WO2013008675A1 - Panneau tactile et dispositif d'affichage à panneau tactile - Google Patents

Panneau tactile et dispositif d'affichage à panneau tactile Download PDF

Info

Publication number
WO2013008675A1
WO2013008675A1 PCT/JP2012/066948 JP2012066948W WO2013008675A1 WO 2013008675 A1 WO2013008675 A1 WO 2013008675A1 JP 2012066948 W JP2012066948 W JP 2012066948W WO 2013008675 A1 WO2013008675 A1 WO 2013008675A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
touch panel
inorganic
transparent electrode
light shielding
Prior art date
Application number
PCT/JP2012/066948
Other languages
English (en)
Japanese (ja)
Inventor
安弘 横井
聖 中原
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2013008675A1 publication Critical patent/WO2013008675A1/fr

Links

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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present invention relates to a touch panel and a display device with a touch panel, and more particularly to a cover integrated touch panel and a display device with a touch panel.
  • a touch panel capable of detecting a position touched by a pen or a finger on the operation surface, that is, a touch position is known.
  • Japanese Patent Application Laid-Open No. 2009-301767 discloses an overcoat layer having a film thickness of 2 to 3 ⁇ m, a film thickness of 10 to 20 nm on the one surface of a transparent substrate having a light-shielding layer having a film thickness of 0.5 to 1.5 ⁇ m on one surface.
  • a touch panel in which transparent electrode layers (transparent conductive films) are sequentially laminated is disclosed.
  • the adhesion between the overcoat layer and the transparent electrode layer is not sufficient.
  • An object of the present invention is to obtain a configuration of a touch panel that is free from bubbles and foreign matter and has excellent adhesion of a transparent electrode layer in a cover-integrated touch panel.
  • the touch panel disclosed below includes a cover member disposed on the viewer side and a plurality of layers stacked using the cover member as a substrate.
  • the plurality of layers include a transparent electrode layer made of an inorganic material, and the transparent electrode layer is in contact with the inorganic material in the direction of the viewer.
  • the cover-integrated touch panel it is possible to obtain a configuration of a touch panel that is free from bubbles and foreign matter and has excellent adhesion of the transparent electrode layer.
  • FIG. 1 is a cross-sectional view schematically illustrating a schematic configuration of a touch panel according to a first embodiment of the present invention and a display device with a touch panel including the touch panel.
  • FIG. 2A is a diagram illustrating one of manufacturing processes of the touch panel according to the first embodiment.
  • FIG. 2B is a diagram illustrating one of manufacturing processes of the touch panel according to the first embodiment.
  • FIG. 2C is a diagram illustrating one of manufacturing processes of the touch panel according to the first embodiment.
  • FIG. 2D is a diagram illustrating one of manufacturing processes of the touch panel according to the first embodiment.
  • FIG. 2E is a diagram illustrating one of manufacturing processes of the touch panel according to the first embodiment.
  • FIG. 1 is a cross-sectional view schematically illustrating a schematic configuration of a touch panel according to a first embodiment of the present invention and a display device with a touch panel including the touch panel.
  • FIG. 2A is a diagram illustrating one of manufacturing processes of the touch panel according to the first
  • FIG. 3 is a cross-sectional view schematically showing a schematic configuration of a touch panel according to a comparative example and a display device with a touch panel including the touch panel.
  • FIG. 4 is a plan view schematically showing a schematic configuration of a touch panel according to a modified example of the first embodiment.
  • FIG. 5 is a sectional view taken along line VV in FIG.
  • FIG. 6A is a diagram illustrating one of manufacturing processes of the touch panel according to the modified example of the first embodiment.
  • FIG. 6B is a diagram illustrating one of manufacturing processes of the touch panel according to the modified example of the first embodiment.
  • FIG. 6C is a diagram illustrating one of manufacturing processes of the touch panel according to the modified example of the first embodiment.
  • FIG. 6A is a diagram illustrating one of manufacturing processes of the touch panel according to the modified example of the first embodiment.
  • FIG. 6B is a diagram illustrating one of manufacturing processes of the touch panel according to the modified example of the first embodiment.
  • FIG. 6C is
  • FIG. 6D is a diagram illustrating one of manufacturing processes of the touch panel according to the modified example of the first embodiment.
