WO2004016060A1 - 電磁波遮蔽用シート - Google Patents
電磁波遮蔽用シート Download PDFInfo
- Publication number
- WO2004016060A1 WO2004016060A1 PCT/JP2003/010022 JP0310022W WO2004016060A1 WO 2004016060 A1 WO2004016060 A1 WO 2004016060A1 JP 0310022 W JP0310022 W JP 0310022W WO 2004016060 A1 WO2004016060 A1 WO 2004016060A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- electromagnetic wave
- wave shielding
- shielding sheet
- mesh
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0094—Shielding materials being light-transmitting, e.g. transparent, translucent
- H05K9/0096—Shielding materials being light-transmitting, e.g. transparent, translucent for television displays, e.g. plasma display panel
-
- 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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/02—Layer formed of wires, e.g. mesh
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/06—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/05—5 or more layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/42—Polarizing, birefringent, filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/518—Oriented bi-axially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/71—Resistive to light or to UV
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/748—Releasability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2405/00—Adhesive articles, e.g. adhesive tapes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
- Y10T428/24322—Composite web or sheet
- Y10T428/24331—Composite web or sheet including nonapertured component
Definitions
- the present invention relates to a sheet for shielding electromagnetic waves (also referred to as “sino-reed”). More specifically, the present invention is arranged on a front surface of a display such as a CRT or a PDP to shield electromagnetic waves generated from the display, and And an electromagnetic wave shielding sheet using a metal layer (thin film) mesh.
- Electromagnetic noise disturbance (ElectrOmagnetEnticInt erferfenc; EMI) has been increasing with the advancement of functions and increasing use of electric and electronic equipment.
- Electromagnetic noise is roughly divided into conduction noise and radiation noise.
- conduction noise there is a method using a noise filter or the like.
- radiation noise electromagnetically insulates the space.
- methods such as using a metal case for the case, inserting a metal plate between circuit boards, and winding a cable with metal foil.
- a plasma display panel is a combination of a glass having a data electrode and a fluorescent layer and a glass having a transparent electrode, and when operated, generates a large amount of electromagnetic waves, near-infrared rays, and heat.
- a front panel is provided on the front of the plasma display panel to shield electromagnetic waves.
- the shielding performance of electromagnetic waves generated from the front of the display must have a function of 30 dB or more at 30 MHz to 1 GHz.
- ⁇ , near-infrared light with a wavelength of 800 to 1,100 nm generated from the front of the spray can cause malfunctions of other VTRs, remote control devices for air conditioners, and other devices, so they need to be shielded. is there.
- the metal mesh (line) for shielding electromagnetic waves is difficult to see, so that the display image on the display is clearly visible. It is necessary to have appropriate transparency (visible light transmittance, visible light transmittance).
- plasma display panels are characterized by large screens, for example, 37-inch, 42-inch, and even larger sizes.
- the number of lines of the electromagnetic wave shielding sheet usually extends to several thousands in the vertical and horizontal directions, and a plurality of openings surrounded by the lines are provided.
- the adhesive layer since the adhesive layer is exposed, the opening receives an attack of the etching solution during the etching, and the adhesive layer is colored or an alkaline stripping solution for stripping the resist film after the etching is formed.
- the adhesive layer is deteriorated.
- the front panel is shielded from electromagnetic waves and has appropriate transparency (transmittance of visible light). There is a need for an improved mesh structure.
- Japanese Unexamined Patent Publication (Kokai) No. 5-283898 discloses an electromagnetic wave shielding material having a mesh structure, which comprises a transparent anchor layer on a substrate / an electroless plating layer in a mesh pattern. Further, a method of forming a metal mesh of an electromagnetic wave shielding sheet by a photoresist method is disclosed in Japanese Patent Application Laid-Open No. H09-293939. Furthermore, an electromagnetic wave shielding structure in which a plastic film with a copper foil, in which a geometric figure is formed on a copper foil by a photolithography method, is laminated on a plastic plate, is disclosed in Japanese Patent Application Laid-Open No. H10-335885. ing.
- the electromagnetic wave shielding sheet also has a mesh structure.
- the layer is formed over the entire surface of the base material and the adhesive layer only at the mesh portion of the metal layer. Neither is it suggested to be formed on the entire surface.
- the electromagnetic wave shielding sheet usually has a drawback that it is difficult to take the ground from the grounding electrode portion because the base material side is the observation side.
- a method of forming a pattern is to provide a black substrate and a patterned metal layer on a patterned resist, wash away the resist, and then provide a transparent substrate.
- An electromagnetic wave shielding material having a / black layer / patterned metal layer / a protective layer is disclosed in Japanese Patent Application Laid-Open No. 11-1288.185.
- the present invention has been made to solve such a problem. Its purpose is to place it on the front of a display such as a CRT or PDP to shield both electromagnetic waves and near-infrared rays generated from the display, and to eliminate haze rise due to residual air bubbles in the adhesive layer.
- An object of the present invention is to provide an electromagnetic wave shielding sheet having excellent image visibility at a low cost without increasing the number of laminating steps.
- the present invention relates to an electromagnetic wave shielding sheet, comprising: a transparent base material; a transparent protection layer provided on one surface of the base material; and a line portion provided on the protection layer and forming an opening.
- An electromagnetic wave shielding sheet comprising a metal layer in the form of a mesh, wherein the protection layer is provided on both the line portion and the portion corresponding to the opening.
- the present invention is arranged in front of a display such as a PDP to shield electromagnetic waves generated from the display, and the line portion of the mesh is invisible, and has both characteristics of electromagnetic wave shielding and transparency. Filling and either side may be the observation side.
- a display such as a PDP
- Electromagnetic wave shielding that can A shielding sheet is provided.
- This endeavor is an electromagnetic wave shielding sheet characterized in that the line width of the line portion of the metal layer is 5 to 25: m and the pitch between the line portions is 150 to 500 ⁇ . is there.
- ADVANTAGE OF THE INVENTION According to this invention, the line part of a mesh is invisible, and the sheet for electromagnetic wave shielding which satisfies both characteristics of electromagnetic wave shielding property and transparency is provided.
- the present invention is an electromagnetic wave shielding sheet, wherein a blackening treatment layer is provided on one surface of a metal layer.
- the line part of a mesh is invisibility, and the sheet
- the present invention is an electromagnetic wave shielding sheet, characterized in that a pudding-proofing layer is provided on the surface of the metal layer opposite to the base material.
- the base material surface may be installed on the PDP side, the number of steps for drawing out the electrodes is reduced, the frame-shaped black printing is not required, the visibility of the image is not glare, and the electromagnetic wave shielding is excellent. Sheet is provided.
- the present invention is an electromagnetic wave shielding sheet, characterized in that a transparent resin is filled into openings of a mesh-shaped metal layer so that the metal layer and the transparent resin become flat.
- corrugation of an opening is provided.
- the transparent resin to be filled into the openings of the mesh-like metal layer is a color-correction light-absorbing agent that absorbs light in the wavelength range of 570 to 65 nm in visible light, and Z or near-infrared light.
- the present invention provides a color tone correcting light absorber layer for absorbing light in a wavelength range of 570-605 nm in visible light, and a Z or near red light, which is located outside either the substrate or the additional protective layer.
- An electromagnetic wave shielding sheet provided with a near-infrared absorber layer that absorbs light in a wavelength range of 800 to 110 nm.
- produce from a PDP are shielded, and the bad effect resulting from these is prevented.
- FIG. 1 is a plan view of the electromagnetic wave shielding sheet of the present invention.
- FIG. 2 is a perspective view schematically showing a part of the electromagnetic wave shielding sheet of the present invention.
- FIG. 3A is a sectional view taken along the line AA of FIG.
- FIG. 3B is a sectional view taken along the line BB of FIG.
- FIG. 4 is a cross-sectional view illustrating the configuration of the conductive material layer.
- FIG. 5A is a plan view for explaining processing in a winding roll shape.
- FIG. 5B is a cross-sectional view for explaining processing in a winding roll shape.
- FIG. 6 is a cross-sectional view of the electromagnetic wave shielding sheet of the present invention adhered to a display surface.
