CN100367428C - Touch panel with adhesive layer - Google Patents
Touch panel with adhesive layer Download PDFInfo
- Publication number
- CN100367428C CN100367428C CNB038204142A CN03820414A CN100367428C CN 100367428 C CN100367428 C CN 100367428C CN B038204142 A CNB038204142 A CN B038204142A CN 03820414 A CN03820414 A CN 03820414A CN 100367428 C CN100367428 C CN 100367428C
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- China
- Prior art keywords
- touch
- adhesive linkage
- screen
- support plate
- plate member
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- 239000012790 adhesive layer Substances 0.000 title abstract 4
- 238000005452 bending Methods 0.000 claims abstract description 45
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 229920003023 plastic Polymers 0.000 claims abstract description 18
- 239000002985 plastic film Substances 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims description 61
- 230000001070 adhesive effect Effects 0.000 claims description 61
- 238000002955 isolation Methods 0.000 claims description 30
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 14
- 238000009413 insulation Methods 0.000 abstract description 6
- 125000006850 spacer group Chemical group 0.000 description 13
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 230000000007 visual effect Effects 0.000 description 10
- 229920005668 polycarbonate resin Polymers 0.000 description 8
- 239000004431 polycarbonate resin Substances 0.000 description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000003522 acrylic cement Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 150000003376 silicon Chemical class 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- KUKRLSJNTMLPPK-UHFFFAOYSA-N 4,7,7-trimethylbicyclo[2.2.1]hept-2-ene Chemical compound C1CC2(C)C=CC1C2(C)C KUKRLSJNTMLPPK-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- GLVKGYRREXOCIB-UHFFFAOYSA-N Bornylene Natural products CC1CCC(C(C)(C)C)C=C1 GLVKGYRREXOCIB-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 1
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007647 flexography Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- ADFPJHOAARPYLP-UHFFFAOYSA-N methyl 2-methylprop-2-enoate;styrene Chemical compound COC(=O)C(C)=C.C=CC1=CC=CC=C1 ADFPJHOAARPYLP-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
Abstract
A touch panel with an adhesive layer, comprising the adhesive layer (9) for sticking, on the entire surface of a display (20), a touch panel body (1) having an upper electrode plate having an upper electrode (3) formed of a transparent conductive film formed on the lower surface of an upper insulation substrate (2) formed of a transparent plastic film and a lower electrode plate having a lower electrode (5) formed of a transparent conductive film formed on the upper surface of a lower insulation substrate (4) formed of a transparent plastic film and opposed to the upper electrode plate through an air layer (6) between the upper electrode plate and the lower electrode plate and a separate support plate member (10) for the adhesive layer, wherein the bending rigidity of the transparent plastic film at a room temperature is 0.3 to 40 kgf.cm<2> when the width (b) of the separate support plate member (10) in cross section is 12 cm.
Description
Technical field
The present invention relates to touch-screen with adhesive linkage, there is not obstacle in this touch-screen in electric checking operation, the visual examination operation before dispatching from the factory, and before dispatching from the factory during and dispatch from the factory after be loaded on before the display surface during can not cause mis-behave because of the bending of goods.
Background technology
All the time, touch-screen has obtained being extensive use of, it is mounted in cordless telephone, mobile phone, calculator, notebook computer, PDA (personal digital assistant), digital camera, video camera, professionally is provided with the front of the mobile model electronic equipment of display or the display of personal computer etc. with communication equipment etc., according to the indication of the picture of perspective with or finger etc. push the input unit that various operations are carried out on the surface.
In the touch-screen, be provided with the upper electrode plate that below the top insulated substrate 102 that constitutes by the transparent plastic diaphragm, has formed the upper electrode 103 that constitutes by nesa coating and on the bottom insulated substrate 104 that constitutes by transparency glass plate or transparent plastic diaphragm, formed the lower electrode plate of the lower electrode 105 that nesa coating constitutes, they constitute touch screen body 101, and upper electrode plate and lower electrode plate sandwich air layer 106 and configuration (with reference to Fig. 2) in opposite directions between electrode.Recently, the slim lightweight of the product of above-mentioned personal computer etc. has obtained attention, thereupon, because the slim light-weighted requirement of touch-screen self, does not often adopt diaphragm/glass structure and selects diaphragm/diaphragm structure.Have again, the 108th, two-sided tape.