  • FIG. 6E is a diagram illustrating one of manufacturing processes of the touch panel according to the modified example of the first embodiment.
  • FIG. 7 is sectional drawing which shows typically schematic structure of the touchscreen concerning the 2nd Embodiment of this invention, and a display apparatus with a touchscreen provided with this touchscreen.
  • FIG. 8 is sectional drawing which shows typically schematic structure of the touchscreen concerning the 3rd Embodiment of this invention, and a display apparatus with a touchscreen provided with this touchscreen.
  • FIG. 9 is sectional drawing which shows typically schematic structure of the touchscreen concerning the 4th Embodiment of this invention, and a display apparatus with a touchscreen provided with this touchscreen.
  • a touch panel includes a cover member disposed on an observer side and a plurality of layers stacked using the cover member as a substrate.
  • the plurality of layers include a transparent electrode layer made of an inorganic material.
  • the transparent electrode layer is in contact with the inorganic material in the direction of the observer (first configuration).
  • a plurality of layers forming the touch panel are stacked using the cover member as a substrate. Thereby, there is no process of bonding the touch panel and the cover, which are produced as separate bodies. Therefore, it is possible to eliminate the mixing of bubbles and foreign matters resulting from this process.
  • the transparent electrode layer is formed in contact with the inorganic material, a structure with high adhesion of the transparent electrode layer can be obtained.
  • the inorganic material in contact with the transparent electrode layer can be the cover member (second configuration).
  • the transparent electrode layer is formed directly on the cover member. Therefore, the number of layers forming the touch panel is reduced, and a configuration with high transmittance can be obtained.
  • the plurality of layers may include an inorganic layer made of an insulating inorganic material and covering one surface of the cover member.
  • the inorganic material in contact with the transparent electrode layer can be the inorganic layer (third configuration).
  • the adhesiveness of the transparent electrode layer can be enhanced by covering with an inorganic layer made of an inorganic material regardless of the material of the cover member.
  • the plurality of layers include an organic layer made of an insulating organic material that covers one surface of the cover member, and an inorganic material made of an insulating inorganic material that covers the organic layer. Layer may be included.
  • the inorganic material in contact with the transparent electrode layer can be the inorganic layer (fourth configuration).
  • the above configuration has an organic layer.
  • the organic layer is easy to form a relatively flat layer. Then, an inorganic layer is formed in contact with the organic layer. Therefore, the transparent electrode layer can be produced on a flat plane.
  • the plurality of layers include a wiring layer electrically connected to the transparent electrode layer, and a light shielding layer provided closer to the viewer than the wiring layer. Further, it may be included (fifth configuration).
  • the plurality of layers cover the wiring layer electrically connected to the transparent electrode layer, a light shielding layer provided closer to the viewer than the wiring layer, and the light shielding layer.
  • An inorganic layer made of an insulating inorganic material may be further included.
  • the wiring layer can be formed in contact with the inorganic layer (sixth configuration).
  • the light shielding layer is covered with the insulating inorganic layer.
  • the wiring layer is formed in contact with this inorganic layer.
  • this inorganic layer prevents the wiring layer from being short-circuited when the light shielding layer is made of a conductive material. Furthermore, this inorganic layer protects the light shielding layer from the process in forming the transparent electrode layer and the wiring layer.
  • the plurality of layers may further include a wiring layer electrically connected to the transparent electrode layer and a light shielding layer provided closer to the viewer than the wiring layer.
  • the light shielding layer is covered with the inorganic layer, and the wiring layer can be formed in contact with the inorganic layer (seventh configuration).
  • a display device with a touch panel includes a display device capable of displaying an image and the touch panel having any one of the first to seventh configurations.
  • FIG. 1 is sectional drawing which shows typically schematic structure of the touchscreen 10 concerning the 1st Embodiment of this invention, and the display apparatus 1 with a touchscreen provided with the touchscreen 10.
