WO2007144993A1 - タッチパネル、表示装置及びタッチパネルの製造方法 - Google Patents
タッチパネル、表示装置及びタッチパネルの製造方法 Download PDFInfo
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- WO2007144993A1 WO2007144993A1 PCT/JP2007/051586 JP2007051586W WO2007144993A1 WO 2007144993 A1 WO2007144993 A1 WO 2007144993A1 JP 2007051586 W JP2007051586 W JP 2007051586W WO 2007144993 A1 WO2007144993 A1 WO 2007144993A1
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- WIPO (PCT)
- Prior art keywords
- touch panel
- touch
- touch electrode
- conductive
- film
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims description 31
- 239000000758 substrate Substances 0.000 claims abstract description 147
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 56
- 238000000034 method Methods 0.000 claims description 34
- 239000000956 alloy Substances 0.000 claims description 32
- 229910045601 alloy Inorganic materials 0.000 claims description 32
- 229910052709 silver Inorganic materials 0.000 claims description 29
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 28
- 229910052763 palladium Inorganic materials 0.000 claims description 28
- 239000004332 silver Substances 0.000 claims description 28
- 239000011229 interlayer Substances 0.000 claims description 21
- 239000011521 glass Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 238000000059 patterning Methods 0.000 claims description 8
- 238000001312 dry etching Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 5
- 229910001887 tin oxide Inorganic materials 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910003437 indium oxide Inorganic materials 0.000 claims description 4
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010408 film Substances 0.000 description 175
- 239000004973 liquid crystal related substance Substances 0.000 description 35
- 239000010410 layer Substances 0.000 description 33
- 238000001514 detection method Methods 0.000 description 23
- 229910052782 aluminium Inorganic materials 0.000 description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 15
- 239000011241 protective layer Substances 0.000 description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 12
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 12
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 12
- 238000010168 coupling process Methods 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000005530 etching Methods 0.000 description 8
- 238000004544 sputter deposition Methods 0.000 description 8
- 229910052581 Si3N4 Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 230000008878 coupling Effects 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 238000007641 inkjet printing Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 241000282453 Ursus americanus Species 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0444—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single conductive element covering the whole sensing surface, e.g. by sensing the electrical current flowing at the corners
Definitions
- Touch panel display device, and method of manufacturing touch panel
- the present invention relates to a touch panel, a display device, and a method for manufacturing a touch panel, and more particularly to a touch panel manufactured by photolithography.
- a touch panel is a device that inputs information interactively to an information processing device such as a computer by touching (pressing) with a finger or a pen.
- Touch panels are classified into a resistive film method, a capacitive coupling method, an infrared method, an ultrasonic method, an electromagnetic induction coupling method, and the like according to the operation principle.
- the resistance film type and capacitive coupling type touch panels can be mounted on a display device or the like at a low cost, and thus are commonly used in recent years.
- the capacitive coupling type touch panel includes a transparent touch electrode provided on the entire surface of the substrate, a conductive frame provided on the periphery of the touch electrode, and a plurality of each connected to the frame. Equipped with a position detection electrode and a wiring section that connects between each position detection electrode and the position detection circuit for detecting the touch position, for example, mounted on the front of the display screen of the liquid crystal display panel Is done.
- the capacitively coupled touch panel described above is based on the capacitance of the human body at the point where the touch electrode is touched by touching the front surface of the display screen, that is, the surface of the substrate constituting the touch panel.
- the resistance value between each position detection electrode and the ground point changes, and the position detection circuit is touched based on the change in resistance value between each position detection electrode and the ground point. The position is detected.
- Patent Document 1 describes a method of manufacturing a capacitively coupled touch screen panel (touch panel) that eliminates uneven color at the end of the panel.
- Patent Document 1 Japanese Translation of Special Publication 2004-537107
- the touch electrode in order to increase the position recognition accuracy, has a high resistance, and the frame portion, each position detection electrode, and each wiring portion have a low resistance.
- the touch electrode is made of a transparent conductive film such as an IZO (Indium Zinc Oxide) film, and the frame part, each position detecting electrode and each wiring part are made of a low-resistance metal conductive film such as aluminum. Each is often formed in a separate process.
- the frame is formed after the touch electrode is formed on an insulating substrate such as a glass substrate as in the structure of the touch panel disclosed in Patent Document 1. It is conceivable that the electrode, each position detecting electrode and each wiring part are formed. After the conductive film constituting the frame part, each position detecting electrode and each wiring part is formed, the conductive film is patterned. The surface of the touch electrode that has already been formed is partially etched by the dry etching, and the thickness of the touch electrode may vary within the substrate surface. In this case, the resistance value of the touch electrode varies within the substrate surface, and the position recognition accuracy of the touch panel decreases.
- the glass substrate constituting the liquid crystal display panel is also becoming larger and the thickness of the touch electrode in the substrate surface tends to vary. There is a concern that the position recognition accuracy of the touch panel may decrease.
- the present invention has been made in view of efforts, and an object of the present invention is to provide a touch panel with high position recognition accuracy.
- the present invention is such that a conductive portion is provided between an insulating substrate and a transparent electrode.
- a touch panel includes an insulating substrate, a transparent touch electrode provided on the insulating substrate, and a conductive portion connected to a periphery of the touch electrode.
