WO2015156467A1 - 나노구조의 패턴을 구비한 광투과성 도전체 및 그 제조방법 - Google Patents
나노구조의 패턴을 구비한 광투과성 도전체 및 그 제조방법 Download PDFInfo
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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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
- H05K1/092—Dispersed materials, e.g. conductive pastes or inks
- H05K1/097—Inks comprising nanoparticles and specially adapted for being sintered at low temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0274—Optical details, e.g. printed circuits comprising integral optical means
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
- H10K30/81—Electrodes
- H10K30/82—Transparent electrodes, e.g. indium tin oxide [ITO] electrodes
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- 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
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0242—Shape of an individual particle
- H05K2201/026—Nanotubes or nanowires
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0302—Properties and characteristics in general
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/05—Patterning and lithography; Masks; Details of resist
- H05K2203/0502—Patterning and lithography
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a transparent conductor and a method of manufacturing the same, and more particularly, to a transparent conductor having a nanostructured pattern and a method of manufacturing the same.
- the transparent conductor refers to a thin conductive film that transmits light in the visible light region and has electrical conductivity at the same time.
- Light-transmitting conductors are widely used in a variety of electronic devices.
- light-transmitting conductors are widely used as transparent electrodes in flat panel displays such as liquid crystal displays of flat-panel TVs and desktop PCs, touch panels of tablet PCs and smartphones, and electroluminescent devices.
- Such a transparent conductor generally has characteristics that are not easily compatible with each other, such as optical transparency and conductivity. That is, in general, the light-transmitting conductor is not easy to increase both light transmittance and conductivity because the high light transmittance tends to be inferior in conductivity and the high conductivity is inferior in light transmittance.
- metal oxides such as indium tin oxide (ITO) have been widely used as light-transmitting conductors in order to have high light transmittance and conductivity.
- ITO indium tin oxide
- these metal oxides have a problem of inferior light transmittance as they improve conductivity.
- Light-transmitting conductors of metal mesh structures are also widely used.
- the light-transmitting conductor of the metal mesh structure is difficult to form a fine line width, there is a problem of visibility according to the viewing distance, the process is complicated, there is a problem that the moire phenomenon due to the pattern structure appears.
- the formation of a transparent conductor using nanostructures such as carbon nanotubes and silver nanowires has been actively studied.
- the light transmissive conductor using the nanostructure has a problem in that the conductivity is inferior because the individual nanostructure units are connected in contact with each other.
- An object of the present invention is to provide a transparent conductor having a nanostructured pattern and a method of manufacturing the same.
- the invention according to claim 1 is a light-transmitting conductor, comprising: a substrate; And a conductive layer on the substrate, the conductive layer comprising a conductive material, the conductive layer having a pattern corresponding to a network formed by arranging the nanostructures to cross each other.
- the conductive layer according to claim 1 has a substantially constant thickness.
- the conductive layer according to claim 1 is a single body formed as one unit.
- the conductive material according to claim 1 contains a metal.
- the conductive material according to claim 1 is a nonmetal having conductivity.
- the nanostructure according to claim 1 is one selected from the group consisting of nanotubes, nanowires, nano-fibers, and mixtures thereof.
- the pattern according to claim 1 comprises: a plurality of body parts corresponding to the nanostructure of the network; A plurality of intersections formed by crossing body parts; And an opening between the body parts.
- the main body parts and the intersection parts according to claim 1 form at least one closed system that is connected to include an opening therein.
- the main body parts and the intersection parts according to claim 7 form at least one open system connected to each other so that the inside and the outside are not distinguished.
- the edge part of a main body part protrudes in the opening part of Claim 7. It is characterized by the above-mentioned.
- the thickness t of the main body portion according to claim 11 falls within a range of 0 ⁇ t ⁇ 500 nm.
- intersection portion according to claim 7 has a thickness substantially the same as that of the main body.
- the pattern according to claim 1 is amorphous.
- the terminal layer electrically connected with a conductive layer is provided on the board
- the terminal layer according to claim 15 is formed of the same material as the conductive layer.
- the terminal layer according to claim 15 has a thickness substantially the same as that of the conductive layer.
- the invention as set forth in claim 18 is a method of manufacturing a transparent conductor, comprising: (1) coating a conductive material on a substrate; (2) coating the photosensitive material on the conductive material; (3) arranging the nanostructures to form a network arranged on the photosensitive material such that the nanostructures cross each other; (4) forming a shape corresponding to the network of nanostructures in the photosensitive material using the network of nanostructures; And (5) forming a conductive layer by forming a pattern on the conductive material according to the shape of the photosensitive material.