And, above-mentioned touch-screen has the structure that comprehensively is adhesively fixed on display (not illustrating) surface, therefore its form of dispatching from the factory is, also is provided with in order to (for example, the thick about 50 μ m and the elasticity of flexure are about 0.0038kgfcm with the bonding adhesive linkage 109 of display and spacer 110 thereof
2Thin and noncohesive PET diaphragm).
But, adopted at touch-screen under the situation of above-mentioned diaphragm/membrane chip architecture, the electric checking operation before dispatching from the factory, visual examination operation to finally display surface install whole during, various problems can take place.
Just, because the general thickness of the touch-screen of diaphragm/membrane chip architecture is thin, the easy warpage of whole touch screen.Particularly, on upper electrode plate, be provided with under the situation of hard coat, easily cause warpage because of the heating in the manufacturing process etc.When under the state of all warpages of whole touch screen, carrying out the visual examination operation, if interelectrode distance unanimity, then Newton's ring do not occur and be judged to qualified product, but, when entirely being installed in the lower electrode plate of touch-screen on the display by adhesive linkage, interelectrode distance becomes inconsistent and Newton's ring occurs.On the contrary, such situation is also arranged: if distance is inconsistent between the state bottom electrode of whole touch screen warpage, then be judged as defective item, but when the touch-screen actual installation was arrived display, interelectrode distance became unanimity and Newton's ring occurs because of Newton's ring not occurring.So, the existence of the problems such as Newton's ring that cause owing to warpage is difficult to as right judgement in the visual examination operation of the touch-screen of diaphragm/membrane chip architecture.
In addition, in the electric checking operation, as mentioned above, because the gross thickness of bottom insulated substrate 104 and spacer 110 is thin, and then the gross thickness of product is also thin, and its bending stiffness is little, and touch-screen is crooked easily, therefore with the shared occasion of automatic inspection machine of box frame (cassette rack) mode of the touch-screen that always adopts diaphragm/glass structure, be difficult to realize checking automation.Promptly, during with the extruding of the hypomere of box frame with the touch-screen direction pushing from the side of adhesive linkage, in addition for will from the box frame take out with the touch-screen of adhesive linkage when the direction pushing from the side of anchor clamps location is extruded, can bend with the touch-screen of adhesive linkage, or come off from anchor clamps.
In addition, in the automatic or automanual electric checking machine of other modes, the touch-screen that the above-mentioned bottom insulated substrate 104 and the gross thickness of spacer 110 are thin, bending stiffness is little is crooked easily, therefore if foreign matter such as dust is arranged on the anchor clamps of electric checking machine, then the bottom insulated substrate will be local to the side-prominent distortion of top insulated substrate according to foreign matter.Its result, even qualified product, also can be judged to be defective insulation because of contacting of lower electrode plate and upper electrode plate, although perhaps the lower electrode plate does not contact with upper electrode plate, but it is because very approaching, if carry out checking linearity while using pen etc. to draw input face, and be made near the bad judgement of importing the input.In order to reduce these phenomenons, consider the electric checking procedure arrangement is carried out in the clean room, but this needs expense, and however also may not be certain perfect.
The problem that exists also has: though in above-mentioned electric checking operation, visual examination operation, be judged to qualified, because the touch-screen that the product gross thickness is thin, bending stiffness is little is bent easily, as long as during dispatching from the factory before with dispatch from the factory after install to before the display surface during be subjected to any load, still can cause because of the bending of product break, mis-behave such as nesa coating.
Therefore, the objective of the invention is to solve the above problems, provide in electric checking operation before dispatching from the factory, the visual examination operation clog-free and dispatching from the factory before during and dispatch from the factory after load onto before the display surface during the touch-screen of having adhesive linkage of mis-behave does not take place to cause because of goods are crooked.
Summary of the invention
The present invention is intended to reach above-mentioned purpose, it is to comprise in order to touch screen body and the comprehensive bonding adhesive linkage of display are reached the touch-screen with adhesive linkage of peeling off discarded isolation support plate member when touch-screen uses from this adhesive linkage, this touch screen body is provided with: the upper electrode film that has formed the upper electrode that is made of nesa coating below the top insulated substrate that transparent plastic sheet constitutes, and the lower electrode that on the bottom insulated substrate that transparent plastic sheet constitutes, has formed the nesa coating formation, between upper electrode film and electrode, sandwich air layer and the lower electrode film of configuration in opposite directions, above-mentioned to be stripped from width b that discarded isolation support plate member is made as in the square-section of above-mentioned isolation bearings board member 10 when being assumed to 12cm the bending stiffness under the normal temperature be 0.3～40kgfcm
2Transparent plastic sheet.