- the touch electrode is formed after the conductive portion is formed on the insulating substrate. For this reason, when the conductive portion is formed, the touch electrode is not yet formed. Therefore, the touch electrode is not etched when the conductive portion is formed. As a result, the variation in the thickness of the touch electrode in the substrate surface is reduced, and the variation in the resistance value of the touch electrode in the substrate surface is also reduced, so that a decrease in the position recognition accuracy of the touch panel is suppressed. Therefore, it is possible to provide a touch panel with high position recognition accuracy.
- the conductive portion is a frame portion provided along the periphery of the touch electrode, and a wiring portion connected to the touch electrode is connected to the frame portion via the frame portion. May be.
- the electrical signal based on the touch position in the touch electrode is input to the frame portion connected to the periphery of the touch electrode and the wiring portion connected to the frame portion. The position will be detected.
- the frame portion and the wiring portion may be formed of the same material.
- the frame portion has a rectangular frame shape, and four wiring portions are provided so as to be respectively connected to four corners of the frame portion.
- a capacitively coupled touch panel is specifically configured.
- the frame portion and the wiring portion may be formed of an alloy film containing silver and palladium, or an alloy film containing silver, palladium and copper.
- the alloy film when the frame portion and the wiring portion are formed of an alloy film containing silver and palladium, the alloy film is a highly conductive material. A thin film can be formed, and the touch electrode can easily cover the frame portion. In addition, when the frame part and the wiring part are formed of an alloy film containing silver, palladium, and copper, the alloy film can improve reliability such as migration resistance and corrosion resistance. .
- the insulating substrate may be a glass substrate, and an interlayer film may be provided between the insulating substrate and the frame portion and the wiring portion for improving adhesion between the two. .
- the glass substrate and the alloy film containing silver and palladium are generally used.
- the adhesion between the insulating substrate, the frame portion, and the wiring portion is improved by sandwiching the interlayer film between the glass substrate and the alloy film containing silver and palladium.
- the interlayer film may be provided only in a portion overlapping the frame portion and the wiring portion.
- the interlayer film is not provided except for the portion overlapping the frame portion and the wiring portion, that is, in the panel surface (display area in the display device), and thus the transmittance of the touch panel is improved.
- the touch electrode may extend so as to cover the frame portion and the wiring portion.
- the alloy film containing silver and palladium is a material whose electrical resistance is likely to change with time. Therefore, by covering the frame part and the wiring part with the touch electrode, the frame part and the wiring part Changes in electrical resistance over time are suppressed. In addition, by covering the frame portion and the wiring portion with the touch electrode, for example, it is possible to protect the frame portion and the wiring portion from hydrochloric acid in the etching solution when patterning the transparent conductive film to form the touch electrode. become.
- the touch electrode is extended at the end of the wiring portion, and the terminal portion of the wiring portion is constituted by the extended portion of the touch electrode at the end of the wiring portion.
- the touch electrode may be formed of a compound of indium oxide and tin oxide.
- the frame portion and the wiring portion are formed of an alloy film containing silver and palladium, and therefore, oxidation that occurs when the frame portion and the wiring portion are formed of an aluminum film.
- the electrolytic corrosion reaction between a compound of indium and tin oxide, that is, an ITO (Indium Tin Oxide) film and an aluminum film is suppressed.
- the touch panel of the present invention is particularly effective in a display device in which display panels are arranged to face each other.
- a touch panel manufacturing method includes an insulating substrate, a transparent touch electrode provided on the insulating substrate, and a conductive portion connected to the periphery of the touch electrode.
- the touch electrode is formed in the touch electrode forming step after the conductive portion is formed on the insulating substrate in the conductive portion forming step. For this reason, since the touch electrode is not yet formed in the conductive portion forming step, the touch electrode is not etched in the conductive portion forming step. As a result, the variation in the thickness of the touch electrode within the substrate surface is reduced, and the variation in the resistance value of the touch electrode within the substrate surface is also reduced, thereby suppressing a decrease in the position recognition accuracy of the touch panel. Therefore, it is possible to provide a touch panel with high position recognition accuracy.
- the conductive portion is a frame portion provided along a peripheral edge of the touch electrode, and a wiring portion connected to the touch electrode via the frame portion is connected to the frame portion.
- the frame part and the wiring part may be formed.
- the frame portion and the wiring portion are formed at the same time in the conductive portion forming step, the frame portion and the wiring portion are formed without increasing the number of manufacturing steps.
- the metal conductive film may be patterned by dry etching.
- the insulating substrate is a glass substrate, and the conductive portion is formed of an alloy film containing silver and palladium, or an alloy film containing silver, palladium and copper, and before the conductive portion forming step.
- an interlayer film forming step for forming an interlayer film for improving adhesion to the conductive portion on the insulating substrate may be provided.
- the adhesion between the glass substrate and the alloy film containing silver and palladium, or the alloy film containing silver, palladium and copper is generally poor.
- adhesion between the insulating substrate and the conductive portion is improved.
- the interlayer film may be formed on a portion overlapping the conductive portion by a metal mask.
- the interlayer film is not formed except for the portion overlapping the conductive portion (for example, the frame portion and the wiring portion), that is, in the panel surface (display region in the display device), The transmittance is improved.
- the conductive portion is a frame portion provided along the periphery of the touch electrode, and a wiring portion connected to the touch electrode via the frame portion is connected to the frame portion,
- the transparent conductive film may be patterned so as to extend to the end of the wiring portion to form a terminal portion of the wiring portion.