- the conductive material of step (1) according to claim 18 comprises a metal.
- the photosensitive material of step (2) according to claim 18 is a photosensitive polymer.
- the nanostructure of step (3) according to claim 18 is one selected from the group consisting of nanotubes, nanowires, nanofibers, and mixtures thereof.
- step (4) according to claim 18 is characterized by forming a shape corresponding to the network of nanostructures on the photosensitive material by exposing the photosensitive material through the network of nanostructures.
- the pattern of step (5) described in claim 18 is characterized by being amorphous.
- the method further comprises forming a terminal layer electrically connected to the conductive layer on the substrate corresponding to the outside of the edge of the conductive layer according to claim 18.
- the step of forming the terminal layer as set forth in claim 24 further comprises: coating a conductive material on the substrate; Coating the photosensitive material on the conductive material; Forming a shape corresponding to the shape of the mask on the photosensitive material by arranging and exposing a mask having a shape corresponding to the terminal layer on the photosensitive material; And forming a pattern of the terminal layer on the conductive material according to the shape of the photosensitive material.
- the invention as set forth in claim 26 is a method of manufacturing a transparent conductor, comprising: (1) coating a conductive material on a substrate; (2) patterning the terminal layer on the conductive material; (3) coating the photosensitive material on the conductive material to include a portion where the terminal layer is patterned; (4) arranging the nanostructures to form a network arranged such that the nanostructures intersect on the photosensitive material selected so that the portion corresponding to the terminal layer is excluded; (5) forming a shape corresponding to the network of nanostructures in the photosensitive material using the network of nanostructures; And (6) forming a conductive layer connected to the terminal layer by forming a pattern on the conductive material except for the terminal layer according to the shape of the photosensitive material.
- the conductive material of step (1) according to claim 26 includes a region in which a conductive layer is formed and a region in which a terminal layer is formed.
- the terminal layer of step (2) according to claim 26 is patterned by photolithography.
- the present invention can provide a transparent conductor having a nanostructured pattern and a method of manufacturing the same.
- FIG. 1 is a perspective view schematically showing a transparent conductor as Example 1.
- FIG. 2 is a plan view illustrating a pattern of a conductive layer on a substrate in the transparent conductor of FIG. 1.
- FIG. 3 is a partial plan view illustrating a part of the conductive layer pattern of FIG. 2.
- FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 3.
- FIG. 5 is a plan view showing a pattern of a conductive layer on a substrate in a transparent conductor as Example 2.
- FIG. 6 is a plan view showing a pattern of a conductive layer on a substrate in a transparent conductor as Example 3.
- FIG. 6 is a plan view showing a pattern of a conductive layer on a substrate in a transparent conductor as Example 3.
- FIG. 7 is a perspective view illustrating a terminal layer provided in a transparent conductor as Example 4.
- FIG. 8 to 15 are diagrams showing a manufacturing method of a transparent conductor as Example 5.
- FIG. 8 to 15 are diagrams showing a manufacturing method of a transparent conductor as Example 5.
- FIG. 16 is a view showing a method for manufacturing a transparent conductor as Example 6.
- FIG. 17 is a view showing a manufacturing method of a transparent conductor as Example 7.
- the light transmissive conductor 100 includes a substrate 110 and a conductive layer 120.
- the transparent conductor 100 may transmit light and have electrical conductivity.
- the light transmittance is preferably 90% or more.
- the substrate 110 refers to a conductive layer 120 formed thereon by coating or laminating.
- the substrate 110 may be rigid or flexible.
- the substrate 110 may be light transmitting or light non-transmitting.
- the substrate 110 may be formed of a rigid material such as glass, polycarbonate, or acrylic, or a flexible material such as polyester, polyolefin, polyvinyl, polyimide, silicon, or the like.
- the substrate 110 may be formed of a cycloolefin polymer (COP), a cycloolefin copolymer (COC), and triacetyle cellulose (TAC).
- COP cycloolefin polymer
- COC cycloolefin copolymer
- TAC triacetyle cellulose
- the material forming the substrate 110 is not limited thereto.
- the conductive layer 120 refers to an electrically conductive layer formed on the substrate 110.
- the conductive layer 120 may have an electrical conductivity of 150 ⁇ s / square or less.
- the conductive layer 120 may have an electrical conductivity of 50 ⁇ s / square or less.