According to a second aspect of the present invention, provide as the described touch-screen of first aspect present invention with adhesive linkage, wherein, above-mentioned to be stripped from width b that discarded isolation support plate member is made as in the square-section of above-mentioned isolation bearings board member 10 when being assumed to 12cm the bending stiffness under the normal temperature be 1.5～8.0kgfcm
2Transparent plastic sheet.
According to a third aspect of the present invention, provide as first or the described touch-screen with adhesive linkage of second aspect, wherein, core and silicon class that above-mentioned adhesive linkage is made up of acrylic compounds adhesive linkage and PETG constitute from bond layer.
The simple declaration of accompanying drawing
Fig. 1 is the sectional view of the touch-screen of having adhesive linkage of expression one embodiment of the invention.
Fig. 2 is the sectional view of the touch-screen of having adhesive linkage of expression prior art.
Fig. 3 is after the isolation support plate member with the touch-screen of adhesive linkage that is illustrated in the above embodiment of the present invention is peeled off from adhesive linkage, with adhesive linkage sectional view of bonding state comprehensively on display.
Fig. 4 is the sectional view with the touch-screen of adhesive linkage of the variation of expression the above embodiment of the present invention.
Fig. 5 is the sectional view with the touch-screen of adhesive linkage of another variation of expression the above embodiment of the present invention.
Implement best mode of the present invention
Before continuing explanation of the present invention, give in the accompanying drawing the identical parts identical Reference numeral of having annotated.
Below, be elaborated with regard to embodiments of the invention with reference to accompanying drawing.Among the figure, the 1st, touch screen body, the 2nd, the top insulated substrate, the 3rd, be configured in the upper electrode of the inner face of top insulated substrate 2, the 4th, the bottom insulated substrate that disposes in opposite directions with top insulated substrate 2, the 5th, be configured in the lower electrode of the inner face of bottom insulated substrate 4, the 6th, be clipped in the air layer between upper electrode 3 and the lower electrode 5, the 8th, with the two-sided tape of the surrounding edge of top insulated substrate 2 and bottom insulated substrate 4 sealing, the 9th, be configured in the adhesive linkage of the outside of bottom insulated substrate 4, the 10th, be configured in the isolation support plate member with spacer and support plate dual-use function of adhesive linkage 9.
Here, the spacer of general adhesive sheet does not need to have the thickness near the present invention's requirement of " plate ", and does not have support function fully as long as play the bonding effect that prevents before bonding.Therefore, the tabular isolation support plate member of the present invention with support function is different from the spacer of prior art fully.
Touch-screen with adhesive linkage shown in Figure 1 is to comprise in order to adhesive linkage 9 that touch screen body 1 and the display 20 of Fig. 3 is bonding comprehensively and the touch-screen with adhesive linkage that isolation support plate member 10 is arranged, this touch screen body 1 is provided with: below the top insulated substrate 2 that the transparent plastic diaphragm constitutes, formed the upper electrode plate of the upper electrode 3 of nesa coating formation, and the lower electrode 3 that the formation nesa coating constitutes on the bottom insulated substrate 4 that the transparent plastic diaphragm constitutes, the lower electrode plate that between upper electrode plate and electrode, sandwiches air layer and dispose in opposite directions; Isolating support plate member 10 is transparent plastic diaphragms, and the bending stiffness when its cross-sectional width b is made as 12cm under the normal temperature is 0.3～40kgfcm
2
The top insulated substrate 2 of touch screen body 1 and the transparent plastic diaphragm of bottom insulated substrate 4 can adopt the transparent plastic diaphragm of pet resin (PET), polycarbonate resin (PC), polyester sulfone resin (PES), polyacrylate resin (PAR) or positive bornene (nor-bornene) resin etc.Have, top insulated substrate 2 and bottom insulated substrate 4 also can be sandwich construction again.The thickness of top insulated substrate 2 and bottom insulated substrate 4 can be about 75～200 μ m.In addition, top insulated substrate 2 top forms hard coat.As hard coat, the inorganic material of siloxane resin etc. or the organic material of acrylic acid epoxy class, the thermohardening type resin of urine gastral cavity class and the light-cured type resin of acrylic acid salt etc. are arranged.The thickness of hard coat serves as suitable with the degree of 1～7 μ m.In addition, the top non-glare treated that prevents the light reflection of top insulated substrate 2.For example, transparent insulation base material or hard coat are carried out concavo-convex processing, or in hard coat, sneak into the particulate of extender pigment or silicon dioxide, aluminium oxide etc.