- the conductive portion is provided between the insulating substrate and the transparent electrode, it is possible to provide a touch panel with high position recognition accuracy.
- FIG. 1 is a configuration diagram of a liquid crystal display device 50a according to Embodiment 1.
- FIG. 2 is a plan view of a touch panel 20a constituting the liquid crystal display device 50a.
- FIG. 3 is a cross-sectional view of the touch panel 20a along the line III-III in FIG.
- FIG. 4 is a cross-sectional view of the terminal portion of the touch panel 20a taken along line IV-IV in FIG.
- FIG. 5 is a schematic diagram for explaining the operation principle of a capacitive coupling type touch sensor using a one-dimensional resistor.
- FIG. 6 is a schematic diagram for explaining the operating principle of the touch panel 20a.
- FIG. 7 is a flowchart showing a manufacturing process of the touch panel 20a.
- FIG. 8 is a cross-sectional view of the substrate corresponding to FIG. 3 after the aluminum film 11 is formed.
- FIG. 9 is a cross-sectional view of the substrate corresponding to FIG. 3 after the aluminum film 11 is patterned.
- FIG. 10 is a cross-sectional view of the substrate corresponding to FIG. 3 after the titanium nitride film 12 is formed.
- FIG. 11 is a cross-sectional view of the substrate corresponding to FIG. 3 after the titanium nitride film 12 has been patterned.
- FIG. 12 is a cross-sectional view of the substrate corresponding to FIG. 3 after forming the IZO film 13.
- FIG. 13 is a cross-sectional view of the substrate corresponding to FIG. 3 after patterning the IZO film 13.
- FIG. 14 is a cross-sectional view of the substrate corresponding to FIG. 3 after the silicon nitride film 14 is formed.
- FIG. 15 is a cross-sectional view of the substrate corresponding to FIG. 4 after the titanium nitride film 12 is formed.
- FIG. 16 is a cross-sectional view of the substrate corresponding to FIG. 4 after the titanium nitride film 12 is patterned.
- FIG. 17 is a cross-sectional view of the substrate corresponding to FIG. 4 after the IZO film 13 is formed.
- FIG. 18 is a cross-sectional view of the substrate corresponding to FIG. 4 after patterning the IZO film 13.
- FIG. 19 is a cross-sectional view of the substrate corresponding to FIG. 4 after the silicon nitride film 14 is formed.
- FIG. 20 is a schematic plan view showing the surface resistance of the IZ layer on substrate S1 of the example.
- FIG. 21 is a configuration diagram of a liquid crystal display device 50b according to Embodiment 2.
- FIG. 22 is a configuration diagram of a liquid crystal display device 50c according to Embodiment 3.
- FIG. 23 is a perspective view of a touch panel 20b according to the fourth embodiment.
- FIG. 24 is a cross-sectional view of the second substrate 10ab constituting the touch panel 20b along the line XXIV-XXIV in FIG.
- FIG. 25 shows the first unit constituting the touch panel 20b along the line XXV—XXV in FIG. It is sectional drawing of board lOaa.
- FIG. 26 is a plan view of the touch panel 20c according to the fifth embodiment.
- FIG. 27 is a cross-sectional view of the touch panel 20c along the line XXVn—XXVn in FIG.
- FIG. 28 is a cross-sectional view of the terminal portion of the touch panel 20c taken along line XXVm—XXVm in FIG.
- FIG. 29 is a cross-sectional view of the substrate corresponding to FIG. 27 after the titanium oxide film 18 is formed.
- FIG. 30 is a cross-sectional view of the substrate corresponding to FIG. 27 after the AP film 19 is formed.
- Fig. 31 is a cross-sectional view of the substrate corresponding to Fig. 27 after patterning the AP film 19.
- FIG. 32 is a cross-sectional view of the substrate corresponding to FIG. 27 after the ITO film 13 is formed.
- FIG. 33 is a cross-sectional view of the substrate corresponding to FIG. 27 after the ITO film 13 is patterned.
- FIG. 34 is a cross-sectional view of the substrate corresponding to FIG. 27 after the silicon nitride film 14 is formed.
- FIG. 35 is a cross-sectional view of the substrate corresponding to FIG. 28 after the titanium oxide film 18 is formed.
- FIG. 36 is a cross-sectional view of the substrate corresponding to FIG. 28 after the AP film 19 is formed.
- FIG. 37 is a cross-sectional view of the substrate corresponding to FIG. 28 after patterning the AP film 19.
- FIG. 38 is a cross-sectional view of the substrate corresponding to FIG. 28 after the ITO film 13 is formed.
- FIG. 39 is a cross-sectional view of the substrate corresponding to FIG. 28 after the ITO film 13 is patterned.
- FIG. 40 is a cross-sectional view of the substrate corresponding to FIG. 28 after the silicon nitride film 14 is formed.
- FIG. 41 is a cross-sectional view in the panel surface of the touch panel 20d according to the sixth embodiment.
- FIG. 42 is a cross-sectional view of the terminal portion of the touch panel 20e according to the seventh embodiment.
- FIG. 43 is a cross-sectional view in the panel surface of the touch panel 120a of the comparative example.
- FIG. 44 is a flowchart showing a manufacturing process of the touch panel 120a.
- Fig. 45 is a schematic plan view showing the surface resistance of the IZ layer on the substrate S2 of the comparative example.
- Titanium nitride film (metal conductive film)
- a liquid crystal display device is exemplified as the display device, but the present invention is not limited to each of the following embodiments.