- FIG. 7 is a cross-sectional view showing an electromagnetic wave shielding sheet having an adherend.
- FIG. 8 is a diagram showing a method of manufacturing an electromagnetic wave shielding sheet. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a plan view of the electromagnetic wave shielding sheet of the present invention.
- FIG. 2 is a perspective view schematically showing a part of the electromagnetic wave shielding sheet of the present invention.
- the electromagnetic wave shielding sheet 1 of the present invention includes a transparent base material 11, a mesh portion 103 provided on the base material 11, and a mesh portion 10 It consists of a grounding frame 101 surrounding 3.
- the mesh portion 103 includes a line portion 107 having a plurality of openings (also referred to as cells) 105 as shown in FIG.
- the grounding frame 101 is grounded when installed on a display.
- the line portion 107 is bonded to one surface of the transparent base material 11 via an adhesive layer 13, and the line portion 107 is formed from the conductive material layer 109 having a laminated structure. I'm familiar.
- the conductive material layer 109 can be directly formed on the substrate 11 by electroless plating, vapor deposition, or the like. In this case, the adhesive layer 13 may be omitted.
- the line portion 107 is a grid-like mesh in which the openings 105 are closely arranged in a plane.
- the line portion 107 and the opening portion 105 constitute a mesh portion 103.
- the width of the line portion 107 is referred to as a line width W, and an interval between the lines is referred to as a pitch P.
- FIG. 3A and FIG. 3B are a sectional view taken along the line AA and a sectional view taken along the line BB of FIG.
- FIG. 4 is a cross-sectional view illustrating the configuration of the conductive material layer.
- FIG. 3A shows a cross section crossing the opening, and the opening 105 and the line 107 are alternately formed.
- FIG. 3B shows a cross section that passes through the line 107.
- a line 107 composed of a conductive material layer 109 is formed continuously.
- the conductive material layer 109 is formed of a metal layer 21 and, preferably, at least a blackened layer 23 provided on the observation surface of the metal layer 21. A or 23 B. More preferably, the protection layers 25 A and Z or 25 B are provided so as to cover the blackening layers 23 A and Z or 23 B. It should be set on the A side.
- the protection layer 25A that is also present in the openings 105 of the mesh portion is a transparent layer.
- the protection layer 25B provided only on the line portion 107 of the mesh portion may be either transparent or opaque.
- the protection layers 25 A and 25 B have the protection function of the metal layer 21 and the blackening treatments 23 A and 23 B, and the blackening treatment layers 23 A and 23 B are also prevented from falling off. To prevent. Also, surprisingly, the protective layers 25 A and 25 B protect the adhesive layer 13 after being laminated with the base material 11 via the adhesive layer 13. . As described above, if necessary, the blackening layer 23B and the protection layer 25B (additional protection layer 25B) may be provided on the other surface of the metal layer 21 as well. The blackening layers 23 A and 23 B and the anti-reflection layers 25 A and 25 B may be provided on both sides of the metal layer 21. In the most preferable mode, a blackening layer 23A and a protection layer 25A are provided on the observation side.
- the etching of the metal layer 21 is further advanced to the protection layer, and the protection layer 25A is left only in the line 107.
- the etching is stopped when all the layers of the metal layer 21 are removed by etching, and the protection layer 25A is also left in the openings 105 of the mesh on the base material 11 side. Keep, that is, all It has been found that by adopting a form in which a protective layer 25 A is provided on the surface, the protective layer 25 A protects the adhesive layer 13.
- the adhesive layer 13 is exposed in the conventional opening portion 105, it is colored by receiving the attack of the etching solution at the time of etching, and is deteriorated by an alkaline stripping solution that strips the resist film after etching. Deterioration deteriorates the adhesive strength, but the presence of the protective layer 25A of the present invention can prevent this phenomenon. In addition, contamination of the etching solution by iron or sodium and the metal (ion) ) Can be prevented from discoloring the light absorber.
- the electromagnetic wave shielding sheet 1 usually has the substrate 11 side as the observation side in many cases.
- the blackening layer 23 A surface is usually used. If necessary, both the blackening layers 23A and 23B are provided with the same protection layers 25A and 25B. Even if it is provided on the surface opposite to 1, the blackening treatment layer 23B is protected by the protection layer 25B, so that particles do not easily fall off, so that it is easy to set either side as the observation side. Assuming that the metal layer 21 is on the observation side, the grounding frame portion 101 (functionally an electrode portion) is exposed, so that it is easy to ground.
- the protective layer (additional protective layer) 25 B and the blackening layer 23 B are extremely thin layers and do not hinder grounding.
- the grounding frame portion 101 can use the blackening treatment at the time of forming the blackening treatment layer 23A or 23B formed by the blackening treatment, which is advantageous in terms of process shortening and cost. Become.
- the electromagnetic wave shielding sheet 1 of the present invention is mainly described for displays such as CRT and PDP, but it goes without saying that it can be used for electromagnetic waves other than displays.
- the PDP features a large screen, and the size (external dimensions) of the electromagnetic wave shielding sheet 1 is, for example, about 62 ⁇ 80 ⁇ 30 mm for the 37 type, and about 580 ⁇ 9 for the 42 type. There is also about 8 O mm, and there is also a large size.
- the number of lines of the electromagnetic wave shielding sheet depends on the size of the mesh, but is usually several thousand in the vertical and horizontal directions. The width of the line must be formed within a certain range with an accuracy of "xm". If the opening 105 is also colored undesirably, when a human observes a display image, the human feels a very strong sense of discomfort.
- the transparent waterproof layer 25 A is formed on the entire surface including the opening 105.
- the adhesive layer 13 or the base material 11 is not colored, has electromagnetic wave shielding properties and appropriate transparency, and thus has excellent image visibility.
- there is a difference in the refractive index between the barrier layer 25A and the adhesive layer 13 or a flattening layer 29 described later and the refractive index of the barrier layer 25A is relatively high, and the adhesive layer 13 Alternatively, the refractive index of a flattening layer 29 described later is low, and optical effects such as antireflection and improvement of contrast can be expected.
- At least one surface of the metal layer 21 is provided with a blackening treatment 23A and / or 23B.
- a protection layer 25A and / or 25B is provided on the surface of the conductive material portion 109 on the side of the base material 11 at any position of the line portion and the opening.
- the opening 105 is filled with a transparent resin to flatten the metal layer side as a flattening layer 29, and if necessary, emit near-infrared light of a specific wavelength or near-infrared light and visible light of a specific wavelength.
- Light absorbing agent layers 31A and 31B to be absorbed are provided.
- an electromagnetic wave shielding sheet When such an electromagnetic wave shielding sheet is placed on the front of the display, it shields electromagnetic waves and near-infrared rays generated from the display, there is no fogging or whitening due to bubbles in the adhesive layer, there is no unevenness of mesh density, black or The number of white dotted linear defects is extremely small, and it has appropriate transparency, so that an image displayed on a display can be viewed well.
- the electromagnetic wave shielding sheet 1 of the present invention is prepared by first preparing a conductive material layer 109 having a blackening treatment and a protective layer provided on the base material 11 side at least on the observation side. After laminating the conductive material layer 109 on one side of the transparent film-shaped base material 11 via an adhesive, a resist layer 109a is formed on the conductive material layer 109 surface in a mesh pattern. To be provided. After the conductive material layer 109 not covered with the resist layer 109 a is removed by etching except for the protection layer 25 A, the resist layer 109 a is removed. do it. In addition, existing equipment can be used, and many of these manufacturing processes can be performed continuously, resulting in high quality, high yield, and high production efficiency (Fig. 8).
- the conductive material layer 109 for shielding electromagnetic waves is made of, for example, gold, silver, copper, iron, It has a metal layer 21 such as nickel, chromium, or the like, which has sufficient conductivity to shield electromagnetic waves.
- the metal layer 21 is not limited to a simple substance, but may be an alloy or a multilayer.
- Copper or copper alloy foil is preferred from the viewpoint of easy electrodeposition.
