WO2013111508A1 - 入力装置、表示装置、および電子機器 - Google Patents
入力装置、表示装置、および電子機器 Download PDFInfo
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- WO2013111508A1 WO2013111508A1 PCT/JP2012/084045 JP2012084045W WO2013111508A1 WO 2013111508 A1 WO2013111508 A1 WO 2013111508A1 JP 2012084045 W JP2012084045 W JP 2012084045W WO 2013111508 A1 WO2013111508 A1 WO 2013111508A1
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- detection electrode
- electrode pattern
- layer
- input device
- inorganic layer
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- 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
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
- G06F1/169—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being an integrated pointing device, e.g. trackball in the palm rest area, mini-joystick integrated between keyboard keys, touch pads or touch stripes
- G06F1/1692—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being an integrated pointing device, e.g. trackball in the palm rest area, mini-joystick integrated between keyboard keys, touch pads or touch stripes the I/O peripheral being a secondary touch screen used as control interface, e.g. virtual buttons or sliders
-
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
Definitions
- the present invention relates to an input device, a display device, and an electronic device.
- an input device for example, a capacitive touch panel that detects an input position by detecting a change in capacitance between a finger and a detection electrode is known.
- a detection electrode is provided on a substrate.
- a protective member including an adhesive layer made of an organic material and a protective layer is bonded to the substrate in order to reduce the possibility that the detection electrode is damaged by contact with the outside (for example, a patent) Reference 1).
- the present invention has been made in view of such circumstances, and its purpose is to reduce the possibility that the detection electrode is corroded while reducing the possibility that the detection electrode is damaged by contact with the outside.
- the present invention relates to an input device, a display device, and an electronic device.
- One aspect of the input device of the present invention is a base, a detection electrode pattern provided on the main surface of the base, and a main surface of the base so as to cover the detection electrode pattern in plan view.
- One aspect of the display device of the present invention includes the input device according to the present invention, a display panel disposed to face the input device, and a housing for housing the display panel.
- One aspect of the electronic apparatus of the present invention includes the display device according to the present invention.
- the input device, the display device, and the electronic apparatus of the present invention have an effect that the detection electrode can be protected while reducing the possibility that the detection electrode is corroded.
- FIG. 3 is a cross-sectional view taken along the line II shown in FIG. 2.
- FIG. 3 is a cross-sectional view taken along line II-II shown in FIG.
- FIG. 3 is a sectional view taken along line III-III shown in FIG. 2.
- 10 is a plan view illustrating a schematic configuration of an input device according to Modification 1.
- FIG. 10 is a sectional view taken along line IV-IV shown in FIG. 9.
- FIG. 10 is a cross-sectional view taken along line VV shown in FIG. 9.
- FIG. 10 is a cross-sectional view taken along the line VI-VI shown in FIG. 9.
- 10 is a plan view showing a schematic configuration of an input device according to Modification 2.
- FIG. It is a top view which shows schematic structure of the input device which concerns on the modification 2, Comprising: It is the figure which saw through the base
- FIG. 14 is a sectional view taken along line VII-VII shown in FIG.
- FIG. 10 is a plan view illustrating a schematic configuration of an input device according to Modification 3.
- FIG. It is a top view which shows schematic structure of the input device which concerns on the modification 3, Comprising: It is the figure which saw through the base
- FIG. 17 is a sectional view taken along line VIII-VIII shown in FIG. 10 is a cross-sectional view illustrating a schematic configuration of a display device according to modification example 4.
- FIG. It is the figure which expanded the area
- each drawing referred to below is a simplified illustration of the main members necessary for explaining the present invention, out of the constituent members of one embodiment of the present invention, for convenience of explanation. Therefore, the input device, the display device, and the electronic device according to the present invention can include arbitrary constituent members that are not shown in the drawings referred to in this specification.
- the input device X1 is a projected capacitive touch panel, and has an input area E1 and a non-input area E2.
- the input area E1 is an area where the user can perform an input operation.
- the non-input area E2 is an area where the user cannot perform an input operation.
- the non-input area E2 according to the present embodiment is located outside the input area E1 so as to surround the input area E1, but is not limited thereto.
- the non-input area E2 may be located in the input area E1, for example.
- the input device X1 is not limited to a projected capacitive touch panel, and may be a surface capacitive touch panel, for example.
- the input device X1 is a cover glass integrated capacitive touch panel, but is not limited thereto.
- the input device X1 may be, for example, a stacked or on-cell capacitive touch panel.
- the input device X1 includes a base 2.
- the substrate 2 includes a first detection electrode pattern 3, a second detection electrode pattern 4, an insulator 5, a light shielding layer 6, a first insulating layer 7, a detection wiring 8, a connection wiring 9, a second insulating layer 10, and an inorganic material to be described later
- the layer 11, the protective member 12, the protective sheet 13, and the adhesive layer 14 are supported. 2, illustration of the insulator 5, the protective sheet 13, and the adhesive layer 14 is omitted for convenience of explanation.
- the base 2 has a first main surface 2a, a second main surface 2b, and an end surface 2c.
- the first main surface 2a is located closer to the user than the second main surface 2b.
- the second main surface 2b is located on the opposite side of the first main surface 2a.
- the end surface 2c is located between the first main surface 2a and the second main surface 2b.
- the base body 2 has a substantially rectangular shape in plan view. For this reason, four end surfaces 2c are provided corresponding to the four sides of the base 2 in plan view.
- the base body 2 may have a substantially polygonal shape or a substantially circular shape in plan view.