- Embodiment 1 of a touch panel, a liquid crystal display device, and a method for manufacturing the touch panel according to the present invention show Embodiment 1 of a touch panel, a liquid crystal display device, and a method for manufacturing the touch panel according to the present invention.
- FIG. 1 is a schematic configuration diagram of a liquid crystal display device 50a.
- the liquid crystal display device 50a is provided above the liquid crystal display panel 25a, with the liquid crystal display panel 25a having polarizing plates 1 and 2 force S applied to the upper and lower surfaces, respectively.
- a tachino-nonole 20a and a backlight 30 provided below the liquid crystal display panel 25a and for supplying light to the display area of the liquid crystal display panel 25a are provided.
- the liquid crystal display panel 25a includes an active matrix substrate 21 and a color filter substrate 22a that are disposed to face each other, and a liquid crystal layer provided between the substrates 21 and 22a. And 23.
- the active matrix substrate 21 includes an insulating substrate 10b such as a glass substrate, a thin film transistor (TFT) array layer 16 provided on the insulating substrate 1 Ob, and an alignment film provided on the TFT array layer 16 ( (Not shown).
- the TFT array layer 16 is provided on the insulating substrate 10b so as to extend in parallel with each other so as to extend in parallel with each other and a plurality of gate lines (not shown) provided so as to extend in parallel with each other.
- a plurality of source lines (not shown), TFTs (not shown) provided at the intersections of the gate lines and the source lines, and pixel electrodes (not shown) connected to the TFTs.
- the color filter substrate 22a includes an insulating substrate 10c such as a glass substrate, a color filter layer 17 provided on the insulating substrate 10c, and an overcoat layer ( (Not shown), a common electrode (not shown) provided on the overcoat layer, and an alignment film (not shown) provided on the common electrode.
- the color filter layer 17 corresponds to each pixel electrode on the active matrix substrate 21, and a plurality of colored layers (not shown) colored red, green, or blue, respectively, and between the colored layers. And black bear tritas (not shown).
- the liquid crystal layer 23 includes nematic liquid crystal having electro-optical characteristics.
- the polarizing plates 1 and 2 have a function of transmitting only a polarized light component in a specific direction with respect to incident light.
- the touch panel 20a includes an insulating substrate 10a and a touch panel layer 15 provided on the insulating substrate 1Oa.
- FIG. 2 is a plan view of the touch panel 2 Oa.
- 3 is a cross-sectional view in the panel surface of the touch panel 20a taken along line ⁇ _ ⁇ in FIG. 2
- FIG. 4 is a cross-sectional view of the terminal portion of the touch panel 20a taken along line IV-IV in FIG. It is.
- the touch panel layer 15 includes a touch electrode 1 provided in a rectangular shape. 3a, a frame portion F which is a conductive portion provided in a rectangular frame shape along the periphery of the touch electrode 13a, four wiring portions W respectively connected to four corners of the frame portion F, and the touch electrodes 13a, And a protective layer 14a provided so as to cover the frame portion F and each wiring portion W.
- the frame portion F is connected between the insulating substrate 10a and the peripheral edge portion of the touch electrode 13a, thereby being connected to the peripheral edge of the touch electrode 13a.
- each wiring part W is exposed from the protective layer 14a in the terminal part.
- a position detection circuit (not shown) for inputting / outputting a position detection electric signal to / from the touch electrode 13a is connected to each wiring part W in the terminal part.
- the touch panel 20a is grounded via the capacitance of the human body at the point where the touch electrode 13a is touched by touching the surface of the touch electrode 13a via the protective layer 14a.
- a change occurs in the resistance value between the four corners of the frame and the ground point, and the position detection circuit detects the touched position based on the change in the resistance value between the four corners of the frame F and the ground point. It has become.
- a one-dimensional resistor sandwiched between electrodes A and B is shown as a touch electrode for ease of explanation.
- the touch electrode 13a having a two-dimensional extension exhibits the same function as this one-dimensional resistor.
- a resistance r for current-voltage conversion is connected to each of the electrodes A and B. Electrodes A and B are connected to a position detection circuit.
- a voltage of the same homologous potential (current e) is applied between the electrode A and the ground and between the electrode B and the ground. At this time, since electrodes A and B are always at the same potential, no current flows between electrode A and electrode B.
- the impedance of a person is Z
- the current flowing through electrode A is i
- the current flowing through electrode B is i.
- R / R (2r / R + l) i / (i + i) — r / R (Formula 8)
- R / R can be determined from (Equation 8). R / R is
- impedance z Independent of impedance z including human touched by finger. Therefore, impedance
- Equation 8 As long as Z is not zero or infinite, (Equation 8) holds, and changes and conditions due to people and materials can be ignored.
- position detection electrodes A, B, C and D are formed at four corners of the frame portion F (not shown) of the touch electrode 13a. These position detection electrodes A, B, C, and D are connected to a position detection circuit via respective wiring portions W.
- the position detection electrodes A, B, C, and D are applied with an AC voltage having the same homogenous potential, and each wiring portion W (position detection electrodes A, B, C, and D is touched by a finger or the like. ) Are i, i, i and i, respectively. In this case, the same calculation as above,
- Y k + k-(i + i + i + i + i) (Equation 10)
- X is the X coordinate of the touched position on the touch electrode 13a
- Y is the Y coordinate of the touched position on the touch electrode 13a.