  • the display device with a touch panel 1 includes a touch panel 10 and a display device 90 capable of displaying an image.
  • the display device 90 is, for example, a liquid crystal display.
  • the touch panel 10 includes a transparent substrate 11, a light shielding layer 12, an inorganic layer 13, a transparent electrode layer 14, wiring 15, a protective film 16, and an FPC (Flexible Printed Circuit: flexible printed circuit board) 17.
  • FPC Flexible Printed Circuit: flexible printed circuit board
  • the transparent substrate 11 is disposed on the opposite side of the display device 90, that is, on the viewer side.
  • the transparent substrate 11 also serves as a cover when the touch panel 10 is used.
  • the transparent substrate 11 can be made of an insulating material that is excellent in translucency. In the present embodiment, alkali glass is used as the transparent substrate 11.
  • the light shielding layer 12 is formed in a frame shape, for example, on the periphery of the surface of the transparent substrate 11 on the display device 90 side.
  • a metal such as aluminum, molybdenum, silver, copper, or chromium, an alloy, an oxide thereof, or a stacked layer thereof can be used.
  • the light shielding layer 12 preferably has a multilayer structure in which a material having low reflectance and a material having high light shielding properties are stacked. Further, as the light shielding layer 12, an organic layer such as a resin containing black ink or the like can be used.
  • An inorganic layer 13 made of an insulating inorganic material is formed so as to cover the light shielding layer 12.
  • the inorganic layer 13 for example, a layer made of silicon nitride, silicon oxide, or the like can be used.
  • the thickness of the inorganic layer 13 is not limited to this, but is, for example, 0.3 to 0.6 ⁇ m.
  • the transparent electrode layer 14 is directly formed on the transparent substrate 11 in this embodiment.
  • the transparent electrode layer 14 can be a film made of ITO (Indium Tin Oxide) or IZO (Indium Zinc Oxide).
  • the transparent electrode layer 14 forms a capacitance between the finger or the input device that is in contact with the transparent substrate 11.
  • the touch panel 10 calculates the position of the finger or the input device from the change in capacitance. That is, the touch panel 10 according to the present embodiment is a capacitive touch panel.
  • the wiring 15 is formed in partial contact with the transparent electrode layer 14.
  • the wiring 15 preferably has a low electric resistance, and a metal such as aluminum, molybdenum, titanium, tantalum, copper, silver, or gold, an alloy, or a laminate of these can be used.
  • the wiring 15 is formed at a position overlapping the light shielding layer 12 with the inorganic layer 13 interposed therebetween. Thereby, the wiring 15 is not visually recognized from the observer side.
  • a protective film 16 is formed so as to cover the transparent substrate 11, the inorganic layer 13, the transparent electrode layer 14, and the wiring 15.
  • an acrylic or siloxane transparent resin can be used as the protective film 16.
  • a part of the wiring 15 is exposed without being covered with the protective film 16, and forms a terminal portion 15a.
  • the terminal portion 15a is connected to the FPC 17 by, for example, crimping.
  • the FPC 17 is connected to an external drive circuit (not shown). Note that the external drive circuit may be provided on the transparent substrate 11 or the FPC 17.
  • the light shielding layer 12 is formed on the peripheral edge of one surface of the transparent substrate 11 (FIG. 2A).
  • the light shielding layer 12 can be formed by depositing a metal such as chromium by sputtering using the central portion of the transparent substrate 11 as a mask. Further, an organic layer containing black ink or the like may be formed by a printing method or the like instead of metal as the light shielding layer 12.
  • an inorganic layer 13 is formed so as to cover the light shielding layer 12 (FIG. 2B).
  • the inorganic layer 13 can be formed by a CVD (Chemical Vapor Deposition) method or the like using the central portion of the transparent substrate 11 as a mask.
  • the transparent electrode layer 14 is formed by sputtering or CVD (FIG. 2C).
  • a metal mask or the like may be disposed on the inorganic layer 13 so that the transparent electrode layer 14 is not formed, or the transparent electrode layer 14 may be formed and then removed by etching.
  • a conductive film to be the wiring 15 is formed by sputtering or CVD. Then, a resist pattern covering a predetermined region is produced by photolithography. Using this as a mask, the conductive film is etched to form the wiring 15 (FIG. 2D).
  • the protective film 16 is formed by a spin coating method while masking a portion to be the terminal portion 15a. Then, the FPC 17 is connected to the terminal portion 15a by, for example, crimping (FIG. 2E).