- the base 2 has an insulating property and a light-transmitting property with respect to light incident in a direction intersecting the first main surface 2a and the second main surface 2b.
- “translucency” means a property of transmitting part or all of visible light.
- the constituent material of the base 2 is glass.
- the glass is chemically strengthened by ion exchange in order to improve the strength.
- the substrate 2 is a chemically strengthened glass
- the chemically strengthened layer is also included in the substrate 2.
- the constituent material of the base 2 may be plastic instead of glass.
- the first detection electrode pattern 3 generates a capacitance with the user's finger F1 approaching the first main surface 2a of the base 2 corresponding to the input region E1, and the long side of the base 2 in plan view It has a role of detecting the input position in the direction (Y direction in FIG. 2).
- a plurality of first detection electrode patterns 3 are provided side by side in the Y direction on the second main surface 2b of the base 2 corresponding to the input region E1.
- the first detection electrode pattern 3 includes a first detection electrode 3a and a first inter-electrode wiring 3b.
- the first detection electrode 3a has a role of generating a capacitance with the user's finger F1.
- a plurality of first detection electrodes 3a are provided side by side in the short side direction (X direction in FIG. 2) of the base 2 in plan view.
- the first inter-electrode wiring 3b has a role of electrically connecting the first detection electrodes 3a.
- the first inter-electrode wiring 3b is provided between the first detection electrodes 3a adjacent to each other.
- the second detection electrode pattern 4 generates capacitance between the user's finger F1 approaching the first main surface 2a of the base 2 corresponding to the input region E1, and detects the input position in the X direction.
- a plurality of second detection electrode patterns 4 are provided side by side in the X direction on the second main surface 2b of the base 2 corresponding to the input region E1.
- the second detection electrode pattern 4 includes a second detection electrode 4a and a second interelectrode wiring 4b.
- the second detection electrode 4a has a role of generating a capacitance with the user's finger F1.
- a plurality of second detection electrodes 4a are provided side by side in the Y direction.
- the second inter-electrode wiring 4b has a role of electrically connecting the second detection electrodes 4a.
- the second inter-electrode wiring 4b is provided on the insulator 5 across the insulator 5 so as to be electrically insulated from the first inter-electrode wiring 3b between the second detection electrodes 4a adjacent to each other. Yes.
- the insulator 5 is formed on the second main surface 2b of the base 2 so as to cover the first inter-electrode wiring 3b at the intersection C1 where the first detection electrode pattern 3 and the second detection electrode pattern 4 intersect. Is provided. As shown in FIGS. 3 and 4, the insulator 5 has a smaller width as it approaches the protection member 12.
- the insulator 5 has an end face 5a. In addition, it is preferable that the end surface 5a has comprised the curved surface. If the end surface 5a is a curved surface, the possibility that the second inter-electrode wiring 4b located on the insulator 5 will be peeled off can be reduced.
- the constituent material of the insulator 5 include a resin made of an organic material. Examples of the resin made of an organic material include an acrylic resin, an epoxy resin, and a silicone resin.
- the first detection electrode 3a and the second detection electrode 4a have a substantially rhombus shape in plan view, but are not limited thereto, and may be a polygonal shape or a circular shape. If the first detection electrode 3a and the second detection electrode 4a are substantially rhombus in plan view, the gap between the first detection electrode 3a and the second detection electrode 4a can be narrowed. As a result, the areas of the first detection electrode 3a and the second detection electrode 4a provided on the second main surface 2b of the substrate 2 can be relatively increased. For this reason, the electrostatic capacitance which generate
- a conductive member having translucency As a constituent material of the first detection electrode pattern 3 and the second detection electrode pattern 4 described above, a conductive member having translucency can be cited.
- the light-transmitting conductive member include ITO (Indium Zin Oxide), IZO (Indium Zinc Oxide), ATO (Al-Doped Zinc Oxide), tin oxide, zinc oxide, or a conductive polymer. .
- the above-described materials are formed on the second main surface 2b of the substrate 2 by sputtering, vapor deposition, or CVD (Chemical Vapor Deposition). Form a film. And the photosensitive resin is apply
- the light shielding layer 6 has a role of shielding light incident in a direction intersecting the first main surface 2a and the second main surface 2b of the base 2.
- shielding means shielding part or all of visible light by reflection or absorption.
- the light shielding layer 6 is located on the second main surface 2b of the base 2 and is provided in the entire region on the second main surface 2b of the base 2 corresponding to the non-input region E2. For this reason, the light shielding layer 6 can shield the entire region on the base 2 corresponding to the non-input region E2.
- the light shielding layer 6 may be provided in a partial region corresponding to the non-input region E2.
- the light shielding layer 6 may be provided on the first main surface 2a of the base 2 corresponding to the non-input area E2.
- the constituent material of the light shielding layer 6 includes a resin material containing a coloring material.
- the resin material include acrylic resins, epoxy resins, and silicone resins.
- the coloring material include carbon, titanium, and chromium.
- the light shielding layer 6 is not limited to black, and may be colored other than black. Examples of the method for forming the light shielding layer 6 include a screen printing method, a sputtering method, a CVD method, and a vapor deposition method.
- the first insulating layer 7 has a role of protecting the light shielding layer 6 from corrosion due to moisture absorption.
- the first insulating layer 7 is provided on the second main surface 2b of the base 2 corresponding to the non-input area E2. Specifically, the first insulating layer 7 is located on the light shielding layer 6 and covers the light shielding layer 6.