Material as the nesa coating that is used for upper electrode 3 and lower electrode 5 has tin oxide, indium oxide, antimony oxide, zinc oxide, cadmium oxide, perhaps the metal oxide of ITO etc. and gold, silver, copper, tin, nickel, aluminium, the perhaps metal of palladium etc.As the formation method of these nesa coatings, adopt vacuum vapour deposition, sputtering method, ion plating method or CVD method etc.
In addition, on the face of the electrode side of upper electrode plate and lower electrode plate, form the circuit (not illustrating) of the predetermined pattern of busbar and lead-in wire etc.As the material of circuit, for example, can adopt the paste of the conductivity of the metal that contains gold, silver, copper or nickel etc. or carbon etc., can adopt other material known in addition.As their formation method, the print process of screen painting, hectographic printing, intaglio printing, flexography etc., photoresist method or spread coating etc.
Have again, between upper electrode plate and the lower electrode plate, usually separate by the spacer (illustrate) that is formed on the surface of upper electrode 3 or lower electrode 5, by with point or etc. push from upper electrode plate and upper electrode 3 to be contacted with lower electrode 5 import.As spacer, can form trickle point-like through optical treatment with transparent light-cured type resin and obtain.In addition, also available print process forms a large amount of trickle points as spacer.The height of spacer is generally 2～10 μ m.
As with touch screen body 1 and display 20 comprehensive bonding adhesive linkages 9, the adhesive sheet (with reference to Fig. 5 of back) that can adopt the duplexer of core/acrylic adhesive layer that silicon class bond layer/PETG constitutes to constitute is perhaps only used silicon class bond layer or acrylic adhesive layer etc.The thickness of adhesive linkage 9 can be 20～100 μ m usually.In addition, on adhesive linkage 9 and faces display 20 comprehensive bonding sides, be provided with it and isolate support plate member 10.To isolate after support plate member 10 peels off from adhesive linkage 9, as shown in Figure 3, adhesive linkage 9 will be bonded on the display 20 all sidedly.
The above embodiment of the present invention is characterised in that: the bending stiffness when the width b that above-mentioned isolation support plate member 10 is cross sections is made as 12cm under the normal temperature is 0.3～40kgfcm
2The transparent plastic diaphragm.Bending stiffness tensile modulus of elasticity * I (second moment of area (the cm that isolates support plate member 10
4)) express, when the cross section of isolation support plate member 10 is rectangle, I (second moment of area)=bh
3/ 12, in the formula: b is the width (cm) in cross section, the height (cm) that h is the cross section.In addition, normal temperature refers to 20～25 ℃.Have again, among the present invention,, also suppose b=12cm and obtain the bending stiffness value based on following formula even the width b in the cross section of the actual isolation support plate member 10 that uses is not 12cm.
Here, the reason that cross-sectional width b is taken as 12cm is, in order to express the thickness and the modulus of elasticity of material with the bending stiffness of isolating support plate member 10.The expression formula of isolating the bending stiffness of support plate member 10 is:
Bending stiffness=tensile modulus of elasticity * bh
3/ 12.
Because b is the width (cm) in cross section, the height (cm) that h is the cross section,, then can only express bending stiffness with the thickness and the modulus of elasticity of material if agree and be fixed as b=12cm with the denominator value 12 in the formula.
In addition, the reason that is made as normal temperature is that the strip operation environment of checked operation environment, isolation support plate member 10 is normal temperature environment (have, the modulus of elasticity of isolating the material of support plate member 10 changes because of ambient temperature again, and the bending stiffness value also and then changes).
The better scope of the bending stiffness when in addition, the width b in the cross section of isolation support plate member 10 is made as 12cm under the normal temperature is 1.5～8.0kgfcm
2
If the not enough 0.3kgfcm of bending stiffness
2, then may produce and traditional identical unfavorable condition of touch-screen with adhesive linkage.In addition, if bending stiffness surpasses 40kgfcm
2, then will isolate support plate member 10 when adhesive linkage 9 is peeled off, touch screen body 1 crooked amplitude is very big, thus the unfavorable condition that may cause breaking on the nesa coating etc.