  • FIG. 3 is a cross-sectional view schematically showing a schematic configuration of a touch panel 80 according to a comparative example and a display device 8 with a touch panel provided with the touch panel 80.
  • the display device 8 includes a touch panel 80 and a display device 90 that can display an image.
  • the touch panel 80 includes a main body portion 81 and a cover portion 82.
  • the main body 81 includes a transparent substrate 811, a transparent electrode layer 812, wiring 813, a protective film 814, and an FPC 815.
  • the transparent substrate 811 is disposed on the display device 90 side.
  • a transparent electrode layer 812 and wiring 813 are formed on the surface of the transparent substrate 811 opposite to the display device 90.
  • a protective film 814 is formed so as to cover these.
  • a part of the wiring 813 is exposed without being covered with the protective film 814, and forms a terminal portion 813a.
  • the terminal portion 813a is connected to the FPC 815, and the FPC 815 is connected to a drive circuit (not shown).
  • the cover unit 82 includes a transparent substrate 821, a light shielding layer 822, and a protective film 823.
  • the transparent substrate 821 is disposed closer to the observer than the main body portion 81.
  • the light shielding layer 822 is formed in a frame shape, for example, on the periphery of the surface opposite to the viewer side of the transparent substrate 821.
  • the light shielding layer 822 is provided at a position corresponding to the wiring 813 and the terminal portion 814 of the main body portion 81. Thereby, the wiring 813 and the terminal part 814 are not visually recognized from the observer side.
  • a protective film 823 is formed to cover the transparent substrate 821 and the light shielding layer 822.
  • the transparent electrode layer 812, the wiring 813, the protective films 814, 823, and the light shielding layer 822 are the same as those exemplified as the transparent electrode layer 14, the wiring 15, the protective film 16, and the light shielding layer 12, respectively.
  • the transparent substrates 811 and 821 may be an inorganic material or an organic material.
  • the transparent substrates 811 and 821 may be made of different materials.
  • the touch panel 80 is manufactured by bonding the main body portion 81 and the cover portion 82 together. At this time, bubbles and foreign matters may be mixed in, which has been a cause of yield reduction.
  • the touch panel 10 according to the first embodiment of the present invention, there is no step of bonding the touch panel and the cover manufactured separately as described above. Therefore, it is possible to eliminate the mixing of bubbles and foreign matters resulting from this process.
  • acrylic glass is used as the transparent substrate 11.
  • the transparent electrode layer 14 is directly formed on the transparent substrate 11. Since the transparent electrode layer 14 is an inorganic material, a structure with high adhesion can be obtained by forming it on acrylic glass, which is an inorganic material.
  • the light shielding layer 12 is covered with the inorganic layer 13.
  • the wiring 15 is formed in contact with the inorganic layer 13.
  • the wiring 15 is made of an inorganic material as described above, and has high adhesion with the inorganic layer 13. Thereby, the adhesion of the wiring 15 can be improved regardless of the material of the light shielding layer 12.
  • the light shielding layer 12 can be protected from the step of forming the transparent electrode layer 14 and the wiring 15 by the inorganic layer 13, for example, a step of sputtering of a metal material, removal of a developer in photolithography, or etching. it can. Furthermore, when the light shielding layer 12 is a conductor, it is possible to prevent the wiring 15 from coming into direct contact with the light shielding layer 12 and short-circuiting.
  • the transparent electrode layer 14 is described as a single layer.
  • the transparent electrode layer 14 may have a multilayer structure with an interlayer insulating film interposed therebetween.
  • the touch panel 20 according to a modification of the present embodiment will be described with reference to FIG.
  • the description is abbreviate
  • FIG. 4 is a plan view schematically showing a schematic configuration of the touch panel 20.
  • the transparent electrode layer 14 includes a plurality of first direction electrodes 141 extending in the left-right direction in FIG. 4 and a plurality of second direction electrodes 142 extending in the up-down direction. Each electrode is connected to the wiring 15 at least at one end point thereof.
  • the plurality of wirings 15 are collected at one place to form a terminal portion 15a.
  • the wiring 15 and the terminal portion 15 a are covered with the light shielding layer 12. Thereby, the wiring 15 and the terminal part 15a are not visually recognized from the observer side.