- the constituent material of the first insulating layer 7 include an acrylic resin or an epoxy resin.
- the method for forming the first insulating layer 7 include a transfer printing method, a spin coating method, and a slit coating method.
- the detection wiring 8 has a role of detecting a change in capacitance generated between the first detection electrode pattern 3 and the second detection electrode pattern 4 and the finger F1.
- the detection wiring 8 is provided on the second main surface 2b of the base 2 corresponding to the non-input area E2. Specifically, the detection wiring 8 is located on the first insulating layer 7. For this reason, even if the coloring material contained in the 1st light shielding layer 6 has electroconductivity, possibility that the light shielding layer 6 and the wiring 8 for a detection will electrically conduct can be reduced.
- the first insulating layer 7 may not be provided, and the detection wiring 8 may be provided directly on the light shielding layer 6.
- One end of the detection wiring 8 is located in the external conduction region G1 on the second main surface 2b of the base 2. The other end of the detection wiring 8 is connected to the connection wiring 9.
- the detection wiring 8 is made of a metal thin film so as to be hard and have high shape stability.
- the constituent material of the metal thin film include an aluminum film, an aluminum alloy film, a laminated film of a chromium film and an aluminum film, a laminated film of a chromium film and an aluminum alloy film, a silver film, a silver alloy film, or a gold alloy film.
- the method for forming the metal thin film include a sputtering method, a CVD method, and a vapor deposition method.
- the connection wiring 9 has a role of electrically connecting the first detection electrode pattern 3 and the detection wiring 8 and electrically connecting the second detection electrode pattern 4 and the detection wiring 8.
- the connection wiring 9 is located on the second main surface 2 b of the base 2. Specifically, as shown in FIG. 5, the connection wiring 9 is provided from the input area E1 to the non-input area E2.
- the connection wiring 9 connects the first detection electrode 3 a located at one end of the first detection electrode pattern 3 and the detection wiring 8.
- the connection wiring 9 connects the second detection electrode 4 a positioned at one end of the second detection electrode pattern 4 and the detection wiring 8. Examples of the constituent material and the forming method of the connection wiring 9 include those similar to the first detection electrode pattern 3 and the second detection electrode pattern 4.
- the second insulating layer 10 has a role of protecting the detection wiring 8 from corrosion due to moisture absorption.
- the second insulating layer 10 is provided on the second main surface 2b of the base 2 corresponding to the non-input area E2. Specifically, the second insulating layer 10 is located on the detection wiring 8 and covers the detection wiring 8. Further, the second insulating layer 10 is not provided in the external conduction region G1.
- the same materials as those of the first insulating layer 7 can be used.
- the inorganic layer 11 has a role of protecting the first detection electrode pattern 3 and the second detection electrode pattern 4 from corrosion due to moisture absorption.
- the inorganic layer 11 is provided on the second main surface 2b of the base 2 corresponding to the input region E1.
- the inorganic layer 11 covers the first detection electrode pattern 3 and the second detection electrode pattern 4.
- the inorganic layer 11 covers all of the first detection electrode pattern 3 and the second detection electrode pattern 4 in plan view, but is not limited thereto, and the first detection electrode pattern 3 and the second detection electrode pattern 4 are not limited thereto. You may cover a part of.
- the inorganic layer 11 covers a part of the first detection electrode pattern 3 and the second detection electrode pattern 4, the remaining portions of the first detection electrode pattern 3 and the second detection electrode pattern 4 are, for example, a protective member 12 described later. It is preferable that it is covered with.
- an inorganic material having translucency can be mentioned.
- the light-transmitting inorganic material include silicon dioxide and silicon nitride.
- the method for forming the inorganic layer 11 include a sputtering method, an ion plating method, a screen printing method, and an ink jet printing method.
- the inorganic layer 11 is provided on the second main surface 2b of the base 2 so as to cover the first detection electrode pattern 3 and the second detection electrode pattern 4 in plan view.
- the inorganic material that is a constituent material of the inorganic layer 11 has a property that moisture is less likely to pass through than the organic material. For this reason, in the input device X1, the possibility that the first detection electrode pattern 3 and the second detection electrode pattern 4 are corroded by absorbing moisture can be reduced.
- the inorganic layer 11 is preferably formed to have a relatively small thickness. Specifically, the inorganic layer 11 is preferably formed with a thickness of 0.02 to 0.2 ⁇ m, for example. If the thickness of the inorganic layer 11 is smaller than 0.02 ⁇ m, the first detection electrode pattern 3 and the second detection electrode pattern 4 cannot be effectively protected from corrosion due to moisture absorption. Further, if the thickness of the inorganic layer 11 is larger than 0.02 ⁇ m, the base 2 may be warped due to the difference in thermal expansion coefficient between the inorganic layer 11 and the base 2. Therefore, the inorganic layer 11 is preferably formed with a thickness of 0.02 to 0.2 ⁇ m.
- the first casing 100 and the inorganic layer 11 are brought into contact with each other when the input device X1 is incorporated in the display device Y1, so that the first layer located below the inorganic layer 11 is contacted.
- the detection electrode pattern 3 and the second detection electrode pattern 4 may be damaged.
- the distance from the second main surface 2b of the base 2 to the surface of the inorganic layer 11 in the region where the insulator 5 is located in plan view, and in plan view. The difference between the distance from the second main surface 2b of the base 2 to the surface of the inorganic layer 11 in the region where the insulator 5 is not located is relatively large.
- the input device X1 includes a protection member 12.