As mentioned above, bending stiffness preferably is made as 1.5～8.0kgfcm
2, to eliminate these unfavorable conditions more reliably.
Be made as above-mentioned scope by the bending stiffness that will isolate support plate member 10, the problem that took place in the electric checking operation before just can avoiding dispatching from the factory, the visual examination operation.
Just, in the electric checking operation, by adopting aforesaid isolation support plate member 10 with bending stiffness of particular range, the rigidity of product integral body is improved, even thereby when shared, also realizing checking automation easily with the automatic inspection machine of the box frame mode of the touch-screen that uses traditional diaphragm/glass structure.Just, in the time of will be with the direction pushing from the side of the touch-screen of adhesive linkage, the bending with the touch-screen of adhesive linkage as prior art can not take place, or situation about coming off from anchor clamps.
In addition, in the automatic or semi-automatic electric checking machine of other modes, the isolation support plate member 10 that has the bending stiffness of above-mentioned particular range by employing has improved the rigidity of product integral body, therefore even the foreign matter of dust etc. is arranged on the anchor clamps of electric checking machine, the bottom insulated substrate also is that gentle ground is crooked, the unlikely generation situation that is projected into top insulated substrate side along foreign matter local deformation as prior art.Its result do not have the erroneous judgement of insulation or linear aspect, and the electric checking operation can be carried out outside the clean room.
In addition, as mentioned above, the isolation support plate member 10 that has the bending stiffness of particular range by employing improves the integral rigidity of product, therefore, even on the insulated substrate of top warpage is arranged, whether qualified the warpage of the such touch-screen integral body of prior art can not take place yet, thereby can make correct judgement in the visual examination operation of Newton's ring etc.
As mentioned above, improved the rigidity of product integral body owing to the spacer 10 that adopts bending stiffness with particular range, be installed to during before dispatching from the factory and after dispatching from the factory before the display surface during, even be added with some loads, the also not bending of reason product and cause breaking of nesa coating etc.
As the used transparent plastic diaphragm of above-mentioned isolation support plate member 10, for example, can adopt acrylic resin (PP), pet resin (PET), polycarbonate resin (PC), third rare nitrile resin (AC), perhaps methylmethacrylate-styrene co-polymerization resin etc.Isolate support plate member 10 because be finally will be dropped, can adopt cheap PET, PC or PMMA etc.Isolating the thickness of support plate member 10 can freely select in the scope of above-mentioned bending stiffness.
As concrete numerical example, for example, adopt modulus of elasticity 2300MPa (23460kgf/cm
3) polycarbonate resin, its thickness is 0.025～0.12cm, bending stiffness is about 0.37～40kgfcm
2The desirable scope of polycarbonate resin is: thickness 0.04～0.07cm, the about 1.5～8.0kgfcm of bending stiffness
2Have again,, as shown in Figure 4, be adopted as and do the demoulding and handle and formed for example isolation support plate member 10 of panel peel ply 25 if the masks of pasting with the display 20 of adhesive linkage 9 have strong cementability function (for example, when containing acrylic compounds adhesive linkage 9) comprehensively.
In addition, as shown in Figure 5, adhesive linkage 9 can be made of the core 9b and the silicon class bond layer 9c of the PETG of acrylic compounds adhesive linkage 9a, for example thickness 38 μ m.
By adopting the silicon class, can carry out peeling off again of touch-screen and display, thereby safeguard easily from adhesive linkage 9c.In addition, by with the acrylic compounds adhesive linkage 9a that do not peel off combination, can determine release surface again below touch screen body 1 or above the display 20.
The size of the touch-screen of having adhesive linkage that as above constitutes has: 100mm * 75mm, 80mm * 60mm, 50mm * 40mm etc.
(embodiment 1)
As the bottom insulated substrate, form the lower electrode that the ITO film by thickness 0.02 μ m constitutes in the above by sputter, with the PET diaphragm of thickness 125 μ m as the lower electrode plate.On the other hand, with the PET diaphragm of thickness 200 μ m as the top insulated substrate, form upper electrode that the ITO film by thickness 0.02 μ m constitutes as upper electrode plate by sputter in its lower section, so with the formation of top insulated substrate form the hard coat of 5 μ m of the light-cured type resin of acrylic acid salt on the relative face of the face of upper electrode with roll coating process.Then, on above-mentioned upper electrode plate and lower electrode plate, form the circuit of predetermined pattern with screen painting, afterwards, upper electrode plate and lower electrode plate are sandwiched air layer and configuration in opposite directions between electrode, the two is bonding with the two-sided tape of thickness 50 μ m at periphery, thus the big touch screen body of 80mm * 60mm made.