- K is offset
- k is double
- the contact position is determined from the measured values of i, i, i and i flowing through the position detection electrodes A, B, C and D. Can do.
- electrodes are arranged at the four corners of the touch electrode 13a, and the current flowing through each electrode is measured to detect the contact position on the two-dimensionally spread surface.
- the number of touch electrodes 13a is not limited to four.
- the minimum number of electrodes required for two-dimensional position detection is 3. By increasing the number of force electrodes to 5 or more, position detection accuracy can be improved.
- the manufacturing method of the present embodiment includes a conductive part forming step, a touch electrode forming step, and a protective layer forming step.
- an aluminum film 11 (thickness of about 2000 A, for example) is formed as a metal conductive film by sputtering on an insulating substrate 1 Oa such as a glass substrate. ).
- a resist film is formed on the aluminum film 11 by applying a resist resin resist film, and then the resist film is exposed and developed. To form a first resist pattern (not shown).
- the aluminum film 11 is formed by wet etching the aluminum film using the first resist pattern as a mask, as shown in FIG.
- a metal conductive film for example, a titanium nitride film 12 (thickness) is formed by sputtering so as to cover the aluminum layer 11a. About 2000 A).
- a resist film is formed on the titanium nitride film 12 by applying a resist resin film, and then the resist film is exposed and developed. To form a second resist pattern (not shown).
- the titanium nitride film 12 is dry-etched using the second resist pattern as a mask, so that the titanium nitride layer 12a as shown in FIG. 11 and FIG. Then, the wiring part W and the frame part F are formed. Thereafter, more preferably, a wet cleaning process may be performed in order to remove the etching residue of the titanium nitride film.
- IZO deposit of St7 in FIG. 7 As shown in FIGS. 12 and 17, a transparent conductive film, for example, IZO (Indium) is formed by a sputtering method so as to cover the wiring portion W and the frame portion F.
- IZO Indium
- Zinc Oxide film 13 (about 100 A thickness) is formed.
- a resist film is applied on the IZO film 13 to form a resist film, and then the resist film is exposed and developed.
- a third resist pattern (not shown) is formed.
- the IZO film 13 is wet etched using the third resist pattern as a mask, so that the touch electrodes 13a and The IZO layer 13b is formed.
- a silicon nitride film 14 (thickness of about 1500 A) is formed by the method.
- a resist film is formed on the silicon nitride film 14 by applying a resist made of a photosensitive resin, and then the resist film is exposed and exposed. Development is performed to form a fourth resist pattern (not shown).
- the silicon nitride film 14 is dry-etched or wet-etched, as shown in FIGS. 3 and 4.
- a protective layer 14a is formed.
- the surface resistances of the aluminum layer lla, the titanium nitride layer 12a and the touch electrode 13a formed as described above are, for example, 0.2 ⁇ , 70 to 400, and 11 ⁇ 0, respectively.
- the surface resistance ( ⁇ ) is an electrical resistance per unit area, which is also called sheet resistance, and is expressed in units of ⁇ / port and ⁇ / sq.
- the touch panel 20a can be manufactured.
- a touch panel 20a having the same configuration as that of the above embodiment was manufactured, and the surface resistance of the touch electrode 13a at that time was measured.
- a touch panel 120a as shown in FIG. 43 was manufactured by the method shown in the flowchart of FIG. 44, and the surface resistance of the touch electrode 113a at that time was measured.
- Stl01 to Stl03, Stl04 to Stl06, Stl07 to Stl09 and StlO to Stll 2 in the flowchart of FIG. 44 St7 to St9, Stl to Stl in the flowchart of FIG. St3, St4 to St6, and StlO to Stl 2 steps were performed, respectively.
- St7 to St9, Stl to Stl in the flowchart of FIG. St3, St4 to St6, and StlO to Stl 2 steps were performed, respectively.
- the constituent members (110a to 115) are shown in the hundreds of reference numerals of the corresponding constituent members (10a to 15) in the touch panel 20a of the above embodiment.
- the touch electrode 113a in the touch panel nore 120a shown in FIG. 43 corresponds to the touch electrode 13a in the touch panel 20a shown in FIG. 3, is made of the same material as the touch electrode 13a, and has the same function as the touch electrode 13a. Become.
- FIG. 20 is a schematic plan view showing the surface resistance of the IZ layer (touch electrode 13a) in the substrate S1 of the example
- FIG. 45 is the IZO layer (touch electrode 113a) in the substrate S2 of the comparative example.
- FIG. 6 is a schematic plan view showing surface resistance.
- C1 to C8 indicate regions in which each cell is formed, and the numerical values on the left vertical axis and the upper horizontal axis indicate one corner of the substrate (upper left corner in the figure). ) From each position.
- Each numerical value in C1 to C8 is a value of the surface resistance of the IZO layer at each measurement point in the substrate.
- the surface resistance at a measurement point of 165 mm long and 45 mm wide is 9.8 ⁇ 10 2 ⁇ . 20 and 45, eight cells (C1 to C8) are At the same time, eight display devices will be manufactured.
- the surface resistance of the IZO layer was 8.3 to 10 2 ⁇ to 1.1 to 10 3 ⁇ , and the variation of the surface resistance value in the substrate surface was small.
- the surface resistance of the layer 0 is 2.8 X 10 3
- the resistance was higher than ⁇ , and the variation of the surface resistance value in the substrate surface was large.