- the electrical conductivity of the conductive layer 120 may be appropriately selected in consideration of the properties of the conductive material constituting the conductive layer 120.
- the conductive layer 120 may have a substantially constant thickness. As a result, the conductive layer 120 does not have a portion protruding to the outside, so that it is difficult to form static electricity, thereby preventing damage caused by static electricity, and it is not necessary to add a separate coating layer for preventing static electricity.
- the thickness of the conductive layer 120 is preferably 100nm to 300nm.
- the conductive layer 120 preferably has a substantially constant thickness, but is not limited thereto.
- the conductive layer 120 may have any thickness.
- the conductive layer 120 may also be a unitary unitary body, such as a copper monolayer.
- the conductive layer 120 is not limited to a single body formed as one unit, for example, formed of a plurality of layers such as three layers of molybdenum-aluminum-molybdenum (Mo-Al-Mo). May be
- the conductive layer 120 includes a conductive material.
- the conductive material included in the conductive layer 120 may include a metal such as copper, aluminum, silver, molybdenum, or nickel.
- the conductive material included in the conductive layer 120 is not limited to a metal and may be, for example, a conductive nonmetal or a metal compound such as silver halide.
- the conductive material may be formed on the substrate 110 in various ways. For example, the conductive material may be formed on the substrate 110 by deposition by sputtering.
- the conductive layer 120 includes a pattern corresponding to the network formed by arranging the nanostructures to cross each other.
- the nanostructures may be nanotubes, nanowires, nanofibers, or mixtures thereof. If the nanostructure is included in any material that is included therein. For example, carbon nanotubes, silver nanowires, carbon nanofibers, or the like may be used as the nanostructure.
- the conductive layer 120 since the conductive layer 120 includes a pattern corresponding to a network formed by crossing nanostructures, the width of a portion corresponding to each nanostructure forming the conductive layer 120 can be formed to be highly narrow. It is possible to secure a high light transmittance.
- the conductive layer 120 is formed of a conductive material having a high conductivity and at the same time formed in a pattern corresponding to the nanostructure network that can secure a high light transmittance, it is possible to significantly improve the light transmittance and conductivity at the same time.
- the pattern corresponding to the network formed by arranging the nanostructures to intersect refers to the pattern formed to correspond to such a network, not the network itself formed by arranging the nanostructures to intersect.
- This pattern has a plurality of body portions 121, a plurality of intersections 122, and openings 123, as illustrated in FIG. 2.
- the body portions 121 refer to portions corresponding to the nanostructures of the nanostructure network
- the intersection portions 122 refer to portions in which the body portions 121 intersect
- the opening portion 123 is the body portions 121.
- the body portion 121 and the intersection portion 122 are elements that make the conductive layer 120 conductive
- the opening 123 is an element that makes the conductive layer 120 light transmissive.
- the body parts 121a, 121b, 121c and 121d and the intersection parts 122a, 122b, 122c and 122d may form a closed system 125 that is connected to include the opening 123a therein.
- the main body parts 121 are connected to each other redundantly, thereby improving the reliability of the electrical connection between these parts, thereby effectively preventing the electrical connection between the parts in the manufacturing process or use of the transparent conductor 100.
- the other body parts 121e, 121f, and 121g and the other intersections 122e, 122f, and 122g may form an open system 126 that is connected so that the inside and the outside are not distinguished from each other.
- the opening 123 may be a closed system opening 123a formed in the closed system 125 and an open system opening 123b formed by the open system 126.
- the closed system 125 and the open system 126 may be located separately from each other or may be adjacent to each other.
- the open system 126 may be located inside the closed system 125, or conversely, the closed system 125 may be located within the open system 126.
- the body portion 121 may form an end portion 124. The end portion 124 of the body portion 121 may protrude into the closed system opening 123a or the open system opening 123b.
- the width w of the body part 121 may be formed in various ways depending on what forms a network of nanostructures.
- the width w of the body portion 121 may be in a range of 100 nm ⁇ w ⁇ 2500 nm.
- the width w of the body portion 121 may be variously formed according to the thickness t of the body portion 121. For example, when the thickness of the body portion 121 is t, the width w of the body portion 121 may be in a range of 100 (nm) ⁇ w ⁇ 5t.
- the width w of the main body 121 may be in a range of 100 nm ⁇ w ⁇ 500 nm, and the thickness t of the main body 121 is
- the width w of the body portion 121 when 100 nm ⁇ t ⁇ 300 nm may be in the range of 100 nm ⁇ w ⁇ 1500 nm, and when the thickness t of the body portion 121 is 300 nm ⁇ t ⁇ 500 nm, The width w may fall in the range of 100 nm ⁇ w ⁇ 2500 nm.
- the intersection portion 122 may have a thickness substantially the same as the body portion 121.
- the pattern of the conductive layer 120 may be formed in a single body, and the intersection portion 122 may have substantially the same conductivity as the body portion 121, so that the intersection portion 122 may not be in contact with the body portions 121. In this case, it is possible to prevent the touch sensitivity from being lowered due to the contact resistance.
- the pattern of the conductive layer 120 may be amorphous. By forming the amorphous pattern as described above, it is possible to prevent the moire phenomenon in which stripes are visible due to the repetition of the standardized pattern.
- the pattern of the conductive layer is not limited to amorphous and may be anything as long as it includes a pattern corresponding to a network formed by crossing nanostructures.
- a dark color layer 130 having a dark color such as black may be formed on an upper surface of the conductive layer 120.
- the dark layer 130 may be easily formed by oxidizing an upper side thereof.
- the dark layer 130 may be formed by adding a separate layer on the upper side of the conductive layer 120.
- the conductive layer 220 formed on the substrate 210 of the transparent conductor 200 corresponds to the network formed by arranging the nanostructures to cross each other.
- a pattern including a main body portion 221 and an intersecting portion 222 is provided, but the main body portion 221 extends continuously from one edge of the conductive layer 220 to the other edge so that the main body portion within the pattern is provided. It is characterized in that the end of 221 does not exist.
- the reliability of the electrical connection of the conductive layer by the body portion 221 and the crossing portion 222 can be more assured, and the disconnection portion such as the end portion of the body portion 221 does not exist, and thus occurs at the disconnected portion. It is possible to more reliably prevent the phenomenon of static electricity.
- the conductive layer 220 pattern of this embodiment can be formed very easily by using nanofibers having a very high aspect ratio as a nanostructure.
- the conductive layer 320 formed on the substrate 310 of the light transmissive conductor 300 corresponds to the network formed by arranging the nanostructures to cross each other.
- the main body 321, the intersection 322, and the end 324 of the main body 321 are provided, but the main body 321 is continuously connected from one edge of the conductive layer 320 to the other edge. Since it is not extended, the body parts 321a, 321b, and 321c and the intersections 322a and 322b may form an open system 326 that is connected so that the inside and the outside are not distinguished, but the body parts 321 And the intersections 322 may not form a closed system that is connected to include an opening 323 therein.
- the conductive layer 320 pattern of the present embodiment can be formed very easily by using nanotubes or nanowires having a smaller aspect ratio than nanofibers as nanostructures.
- the conductive layer 420 is electrically connected to the substrate 410 corresponding to the outside of the edge of the conductive layer 420 of the transparent conductor 400. Characterized in that the terminal layer 430 is provided.
- the transparent conductor 400 may be connected to an external circuit (not shown) through the terminal layer 430, thereby serving as a component of a system such as a touch screen panel.
- the terminal layer 430 may be formed of the same material as the conductive layer 420, thereby enabling an electrical action such as a user's touch on the conductive layer 420 to be smoothly transmitted to the terminal layer 430. have.
- the conductive layer 420 is composed of a plurality of sensing units 427 spaced at predetermined intervals to detect an external touch and transmit an electrical signal.
- the terminal layer 430 includes a plurality of terminal parts 431 and connection parts 432 connected to the sensing parts 427 of the conductive layer 420. The electrical signal sensed by the detector 427 is transmitted to an external circuit through the connection 432 and the terminal 431 of the terminal layer 430.
- the terminal layer 430 may be formed to have substantially the same thickness as the conductive layer 420, thereby forming the terminal layer 430 together with the conductive layer 420, thereby simplifying the process.
- FIGS. 8 to 15 a method of manufacturing a transparent conductor is shown, as exemplarily shown in FIGS. 8 to 15.
- the conductive material 520 is coated on the substrate 510 (FIG. 8).
- the conductive material 520 may be a conductive metal such as gold, silver, copper, or a nonmetal having conductivity. Coating the conductive material 520 on the substrate 520 may be performed by various methods such as spin coating and plating.
- a photosensitive material 530 is coated on the conductive material 520 (FIG. 9).
- various materials having photosensitivity may be used, including a photosensitive polymer. Coating the photosensitive material 530 on the conductive material 520 may be variously performed by printing the photosensitive material paste on the conductive material 520 using the coating apparatus 531.
- the nanostructures are arranged to form a network 540 arranged on the top thereof so that the nanostructures cross (FIG. 10).
- the nanostructure nanotubes, nanowires, nanofibers, or mixtures thereof may be used.
- the nanostructure network 540 is used to form a shape corresponding to the nanostructure network 540 in the photosensitive material 530 (FIG. 11).
- the photosensitive material 530 may be exposed to the light source 550 through the nanostructure network 540 to form a shape corresponding to the nanostructure network 540 in the photosensitive material 530.
- the developer is sprayed into a device such as the nozzle 560 to develop the photosensitive material 530 to form a shape corresponding to the nanostructure network 540 (FIG. 12).
- the conductive material 520 is sprayed onto a device such as a nozzle 570 on the photosensitive material 530 developed to have a shape corresponding to that of the nanostructure network 540 to form a pattern corresponding to the nanostructure network 540. It is etched so that it may have (FIG. 13). In this case, the pattern may be an amorphous pattern corresponding to the nanostructure network 540.
- the conductive layer 550 is formed by peeling the photosensitive material 530 remaining on the upper surface of the conductive material 520 having a pattern corresponding to the nanostructure network 540 using a device such as a nozzle 580. (FIG. 14). Through this process, the transparent conductor 500 is completed.
- the method may further include forming a terminal layer (not shown) electrically connected to the conductive layer 550 on the substrate 510 corresponding to the outside of the edge of the conductive layer 550.
- the forming of the terminal layer may include coating a conductive material on the substrate 510; Coating the photosensitive material on the conductive material; Forming a shape corresponding to the shape of the mask on the photosensitive material by arranging and exposing a mask having a shape corresponding to the terminal layer on the photosensitive material; And forming a pattern of the terminal layer on the conductive material according to the shape of the photosensitive material.
- the method of manufacturing the light transmissive conductor 600 according to the present embodiment is to form the terminal layer 630 as well as the conductive layer 620 on one conductive material coating.
- a conductive material is coated on the substrate 610.
- the conductive material is formed to include both the region where the conductive layer 620 is formed and the region where the terminal layer 630 is formed.
- the terminal layer 630 is patterned on the conductive material before coating the photosensitive material.
- the terminal layer 630 is formed at a portion other than a portion at which the conductive layer 620 on the conductive material is to be formed.
- the terminal layer 630 may be formed by photolithography, but is not limited thereto.
- the terminal layer 630 is formed to include the terminal portion 631, and further preferably, the terminal layer 630 includes the connection portion 632 so that electrical flow with the conductive layer 620 can be smoothly performed.
- a photosensitive material is coated on the conductive material to include the patterned portion of the terminal layer 630.
- the parts corresponding to the terminal layer 630 are not continuously extended to the other edge in the selected supervision so that the main body parts 321a, 321b, and 321c and the intersections 322a and 322b are distinguished from the inside and the outside.
- the open system 326 may be formed so as not to be connected, but the main body parts 321 and the crossing parts 322 may not form a closed system connected to include the opening 323 therein. It is done.
- the conductive layer 320 pattern of the present embodiment can be formed very easily by using nanotubes or nanowires having a smaller aspect ratio than nanofibers as nanostructures.
- the conductive layer 420 is electrically connected to the substrate 410 corresponding to the outside of the edge of the conductive layer 420 of the transparent conductor 400. Characterized in that the terminal layer 430 is provided.
- the transparent conductor 400 may be connected to an external circuit (not shown) through the terminal layer 430, thereby serving as a component of a system such as a touch screen panel.
- the terminal layer 430 may be formed of the same material as the conductive layer 420, thereby enabling an electrical action such as a user's touch on the conductive layer 420 to be smoothly transmitted to the terminal layer 430. have.
- the conductive layer 420 is composed of a plurality of sensing units 427 spaced at predetermined intervals to detect an external touch and transmit an electrical signal.
- the terminal layer 430 includes a plurality of terminal parts 431 and connection parts 432 connected to the sensing parts 427 of the conductive layer 420. The electrical signal sensed by the detector 427 is transmitted to an external circuit through the connection 432 and the terminal 431 of the terminal layer 430.
- the terminal layer 430 may be formed to have substantially the same thickness as the conductive layer 420, thereby forming the terminal layer 430 together with the conductive layer 420, thereby simplifying the process.
- FIGS. 8 to 15 a method of manufacturing a transparent conductor is shown, as exemplarily shown in FIGS. 8 to 15.
- the conductive material 520 is coated on the substrate 510 (FIG. 8).
- the conductive material 520 may be a conductive metal such as gold, silver, copper, or a nonmetal having conductivity. Coating the conductive material 520 on the substrate 520 may be performed by various methods such as spin coating and plating.
- a photosensitive material 530 is coated on the conductive material 520 (FIG. 9).
- various materials having photosensitivity may be used, including a photosensitive polymer. Coating the photosensitive material 530 on the conductive material 520 may be variously performed by printing the photosensitive material paste on the conductive material 520 using the coating apparatus 531.
- the nanostructures are arranged to form a network 540 arranged on the top thereof so that the nanostructures cross (FIG. 10).
- the nanostructure nanotubes, nanowires, nanofibers, or mixtures thereof may be used.
- the nanostructure network 540 is used to form a shape corresponding to the nanostructure network 540 in the photosensitive material 530 (FIG. 11).
- the photosensitive material 530 may be exposed to the light source 550 through the nanostructure network 540 to form a shape corresponding to the nanostructure network 540 in the photosensitive material 530.
- the developer is sprayed into a device such as the nozzle 560 to develop the photosensitive material 530 to form a shape corresponding to the nanostructure network 540 (FIG. 12).
- the conductive material 520 is sprayed onto a device such as a nozzle 570 on the photosensitive material 530 developed to have a shape corresponding to that of the nanostructure network 540 to form a pattern corresponding to the nanostructure network 540. It is etched so that it may have (FIG. 13). In this case, the pattern may be an amorphous pattern corresponding to the nanostructure network 540.
- the conductive layer 550 is formed by peeling the photosensitive material 530 remaining on the upper surface of the conductive material 520 having a pattern corresponding to the nanostructure network 540 using a device such as a nozzle 580. (FIG. 14). Through this process, the transparent conductor 500 is completed.
- the method may further include forming a terminal layer (not shown) electrically connected to the conductive layer 550 on the substrate 510 corresponding to the outside of the edge of the conductive layer 550.
- the forming of the terminal layer may include coating a conductive material on the substrate 510; Coating the photosensitive material on the conductive material; Forming a shape corresponding to the shape of the mask on the photosensitive material by arranging and exposing a mask having a shape corresponding to the terminal layer on the photosensitive material; And forming a pattern of the terminal layer on the conductive material according to the shape of the photosensitive material.
- the nanostructures are arranged to form a network in which the nanostructures intersect on the photosensitive material. For this purpose, the portion corresponding to the terminal layer 630 is blocked and the portion corresponding to the conductive layer 620 is open.
- the nanostructure is coated onto the photosensitive material using a device such as a shadow mask, and then the photosensitive material is formed into a shape corresponding to the nanostructure network by exposure and development using the nanostructure network.
- the conductive layer 620 connected to the terminal layer 630 is formed by forming a pattern on the conductive material except for the terminal layer 630 according to the shape of the formed photosensitive material.
- the conductive layer 620 and the terminal layer 630 are formed together on one conductive material in the manufacture of the transparent conductor 600, and the sensing units 627 and the terminal layer ( Forming the terminal portions 631 of 630 together can simplify the process and save material.
- the display since the area of the portion corresponding to the substrate on which the terminal layer 630 is formed can be narrowed, the display can be made compact.
- FIG. 17 another method for manufacturing a transparent conductor is shown, as exemplarily shown in FIG. 17.
- the light-transmissive manufacturing method of this embodiment is characterized by manufacturing a light-transmissive conductor in a continuous process using the first roller 691 and the second roller 692.
- the substrate 710 coated with the conductive material 720 wound around the first roller 791 is unwound by the second roller 792 and is electrically conductive by the coating apparatus 731 installed adjacent to the first roller 791.
- the photosensitive material 730 is continuously coated on the material 720.
- a network 740 is then formed in which the nanostructures intersect on the photosensitive material 730 by means of an injector 741 installed after the coating device 731 of the photosensitive material 730 in the process flow.
- exposure and development of the photosensitive material 730 are sequentially performed by the exposure apparatus 750, the developing apparatus 760, the etching apparatus 770, and the peeling apparatus 780 sequentially disposed in the process flow, and the conductive substance 720.
- the pattern of the conductive layer 790 or the pattern of the conductive layer 790 and the terminal layer (not shown) is formed on the substrate 710 through etching and peeling of the remaining photosensitive material 730. In this way, the transparent conductor 700 is completed. Thereafter, the transparent conductor 700 is wound around the second roller 792.
- the present invention can be used in the field to which the transparent conductor and its manufacturing method are applied.
Abstract
Description
Claims (28)
- 기판; 및상기 기판 상의 도전층을 포함하고,상기 도전층은 도전성 물질을 포함하며,상기 도전층은 나노구조체가 교차하도록 배열되어 형성하는 네트워크에 상응하는 패턴을 구비하는 광투과성 도전체.
- 청구항 1에 있어서,상기 도전층은 실질적으로 일정한 두께를 갖는 광투과성 도전체.
- 청구항 1에 있어서,상기 도전층은 하나의 일체로 형성된 단일체인 광투과성 도전체.
- 청구항 1에 있어서,상기 도전성 물질은 금속을 포함하는 광투과성 도전체.
- 청구항 1에 있어서,상기 도전성 물질은 도전성을 갖는 비금속인 광투과성 도전체.
- 청구항 1에 있어서,상기 나노구조체는 나노튜브, 나노와이어, 나노화이버(nano-fiber) 및 그 혼합체로 이루어진 군 중에서 선택된 하나인 광투과성 도전체.
- 청구항 1에 있어서, 상기 패턴은,상기 네트워크의 나노구조체에 상응하는 복수의 본체부들;상기 본체부들이 교차하여 형성된 복수의 교차부들; 및상기 본체부들 사이의 개구부를 포함하는 광투과성 도전체.
- 청구항 7에 있어서,상기 본체부들과 상기 교차부들은 내부에 상기 개구부를 포함하도록 연결되어 있는 적어도 하나의 폐쇄계를 형성하는 광투과성 도전체.
- 청구항 7에 있어서,상기 본체부들과 상기 교차부들은 내부와 외부가 구별되지 않도록 연결되어 있는 적어도 하나의 개방계를 형성하는 광투과성 도전체.
- 청구항 7에 있어서,상기 개구부에는 상기 본체부의 단부가 돌출되어 있는 광투과성 도전체.
- 청구항 7에 있어서,상기 본체부의 두께가 t일 때에, 상기 본체부의 폭 w는 100(nm) ≤ w ≤ 5t의 범위에 속하는 광투과성 도전체.
- 청구항 11에 있어서,상기 본체부의 두께 t는 0 < t ≤ 500nm 의 범위에 속하는 광투과성 도전체.
- 청구항 7에 있어서,상기 교차부는 상기 본체부와 실질적으로 동일한 두께를 갖는 광투과성 도전체.
- 청구항 1에 있어서,상기 패턴은 무정형(amorphous)인 광투과성 도전체.
- 청구항 1에 있어서,상기 도전층의 가장자리 외부에 대응되는 상기 기판 상에는 상기 도전층과 전기적으로 연결되는 단자층이 구비되어 있는 광투과성 도전체.
- 청구항 15에 있어서,상기 단자층은 상기 도전층과 동일한 물질로 형성되어 있는 광투과성 도전체.
- 청구항 15에 있어서,상기 단자층은 상기 도전층과 실질적으로 동일한 두께를 갖는 광투과성 도전체.
- (1) 기판 상에 도전성 물질을 코팅하는 단계;(2) 상기 도전성 물질 상에 감광성 물질을 코팅하는 단계;(3) 상기 감광성 물질 상에 나노구조체가 교차하도록 배열된 네트워크를 형성하도록 상기 나노구조체를 배열하는 단계;(4) 상기 나노구조체의 네트워크를 이용하여 상기 감광성 물질에 상기 나노구조체의 네트워크에 상응하는 형상을 형성하는 단계; 및(5) 상기 감광성 물질의 형상에 따라 상기 도전성 물질에 패턴을 형성하여 도전층을 형성하는 단계를 포함하는 광투과성 도전체의 제조방법.
- 청구항 18에 있어서,상기 (1) 단계의 상기 도전성 물질은 금속을 포함하는 광투과성 도전체의 제조방법.
- 청구항 18에 있어서,상기 (2) 단계의 상기 감광성 물질은 감광성 폴리머인 광투과성 도전체의 제조방법.
- 청구항 18에 있어서,상기 (3) 단계의 상기 나노구조체는 나노튜브, 나노와이어, 나노화이버(nano-fiber) 및 그 혼합체로 이루어진 군 중에서 선택된 하나인 광투과성 도전체의 제조방법.