- the copper foil a rolled copper foil or an electrolytic copper foil can be used, but the thickness uniformity, the blackening treatment and the adhesion to the no or chromate (treatment) layer, and the formation of a thin film of 10 ⁇ or less. From the viewpoint that the copper foil can be formed, copper foil is preferred.
- the thickness of the metal layer 21 is about 1 to 100 ⁇ m, preferably 5 to 20 // m. When the thickness is smaller than this, the mesh processing by the photolithography method becomes easy, but the electric resistance value of the metal increases and the electromagnetic wave shielding effect is impaired. Above this thickness, the desired high-definition mesh shape cannot be obtained.
- These metal layers 21 are usually made into a metal layer in advance and bonded to the base material 11 via an adhesive layer 13 to be laminated. Alternatively, it may be formed directly on the base material 11 by a method such as electroless plating (or electrolytic plating may be further performed on the electroless plating layer) or vapor deposition. In this case, the adhesive layer 13 can be omitted.
- the surface roughness of the metal layer 21 is preferably 0.5 to 10 ⁇ m in binary. Below this, the external light is specularly reflected even if the blackening process is performed, and the visibility of the image is degraded. Above this, when applying adhesives or resists, they may not spread all over the surface or generate bubbles.
- the surface roughness Rz is an average value of 10 points measured according to JIS-B0601.
- the metal layer 21 of the mesh-like conductive material 109 is black on the observation side. It is necessary to perform a conversion process to give a sense of contrast.
- the blackening treatment may be performed by roughening the surface of the metal layer 21 and Z or blackening the metal layer 21.
- Metal oxides and metal sulfides can be formed, and various methods can be applied. In the case of iron, it is usually exposed to steam at a temperature of about 450 to 470 ° C for 10 to 20 minutes to form an oxide film (blackening film) of about 1 to 2 ⁇ m.
- an oxidized film (blackened film) by chemical treatment such as concentrated nitric acid may be used.
- the copper foil is placed in an electrolytic solution comprising sulfuric acid, copper sulfate, cobalt sulfate, etc.
- Cathodic electrodeposition in which a cathodic particle is adhered by performing an electrolysis treatment, is preferred.
- the cationic particles roughening is achieved, and at the same time, black color is obtained.
- the thione particles copper particles and alloy particles of copper and other metals can be used, and preferably copper-coparte alloy particles.
- the roughening and the blackening are collectively referred to as a blackening process.
- the preferred black density of the blackening treatment is 0.6 or more.
- the black density was measured using the GREOR SPM100-11 (COLOR CO NTROL SYSTEM, product name, manufactured by Kimoto Co., Ltd.) with an observation viewing angle of 10 degrees, an observation light source of D50, and an illumination type of standard ANS IT. Set and measure the test piece after white calibration.
- the light reflectance of the blackening treatment is preferably 5% or less. Glow spring reflectance is J
- the cationic particles copper particles and alloy particles of copper and other metals can be applied, but copper-cobalt alloy particles are preferable.
- the use of copper-cobalt alloy particles significantly increases the degree of blackening and absorbs visible light well.
- the color tone was represented by a color system “L *, a *, b *, ⁇ *” based on JIS-Z8729.
- the absolute values of “a *” and “b *” are smaller, the conductive material portion 109 becomes invisible, the contrast of the image is enhanced, and as a result, the visibility of the image is excellent.
- “a * J” and “b *” can be reduced to nearly zero as compared with copper particles.
- the average particle size of the copper-cono-noreto alloy particles is preferably from 0.1 to 1 ⁇ m. Above this, when the particle diameter of the copper-coparte alloy particles is increased, the thickness of the metal layer 21 becomes thinner, and the copper foil is cut in the step of laminating with the base material 11 to deteriorate workability, and However, the appearance of dense particles is lacking in density and unevenness is noticeable. Below this point, the visibility of the image is degraded due to the lack of roughness.
- At least the blackening treatment layer 23A obtained by blackening the metal layer 21 is used.
- a protective layer 25A and / or 25B is provided on 23B.
- the barrier layers 25 A and 25 B may be nickel and Z or zinc and / or copper oxide, or chromate-treated layers. Can be applied. Nickel and / or zinc and / or copper oxide may be formed by a known plating method, and the thickness is about 0.01 to 1 ⁇ , preferably about 0.00.
- chromate treatment In the chromate treatment, a chromate treatment liquid is applied to the material to be treated.
- a roll coat, a curtain coat, a squeeze coat, an electrostatic atomization method, an immersion method, or the like can be applied. After the application, the coating may be dried without washing. If chromate treatment is to be applied to one side, it may be applied to one side by roll coating or the like, and if it is to be applied to both sides, it may be carried out by the dipping method.
- the chromate treatment solution a conventional C r 0 2 using an aqueous solution containing 3 g Z l.
- a chromate treatment solution in which a part of hexavalent chromium is reduced to trivalent chromium by adding a different oxycarboxylic acid compound to an aqueous solution of chromic anhydride can also be used.
- the color changes from pale yellow to yellowish brown depending on the amount of hexavalent chromium deposited, but trivalent chromium is colorless, and if trivalent and hexavalent chromium are controlled, transparency without practical problems can be obtained.
- carboxylic acid compound tartaric acid, malonic acid, citric acid, lactic acid, glycolic acid, glyceric acid, tropic acid, benzylic acid, hydroxyvaleric acid and the like are used alone or in combination. Since the reducibility differs depending on the compound, the amount of the additive is determined while grasping the reduction to trivalent chromium.
- Chromate treatment is particularly preferred in order to further enhance the effect of the blackening treatment.
- the blackening layers 23A and 23B may be provided at least on the observation side, and the protection layers 25A and 25B may be provided at least on the substrate 11 side.
- the visibility and properties of the image are improved. Further, it may be provided on the other surface, that is, on the display surface side, and stray light generated from the display can be suppressed, so that the visibility of the image is further improved.
- a transparent substrate 11 is laminated on the protection layer 25 A with an adhesive 13.
- substrate As the material of the substrate 11, various materials can be applied as long as they have usage conditions, transparency, insulation, heat resistance, mechanical strength, and the like that can withstand production.
- Polyester resin such as polyethylene terephthalate-isophthalate copolymer Terephthalic acid-cyclohexanedimethanol-ethylene glycol copolymer
- Polyester resin such as polyethylene terephthalate / polyethylene naphthalate coextruded film, nylon 6 Nylon 6 6
- Polyamide resins such as nylon 610
- polypropylenePolyolefin resins such as polymethyl pentene
- vinyl resins such as polyvinyl chloride
- poly acrylatesPoly methacrylatesAcrylics such as polymethyl methacrylates Polyimide, Polyamide, Polyimide, Polyimide, etc.
- Engineering resins such as polyethersulfone
- the substrate 11 may be a copolymer resin containing these resins as a main component, a mixture (including alloys), or a laminate composed of a plurality of layers.
- the substrate may be a stretched film or an unstretched film, but is preferably a film stretched uniaxially or biaxially for the purpose of improving strength.
- the thickness of the substrate is usually preferably 50 to 700 ⁇ ⁇ , to which about 12 to 100 / m can be applied, and most preferably 100 to 500 / m. If the thickness is less than this, warpage or sagging occurs due to insufficient mechanical strength, and if it is more than this, excessive performance is caused and waste of cost is caused.
- the substrate 11 is used as a film, sheet, or board formed of at least one layer of these resins, and these shapes are collectively referred to as a film in this specification.
- a polyester film such as polyethylene terephthalate or polyethylene naphthalate is preferably used because of its transparency, heat resistance, and low cost, and polyethylene terephthalate is most suitable. The higher the transparency, the better, but the visible light transmittance is preferably 80% or more.
- Base material 11 is applied to the coating surface prior to coating, by corona discharge treatment, plasma treatment, ozone treatment, flame treatment, primer (also called anchor coat, adhesion promoter, and easy adhesive) coating treatment, pre-heat treatment
- An easy-adhesion treatment such as a dust removal treatment, a vapor deposition treatment, an alkali treatment, or the like may be performed.
- the resin film may be filled with a filler, An additive such as an agent or an antistatic agent may be added.