- the “-” mark in FIG. 45 indicates a measurement point that cannot be measured by the measuring device used (HA6100 / RG-1200E manufactured by Napson). At that measurement point, the surface resistance is 1G (giga) ⁇ or more. It is estimated that In the comparative example, since the frame portion F and the wiring portion W were formed by dry etching after forming the touch electrode 113a, the surface of the touch electrode 113 was partially etched by the dry etching, as described above. The variation in the surface resistance of the IZO layer is thought to have increased.
- the touch panel 20a and the manufacturing method thereof according to the present embodiment after the frame portion F and the wiring portion W are formed on the insulating substrate 10a, the conductive portion forming step is performed.
- the touch electrode 13a is formed in the touch electrode forming step. Therefore, since the touch electrode 13a is not yet formed in the conductive portion forming step, the touch electrode 13a is not etched in the conductive portion forming step.
- the variation in the thickness of the touch electrode 13a in the substrate surface is reduced, and the variation in the resistance value of the touch electrode 13a in the substrate surface is also reduced, so that a decrease in the position recognition accuracy of the touch panel 20a can be suppressed. . Therefore, it is possible to provide a capacitive coupling type touch panel with high position recognition accuracy.
- the frame portion F and the wiring portion W are formed at the same time in the conductive portion forming step, the frame portion F and the wiring portion W can be formed without increasing the number of manufacturing steps. I'll do it.
- a high resistance IT ⁇ (Indium Tin Oxide) film, ATO (antimony 'tin oxide) film, etc. using a force sputtering method in which the touch electrode 13a is formed of an IZO film.
- a printing method such as flexographic printing or inkjet printing. It may be formed of T ⁇ nano ink or polymer conductive film.
- the nano ink is an ink in which fine particles having a diameter of several nm are dispersed in a solvent.
- the frame portion F and the wiring portion W are formed of an aluminum film or the like.
- nano ink in which Au or Ag is dispersed using a printing method such as flexographic printing or inkjet printing. You may form by.
- the protective layer 14a is formed of an inorganic insulating film such as a titanium nitride film, but it is formed of an organic SOG (Spin on Glass) film or a photosensitive organic resin film using a spin coating method. It can be formed or formed with an organic insulating film using dry film lamination. Alternatively, the protective layer 14a may be directly formed by forming (patterning) the organic SOG (Spin on Glass) film or the photosensitive organic resin film by flexographic printing or inkjet printing.
- FIG. 21 is a configuration diagram of a liquid crystal display device 50b according to the second embodiment.
- the same portions as those in FIGS. 1 to 20 are denoted by the same reference numerals, and detailed description thereof is omitted.
- the touch panel 20a is incorporated in the liquid crystal display panel 25b.
- the insulating substrate 10a constituting the touch panel 20a becomes the color filter substrate 20b.
- the number of insulating substrates is also less than that of the liquid crystal display device 50a of the first embodiment. According to this, since an insulating substrate such as a glass substrate can be reduced, the weight of the liquid crystal display device can be reduced. Further, since the polarizing plate 1 serves as the outermost surface of the liquid crystal display device 50b and structurally protects the touch panel 20a, it is possible to suppress a decrease in position recognition accuracy of the touch panel 20a due to damage or the like.
- FIG. 22 is a configuration diagram of a liquid crystal display device 50c according to the third embodiment.
- the touch panel 20a is incorporated in the liquid crystal display panel 25c.
- the color filter substrate 22 In c a touch panel layer 15 is formed between the insulating substrate 10a (10c) and the color filter layer 17.
- the polarizing plate 1 serves as the outermost surface of the liquid crystal display device 50b and structurally protects the touch panel 20a, it is possible to suppress a decrease in position recognition accuracy of the touch panel 20a due to damage or the like.
- the capacitive coupling type touch panel 20a is illustrated, but the present invention can also be applied to a resistive film type touch panel as described below.
- FIG. 23 is a perspective view of the touch panel 20b according to the fourth embodiment.
- the touch panel 20b includes a first substrate 10aa and a second substrate 10ab, which are insulating substrates arranged opposite to each other, and an insulating dot space provided between the two substrates. It is equipped with a (not shown).
- the first substrate 10aa has, on its upper surface (second substrate 10ab side), as shown in FIGS. 23 and 25, the touch electrode 13aa provided in a rectangular shape and the opposite side of the touch electrode 13aa facing it. It is provided with a pair of conductive parts 1 laa provided.
- the second substrate 10ab has a rectangular touch electrode 13ab on its lower surface (first substrate 10aa side), and the opposite side of the touch electrode 13ab facing it. It is provided with a pair of conductive parts 1 lab provided.
- the pair of conductive portions 11aa constituting the X coordinate circuit and the pair of conductive portions 11ab constituting the Y coordinate circuit are arranged so as to be orthogonal to each other.
- the conductive portions l laa and l lab are provided on the substrate side of the touch electrodes 13aa and 13ab, respectively.
- Each of the conductive parts l laa and l lab has a position detection circuit (not shown) for inputting / outputting a position detection signal to the touch electrodes 13aa and 13ab via a wiring part (not shown). It is connected. Then, the touch panel 20b touches the upper surface of the second substrate 10ab so that the touch electrode 13aa on the first substrate 10aa and the touch electrode lab on the second substrate 10ab come into contact with each other. A change occurs in the resistance value between laa and l lab and the touched point so that the position detection circuit detects the touched position based on the change in the resistance value. It has become.