  • the first direction electrode 141 includes a plurality of island-shaped electrode portions 141a and a bridge portion 141b that connects them to each other.
  • FIG. 5 is a sectional view taken along line VV in FIG. As shown in FIG. 5, the island-shaped electrode portion 141a and the bridge portion 141b are formed in different layers with an interlayer insulating film 143 interposed therebetween. The island-shaped electrode portion 141a and the bridge portion 141b are electrically connected through the contact hole 143a. Accordingly, the first direction electrode 141 is disposed so as to straddle the second direction electrode 142, and the first direction electrode 141 and the second direction electrode 142 are not in contact with each other.
  • a wiring 15 is formed on the inorganic layer 13.
  • the wiring 15 is partially in contact with the interlayer insulating film 143 of the transparent electrode layer 14, and is electrically connected to the island-shaped electrode portion 141a of the first direction electrode 141 through the contact hole 143b.
  • the wiring 15 is also electrically connected to the second direction electrode 142 through another contact hole.
  • the light shielding layer 12 and the inorganic layer 13 are formed on the transparent substrate 11 in the same manner as the touch panel 10 (FIG. 6A).
  • a conductive film to be the island-shaped electrode portion 141a of the first direction electrode 141 and the second direction electrode 142 is formed by sputtering or CVD. Then, a resist pattern covering a predetermined region is produced by photolithography. Using this as a mask, the conductive film is etched to form the island-shaped electrode portion 141a and the second direction electrode 142 of the first direction electrode 141 (FIG. 6B). In this step, a metal mask or the like may be disposed on the inorganic layer 13 so that the conductive film is not formed, or the conductive film may be formed and then removed by etching.
  • an interlayer insulating film 143 is formed by a CVD method. Then, a resist pattern that covers the regions other than the regions where the contact holes 143a and 143b are to be formed is produced by photolithography. Using this as a mask, the interlayer insulating film 143 is etched to form contact holes 143a and 143b (FIG. 6C). Note that an interlayer insulating film 143 may or may not be formed on the inorganic layer 13. Alternatively, a metal mask or the like may be disposed so that the interlayer insulating film 143 is not formed, or the interlayer insulating film 143 may be formed and then removed by etching.
  • a conductive film to be the bridge portion 141b of the first direction electrode 141 is formed by sputtering or CVD. Then, a resist pattern covering a predetermined region is produced by photolithography. Using this as a mask, the conductive film is etched to produce the bridge portion 141b of the first direction electrode 141. Similarly, the wiring 15 is produced (FIG. 6D).
  • the conductive film to be the bridge portion 141 b of the first direction electrode 141 may be formed of the same material as the wiring 15 and manufactured simultaneously with the wiring 15.
  • the protective film 16 is formed by a spin coating method while masking the portion to be the terminal portion 15a (FIG. 6E).
  • the transparent electrode layer 14 can take various configurations.
  • the island-shaped electrode portion 141a of the first direction electrode 141 and the second direction electrode 142 are arranged in the same layer, but they may be arranged in different layers.
  • the first direction electrode 141 and the second direction electrode 142 can take various shapes.
  • the touch panel 10 may be a surface capacitive method.
  • the transparent electrode layer 14 may be formed uniformly on the transparent substrate 11.
  • FIG. 7 is sectional drawing which shows typically schematic structure of the touchscreen 30 concerning the 2nd Embodiment of this invention, and the display apparatus 3 with a touchscreen provided with the touchscreen 30.
  • the display device 3 with a touch panel includes a touch panel 30 and a display device 90 capable of displaying an image.
  • the touch panel 30 includes a transparent substrate 11, a light shielding layer 32, a transparent electrode layer 14, a wiring 15, a protective film 16, and an FPC 17. That is, the touch panel 30 is different from the touch panel 10 in that the configuration of the light shielding layer 32 is different and the inorganic layer 13 is not provided.
  • the light shielding layer 32 is made of an insulating inorganic material. Therefore, even if the wiring 15 is formed directly on the light shielding layer 32, it is possible to improve the adhesion without causing a short circuit.
  • the step of forming the inorganic layer can be omitted.
  • FIG. 8 is sectional drawing which shows typically schematic structure of the touchscreen 40 concerning the 3rd Embodiment of this invention, and the display apparatus 4 with a touchscreen provided with the touchscreen 40.