- the protective member 12 has an organic layer 12a and a protective layer 12b.
- Examples of the constituent material of the organic layer 12a include acrylic adhesives, silicone adhesives, rubber adhesives, and urethane adhesives.
- Examples of the constituent material of the protective layer 12b include glass or plastic.
- the organic layer 12 a has adhesiveness and is in contact with the inorganic layer 11.
- the protective layer 12b is provided on the organic layer 12a.
- the protection member 12 is provided on the second main surface 2b of the base 2 corresponding to the input region E1.
- the protection member 12 is positioned so as to cover the first detection electrode pattern 3 and the second detection electrode pattern 4 in plan view. For this reason, when the input device X1 is incorporated in the display device Y1, the first detection electrode pattern 3 and the second detection electrode pattern 4 may be damaged by the contact between the first casing 100 and the inorganic layer 11. Can be reduced.
- the inorganic layer 11 and the protective member 12 are positioned on the first detection electrode pattern 3 and the second detection electrode pattern 4, the second main surface of the base 2 in a region where the insulator 5 is positioned in a plan view.
- the difference between the separation distance from 2b to the surface of the protection member 12 and the separation distance from the second main surface 2b of the base 2 to the surface of the protection member 12 in a region where the insulator 5 is not located in plan view is relatively The possibility of becoming large can be reduced. Therefore, the possibility that the intersection C1 is visually recognized by the user can be reduced.
- the inorganic layer 11 is provided on the second main surface 2b of the base 2 so as to cover the first detection electrode pattern 3 and the second detection electrode pattern 4 in plan view.
- the protection member 12 has the organic layer 12a and the protective layer 12b.
- the organic layer 12 a has adhesiveness and is in contact with the inorganic layer 11.
- the protective layer 12b is provided on the organic layer 12a.
- the first detection electrode pattern and the second detection electrode pattern are provided on the second main surface of the base. For this reason, an unevenness
- the inorganic layer provided on these parts also has irregularities. For this reason, when it was going to stick a protective member on an inorganic layer, there existed a possibility that a bubble might enter between an inorganic layer and a protective member. When air bubbles enter between the inorganic layer and the protective member, the parasitic capacitances in the first detection electrode pattern and the second detection electrode pattern vary. For this reason, the detection sensitivity of the input device may vary.
- the protective member corresponding to the input area may be damaged in the manufacturing process of the display device.
- the protective member corresponding to the input area is scratched, the scratch may be visually recognized by the user.
- the protective member provided on the inorganic layer is replaced with a new one. It is necessary to re-attach to the protective member.
- the protective member is removed from the inorganic layer, if the adhesive strength between the protective member and the inorganic layer is relatively large, a part of the protective member may remain on the inorganic layer. . If a part of the protective member remains on the inorganic layer, dust in the atmosphere may adhere to a part of the protective member remaining on the inorganic layer, which may reduce the visibility of the input device. It was.
- the protective member 12 includes an organic layer 12a having an adhesive property and a protective layer 12b.
- the organic layer 12a is in contact with the inorganic layer 11, and a protective layer 12b is provided on the organic layer 12a.
- the adhesive strength between the inorganic material and the organic material is relatively small.
- the protection member 12 can be easily removed from the inorganic layer 11, and the possibility that a part of the organic layer 12 a remains on the inorganic layer 11 can be reduced. That is, the protective member 12 can be easily reattached.
- the protection member 12 is provided only on the inorganic layer 11 corresponding to the input region E1. For this reason, the organic layer 12a is not in contact with members other than the inorganic layer 11, and it becomes easier to remove the protective member 12. Note that the protection member 12 may be provided on the second insulating layer 10 corresponding to the non-input area E2.
- the insulator 5 is provided at the intersection C1.
- the insulator 5 is made of an organic material, the adhesive strength with the organic layer 12a is relatively high. For this reason, when the insulator 5 and the organic layer 12a are in contact, a part of the organic layer 12a may remain on the insulator 5 when the protective member 12 is removed. Therefore, in the present embodiment, the inorganic layer 11 is located on the insulator 5. Specifically, the inorganic layer 11 covers the insulator 5.
- FIGS. 3 and 4 on the end surface 5a of the insulator 5, there are a part where the second inter-electrode wiring 4b is located and a part where the second inter-electrode wiring 4b is not located.
- the surface of the part where the second inter-electrode wiring 4b is not located on the end surface 5a of the insulator 5 is exposed from the second inter-electrode wiring 4b.
- the surface of the part where the second inter-electrode wiring 4b is not located on the end surface 5a of the insulator 5 is referred to as an exposed surface 5aa.
- the inorganic layer 11 is in contact with the exposed surface 5aa. For this reason, the insulator 5 and the organic layer 12a do not contact each other, and when the protective member 12 is removed, the possibility that a part of the organic layer 12a remains on the insulator 5 can be reduced.
- the thickness of the organic layer 12a is larger than the thickness of the inorganic layer 11. For this reason, even if the thickness of the inorganic layer 11 is relatively small, the first detection electrode pattern 3, the second detection electrode pattern 4, and the insulator 5 can be effectively protected.
- the protective sheet 13 has a role of protecting the first main surface 2a of the base 2 from being damaged by the contact of the user's finger F1.
- the protective sheet 13 is provided over the entire surface of the first main surface 2 a of the base 2 via the adhesive layer 14.
- the protective sheet 13 may be provided only on the 1st main surface 2a of the base
- a constituent material of the protective sheet 13 the same material as that of the protective layer 12b can be used.