- the conductive portions llaa and llab are provided between the first substrate 10aa and the touch electrode 13aa and between the second substrate 10ab and the touch electrode 13ab, respectively. Therefore, after forming the conductive portion l laa on the first substrate 10aa, the touch electrode 13aa is formed, and after forming the conductive portion l lab on the second substrate 10ab, the touch electrode 13ab is formed. become. Therefore, when the conductive portion l laa is formed, the touch electrode 13aa is not yet formed. Therefore, when the conductive portion l laa is formed, the touch electrode 13aa is not etched, and the conductive portion l lab is not formed.
- the touch electrode 13ab Since the touch electrode 13ab is not yet formed when forming the contact electrode 13ab, the touch electrode 13ab is not etched when forming the conductive portion l lab. As a result, variations in the thickness of the touch electrodes 13aa and 13ab in the substrate surface are reduced, and variations in the resistance values of the touch electrodes 13aa and 13ab in the substrate surface are also reduced, thereby suppressing deterioration in the position recognition accuracy of the touch panel.
- the power to do is S. Therefore, it is possible to provide a resistive film type touch panel with high position recognition accuracy.
- FIG. 26 is a plan view of the touch panel 20c according to the fifth embodiment.
- 27 is a cross-sectional view of the touch panel 20c along the line XXVII-XXVII in FIG. 26.
- FIG. 28 is a cross-sectional view of the terminal portion of the touch panel 20c along the line XXVm-XXVm in FIG. FIG.
- the touch panel 20c includes an insulating substrate 10a and a touch panel layer 15 provided on the insulating substrate 10a, as shown in FIGS.
- the touch panel layer 15, as shown in FIGS. 26 and 27, is an interlayer film for improving the adhesion between the insulating substrate 10a and the frame portion F (19a) and the wiring portion W (19a) described later.
- the touch panel 20c includes a wiring portion W (
- Each wiring portion W (19a) is covered with the extending portion of the touch electrode 13a.
- FIGS. 29 to 34 are sectional views of the substrate corresponding to FIG. 27 during the manufacturing process
- FIGS. 35 to 40 are sectional views of the substrate corresponding to FIG. 28 during the manufacturing process.
- the manufacturing method of this embodiment includes an interlayer film forming step, a conductive portion forming step, a touch electrode forming step, and a protective layer forming step.
- a titanium oxide film 18 (having a thickness of about 100 A) is formed as an interlayer film on an insulating substrate 10a such as a glass substrate by a sputtering method.
- an AP film 19 (thickness 1250A, which is an alloy film of silver and palladium, for example, as a metal conductive film is formed on the titanium oxide film 18 by sputtering.
- the AP film 19 may be an alloy film containing silver, palladium, and copper in addition to the above-described alloy film of silver and palladium.
- the AP film 19 is wet-etched with, for example, a weakly acidic etchant containing nitric acid, acetic acid, and phosphoric acid, as shown in FIGS. 31 and 37.
- a weakly acidic etchant containing nitric acid, acetic acid, and phosphoric acid as shown in FIGS. 31 and 37.
- the frame portion F (19a) and the wiring portion W (19a) are formed.
- an ITO (Indium Tin Oxide) film 13 is formed as a transparent conductive film by sputtering so as to cover the frame part F (19a) and the wiring part W (19a). (Thickness of about 100 to 150) is formed.
- the transparent conductive film may be an IZO film or the like as in the above embodiments.
- a resist resin film was applied on the IT ⁇ film 13 to form a resist film, and then the resist film was exposed and developed to obtain a second resist pattern ( (Not shown).
- wet etching is performed on the film 13 with, for example, a weakly acidic etching solution containing hydrochloric acid, as shown in FIGS. 33 and 39. 13a and its extension are formed.
- a photosensitive resin film 14 (thickness of about 20000 A) is bonded as a protective film so as to cover the touch electrode 13a.
- the resin film 14 is exposed and developed to form the protective layer 14a.
- the surface resistances of the AP film 19 and the ITO film 13 formed as described above are, for example, 0.25 ⁇ and 150 ⁇ to: 1000 ⁇ , respectively.
- the touch panel 20c can be manufactured as described above.
- the frame portion F (19a) and the wiring portion W (19a) are formed of a highly conductive alloy film containing silver and palladium. a) and the wiring portion W (19a) can be formed thin, and the touch electrode 13a can easily cover the frame portion F (19a) and the wiring portion W (19a).
- the frame part F (19a) and the wiring part W (19a) are formed of an alloy film containing silver, palladium and copper, the alloy film improves reliability such as migration resistance and corrosion resistance. Can be made.
- the touch electrode 13a is provided so as to cover the frame portion F (19a) and the wiring portion W (19a) formed of an alloy film containing silver and palladium whose electrical resistance is likely to change with time. Since it is extended, it is possible to suppress changes in electrical resistance of the frame portion F (19a) and the wiring portion W (19a) over time. Further, in the touch electrode forming step, the touch electrode 13a is formed so as to cover the frame portion F (19a) and the wiring portion W (19a), so that the frame is formed from hydrochloric acid in the etching solution when patterning the ITO film 13. The force S can protect the part F (19a) and the wiring part W (l 9a).
- the frame portion F (19a) and the wiring portion W (19a) are formed of an alloy film containing silver and palladium, so that the frame portion F and the wiring portion W are made of aluminum.