  • the display device 4 with a touch panel includes a touch panel 40 and a display device 90 capable of displaying an image.
  • the touch panel 40 includes a transparent substrate 41, a light shielding layer 12, an inorganic layer 43, a transparent electrode layer 14, wirings 15, a protective film 16, and an FPC 17. That is, the touch panel 40 differs from the touch panel 10 in the configuration of the transparent substrate and the inorganic layer.
  • the transparent substrate 41 may use either an organic material or an inorganic material.
  • the transparent substrate 41 is, for example, a plastic film such as an acrylic resin.
  • an inorganic layer 43 made of an insulating inorganic material is covered with the light shielding layer 12 and the transparent substrate 41 to form an inorganic layer 43 made of an insulating inorganic material.
  • the inorganic layer 43 similarly to the inorganic layer 13, a layer made of silicon nitride, silicon oxide, or the like can be used.
  • the thickness of the inorganic layer 43 is not limited to this, but is, for example, 0.3 to 0.6 ⁇ m.
  • the transparent electrode layer 14 is formed on the inorganic layer 43.
  • the transparent electrode layer 14 is made of an inorganic material such as ITO or IZO and has good adhesion to the inorganic layer 43. Therefore, the adhesion of the transparent electrode layer 14 can be enhanced regardless of the material of the transparent substrate 41.
  • the wiring 15 is also formed in the inorganic layer 43. Therefore, the adhesion of the wiring 15 can be improved regardless of the material of the light shielding layer 12.
  • the inorganic layer 43 covers at least one surface of the transparent substrate 41 (the surface on which the light shielding layer 12 is formed).
  • the inorganic layer 43 is preferably configured to cover two or more transparent substrates 41 (up to six surfaces including side surfaces). This is because the surface of the transparent substrate 41 is protected by being covered with the inorganic layer 43, and the transparent substrate 41 can be prevented from being damaged.
  • FIG. 9 is sectional drawing which shows typically schematic structure of the touchscreen 50 concerning the 4th Embodiment of this invention, and the display apparatus 5 with a touchscreen provided with the touchscreen 50.
  • the display device 5 with a touch panel includes a touch panel 50 and a display device 90 capable of displaying an image.
  • the touch panel 50 includes a transparent substrate 41, a light shielding layer 12, an inorganic layer 53, a transparent electrode layer 14, wirings 15, a protective film 16, an FPC 17, and an organic layer 58. That is, the touch panel 50 is further provided with an organic layer 58 in addition to the configuration of the inorganic layer as compared with the touch panel 40.
  • an organic layer 58 made of an insulating organic material is formed on the entire surface of the transparent substrate 41 on which the light shielding layer 12 is formed, covering the light shielding layer 12 and the transparent substrate 41.
  • the organic layer 58 is formed by, for example, forming an acrylic or siloxane transparent resin into a film using a spin coater or a slit coater. Note that it is preferable to use a material having good adhesion to both the organic material and the inorganic material as the organic layer 58.
  • an inorganic layer 53 made of an insulating inorganic material is formed on the organic layer 58.
  • a film made of silicon nitride, silicon oxide, or the like can be used similarly to the inorganic layer 13.
  • the thickness of the inorganic layer 53 is not limited to this, but is, for example, 0.3 to 0.6 ⁇ m.
  • the transparent electrode layer 14 is formed on the inorganic layer 53.
  • the transparent electrode layer 14 is made of an inorganic material such as ITO or IZO and has good adhesion to the inorganic layer 53. Therefore, the adhesion of the transparent electrode layer 14 can be enhanced regardless of the material of the transparent substrate 41.
  • the wiring 15 is also formed in the inorganic layer 53. Therefore, the adhesion of the wiring 15 can be improved regardless of the material of the light shielding layer 12.
  • the organic layer 58 is formed by a spin coater or a slit coater, the surface of the organic layer 58 becomes flat regardless of the step formed by the light shielding layer 12 on the transparent substrate 41. Therefore, the inorganic layer 53 formed on the organic layer 58 is also flat.
  • the step formed by the light shielding layer 12 on the transparent substrate 41 is flattened by the organic layer 58. Therefore, touch panel patterns such as the transparent electrode layer 14 and the wiring 15 can be produced on a flat plane.
  • the present invention can be industrially used as a cover-integrated touch panel and a display device with a touch panel.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