- the lamination method (also referred to as lamination) is to apply an adhesive or a pressure-sensitive adhesive to one of the base material 11 or the conductive material layer 109 and dry it as necessary, without heating or heating. By applying pressure, the base material 11 and the conductive material layer 109 are joined via an adhesive 13. Thereafter, aging (curing) may be performed at a temperature of 30 to 80 ° C, if necessary.
- the base material 11 itself or the base material 11 may have a plurality of layers and the lamination surface may be, for example, an ionomer resin, an ethylene-vinyl acetate copolymer, an ethylene-acrylic acid copolymer, or an ethylene-acrylate copolymer. If it is a heat-adhesive resin such as a united resin, it is only necessary to apply pressure under heating.
- the adhesive 13 is not particularly limited, but, for example, an acrylic resin, a polyester resin, a urethane resin, an epoxy resin, a vinyl chloride-butyl acetate copolymer resin, or the like can be used. Further, a method called a dry lamination method (also referred to as a dry lamination method) by those skilled in the art using a thermosetting resin which is less likely to be stained or deteriorated by an etching solution and has good workability is preferable. Further, an ionizing radiation curable resin which is cured (reacted) by ionizing radiation such as ultraviolet (UV) and electron beam (EB) is also preferable.
- UV ultraviolet
- EB electron beam
- ionizing radiation-curable resins include prepolymers (polyester (meth)) such as polyester (meth) acrylate, urethane (meth) acrylate, epoxy (meth) acrylate, and trimethylolpropane tri (meth).
- prepolymers polymers such as polyester (meth) acrylate, urethane (meth) acrylate, epoxy (meth) acrylate, and trimethylolpropane tri (meth).
- a monomer such as atalylate, dipentaerythritol hexa (meth) acrylate, or a mixture thereof is used (here, (meth) atalylate means acrylate or methacrylate).
- the dry lamination method is to apply an adhesive dispersed or dissolved in a solvent, apply it, dry it, laminate it, and then aged at 30 to 120 ° C for several hours to several days. In this way, the adhesive is cured and the two materials are laminated.
- a non-sono-revention lamination method which is an improved version of the dry lamination method, may be applied.
- the adhesive itself is applied without being dispersed or dissolved in a solvent, dried, and the laminated base material is laminated. This is a method in which two kinds of materials are laminated by aging at 0 to 120 ° C for several hours to several days to cure the adhesive.
- thermosetting adhesive an adhesive that can be cured by heat or ionizing radiation such as ultraviolet rays or electron beams
- a thermosetting adhesive specifically, a two-component curing type adhesive, for example, a urethane-based adhesive composed of a polyester urethane-based resin, a polyether urethane-based or an acrylic urethane-based resin, an acrylic adhesive, a polyester Adhesives, polyamide adhesives, polyvinyl acetate adhesives, epoxy adhesives, rubber adhesives and the like can be applied, but a two-part curable urethane adhesive is preferred.
- the two-part curable urethane-based resin include, for example, a polymer obtained by reacting a polyfunctional isocyanate with a hydroxy group-containing compound.
- Aromatic polyisocyanates such as diphenylmethane diisocyanate, polymethylene polyphenylene polyisocyanate, or hexamethylene diisocyanate, xylylene diisocyanate
- Polyfunctional isocyanates such as aliphatic (or alicyclic) polyisocyanates such as isophorone diisocyanate and hydroxyl group-containing compounds such as polyether polyols, polyester polyols and polyacrylate polyols
- a two-part urethane resin obtained by the reaction can be used.
- the adhesive is a mixture of a polyesterpolyurethane modified with a styrene-maleic acid copolymer, which is not stained or deteriorated by an etching solution, and an aliphatic polyesterate.
- an adhesive composition containing these components as a main component is dissolved or dispersed in an organic solvent, and is used for, for example, roll coating, reverse roll coating, gravure coating, gravure reverse coating, gravure offset coating, and kiss.
- Coating, wire coating, comma coating, knife coating, dip coating, flow coating, spray coating, etc., are applied, and the solvent is dried to form the adhesive layer for lamination of the present invention. be able to.
- the thickness of the adhesive layer 13 is about 0.1 to 20 m (dry state), preferably 1 to 10 / im.
- the adhesive is cured by aging at 30 to 120 ° C for several hours to several hours. And glue them together.
- the surface to which the adhesive is applied may be either the base material side or the conductive material part side.
- generation of bubbles in the laminate is suppressed over the entire rough surface.
- the non-solvent lamination method is basically the same as the dry lamination method, except that the adhesive composition is used as it is without dissolving or dispersing the adhesive composition in an organic solvent. In some cases, the adhesive composition is heated and heated in order to reduce the adhesiveness. .
- the pressure-sensitive adhesive As the pressure-sensitive adhesive, a known pressure-sensitive adhesive that can be adhered with pressure sensitivity can be used.
- the pressure-sensitive adhesive is not particularly limited.For example, natural rubber, butyl rubber 'polyisoprene, polyisobutylene ⁇ polychloroprene ⁇ ⁇ ⁇ ⁇ a synthetic rubber resin such as styrene-butadiene copolymer resin, and silicone-based resin such as dimethylpolysiloxane Resin, acryl-based resin, polyvinyl acetate Vinyl acetate resin such as ethylene-vinyl acetate copolymer, urethane-based resin, acrylonitrile, hydrocarbon resin, anolequinolephenone resin, rosin 'rosin triglyceride' hydrogen Gin-based resins such as mouth gins can be applied.
- the rubber-based adhesive includes chloroprene rubber, nitrile butadiene rubber, atalinole rubber, styrene butadiene rubber, styrene isoprene styrene, styrene butadiene styrene, styrene ethylene butadiene styrene, butino rubber, polyisobutylene rubber,
- One or more rice occupied rubbers such as natural rubber and polyisoprene rubber, phenolic resin, modified phenolic resin, ketone resin, alkyd resin, rosin resin, cumarone resin, styrene resin, petroleum resin, biel chloride resin
- One or more tackifiers are effective.
- Rubber adhesives have better chemical resistance, swelling resistance, resistance, adhesiveness, and peel strength than acrylic adhesives, so the adhesive part is exposed to acid I raw or alkaline substances. No peeling occurs. Rubber-based adhesives hardly hydrolyze in acidic or alkaline chemicals, and have a long adhesive life.
- FIG. 5A and FIG. 5B are a plan view and a side view illustrating processing in a winding roll shape.
- FIG. 5A is a plan view in which the electromagnetic wave shielding sheet 1 is imposed at regular intervals in a state where the sheet is unwound from a winding roll and expanded.
- FIG. 5B is a side view in which the conductive material layer 109 and the base material 11 are laminated. First, the blackening layers 23A and 23B and the protection layers 25A and 25B are formed on the metal layer 21 of the winding roll to obtain the conductive material layer 109.
- the adhesive 13 is applied to the heat-insulating layer 25 A of the conductive material layer 109 and dried, and then the base material 11 is overlaid and pressed. Further, if necessary, aging (curing, curing) for several hours to several days is performed in an atmosphere at 30 to 80 ° C. to obtain a winding roll 2.
- a resist layer 109a is provided in a mesh pattern on the conductive material layer 109 of the laminate, and the conductive material layer is not covered with the resist layer 109a. Is removed by etching and then formed into a mesh by photolithography to remove the resist layer 109a.
- the surface of the conductive material layer 109 of the laminate of the base material 11 and the conductive material layer 109 is formed into a mesh shape by photolithography.
- a roll-shaped laminate continuously wound in a belt shape is processed. While transporting the laminate continuously or intermittently, masking, etching, and resist peeling are performed in a stretched state without looseness.
- a photosensitive resist 109a is applied to the entire surface of the conductive material layer 109, dried, and then exposed in close contact with a predetermined pattern (line portion of a mesh) plate (mask). To expose in a predetermined pattern.
- a predetermined pattern line portion of a mesh plate (mask).
- the pattern is such that the opening is light-shielded and the line part is translucent. If the photosensitive resist is positive type (the exposed part is dissolved), the opening is a transparent pattern and the line part is a light-shielding pattern.
- a light source for the exposure for example, a mercury lamp is used. Water Develop, harden, bake.