- a compound of indium oxide and tin oxide generated when formed by a film, that is, an electrolytic corrosion reaction between the ITO film and the aluminum film can be suppressed.
- FIG. 41 is a cross-sectional view in the panel surface of the touch panel 20d according to the sixth embodiment.
- the titanium oxide film 18a is provided only in the portion overlapping the frame portion F (19a) and the wiring portion W (19a). According to this, since the titanium oxide film 18a is not provided except for the portion overlapping the frame portion F (19a) and the wiring portion W (19a), that is, in the panel surface (display area in the liquid crystal display device), the touch panel 20d In addition, the transmittance of the liquid crystal display device including the touch panel 20d can be improved.
- the titanium oxide film 18a can be formed by using a metal mask or the like when forming the film by a sputtering method.
- FIG. 42 is a cross-sectional view of the terminal portion of the touch panel 20e according to the seventh embodiment.
- the configuration in the panel surface is substantially the same as that of the touch panel 20c of the fifth embodiment.
- the fifth embodiment in the terminal section, the fifth embodiment (see FIG. 28).
- the wiring portion W (19a) existing in (1) is omitted, and only the extended portion of the touch electrode 13a laminated on the wiring portion W (19a) is provided in the panel surface. According to this, the alloy film containing silver and palladium constituting the wiring portion W (19a) is not exposed at the terminal portion, and the change with time of the electrical resistance of the wiring portion W (19a) can be suppressed.
- the present invention can provide a touch panel with high position recognition accuracy, and thus is useful for a display device such as a liquid crystal display device including the touch panel.
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- Position Input By Displaying (AREA)
Abstract
Description
Claims
Priority Applications (2)
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US12/297,405 US8243032B2 (en) | 2006-06-12 | 2007-01-31 | Touch panel, display device and touch panel manufacturing method |
JP2008521101A JP4733184B2 (ja) | 2006-06-12 | 2007-01-31 | タッチパネル、表示装置及びタッチパネルの製造方法 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63205724A (ja) * | 1987-02-21 | 1988-08-25 | Nippon Telegr & Teleph Corp <Ntt> | 入力機能装置 |
JP2006011522A (ja) * | 2004-06-22 | 2006-01-12 | Seiko Epson Corp | 入力装置の製造方法、電気光学装置の製造方法、入力装置、電気光学装置、電子機器 |
WO2006054585A1 (ja) * | 2004-11-17 | 2006-05-26 | Sharp Kabushiki Kaisha | タッチパネル表示装置及びタッチパネル |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100474194B1 (ko) * | 1996-03-14 | 2005-08-01 | 세이코 엡슨 가부시키가이샤 | 액정장치및이를이용한전자기기 |
US6488981B1 (en) | 2001-06-20 | 2002-12-03 | 3M Innovative Properties Company | Method of manufacturing a touch screen panel |
-
2007
- 2007-01-31 US US12/297,405 patent/US8243032B2/en active Active
- 2007-01-31 JP JP2008521101A patent/JP4733184B2/ja active Active
- 2007-01-31 WO PCT/JP2007/051586 patent/WO2007144993A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63205724A (ja) * | 1987-02-21 | 1988-08-25 | Nippon Telegr & Teleph Corp <Ntt> | 入力機能装置 |
JP2006011522A (ja) * | 2004-06-22 | 2006-01-12 | Seiko Epson Corp | 入力装置の製造方法、電気光学装置の製造方法、入力装置、電気光学装置、電子機器 |
WO2006054585A1 (ja) * | 2004-11-17 | 2006-05-26 | Sharp Kabushiki Kaisha | タッチパネル表示装置及びタッチパネル |
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JP2013122783A (ja) * | 2008-02-18 | 2013-06-20 | Trendon Touch Technology Corp | 静電容量タッチパネル |
JP2009193587A (ja) * | 2008-02-18 | 2009-08-27 | Tpk Touch Solutions Inc | 静電容量タッチパネル |
JP2009259063A (ja) * | 2008-04-18 | 2009-11-05 | Gunze Ltd | タッチパネルおよびその製造方法 |
JP2010040424A (ja) * | 2008-08-07 | 2010-02-18 | Shin Etsu Polymer Co Ltd | タッチセンサの製造方法 |
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WO2011030773A1 (ja) * | 2009-09-11 | 2011-03-17 | 日本写真印刷株式会社 | 狭額縁タッチ入力シートとその製造方法および狭額縁タッチ入力シートに用いる導電性シート |
JP2011060146A (ja) * | 2009-09-11 | 2011-03-24 | Nissha Printing Co Ltd | 狭額縁タッチ入力シートとその製造方法 |
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US8709265B2 (en) | 2009-11-26 | 2014-04-29 | Sharp Kabushiki Kaisha | Method for manufacturing touch panel and method for manufacturing display device provided with touch panel |
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KR20150045238A (ko) * | 2013-10-18 | 2015-04-28 | 삼성디스플레이 주식회사 | 터치 스크린 패널 및 그 제조방법 |
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WO2017038020A1 (ja) * | 2015-09-03 | 2017-03-09 | 凸版印刷株式会社 | カラーフィルタ及びこれを用いた液晶ディスプレイ |
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JP4733184B2 (ja) | 2011-07-27 |
JPWO2007144993A1 (ja) | 2009-10-29 |
US20090096759A1 (en) | 2009-04-16 |
US8243032B2 (en) | 2012-08-14 |
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