Dans un panneau tactile de type intégré à un boîtier, on obtient une structure permettant d'empêcher des bulles d'air ou des substances étrangères par exemple de s'infiltrer et d'obtenir une excellente adhérence de la couche d'électrode transparente. Plus spécifiquement, un panneau tactile (10) comporte un élément de boîtier (11) ainsi que plusieurs couches superposées sur cet élément de boîtier (11) faisant office de substrat. Ces couches superposées contiennent une couche d'électrode transparente (14) constituée d'un matériau inorganique et cette couche d'électrode transparente (14) est en contact avec un matériau inorganique du côté de l'utilisateur.
PCT/JP2012/066948 2011-07-14 2012-07-03 Panneau tactile et dispositif d'affichage à panneau tactile WO2013008675A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011156081A JP2014178718A (ja) 2011-07-14 2011-07-14 タッチパネルおよびタッチパネル付き表示装置
JP2011-156081 2011-07-14

Publications (1)

Publication Number Publication Date
WO2013008675A1 true WO2013008675A1 (fr) 2013-01-17

Family

ID=47505967

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/066948 WO2013008675A1 (fr) 2011-07-14 2012-07-03 Panneau tactile et dispositif d'affichage à panneau tactile

Country Status (2)

Country Link
JP (1) JP2014178718A (fr)
WO (1) WO2013008675A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014224937A (ja) * 2013-05-17 2014-12-04 大日本印刷株式会社 配線付き表示装置用前面保護板とその製造方法、及び表示装置
JP2015011568A (ja) * 2013-06-28 2015-01-19 大日本印刷株式会社 タッチ検出モジュール、タッチ機能付き表示装置およびタッチパネルセンサ
EP2813926A3 (fr) * 2013-06-14 2015-03-25 Wintek Corporation Plaque de couverture décorative
JP2015153320A (ja) * 2014-02-18 2015-08-24 大日本印刷株式会社 表示装置用前面保護板及び表示装置
JP2016051305A (ja) * 2014-08-29 2016-04-11 小島プレス工業株式会社 車両搭載用タッチパネル