- the resist is applied on a winding roll-shaped belt-shaped laminate (substrate 11 and conductive material layer 10 9) While continuously or intermittently transporting, a resist such as casein, PVA, or gelatin is applied to the conductive material layer 109 by dipping (dipping), curtain coating, or flowing.
- a dry film resist may be used instead of coating the resist, thereby improving workability.
- baking is performed at a temperature of 200 to 300 ° C. In order to prevent warpage of the laminate, the temperature is preferably as low as possible.
- Etching is performed after masking.
- a solution of ferric chloride and cupric chloride which can be easily used in circulation in the present invention in which etching is performed continuously is preferable.
- the etching is basically the same process as the equipment for manufacturing a shadow mask for a color TV cathode-ray tube for etching a strip-shaped continuous steel material, particularly a thin plate having a thickness of 20 to 80 win. . That is, the existing manufacturing equipment for the shadow mask can be diverted, and the entire process from masking to etching can be consistently and continuously produced, which is extremely efficient.
- the substrate may be washed with water, stripped of resist with an alkaline solution, washed, and then dried.
- the etching liquid is sprayed on the whole, so that parts other than the metal layer 21 are also attacked by the etching liquid.
- the adhesive layer 13 is exposed in the conventional case, and the adhesive layer 13 is colored by the influence of the etching solution.
- the color is expressed in the color system “L *, a *, b *, ⁇ *” in accordance with JIS-Z8729. * J increases and image visibility decreases.
- the protection layer 25A existing on the substrate 11 side is left not only in the line portion 107 but also in the opening portion 105 of the mesh. Therefore, the protection layer 25 A protects the adhesive layer 13. Therefore, the adhesive layer 13 is not affected by the etching solution and is not colored, so that the visibility of the image is not reduced. Also, the adhesiveness with the flattening layer 29 does not decrease.
- the adhesive layer 13 is usually contaminated by iron-sodium in the etching solution, but in the present invention, the adhesive layer 25 A protects the adhesive layer 13. Thus, this contamination can also be prevented. If there is no iron or sodium contamination, the electromagnetic shielding sheet rarely occurs when exposed to special environments such as high temperature and high humidity when mounted on a display. . Although the reason is not clear, it is presumed that the protection layer 25A is mainly composed of metal oxide, has high surface tension, and has good water wettability. As described above, by forming the protection layer 25A also in the opening 105, a plurality of unique effects can be exhibited.
- the mesh portion 103 is composed of a plurality of line portions 107 having openings 105.
- the shape of the opening 105 is not particularly limited. For example, a triangle such as a regular triangle, an isosceles triangle, and the like, a square, a rectangle, a rhombus, a trapezoid, and the like, a tetragon, a pentagon, a hexagon (turtle-shaped), An n-sided shape such as an octagon, a circle, an ellipse, etc. can be applied. A plurality of these openings are combined to form a mesh.
- the width W of the mesh portion 103 in the straight portion of the line portion 107 is within a predetermined value of 30% soil, and is transparent.
- the radius of curvature of the bank (the side surface around the opening) connecting the upper bottom and the lower bottom in the shape of the line cut surface (cross section) perpendicular to the bright substrate is 1.5 to 3 times the thickness of the metal layer. 0 times.
- the line width W of the mesh portion 103 is 5 to 25/2 m, and the pitch between lines is 150 to 500 m, and the outer periphery of the mesh portion 103 is described later. For a portion of 1 to 50 mesh or 0.15 to 15 mm in the vicinity of the portion, the distribution of the width of the line portion can be out of a predetermined value ⁇ 30%.
- the variation of the width W of the line portion 107 is, for example, assuming that the line width is 14 im, it is 14 ⁇ 4.2 ⁇ , and the range is 9.8 to 18.2 m. If this is the case, there will be no uneven shading of the mesh, and no black and / or white dot and linear defects. If the line width is wide or narrow, the mesh will be uneven. Also, when the width is large, when a human observes the display image, the wide part becomes a black point defect and the narrow part becomes a white point defect. If there are pons and white spots and / or black spots in the entire image, humans will feel extremely uncomfortable.
- the electromagnetic wave shielding sheet 1 of the present invention by manufacturing by a continuous photolithography method and by setting the line width variation within a predetermined range, the occurrence of shading unevenness of the mesh is extremely small, and the electromagnetic wave There is no problem in the shielding property and the transparency.
- non-uniform mesh shading and black and / or white dot and linear defects also occur when resist is sprayed onto unnecessary parts during resist coating. Manufacturing is extremely rare.
- the outer peripheral portion of the portion in contact with the outer peripheral portion of the mesh portion 103 may be excluded. This is because the mesh part 103 ends and the entire surface becomes the grounding frame part 101 consisting of the metal layer 21.Therefore, the regularity is interrupted, and the line width extends inside the grounding frame part 101. This is because the outer peripheral portion of the mesh may be subjected to another purpose such as temporarily expanding the width toward the grounding frame portion.
- the outer peripheral portion is 1 to 50 mesh, or 0.15 to 15 mm, preferably 1 to 25 mesh, or 0.3 to 7.5 mesh from the inner periphery of the grounding frame portion 101. mm
- the radius of curvature of the bank connecting the upper bottom and the lower bottom in the cross-sectional shape of the line section 107 orthogonal to the transparent substrate 11 of the line section 107 is the thickness of the metal layer.
- control is performed by the type of the resist and the conditions of the etching process.
- a dry resist solution resist is used as the resist, and the etching conditions are such that the Baume degree of the etchant is 35 degrees or more, and an aqueous solution of cupric chloride or ferric chloride is used as the etchant. If the temperature of the etchant is 35 degrees or more, It is desirable to set the spray flow rate to 2000 ml / min or more, and to perform etching by swinging the spray nozzle or swinging it to the left and right.
- the radius of curvature of the bank connecting the upper bottom and the lower bottom in the line section 107 was determined by slicing the line section 107 orthogonal to the transparent substrate 11 with a microtome and sputtering platinum palladium.
- the cut surface of the line section 107 is photographed with a 200 ⁇ magnification electron microscope, and it is estimated from the photographed photograph based on the upper and lower bottom values.
- the shape of the bank formed by etching is not necessarily a perfect circle, it may be a substantially circular circumferential line or a line close to a trapezoidal oblique line.
- the line segment including the upper and lower right edges and the upper and lower left edges and the lower and left edges should have a radius of curvature that is 1.5 to 3.0 times the thickness of the metal layer.
- the radius of curvature does not need to be constant and may vary, but may be in the range of 1.5 to 3.0 times the thickness of the metal layer.
- bias angle formed by the line with the lower surface of the electromagnetic wave shielding sheet is, for example, 45 degrees in the illustration of FIG. 1, but is not limited thereto. It may be appropriately selected taking into account the arrangement of pixels and the like.
- the line portion 107 of the mesh has a metal thickness, but the opening portion 105 becomes a cavity by removing the metal layer 21, and as a result, the line portion 107 is formed. In contrast, the opening 105 becomes a relatively concave portion.
- the conductive material portion 109 is in such a convex state.
- the adhesive or pressure-sensitive adhesive
- the unevenness is filled with the adhesive or the like.
- another member for example, a display (surface plate)
- the inside of the recess of the opening 105 is deteriorated. Air bubbles remain, and light is scattered at the interface between the air bubbles and the adhesive, resulting in a high haze and a whitened state. Therefore, it is preferable that the concave portions are filled and flattened.
- a transparent resin is applied to the recesses, filled and embedded, but at every corner of the recesses Otherwise, bubbles will remain and the transparency will deteriorate. Therefore, diluted or solvents or coating and drying a low viscosity, or by coating with degassed air, a planarization layer 2 9.
- the flat layer 29 should have high transparency, good adhesion to the metal constituting the mesh, and good adhesion to the adhesive in the next step. If the surface of the flattening layer 29 has projections, dents, or unevenness, the adhesive is applied onto the flattening layer 29 and the adhesive when the other adherend 32 is laminated. The bubble residual effect is also incomplete. Further, when an electromagnetic wave shielding sheet is installed on the front of the display, moire, interference unevenness, and Newton's ring are generated, which is not preferable. As a preferred method, a heat or ultraviolet curable resin is diluted with a solvent and applied in a state of reduced viscosity, and the resin is flowed and filled in the entire area of the concave portion of the opening 105, and the solvent is dried.