- the contact bonding layer 14 the thing similar to the organic layer 12a is mentioned.
- a position detection driver (not shown) is electrically connected to the detection wiring 8 located in the external conduction region G1.
- the power supply device (not shown) is electrically connected to the detection wiring 8 located in the external conduction region G1.
- the power supply device supplies a voltage to the first detection electrode pattern 3 and the second detection electrode pattern 4.
- the finger F1 which is a conductor, approaches, contacts, or presses the first main surface 2a of the base 2 corresponding to the input region E1 via the protective sheet 13, the finger F1, the first detection electrode 3a, and the first Capacitance is generated between the two detection electrodes 4a.
- the position detection driver always detects the capacitance generated in the first detection electrode pattern 3 and the second detection electrode pattern 4, and the first detection electrode pattern 3 and the second detection electrode 2 that have detected a capacitance greater than a predetermined value.
- the combination of the detection electrode patterns 4 detects the input position where the user has performed an input operation. In this way, the input device X1 can detect the input position.
- the first detection electrode pattern 3 and the second detection electrode 4 are reduced while reducing the possibility that the first detection electrode pattern 3 and the second detection electrode pattern 4 are damaged by contact with the outside.
- the possibility that the pattern 4 is corroded can be reduced.
- the display device Y1 includes an input device X1, a first housing 100, a display panel 200, a backlight 300, and a circuit board 400.
- the input device X1 is supported by the first housing 100. Specifically, the input device X1 is provided on the support portion 101 of the first housing 100 via the support member P1. Note that the support member P ⁇ b> 1 may not be provided, and the input device X ⁇ b> 1 may be provided directly on the support unit 101 of the first housing 100.
- the constituent material of the first housing 100 include a resin such as polycarbonate, or a metal such as stainless steel and aluminum.
- the display panel 200 has a role of displaying an image.
- the display panel 200 includes an upper substrate 201, a lower substrate 202, a liquid crystal layer 203, and a sealing member 204.
- the upper substrate 201 is disposed to face the second main surface 2b of the base 2 of the input device X1.
- the input device X1 may be provided on the upper substrate 201 via a fixing member.
- the fixing member include a double-sided tape, a thermosetting resin, an ultraviolet curable resin, or a stopper such as a screw.
- the lower substrate 202 is disposed to face the upper substrate 201.
- the constituent material of the upper substrate 201 and the lower substrate 202 include a transparent resin material such as glass or plastic.
- the liquid crystal layer 203 is a display member layer for displaying an image, and is interposed between the upper substrate 201 and the lower substrate 202. Specifically, the liquid crystal layer 203 is sealed in a region between the upper substrate 201 and the lower substrate 202 by the upper substrate 201, the lower substrate 202, and the sealing member 204.
- the display panel 200 according to the present embodiment includes the liquid crystal layer 203 as a display member layer, but is not limited thereto. Instead of the liquid crystal layer 203, a plasma generation layer, an organic EL layer, or the like may be provided.
- the backlight 300 has a role of entering light over the entire lower surface of the display panel 200.
- the backlight 300 is disposed behind the display panel 200.
- the backlight 300 includes a light source 301 and a light guide plate 302.
- the light source 301 is a member that plays a role of emitting light toward the light guide plate 302, and is composed of an LED (Light Emitting Diode).
- the light source 301 does not need to be configured by an LED, and may be configured by, for example, a cold cathode fluorescent lamp, a halogen lamp, a xenon lamp, or an EL (Electro-Luminescence).
- the light guide plate 302 is a member that plays a role of guiding light from the light source 301 substantially uniformly over the entire lower surface of the display panel 200. Note that in the case where a display panel using self-luminous elements is used instead of the display panel 200, the backlight 300 may not be provided.
- the circuit board 400 has a role of supporting electronic components such as a control circuit for controlling the display panel 200 and the backlight 300, a resistor, or a capacitor.
- the circuit board 400 is disposed behind the backlight 300.
- the control circuit located on the circuit board 400 is electrically connected to the display panel 200 and the backlight 300 by a flexible printed wiring board or the like (not shown).
- the circuit board 400 may include a position detection driver for the input device X1.
- a plurality of circuit boards 400 may be provided.
- An example of a constituent material of the circuit board 400 is a resin material.
- the display device Y1 can input various types of information by performing an input operation on the input area E1 of the input device X1 while seeing through the display panel 200 through the input device X1.
- the input device X1 may be provided with a function of presenting various tactile sensations such as a feeling of pressing, a feeling of tracing, and a feeling of touch to the user who has input the information.
- the base body 2 in the input device X1 includes one or more vibrating bodies (for example, piezoelectric elements), and when a predetermined input operation or a predetermined pressing load is detected, the vibrating body is detected at a predetermined frequency. It can be realized by vibrating.
- the display device Y1 includes the input device X1
- the first detection electrode pattern 3 and the second detection electrode pattern 4 are less likely to be damaged due to contact with the outside, and the first The possibility that the detection electrode pattern 3 and the second detection electrode pattern 4 are corroded can be reduced.
- the mobile terminal Z1 is a smartphone terminal.
- the mobile terminal Z1 is not limited to a smartphone terminal, and may be, for example, a mobile phone, a tablet terminal, or an electronic device such as a PDA (Personal Digital Assistant).
- the portable terminal Z1 includes a display device Y1, an audio input unit 501, an audio output unit 502, a key input unit 503, and a second housing 504.