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002196871A (ja) * 2000-12-26 2002-07-12 Bridgestone Corp 透明導電フィルム及びタッチパネル
JP2009169720A (ja) * 2008-01-17 2009-07-30 Smk Corp タッチセンサ
JP2010140370A (ja) * 2008-12-12 2010-06-24 Smk Corp 静電容量式タッチパネル

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002196871A (ja) * 2000-12-26 2002-07-12 Bridgestone Corp 透明導電フィルム及びタッチパネル
JP2009169720A (ja) * 2008-01-17 2009-07-30 Smk Corp タッチセンサ
JP2010140370A (ja) * 2008-12-12 2010-06-24 Smk Corp 静電容量式タッチパネル

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014224937A (ja) * 2013-05-17 2014-12-04 大日本印刷株式会社 配線付き表示装置用前面保護板とその製造方法、及び表示装置
EP2813926A3 (fr) * 2013-06-14 2015-03-25 Wintek Corporation Plaque de couverture décorative
JP2015011568A (ja) * 2013-06-28 2015-01-19 大日本印刷株式会社 タッチ検出モジュール、タッチ機能付き表示装置およびタッチパネルセンサ
JP2015153320A (ja) * 2014-02-18 2015-08-24 大日本印刷株式会社 表示装置用前面保護板及び表示装置
JP2016051305A (ja) * 2014-08-29 2016-04-11 小島プレス工業株式会社 車両搭載用タッチパネル

Also Published As

Publication number Publication date
JP2014178718A (ja) 2014-09-25

Similar Documents

Publication Publication Date Title
JP5372697B2 (ja) 投影型静電容量タッチパネルの製造方法
TWI421581B (zh) Input device and manufacturing method thereof
US8717333B2 (en) Electrostatic capacity type touch panel, display device and process for producing electrostatic capacity type touch panel
JP5178379B2 (ja) 表示装置
JP5538566B2 (ja) タッチパネル及びそれを備えた表示装置並びにタッチパネルの製造方法
WO2013118883A1 (fr) Substrat de panneau tactile
TWI526890B (zh) 觸控面板及其製造方法
US20150060125A1 (en) Touch panel
US20100053114A1 (en) Touch panel apparatus and method for manufacturing the same
WO2015133041A1 (fr) Panneau d'affichage, appareil d'affichage et procédé de fabrication de panneau à cristaux liquides
US20140184952A1 (en) Touch panel
WO2014021223A1 (fr) Panneau tactile et procédé de fabrication de panneau tactile
JP5827972B2 (ja) タッチセンサ一体型表示装置
US9182844B2 (en) Touch panel, display device provided with touch panel, and method for manufacturing touch panel
KR20140070106A (ko) 플렉서블 터치스크린패널 및 그 제조방법
WO2013008675A1 (fr) Panneau tactile et dispositif d'affichage à panneau tactile
TWI498948B (zh) Input device and manufacturing method thereof
WO2013191024A1 (fr) Panneau tactile, appareil d'affichage muni du panneau tactile et procédé de fabrication d'un panneau tactile
WO2014002833A1 (fr) Panneau tactile, appareil d'affichage muni du panneau tactile, et procédé de fabrication de panneau tactile
WO2013146400A1 (fr) Capteur tactile
JP5834488B2 (ja) タッチパネルセンサー付液晶表示装置及びその製造方法
KR102212918B1 (ko) 터치 패널
TWI571782B (zh) 觸控面板及其製造方法
JP2011186977A (ja) 入力装置の製造方法
TWI663535B (zh) 觸摸面板

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12811383

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12811383

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP