direction electric capacity.Please refer to Figure 12, Figure 12 shows the schematic diagram of the alternate embodiment of sensing cell figure.Compare with Fig. 1, each first swelling structure 116 of alternate embodiment shown in Figure 12 has the figure of similar snowflake, significantly adds the side direction projected area of the first sensing cell 114 because shape bends.
In sum; sensing serials in the sensing element structure of contact panel of the present invention mainly uses the conductive material comprised as tool transparent characteristic such as development, nano-metal particle or nano-graphite materials to be used as electrical components, and utilizes swelling structure and sealant to define shape and the position of each sensing serials.Because above-mentioned conductive material has good penetrance and low colour cast characteristic; good electrical effect also can be provided; therefore high penetration, bottom surface resistance and low colour cast requirement can be taken into account; and the cost containing the conductive material of the tool transparent characteristic such as development, nano-metal particle or nano-graphite material is also cheaper compared with INVENTIONConventional metal-oxide material, therefore the present invention can reduce the cost of manufacture of contact panel.Moreover because the design of swelling structure can be applicable in flexible display panel, therefore structure of the present invention also can be applied in soft contact panel, effectively avoids the existing problem causing embrittlement because tin indium oxide fragility is high.In addition, structure of the present invention can utilize volume to volume mode to make, can the shape of design modifying swelling structure and density according to need, and can a large amount of continuous seepage sensing serials, avoid using the gold-tinted manufacture craft in traditional structure, thus effectively can carry and produce and can and reduce costs.On the other hand, the conductor structure in perimeter circuit district also can screen painting manufacture craft make, and it has high resiliency adjustment and customized ability, such as, can arrange conductor structure respectively in the both sides of each sensing serials or side, be similarly one of advantage of the present invention.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the claims in the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (17)
1. a sensing element structure for contact panel, this sensing element structure comprises many first sensing serials, is arranged at a first surface of a first substrate respectively along a first direction, and respectively this first sensing serials comprises:
Multiple first sensing cell is side by side adjacent along this first direction, and wherein respectively this first sensing cell comprises respectively:
First relief (embossment) structure, has an accommodation space; And
First conductive material, is placed in this accommodation space of this first swelling structure;
Multiple first groove, between wantonly two adjacent the plurality of first sensing cells being arranged at this first sensing serials same respectively, communicated by each this first groove to make the plurality of accommodation space of wantonly two adjacent the plurality of first swelling structures, and this first conductive material is more arranged in the plurality of first groove, be electrically connected mutually to make the plurality of first sensing cell;
On this first surface that many second sensing serials are arranged at this first substrate along a second direction or a second surface relative with this first surface, wherein this second direction is crossing with this first direction, respectively this second sensing serials comprises multiple second sensing cells of electrical connection mutually, side by side adjacent along this second direction, wherein respectively this second sensing cell comprises respectively:
Second swelling structure, has an accommodation space; And
Second conductive material, is placed in this accommodation space of this second swelling structure; And
Multiple second conductor structure, lays respectively at one end of respectively this second sensing serials, contacts to be electrically connected this second sensing serials with this second conductive material in this second sensing serials.
2. sensing element structure as claimed in claim 1, separately comprises one first sealant, is covered in the surface of the plurality of first swelling structure.
3. sensing element structure as claimed in claim 1, wherein this first conductive material comprises development (silvernanowire), nano-metal particle (nanometalparticles) or nano-graphite material.
4. sensing element structure as claimed in claim 1, it separately comprises multiple first conductor structure, lays respectively at one end of respectively this first sensing serials, contacts to be electrically connected this first sensing serials with this first conductive material of this first sensing serials.
5. sensing element structure as claimed in claim 1, wherein respectively this second sensing serials separately comprises multiple second groove, between wantonly two adjacent the plurality of second swelling structures being located at this second sensing serials same, to make the plurality of accommodation space of the plurality of second swelling structure communicate, and be separately equipped with this second conductive material in the plurality of second groove.
6. sensing element structure as claimed in claim 5, also comprises:
Second substrate, be arranged at the The second surface of this first substrate in contrast to this first surface, and the plurality of second sensing serials is arranged on this second substrate; And
Adhesive coating, is arranged between this first substrate and this second substrate.
7. sensing element structure as claimed in claim 5, wherein the plurality of first sensing serials and the plurality of second sensing serials are from bottom to top sequentially arranged on this first surface of this first substrate.
8. sensing element structure as claimed in claim 7, separately comprises a protective seam and be arranged on the plurality of first sensing serials, and the plurality of second sensing serials is arranged on the surface of this protective seam.
9. sensing element structure as claimed in claim 1, also comprise multiple conductive bridge element, between wantonly two adjacent the plurality of second sensing cells being located at this second sensing serials same, be used for being electrically connected adjacent the plurality of second sensing cell, to make the plurality of second sensing cell of this second sensing serials same be electrically connected to each other, wherein respectively this conductive bridge element is not connected with the plurality of first sensing serials.