With thickness 500 μ m, bending stiffness when cross-sectional width b is 12cm under the normal temperature is 2.9kgfcm
2The PC diaphragm as isolating support plate member 10, on one face, be provided with and stack gradually the adhesive linkage (for example with reference to Fig. 5) that the silicon class of thickness 40 μ m forms from the acrylic adhesive layer of the core of the PETG of bond layer, thickness 38 μ m, thickness 20 μ m.Will this stacked diaphragm stick on this adhesive linkage below the lower electrode plate of above-mentioned touch screen body comprehensively, make touch-screen then with adhesive linkage.
(comparative example 1)
Except being 0.0038kgfcm with thickness 50 μ m, bending stiffness when cross-sectional width b is 12cm under the normal temperature
2The PET diaphragm as beyond the spacer, this example is made the touch-screen with adhesive linkage similarly to Example 1.
The touch-screen of above-mentioned comparative example 1, because the bending stiffness of spacer is little, very big problem has appearred in electric checking operation, visual examination operation before dispatching from the factory, and dispatching from the factory before during with dispatch from the factory after be installed on before the display surface during caused mis-behave because of the bending of goods.Form contrast therewith, the touch-screen of the foregoing description 1 does not have the problem of generation as comparative example 1 because the bending stiffness of isolation support plate member 10 is big.
The touch-screen effect following with adhesive linkage of the present invention because of said structure has.
That is, of the present invention with in the touch-screen of adhesive linkage, the bending stiffness when isolation support plate member is assumed to 12cm by its square-section width b under the normal temperature is 0.3～40kgfcm
2The transparent plastic diaphragm constitute, therefore, in the electric checking operation, improve the rigidity of goods integral body with the isolation support plate member of bending stiffness with above-mentioned particular range, when shared, realizing the automation of checking with the automatic inspection machine of the box frame mode of the touch-screen that is used for diaphragm/glass structure so far easily.Just, in the time of will be with the direction pushing from the side of the touch-screen of adhesive linkage, the such bending with the touch-screen of adhesive linkage of prior art can not take place, perhaps the phenomenon that comes off from anchor clamps.
In addition, in the automatic or semi-automatic electric checking machine of other modes, improve the rigidity of goods integral body by the isolation support plate member that adopts the bending stiffness that has particular range as mentioned above, therefore, even foreign matters such as dust are arranged on the anchor clamps of electric checking machine, insulated substrate gentle ground in bottom is crooked, not can just like conventional art such along foreign matter in the side-prominent distortion of top insulated substrate.As a result, do not have the erroneous judgement of insulation or linear aspect, and the electric checking operation can be carried out outside the clean room.
In addition, improve the rigidity of goods integral body by the isolation support plate member that adopts the bending stiffness that has particular range as mentioned above, therefore, even on the insulated substrate of top warpage takes place, whether qualified the warpage of the such touch-screen integral body of prior art can not take place yet, thereby can correctly carry out judgement in the visual examination operation of Newton's ring etc. yet.
In addition, improve the rigidity of goods integral body by the isolation support plate member that adopts the bending stiffness that has particular range as mentioned above, therefore, even if be installed on during before dispatching from the factory and after dispatching from the factory before the display surface during be added with some loads, can not cause breaking of nesa coating etc. because of the bending of goods yet.
Have, any embodiment by among the above-mentioned various embodiment of appropriate combination can obtain the effect that has separately again.
More than, done to prove absolutely with regard to desirable execution mode of the present invention with reference to accompanying drawing, but those skilled in the art that scholar understands how they are made various distortion or remodeling.Only otherwise deviate from the appending claims regulation, such distortion or remodeling all belong to scope of the present invention.
Claims (3)
1. touch-screen with adhesive linkage, it is to comprise in order to adhesive linkage (9) that touch screen body (1) and display (20) is bonding comprehensively and the touch-screen with adhesive linkage of peeling off discarded isolation support plate member (10) when touch-screen uses from this adhesive linkage (9), this touch screen body is provided with: below the top insulated substrate (2) that transparent plastic sheet constitutes, formed the upper electrode plate of the upper electrode (3) that constitutes by nesa coating, and the lower electrode (5) that the formation nesa coating constitutes on the bottom insulated substrate (4) that transparent plastic sheet constitutes and between upper electrode plate and lower electrode, sandwich air layer (6) and dispose the lower electrode plate that forms in opposite directions;
Describedly peel off discarded isolation support plate member (10) and adopt transparent plastic sheet, the bending stiffness when the square-section width b of described isolation support plate member (10) is 12cm under the normal temperature is 0.3～40kgfcm
2
2. the touch-screen with adhesive linkage as claimed in claim 1 is characterized in that: the bending stiffness when the described width b that peels off the square-section of the discarded above-mentioned isolation support plate member of isolation support plate member (10) employing is 12cm under the normal temperature is 1.5～8.0kgfcm
2Transparent plastic sheet.
3. the touch-screen with adhesive linkage as claimed in claim 1 or 2, it is characterized in that: described adhesive linkage (9) is made of from bond layer (9c) the core (9b) and the silicon class of acrylic compounds adhesive linkage (9a), PETG.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP258202/2002 | 2002-09-03 | ||
| JP2002258202 | 2002-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1679129A CN1679129A (en) | 2005-10-05 |
| CN100367428C true CN100367428C (en) | 2008-02-06 |
Family
ID=31973019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038204142A Expired - Fee Related CN100367428C (en) | 2002-09-03 | 2003-09-02 | Touch panel with adhesive layer |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN100367428C (en) |
| HU (1) | HUP0500588A2 (en) |
| MX (1) | MXPA05002383A (en) |
| TW (1) | TWI275026B (en) |
| WO (1) | WO2004023503A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995988B (en) * | 2009-08-19 | 2012-08-15 | 群康科技(深圳)有限公司 | Touch screen |
| WO2011024689A1 (en) * | 2009-08-31 | 2011-03-03 | 旭硝子株式会社 | Peeling device |
| JP5282904B2 (en) * | 2009-10-22 | 2013-09-04 | 東芝ライテック株式会社 | Wall switch device |
| CN102190972B (en) * | 2010-03-14 | 2014-01-29 | 宸鸿科技(厦门)有限公司 | Optical adhesive layer with multilayer structure |
| US10430000B2 (en) * | 2016-08-05 | 2019-10-01 | Innolux Corporation | Touch display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06309101A (en) * | 1991-03-06 | 1994-11-04 | Nissha Printing Co Ltd | Transparent touch panel |
| JPH10222305A (en) * | 1997-02-10 | 1998-08-21 | Nissha Printing Co Ltd | Mounting structure for transparent touch panel |
| JP2000265132A (en) * | 1999-03-11 | 2000-09-26 | Misuzu Kogyo:Kk | Double-sided tape |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2584289Y2 (en) * | 1993-03-31 | 1998-10-30 | 株式会社コスモテック | Double-sided adhesive |
| KR20040027906A (en) * | 2001-08-30 | 2004-04-01 | 니폰샤신인사츠가부시키가이샤 | Mounting structure of re-peelable transparent touch panel and mounting sheet used for it |
-
2003
- 2003-09-02 WO PCT/JP2003/011195 patent/WO2004023503A1/en active Application Filing
- 2003-09-02 TW TW092124203A patent/TWI275026B/en not_active IP Right Cessation
- 2003-09-02 CN CNB038204142A patent/CN100367428C/en not_active Expired - Fee Related
- 2003-09-02 MX MXPA05002383A patent/MXPA05002383A/en active IP Right Grant
- 2003-09-02 HU HU0500588A patent/HUP0500588A2/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06309101A (en) * | 1991-03-06 | 1994-11-04 | Nissha Printing Co Ltd | Transparent touch panel |
| JPH10222305A (en) * | 1997-02-10 | 1998-08-21 | Nissha Printing Co Ltd | Mounting structure for transparent touch panel |
| JP2000265132A (en) * | 1999-03-11 | 2000-09-26 | Misuzu Kogyo:Kk | Double-sided tape |
Also Published As
| Publication number | Publication date |
|---|---|
| HUP0500588A2 (en) | 2005-09-28 |
| TWI275026B (en) | 2007-03-01 |
| WO2004023503A1 (en) | 2004-03-18 |
| TW200405978A (en) | 2004-04-16 |
| CN1679129A (en) | 2005-10-05 |
| MXPA05002383A (en) | 2005-08-03 |
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