- 청구항 18에 있어서,상기 (4) 단계는 상기 나노구조체의 네트워크를 통해 상기 감광성 물질을 노광함으로써 상기 감광성 물질에 상기 나노구조체의 네트워크에 상응하는 형상을 형성하는 광투과성 도전체의 제조방법.
- 청구항 18에 있어서,상기 (5) 단계의 상기 패턴은 무정형(amorphous)인 광투과성 도전체의 제조방법.
- 청구항 18에 있어서,상기 도전층의 가장자리 외부에 대응되는 상기 기판 상에 상기 도전층과 전기적으로 연결되는 단자층을 형성하는 단계를 더 포함하는 광투과성 도전체의 제조방법.
- 청구항 24에 있어서, 상기 단자층을 형성하는 단계는,기판 상에 도전성 물질을 코팅하는 단계;상기 도전성 물질 상에 감광성 물질을 코팅하는 단계;상기 감광성 물질 상에 상기 단자층에 상응하는 형상을 갖는 마스크를 배열하여 노광함으로써 상기 감광성 물질에 상기 마스크의 형상에 상응하는 형상을 형성하는 단계; 및상기 감광성 물질의 형상에 따라 상기 도전성 물질에 상기 단자층의 패턴을 형성하는 단계를 포함하는 광투과성 도전체의 제조방법.
- (1) 기판 상에 도전성 물질을 코팅하는 단계;(2) 상기 도전성 물질 상에 단자층을 패터닝하는 단계;(3) 상기 단자층이 패터닝된 부분이 포함되도록 상기 도전성 물질 상에 감광성 물질을 코팅하는 단계;(4) 상기 단자층에 대응되는 부분이 제외되게 선택된 상기 감광성 물질 상에 나노구조체가 교차하도록 배열된 네트워크를 형성하도록 상기 나노구조체를 배열하는 단계;(5) 상기 나노구조체의 네트워크를 이용하여 상기 감광성 물질에 상기 나노구조체의 네트워크에 상응하는 형상을 형성하는 단계; 및(6) 상기 감광성 물질의 형상에 따라 상기 단자층을 제외한 상기 도전성 물질에 패턴을 형성하여 상기 단자층에 연결된 도전층을 형성하는 단계를 포함하는 광투과성 도전체의 제조방법.
- 청구항 26에 있어서,상기 (1) 단계의 상기 도전성 물질은 상기 도전층이 형성되는 영역과 상기 단자층이 형성되는 영역을 포함하는 광투과성 도전체의 제조방법.
- 청구항 26에 있어서,상기 (2) 단계의 상기 단자층은 포토리소그래피에 의해 패터닝되는 광투과성 도전체의 제조방법.
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US15/300,182 US10165680B2 (en) | 2014-04-09 | 2014-10-31 | Light-transmitting conductor having nanostructure pattern and method for manufacturing same |
CN201480077699.XA CN106133847B (zh) | 2014-04-09 | 2014-10-31 | 具有纳米结构的图案的透光性导电体及其制造方法 |
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- 2014-10-31 US US15/300,182 patent/US10165680B2/en active Active
- 2014-10-31 WO PCT/KR2014/010333 patent/WO2015156467A1/ko active Application Filing
- 2014-10-31 CN CN201480077699.XA patent/CN106133847B/zh active Active
- 2014-10-31 JP JP2016559307A patent/JP6486383B2/ja active Active
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KR20100017128A (ko) * | 2007-04-20 | 2010-02-16 | 캄브리오스 테크놀로지즈 코포레이션 | 복합 투명 도전체 및 그 제조 방법 |
JP2012174600A (ja) * | 2011-02-23 | 2012-09-10 | Fujifilm Corp | 導電シートの製造方法、導電シート及びタッチパネル |
KR20140040919A (ko) * | 2012-09-27 | 2014-04-04 | 한국과학기술원 | 은 나노와이어 네트워크―그래핀 적층형 투명전극 소재, 그 제조 방법 및 이를 포함하는 투명전극 |
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CN106711276A (zh) * | 2015-11-18 | 2017-05-24 | 陶氏环球技术有限责任公司 | 制造图案化导体的方法 |
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US20170150598A1 (en) | 2017-05-25 |
JP2017519326A (ja) | 2017-07-13 |
CN106133847A (zh) | 2016-11-16 |
KR20150117000A (ko) | 2015-10-19 |
KR101586902B1 (ko) | 2016-01-19 |
CN106133847B (zh) | 2018-04-20 |
JP6486383B2 (ja) | 2019-03-20 |
US10165680B2 (en) | 2018-12-25 |
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