- the substrate is laminated with a substrate having excellent flatness and releasability, and the applied resin is cured by heat or ultraviolet rays to peel and remove the releasable substrate.
- the surface of the flattening layer 29 is transferred to the surface of the flat base material to form a smooth surface.
- the releasable substrate include biaxially stretched polyethylene terephthalate coated on the surface with a silicone resin as a release layer.
- the resin used for the flattening layer 29 is not particularly limited, and various natural or synthetic resins, heat or ionizing radiation curable resins, and the like can be applied. However, resin durability, applicability, flattening, smoothness, flatness, etc. From prepolymers (or oligomers) such as urethane (meth) acrylate, polyester (meth) acrylate, epoxy (meth) acrylate, trimethylopropanetri (meth) atarylate, dipentaerythritolonehexa (meta) acrylate And the like, or an ultraviolet curable resin composed of a mixture of these prepolymers and monomers.
- prepolymers or oligomers
- a near-infrared absorber that absorbs a specific near-infrared wavelength band to the resin used for the planarizing layer 29.
- a specific wavelength band of near infrared rays By absorbing a specific wavelength band of near infrared rays, a near infrared ray fountain radiated from the display is shielded, and malfunction of a device operated by near infrared rays such as a remote control device using the near infrared rays can be prevented.
- the specific wavelength of the near-infrared ray is about 780 to 120011 m. In particular, it is desirable to absorb at least 80% of the wavelength band of 800 to 110 nm.
- the near-infrared absorbing agent (referred to as NIR absorbing agent) is not particularly limited. Dyes that have steep absorption, have high light transmittance in the visible light band, and do not have large absorption at a specific wavelength in the visible light region can be used.
- NIR absorbing agent a phthalocyanine compound, an indium compound, a dimonium compound, a dithiol metal complex compound, or the like is used. These NIR absorbers can be used alone, but preferably, two or more are used in combination. For example, a mixed system of a diimmonium compound and a phthalocyanine compound can be used.
- the visible light region emitted from the PDP there are usually many orange colors, which are the emission spectrum of neon atoms, so that a color tone that absorbs to some extent the band around 570 to 655 nm of the visible light. It is preferable to contain a light-absorbing agent for correction.
- the dye include cyanine compounds, phthalocyanine compounds, naphthalocyanine compounds, naphthoquinone compounds, anthraquinone compounds, and dithiol complexes. Either one or both of these near-infrared absorbers and color tone correcting light absorbers may be added as necessary.
- the NIR absorption layers 31B and 31A are provided on the flattening layer 29 side and / or on the opposite substrate 11 side, respectively.
- the flattening layer 29 is provided on the NIR absorption layer 31 B shown in FIG. 1 when provided on the 9th surface, and the base material 11 is provided on the NIR absorption layer 31 A shown in FIG. 1 when provided on the 1st surface. is there.
- the NIR absorption layer 31B and the NIR absorption layer 31A can be formed by laminating a commercially available film having an NIR absorber (for example, trade name: No 2832, manufactured by Toyobo Co., Ltd.) with an adhesive, The NIR absorbent may be contained in the binder and applied.
- a polyester resin As the binder, a polyester resin, a polyurethane resin, an atari resin, a curing type using a reaction of an epoxy, acrylate, methacrylate, or isocyanate group which is cured by heat or ultraviolet rays can be applied.
- the electromagnetic wave shielding sheet according to the present invention is generally used by being laminated on another adherend via an adhesive layer.
- the adherend 32 may be a transparent substrate (protective layer or reinforcing layer), and various functionalities formed by further forming an antireflection layer, a hard coat layer, an antifouling layer, an antiglare layer, etc. on the transparent substrate.
- a sheet or a display main body may be used.
- the adherend may be on the base material 11 side, the conductive material portion 109 side, or on both sides.
- FIG. 7 shows a case where the adherend 32 is laminated on the conductive member 109 side. In this figure, an adherend 32 is laminated on a conductive member via an adhesive layer 33.
- the adhesive layer 33 is not directly applied to the conductive material portion 109, but is applied to the flattening layer 29 (through the adhesive layer). Bubble B can be prevented from remaining.
- An anti-reflection layer (referred to as an AR layer) may be provided on the observation side of the electromagnetic wave shielding sheet.
- the anti-reflection layer is for preventing reflection of visible light, and many single-layer and multi-layer structures are commercially available.
- the multilayer has a high refractive index layer and a low refractive index layer that are alternately laminated.
- the high refractive index layer include niobium oxide, titanium oxide, zirconium oxide, and ITO. Are silicon oxide, magnesium fluoride and the like. Some have a layer having a fine uneven surface that irregularly reflects external light.
- the antireflection (AR) layer may be provided with a hard coat layer, an antifouling layer, and an antiglare layer.
- the hard coat layer is a layer having a hardness of H or more in a pencil hardness test of JIS-K540, and is made of polyester (meth) acrylate, urethane (meth) acrylate, epoxy (meth) acrylate, and the like.
- the functional (meth) acrylate is cured by heat or ionizing radiation.
- the antifouling layer is a water-repellent and oil-repellent coat to which a siloxane-based or fluorinated alkylsilyl compound can be applied.
- the anti-glare layer is a layer having a fine uneven surface that irregularly reflects external light.
- the substrate has a rigidity of 1 to 1 Omm for a large display, but has a thickness of 0 to 10 mm for a small display such as a character display tube.
- a resin film of 0.1 to 0.5 mm is used, and it may be appropriately selected according to the size and use of the display. Alternatively, it may be attached directly to the front of the spray and laminated.
- the side of the metal layer having the mesh shape is the observation side, and at least a blackening layer may be provided on the side of the metal layer.
- the grounding frame 101 Since the grounding frame 101 is exposed to the surface, it is easy to pull out the electrodes and to easily ground. Note that the flattening layer is not provided on the frame portion 101 for grounding. Note that the protection layer 25B and the blackening treatment 23B are extremely thin layers and do not hinder grounding. Further, since the grounding frame portion 101 is blackened and the black surface is the observation side, the black printing provided in the frame shape of the front glass plate becomes unnecessary, so that the process can be shortened and the cost can be reduced. It is advantageous. Next, specific examples will be described.
- Example 1 As the conductive material layer 109 including the metal layer 21, black treated layers 23A and 23B made of copper-cobalt alloy particles having an average particle diameter of 0.3 ⁇ m, An electrolytic copper foil with a thickness of 10 ⁇ having a chromate (treatment) layer 25 A and 25 B provided thereon was prepared.
- a chromate treatment layer surface of the copper foil has a thickness of 1 0 0 / transparent biaxially oriented PET (polyethylene terephthalate) of zm film A 4 3 0 0 (manufactured by Toyobo Co., Ltd., trade name) and a base material consisting of After laminating with a two-component curable polyurethane-based adhesive, aging was carried out at 56 for 4 days.
- the base agent Takerac A-310 (polyol) and curing agent A-10 (isosocyanate) both manufactured by Takeda Pharmaceutical Co., Ltd., trade name
- the base agent Takerac A-310 polyol
- curing agent A-10 isosocyanate
- Chromate treatment was performed using Alsurf 100% (manufactured by Nippon Paint Co., Ltd., trade name: Chromate treatment agent) at a concentration of 0.1% for 1 minute at 40 ° C. Dried at 0 ° C for 10 minutes.
- a production line for a color TV shadow mask which performs a process from masking to etching in a continuous band, was diverted.
- a photosensitive resist made of casein was applied over the entire outer surface of the conductive material layer of the laminate film by a flowing method. Conveyed to the next station, with a square opening and a line width of 2 2 / im, a line spacing (pitch) of 300 // m, a bias angle of 49 degrees, and a pattern plate with a ground electrode electrode width of 5 mm ( Using a photomask, contact exposure was performed using a mercury lamp. While transporting the stations one after another, water development was performed, hard-metal processing was carried out, and further burung processing was performed at 80 ° C.