- the voice input unit 501 has a role of inputting a user's voice and the like, and includes a microphone or the like.
- the audio output unit 502 has a role of outputting audio from the other party, and is configured by an electromagnetic speaker or a piezoelectric speaker.
- the key input unit 503 is composed of mechanical keys. Note that the key input unit 503 may be an operation key displayed on the display screen.
- the second housing 504 has a role of accommodating the display device Y1, the audio input unit 501, the audio output unit 502, and the key input unit 503. The second housing 504 may not be provided, and the audio input unit 501, the audio output unit 502, and the key input unit 503 may be accommodated in the first housing 100 of the display device Y1.
- As a constituent material of the second housing 504 the same material as that of the first housing 100 of the display device Y1 can be used.
- the mobile terminal Z1 includes a digital camera function unit, a one-segment broadcasting tuner, a short-range wireless communication unit such as an infrared communication function unit, a wireless LAN module, a Bluetooth (registered trademark) module, and Although various interfaces may be provided, illustration and description of these details are omitted.
- the mobile terminal Z1 since the mobile terminal Z1 includes the display device Y1, the first detection electrode pattern 3 and the second detection electrode pattern 4 are less likely to be damaged by contact with the outside, while the first detection electrode pattern 3 and the second detection electrode pattern 4 are damaged. The possibility that the detection electrode pattern 3 and the second detection electrode pattern 4 are corroded can be reduced.
- the display device Y1 may be various devices such as a programmable display, an electronic notebook, a personal computer, a copying machine, a game terminal device, a television, or a digital camera used for industrial purposes instead of the portable terminal Z1.
- the electronic device may be provided.
- FIG. 8 is a plan view illustrating a schematic configuration of the input device X2 according to the first modification.
- FIG. 9 is a plan view showing a schematic configuration of the input device X2 according to the first modification, and is a view seen through the base 2.
- 10 is a cross-sectional view taken along line IV-IV shown in FIG. 11 is a cross-sectional view taken along the line VV shown in FIG. 12 is a cross-sectional view taken along the line VI-VI shown in FIG. 8 to 12, components having the same functions as those in FIGS. 1 to 4 are given the same reference numerals, and detailed descriptions thereof are omitted.
- illustration of the insulator 5, the protective sheet 13, and the contact bonding layer 14 is abbreviate
- the input device X2 includes an inorganic layer 15 instead of the inorganic layer 11 included in the input device X1.
- the inorganic layer 15 is provided on the second main surface 2b of the base 2 corresponding to the input region E1.
- the inorganic layer 15 covers the first detection electrode pattern 3 and the second detection electrode pattern 4 in plan view.
- the thickness S1 of the inorganic layer 15 located at the corner A1 formed by the second main surface 2b of the substrate 2 and the end surface 5a of the insulator 5 is positioned on the first detection electrode pattern 3 and the second detection electrode pattern 4.
- the thickness S2 of the inorganic layer 15 is larger.
- the thickness of the inorganic layer 15 located at the corner A1 refers to the shortest distance from the corner A1 to the surface of the inorganic layer 15.
- the thickness of the inorganic layer 15 positioned on the first detection electrode pattern 3 and the second detection electrode pattern 4 is the shortest distance from the surface of the first detection electrode pattern 3 and the second detection electrode pattern 4 to the inorganic layer 15. Point to.
- the thickness S1 of the inorganic layer 15 is larger than the thickness S2, the unevenness generated in the inorganic layer 15 can be moderated. For this reason, in the input device X2, compared with the input device X1, it is possible to reduce the possibility of bubbles entering between the inorganic layer 15 and the organic layer 12a.
- the thickness of the inorganic layer 15 located on the first detection electrode 3a may be larger than the sum of the thicknesses of the insulator 5 and the second inter-electrode wiring 4b.
- the surface of the inorganic layer 15 can be formed substantially flat, and the possibility of bubbles entering between the inorganic layer 15 and the organic layer 12a can be further reduced.
- FIG. 13 is a plan view illustrating a schematic configuration of the input device X3 according to the second modification.
- FIG. 14 is a plan view showing a schematic configuration of the input device X3 according to the second modification, and is a view seen through the base 2.
- 15 is a cross-sectional view taken along line VII-VII shown in FIG. 13 to 15, the same reference numerals are given to configurations having the same functions as those in FIGS. 1, 2, and 5, and detailed descriptions thereof are omitted.
- illustration of the insulator 5, the protective sheet 13, and the adhesive layer 14 is omitted for convenience of explanation.
- the input device X3 includes an inorganic layer 16 instead of the inorganic layer 11 included in the input device X1.
- the inorganic layer 16 is located on the second main surface 2b of the base 2 corresponding to the input region E1.
- the inorganic layer 16 covers the first detection electrode pattern 3 and the second detection electrode pattern 4 in plan view.
- the inorganic layer 16 extends on the second insulating layer 10 corresponding to the non-input region E2.
- substrate 2 may curve by the difference of the internal stress of the base
- the second insulating layer 10 is sandwiched between the base 2 and the inorganic layer 16.
- the base 2 is glass made of an inorganic material
- the difference in internal stress between the base 2 and the inorganic layer 16 is small.
- the bend is relaxed. Therefore, in the input device X3, the possibility that the base 2 is curved can be reduced as compared with the input device X1.
- the inorganic layer 16 is not located in the external conduction region G ⁇ b> 1 on the second main surface 2 b of the base 2. Therefore, the detection wiring 8 can be exposed in the external conduction region G1, and the detection wiring 8 can be electrically connected to a flexible printed wiring board (not shown).