10. sensing element structure as claimed in claim 9, wherein the plurality of second sensing serials and the plurality of first sensing serials are crisscross arranged on this first surface of this first substrate.
11. sensing element structures as claimed in claim 10, also comprise a protective seam, are covered on the plurality of second sensing serials and the plurality of first sensing serials.
12. sensing element structures as claimed in claim 1, also comprise one second sealant, are covered in the surface of the plurality of second sensing serials.
The method for making of the sensing element structure of 13. 1 kinds of contact panels, comprising:
One first substrate is provided, there is a first surface;
Multiple first swelling structure and multiple first groove is formed in this first surface, wherein the plurality of first swelling structure is arrayed and has an accommodation space respectively, and respectively this first groove is arranged between the plurality of first swelling structure along a first direction arranged adjacent, to be communicated with the plurality of first swelling structure;
In the plurality of accommodation space and the plurality of first groove of the plurality of first swelling structure, insert one first conductive material, it is fluid; And
A sealant is formed, to be sealed in by this first conductive material in the plurality of accommodation space and the plurality of first groove in the plurality of first swelling structure surface;
Form multiple second swelling structure in this first surface, wherein the plurality of second swelling structure is arrayed and has an accommodation space respectively;
The plurality of accommodation space in the plurality of second swelling structure inserts one second conductive material;
Multiple through hole is formed in sealing layer; And
Carry out a screen painting manufacture craft, to form multiple bridging element on sealing layer, wherein each bridging element is arranged between the plurality of second swelling structure along a second direction arranged adjacent, and be electrically connected with this second conductive material in the plurality of second swelling structure respectively by the plurality of through hole, wherein this second direction is crossing with this first direction.
The method for making of 14. sensing element structures as claimed in claim 13, the step wherein forming the plurality of first swelling structure, insert this first conductive material and seal this first conductive material utilizes a volume to volume (roll-to-roll) manufacture craft to complete.
The method for making of 15. sensing element structures as claimed in claim 13, this first surface being also included in this first substrate forms multiple first conductor structure, to be electrically connected this first conductive material in the wherein one of the plurality of first swelling structure respectively.
The method for making of 16. sensing element structures as claimed in claim 15, the mode wherein forming the plurality of first conductor structure comprises carries out a screen painting manufacture craft.
The method for making of 17. sensing element structures as claimed in claim 13, wherein this first conductive material comprises development, nano-metal particle or nano-graphite material.
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| Application Number | Priority Date | Filing Date | Title |
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| TW102110078 | 2013-03-21 | ||
| TW102110078A TWI476661B (en) | 2013-03-21 | 2013-03-21 | Sensor structure of touch panel and fabrication method thereof |
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| CN103246401A CN103246401A (en) | 2013-08-14 |
| CN103246401B true CN103246401B (en) | 2016-03-16 |
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| TWI514213B (en) * | 2013-10-01 | 2015-12-21 | E Ink Holdings Inc | Touch structure and manufacturing method for the same |
| CN105487727A (en) * | 2014-09-17 | 2016-04-13 | 宸鸿科技(厦门)有限公司 | Capacitive touch panel and manufacturing method thereof |
| CN109254690B (en) * | 2018-09-29 | 2020-11-03 | 广州视睿电子科技有限公司 | Touch film, manufacturing method thereof and touch module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201234243A (en) * | 2011-02-01 | 2012-08-16 | Ind Tech Res Inst | Projective capacitive touch sensor structure and fabricating method thereof |
| CN102662522A (en) * | 2012-04-16 | 2012-09-12 | 姜洪波 | Method for manufacturing flexible touch screen and equipment for manufacturing touch electrode coil |
| CN102873965A (en) * | 2011-07-14 | 2013-01-16 | 杰圣科技股份有限公司 | Automatic manufacturing process of touch panel |
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| KR101040802B1 (en) * | 2009-01-16 | 2011-06-13 | 삼성모바일디스플레이주식회사 | window combined touch screen panel |
| US8593413B2 (en) * | 2010-03-01 | 2013-11-26 | Cando Corporation | Sensory structure of capacitive touch panel and capacitive touch panel having the same |
| KR101122949B1 (en) * | 2010-04-28 | 2012-06-12 | 삼성모바일디스플레이주식회사 | Touch screen panel and fabricating method for the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201234243A (en) * | 2011-02-01 | 2012-08-16 | Ind Tech Res Inst | Projective capacitive touch sensor structure and fabricating method thereof |
| CN102873965A (en) * | 2011-07-14 | 2013-01-16 | 杰圣科技股份有限公司 | Automatic manufacturing process of touch panel |
| CN102662522A (en) * | 2012-04-16 | 2012-09-12 | 姜洪波 | Method for manufacturing flexible touch screen and equipment for manufacturing touch electrode coil |
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| TWI476661B (en) | 2015-03-11 |
| CN103246401A (en) | 2013-08-14 |
| TW201437857A (en) | 2014-10-01 |
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