- Example 2 An electromagnetic wave shielding sheet of Example 2 was obtained in the same manner as in Example 1 except that zinc oxide was contained in the chromate (treatment) layer.
- Example 3 An electromagnetic wave shielding sheet of Example 3 was obtained in the same manner as in Example 1 except that nickel oxide was used by a plating method instead of the chromate (treatment) layer.
- Example 4 An electromagnetic wave shielding sheet of Example 4 was obtained in the same manner as in Example 1 except that nickel oxide and zinc oxide were used instead of the chromate (treatment) layer by a plating method.
- Example 5 The electromagnetic wave shielding sheet of Example 5 was prepared in the same manner as in Example 1 except that nickel oxide, zinc oxide, and copper oxide were used in place of the chromate (treatment) layer by plating. Obtained.
- Comparative Example 1 An electromagnetic wave shielding sheet of Comparative Example 1 was obtained in the same manner as in Example 1 except that the mouth mate (treatment) layer 25A on the substrate side was not provided.
- Example 6 A flattening layer composition having the following composition was applied to the surface of the mesh portion of the electromagnetic wave shielding sheet of Example 1, and a 50-m-thick SP—PET 20—BU (manufactured by Tocello, Inc.) After laminating a surface release treated PET film (trade name), it was exposed to 20 O mj Z cm 2 (converted to 365 nm) using a high-pressure mercury lamp. Then, when the SP-PET 20-BU was peeled off, the opening for the mesh portion was filled with the flattening layer composition to obtain the flattened electromagnetic wave shielding sheet of Example 2.
- SP—PET 20—BU manufactured by Tocello, Inc.
- composition for the flattening layer 20 parts by mass of N-butyl-1-pyrrolidone, 25 parts by mass of pentenyl atearylate, and oligoester acrylate (M-800, manufactured by Toagosei Co., Ltd.) 5 2 parts by mass and 3 parts by mass of 1-hydroxycyclohexylfurnyl ketone (Irgacure 1884, manufactured by Ciba-Geigy Co., Ltd.) were used.
- Example 7 An electromagnetic wave shielding sheet was obtained in the same manner as in Example 6, except that the flattening layer composition of Example 6 contained 1 part by mass of a thiol-nickel complex.
- Example 8 Electromagnetic wave shielding was performed in the same manner as in Example 6, except that an NIR film No. 2832 (manufactured by Toyobo Co., Ltd., near-infrared absorbing film) was laminated on the flattened layer surface of Example 6 with an adhesive. I got a sheet.
- NIR film No. 2832 manufactured by Toyobo Co., Ltd., near-infrared absorbing film
- Example 9 (Direct application) Same as Example 1 except that the surface of the copper-cobalt alloy particles, which is not a chromate (treatment) layer, is laminated with a PET film, and further similar to Example 6. A flattening layer was formed to obtain an electromagnetic wave shielding sheet of Example 9.
- the electromagnetic wave shielding sheets of Examples and Comparative Examples were mounted on a PDP panel, and the visibility of a displayed image was visually observed. The near infrared absorption state was also measured.
- Comparative Example 1 the opening was slightly cloudy, and the image displayed on the PDP display had poor contrast and poor visibility.
- the sheet for electromagnetic wave shielding of this invention it arrange
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003254833A AU2003254833A1 (en) | 2002-08-08 | 2003-08-06 | Electromagnetic wave shielding sheet |
| US10/519,454 US7304250B2 (en) | 2002-08-08 | 2003-08-06 | Electromagnetic shielding sheet |
| KR1020057000666A KR101095713B1 (ko) | 2002-08-08 | 2003-08-06 | 전자파 차폐용 시트 |
| JP2004527349A JP4288235B2 (ja) | 2002-08-08 | 2003-08-06 | 電磁波遮蔽用シート |
| DE10393018T DE10393018T5 (de) | 2002-08-08 | 2003-08-06 | Blatt zur elektromagnetischen Abschirmung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002230845 | 2002-08-08 | ||
| JP2002-230845 | 2002-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004016060A1 true WO2004016060A1 (ja) | 2004-02-19 |
Family
ID=31711726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/010022 Ceased WO2004016060A1 (ja) | 2002-08-08 | 2003-08-06 | 電磁波遮蔽用シート |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7304250B2 (ja) |
| JP (1) | JP4288235B2 (ja) |
| KR (1) | KR101095713B1 (ja) |
| CN (1) | CN100438738C (ja) |
| AU (1) | AU2003254833A1 (ja) |
| DE (1) | DE10393018T5 (ja) |
| TW (1) | TWI253321B (ja) |
| WO (1) | WO2004016060A1 (ja) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006088059A1 (ja) * | 2005-02-15 | 2006-08-24 | Fujifilm Corporation | 透光性導電性膜、透光性電磁波シールド膜および光学フィルターならびにディスプレイ用フィルターの製造方法 |
| WO2006098334A1 (ja) * | 2005-03-15 | 2006-09-21 | Fujifilm Corporation | 透光性電磁波シールド膜、光学フィルター、およびプラズマテレビ |
| JP2007096107A (ja) * | 2005-09-29 | 2007-04-12 | Fujimori Kogyo Co Ltd | 電磁波シールド材ロール体及びその製造方法 |
| JP2008147507A (ja) * | 2006-12-12 | 2008-06-26 | Fujimori Kogyo Co Ltd | 電磁波シールド材ロール体及びその製造方法、ディスプレイ用電磁波シールドフィルム |
| JP2008158479A (ja) * | 2006-11-30 | 2008-07-10 | Sumitomo Metal Mining Co Ltd | 耐熱遮光フィルムとその製造方法、及びそれを用いた絞り又は光量調整装置 |
| JP2008216951A (ja) * | 2007-02-06 | 2008-09-18 | Sumitomo Metal Mining Co Ltd | 耐熱遮光フィルムとその製造方法、及びそれを用いた絞り又は光量調整装置 |
| US7655873B2 (en) | 2004-09-01 | 2010-02-02 | Samsung Corning Co., Ltd. | Electromagnetic shielding film, plasma display panel filter using the electromagnetic shielding film, plasma display panel device including the electromagnetic shielding film, and method of manufacturing the electromagnetic shielding film |
| WO2011121801A1 (ja) * | 2010-03-30 | 2011-10-06 | Jx日鉱日石金属株式会社 | 電磁波シールド用複合体 |
| US9549471B2 (en) | 2010-07-15 | 2017-01-17 | Jx Nippon Mining & Metals Corporation | Copper foil composite |
| US9955574B2 (en) | 2012-01-13 | 2018-04-24 | Jx Nippon Mining & Metals Corporation | Copper foil composite, formed product and method of producing the same |
| US9981450B2 (en) | 2012-01-13 | 2018-05-29 | Jx Nippon Mining & Metals Corporation | Copper foil composite, formed product and method of producing the same |