- FIG. 16 is a plan view illustrating a schematic configuration of the input device X4 according to the third modification.
- FIG. 17 is a plan view illustrating a schematic configuration of the input device X4 according to the third modification, and is a view seen through the base 2.
- FIG. 18 is a cross-sectional view taken along line VIII-VIII shown in FIG. 16 to 18, the same reference numerals are given to the components having the same functions as those in FIGS. 1, 2, and 5, and the detailed description thereof is omitted.
- the insulator 5, the protective sheet 13, and the adhesive layer 14 are not shown for convenience of explanation.
- the input device X4 includes an inorganic layer 17 instead of the inorganic layer 11 included in the input device X1.
- the inorganic layer 17 is located on the second main surface 2b of the base 2 corresponding to the input region E1.
- the inorganic layer 17 covers the first detection electrode pattern 3 and the second detection electrode pattern 4 in plan view.
- the inorganic layer 17 extends on the second insulating layer 10 corresponding to the non-input region E2.
- the inorganic layer 17 covers the second insulating layer 10.
- the inorganic material has a characteristic of impervious to moisture. For this reason, in the input device X4, as compared with the input device X1, the possibility that the detection wiring 8 absorbs moisture through the second insulating layer 10 and corrodes can be reduced.
- the inorganic layer 17 covers the first insulating layer 7. For this reason, the possibility that the light shielding layer 6 absorbs moisture through the first insulating layer 7 and corrodes can be reduced.
- the inorganic layer 17 is provided away from the end face 2c of the base 2 by a predetermined distance L1 or more.
- the predetermined distance L1 means a distance between the end surface 2c of the substrate 2 and the end portion 17a of the inorganic layer 17 in a sectional view.
- the predetermined distance L1 is preferably 0.1 to 0.5 mm.
- L1 is smaller than 0.1 mm, the possibility of contact between the inorganic layer 17 and an arbitrary member cannot be sufficiently reduced.
- L1 is larger than 0.5 mm, the distance between the light shielding layer 6 and the end face 2c of the base 2 becomes large enough to be visually recognized by the user, and the design of the input device X4 is deteriorated.
- the predetermined distance L1 is preferably 0.1 to 0.5 mm.
- FIG. 19 is a cross-sectional view showing a display device Y2 according to Modification 4.
- FIG. 20 is an enlarged view of a region H1 surrounded by a one-dot chain line shown in FIG. 19 and 20, the same reference numerals are given to configurations having the same functions as those in FIGS. 5 and 6, and detailed descriptions thereof are omitted.
- the display device Y2 instead of the input device X1, the first housing 100, and the display panel 200 provided in the display device Y1, the input device X5, the first housing 600, and the display panel 700 are used. It has.
- the first housing 600 has a role of accommodating the display panel 700, the backlight 300, and the circuit board 400.
- the first housing 600 has a support portion 601.
- the display panel 700 has a role of displaying an image.
- the display panel 700 includes an upper substrate 701, a lower substrate 702, a liquid crystal layer 703, and a sealing member 704.
- the upper substrate 701 is disposed to face the input device X5.
- the lower substrate 702 is disposed below the upper substrate 701 so as to face the seventh substrate 201.
- the liquid crystal layer 703 is located in a region surrounded by the upper substrate 701, the lower substrate 702, and the sealing member 704.
- the lower substrate 702 of the display panel 700 is supported on the support part 601 of the first casing 600.
- the input device X5 is located on the display panel 700.
- the input device X5 includes an inorganic layer 18 and a protective member 19 instead of the inorganic layer 11 and the protective member 12 included in the input device X1.
- the inorganic layer 18 is located on the second main surface 2b of the base 2 corresponding to the input region E1.
- the inorganic layer 18 covers the first detection electrode pattern 3 and the second detection electrode pattern 4 in plan view.
- the inorganic layer 18 covers the second insulating layer 10 corresponding to the non-input area E2.
- the protective member 19 has an organic layer 19a and a protective layer 19b.
- the organic layer 19a has adhesiveness.
- the organic layer 19a is located on the inorganic layer 18 corresponding to the input area E1 and the non-input area E2.
- Examples of the constituent material of the organic layer 19a include an optical adhesive member such as an ultraviolet curable resin.
- the protective layer 19b is provided on the organic layer 19a.
- the protective layer 19b and the upper substrate 701 are configured by the same member. For this reason, in the display device Y2, the thickness can be relatively reduced.
- the display device Y1 including the input device X1 has been described.
- the present invention is not limited to this, and the input devices X2 to X5 may be employed instead of the input device X1.
- the portable terminal Z1 including the input device X1 has been described.
- the present invention is not limited thereto, and input devices X2 to X5 may be employed instead of the input device X1.
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Abstract
Description
図8は、変形例1に係る入力装置X2の概略構成を示す平面図である。図9は、変形例1に係る入力装置X2の概略構成を示す平面図であって、基体2を透視した図である。図10は、図9中に示したIV-IV線断面図である。図11は、図9中に示したV-V線断面図である。図12は、図9中に示したVI-VI線断面図である。なお、図8~図12において、図1~図4と同様の機能を有する構成については、同じ参照符号を付記し、その詳細な説明は省略する。また、図8では、説明の便宜上、絶縁体5、保護シート13、および接着層14の図示は省略する。
図13は、変形例2に係る入力装置X3の概略構成を示す平面図である。図14は、変形例2に係る入力装置X3の概略構成を示す平面図であって、基体2を透視した図である。図15は、図14中に示したVII-VII線断面図である。なお、図13~図15において、図1、図2および図5と同様の機能を有する構成については、同じ参照符号を付記し、その詳細な説明は省略する。また、図13では、説明の便宜上、絶縁体5、保護シート13、および接着層14の図示は省略する。
図16は、変形例3に係る入力装置X4の概略構成を示す平面図である。図17は、変形例3に係る入力装置X4の概略構成を示す平面図であって、基体2を透視した図である。図18は、図17中に示したVIII-VIII線断面図である。なお、図16~図18において、図1、図2および図5と同様の機能を有する構成については、同じ参照符号を付記し、その詳細な説明は省略する。また、図16では、説明の便宜上、絶縁体5、保護シート13、および接着層14の図示は省略する。
図19は、変形例4に係る表示装置Y2を示す断面図である。図20は、図19中に示した1点鎖線で囲んだ領域H1を拡大した図である。なお、図19および図20において、図5および図6と同様の機能を有する構成については、同じ参照符号を付記し、その詳細な説明は省略する。
なお、本明細書は、上記の実施形態および変形例1~4について個別具体的に説明したが、これに限らず、上記の実施形態および変形例1~4に個別に記載された事項を適宜組み合わせた例についても記載されているものである。すなわち、本発明に係る入力装置は、入力装置X1~X5に限定されるものではなく、上記の実施形態および変形例1~4に個別に記載された事項を適宜組み合わせた入力装置も含む。
Y1,Y2 表示装置
Z1 携帯端末
A1 角部
C1 交差部
2 基体
2b 基体の第2主面
2c 基体2の端面
3 第1検出電極パターン
3a 第1検出電極
3b 第1電極間配線
4 第2検出電極パターン
4a 第2検出電極
4b 第2電極間配線
5 絶縁体
5aa 露出面
8 検出用配線
10 第2絶縁層
11,15,16,17,18 無機層
12,19 保護部材
12a,19a 有機層
12b,19b(701) 保護層
100,600 第1筐体
200,700 表示パネル
701(19b) 上側基板
Claims (9)
- 基体と、
前記基体の主面上に設けられた検出電極パターンと、
平面視して前記検出電極パターンを覆うように前記基体の主面上に設けられた無機層と、
前記無機層上に設けられた保護部材と、を備え、
前記保護部材は、前記無機層と接しかつ接着性を有する有機層、および前記有機層上に設けられた保護層を有する、入力装置。 - 前記検出電極パターンは、第1検出電極パターンおよび第2検出電極パターンを有しており、
前記第1検出電極パターンと前記第2検出電極パターンとが交差する交差部に設けられており、前記第1検出電極パターンと前記第2検出電極パターンとを電気的に絶縁する絶縁体をさらに備え、
前記絶縁体は、有機材料からなり、
前記無機層は、前記絶縁体上に位置している、請求項1に記載の入力装置。 - 前記第2検出電極パターンの一部は、前記絶縁体上に位置しており、
前記絶縁体は、前記第2検出電極パターンの一部から露出した露出面を有しており、
前記無機層は、前記露出面と接している、請求項2に記載の入力装置。 - 前記基体の主面と前記絶縁体とがなす角部に位置する前記無機層の厚みは、前記検出電極パターン上に位置する前記無機層の厚みよりも大きい、請求項2または3に記載の入力装置。
- 前記基体の主面上に設けられており、かつ前記検出電極パターンと電気的に接続された検出用配線と、
前記基体の主面上に設けられており、かつ前記検出用配線上に位置する絶縁層と、をさらに備え、
前記無機層は、前記絶縁層上に延在しており、
前記絶縁層は、前記基体と前記無機層との間に挟み込まれている、請求項1~4のいずれか一項に記載の入力装置。 - 前記無機層は、前記基体の端面から所定距離以上離れて設けられている、請求項5に記載の入力装置。
- 前記有機層の厚みは、前記無機層の厚みよりも大きい、請求項1~6のいずれか一項に記載の入力装置。
- 請求項1~7のいずれか一項に記載の入力装置と、
前記入力装置に対向して配置された表示パネルと、
前記表示パネルを収容する筐体と、を備えた表示装置。 - 請求項8に記載の表示装置を備えた、電子機器。
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US14/374,368 US20140362309A1 (en) | 2012-01-25 | 2012-12-28 | Input device, display device, and electronic equipment |
JP2013555172A JP5869591B2 (ja) | 2012-01-25 | 2012-12-28 | 入力装置、表示装置、および電子機器 |
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JP2015052916A (ja) * | 2013-09-06 | 2015-03-19 | デクセリアルズ株式会社 | 静電容量型タッチパネル |
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WO2013108564A1 (ja) * | 2012-01-18 | 2013-07-25 | 京セラ株式会社 | 入力装置、表示装置、および電子機器 |
US9084383B2 (en) | 2013-01-04 | 2015-07-14 | Dell Products L.P. | Variable stiffness chassis for ultrathin devices |
KR102392671B1 (ko) * | 2015-05-11 | 2022-04-29 | 삼성디스플레이 주식회사 | 가요성 표시 장치 |
US10430000B2 (en) * | 2016-08-05 | 2019-10-01 | Innolux Corporation | Touch display device |
CN108108045A (zh) * | 2016-11-24 | 2018-06-01 | 合肥鑫晟光电科技有限公司 | 触控基板、触控屏及其制造方法、显示设备 |
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