| US10178816B2 (en) | 2011-05-13 | 2019-01-08 | Jx Nippon Mining & Metals Corporation | Copper foil composite, copper foil used for the same, formed product and method of producing the same |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060194020A1 (en) * | 2003-09-01 | 2006-08-31 | Dai Nippon Printing Co., Ltd | Electromagnetic shielding film for plasma display |
| KR20060042478A (ko) * | 2004-11-09 | 2006-05-15 | 엘지전자 주식회사 | 마이크로렌즈배열를 적용한 플라즈마 디스플레이 패널의전면필터 |
| KR100730135B1 (ko) * | 2004-12-09 | 2007-06-19 | 삼성에스디아이 주식회사 | 플라즈마 디스플레이 장치 |
| KR20080011699A (ko) * | 2005-06-02 | 2008-02-05 | 도판 인사츠 가부시키가이샤 | 전자파 차폐 적층체 및 그 제조 방법 |
| US7595112B1 (en) * | 2006-07-31 | 2009-09-29 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Resin infusion of layered metal/composite hybrid and resulting metal/composite hybrid laminate |
| KR20080013572A (ko) * | 2006-08-09 | 2008-02-13 | 엘지전자 주식회사 | 플라즈마 디스플레이 패널 및 그 전면필터의 제조방법 |
| CN101595194B (zh) * | 2007-02-06 | 2012-02-08 | 日本化成株式会社 | 粘合性树脂组合物和粘合方法 |
| US20080287047A1 (en) * | 2007-05-18 | 2008-11-20 | Sang Fang Chemical Industry Co., Ltd. | Polishing pad, use thereof and method for making the same |
| KR101335769B1 (ko) * | 2007-06-04 | 2013-12-02 | 엘지전자 주식회사 | 디스플레이 장치 |
| KR101335741B1 (ko) * | 2007-06-04 | 2013-12-02 | 엘지전자 주식회사 | 디스플레이 장치 |
| KR101361295B1 (ko) * | 2007-06-04 | 2014-02-11 | 엘지전자 주식회사 | 디스플레이 장치 |
| KR101012587B1 (ko) * | 2007-06-04 | 2011-02-01 | 엘지전자 주식회사 | 디스플레이 장치 |
| KR101414961B1 (ko) * | 2007-12-03 | 2014-07-04 | 엘지전자 주식회사 | 디스플레이 장치 |
| US7833628B2 (en) * | 2008-01-07 | 2010-11-16 | Innovation & Infinigy Global Corp. | Coating structure with an anti-reflection function and an anti-electromagnetic wave function |
| JP2010050166A (ja) * | 2008-08-19 | 2010-03-04 | Shin Etsu Polymer Co Ltd | プリント配線板 |
| TWI468103B (zh) * | 2011-07-01 | 2015-01-01 | Sen Tien Printing Factory Co Ltd | 具抗電磁波層之防護薄膜及其製作方法 |
| TWI451117B (zh) * | 2011-12-07 | 2014-09-01 | Innolux Corp | 多功能光學膜、其之製造方法、及包含其之影像顯示系統 |
| TWI444132B (zh) * | 2011-12-08 | 2014-07-01 | Ind Tech Res Inst | 電磁波屏蔽複合膜及具有該複合膜之軟性印刷電路板 |
| TWI486260B (zh) * | 2012-11-16 | 2015-06-01 | Nanya Plastics Corp | 具有黑色極薄銅箔之銅箔結構及其製造方法 |
| TWI462662B (zh) * | 2013-02-06 | 2014-11-21 | Nanya Plastics Corp | 複合式雙面黑色銅箔及其製造方法 |
| US20170066225A1 (en) * | 2014-04-22 | 2017-03-09 | Sabic Global Technologies B.V. | Integrated flexible transparent conductive film |
| EP3177677A1 (en) | 2014-08-07 | 2017-06-14 | SABIC Global Technologies B.V. | Conductive multilayer sheet for thermal forming applications |
| CN106663505B (zh) * | 2014-11-05 | 2018-01-23 | 日本写真印刷株式会社 | 电气配线构件的制造方法、以及电气配线构件 |
| CN106572587B (zh) * | 2015-10-08 | 2019-02-19 | 庆鼎精密电子(淮安)有限公司 | 柔性电路板及其制作方法 |
| FR3094828A1 (fr) * | 2019-04-08 | 2020-10-09 | Airbus Operations (S.A.S.) | Procédé de fabrication d’une couche poreuse d’une structure d’absorption acoustique, couche poreuse d’une structure d’absorption acoustique ainsi obtenue et structure d’absorption acoustique comprenant ladite couche poreuse |
| CN113973487B (zh) * | 2020-07-24 | 2025-11-04 | 广州方邦电子股份有限公司 | 一种屏蔽膜及线路板 |
| WO2023013538A1 (ja) * | 2021-08-05 | 2023-02-09 | パナソニックIpマネジメント株式会社 | 電磁シールド及び通信ユニット |
| KR20240074834A (ko) * | 2021-10-04 | 2024-05-28 | 다이니폰 인사츠 가부시키가이샤 | 배선 기판, 모듈 및 화상 표시 장치 |
| CN113882610A (zh) * | 2021-11-15 | 2022-01-04 | 怀化大隆农业科技有限公司 | 一种抗静电的竹木装饰板 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1075087A (ja) * | 1996-07-01 | 1998-03-17 | Hitachi Chem Co Ltd | 電磁波シールド性と赤外線遮蔽性を有する接着フィルム及び該フィルムを用いたディスプレイ、電磁波遮蔽構成体 |
| JP2001217589A (ja) * | 2000-02-03 | 2001-08-10 | Mitsui Chemicals Inc | 積層体およびそれを用いた電磁波シールド |
| JP2002009484A (ja) * | 2000-06-23 | 2002-01-11 | Kyodo Printing Co Ltd | シールド材及びその製造方法 |
| JP2002185184A (ja) * | 2000-12-18 | 2002-06-28 | Dainippon Printing Co Ltd | 電磁波シールド材及びその製造方法 |
| JP2002190692A (ja) * | 2000-12-22 | 2002-07-05 | Tomoegawa Paper Co Ltd | 電磁波シールドシートおよびそれを用いた電磁波シールド製品ならびにそれらの製造方法 |
| JP2003249791A (ja) * | 2002-02-25 | 2003-09-05 | Hitachi Chem Co Ltd | ディスプレイ用光透過性電磁波シールドフィルタ及びその基材とその製造方法 |
| JP2003258484A (ja) * | 2002-02-27 | 2003-09-12 | Hitachi Chem Co Ltd | 電磁波シールドフィルム及びその製造方法並びにディスプレイ |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1270523A (en) * | 1968-06-19 | 1972-04-12 | United Glass Ltd | Treatment of glass containers |
| JP3145309B2 (ja) * | 1996-06-12 | 2001-03-12 | 富士通株式会社 | 平面表示装置及びプラズマディスプレイパネルの近赤外線放出影響防止方法 |
| JPH11330772A (ja) * | 1998-03-17 | 1999-11-30 | Gunze Ltd | 高電磁波シールド性透明シート |
| JPH11266095A (ja) * | 1998-03-17 | 1999-09-28 | Dainippon Printing Co Ltd | 電磁波遮蔽板 |
| JP2979021B2 (ja) * | 1998-04-07 | 1999-11-15 | 日本写真印刷株式会社 | 透視性電磁波シールド材料とその製造方法 |
| JP4002672B2 (ja) * | 1998-06-03 | 2007-11-07 | 共同印刷株式会社 | 電磁波シールド付き光学フィルタ及びその製造方法 |
| JP2974665B1 (ja) * | 1998-08-28 | 1999-11-10 | 日本写真印刷株式会社 | 透光性電磁波シールド材とその製造方法 |
| JP2000223886A (ja) | 1999-01-28 | 2000-08-11 | Nisshinbo Ind Inc | 透視性電磁波シールド材及びその製造方法 |
| US6599681B2 (en) * | 2001-07-13 | 2003-07-29 | Shielding Express | Electromagnetic filter for display screens |
| KR100945428B1 (ko) * | 2003-02-12 | 2010-03-08 | 엘지전자 주식회사 | 전면필터 |
-
2003
- 2003-08-06 JP JP2004527349A patent/JP4288235B2/ja not_active Expired - Fee Related
- 2003-08-06 CN CNB038192330A patent/CN100438738C/zh not_active Expired - Fee Related
- 2003-08-06 KR KR1020057000666A patent/KR101095713B1/ko not_active Expired - Fee Related
- 2003-08-06 AU AU2003254833A patent/AU2003254833A1/en not_active Abandoned
- 2003-08-06 US US10/519,454 patent/US7304250B2/en not_active Expired - Lifetime
- 2003-08-06 WO PCT/JP2003/010022 patent/WO2004016060A1/ja not_active Ceased
- 2003-08-06 DE DE10393018T patent/DE10393018T5/de not_active Withdrawn
- 2003-08-07 TW TW092121701A patent/TWI253321B/zh not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1075087A (ja) * | 1996-07-01 | 1998-03-17 | Hitachi Chem Co Ltd | 電磁波シールド性と赤外線遮蔽性を有する接着フィルム及び該フィルムを用いたディスプレイ、電磁波遮蔽構成体 |
| JP2001217589A (ja) * | 2000-02-03 | 2001-08-10 | Mitsui Chemicals Inc | 積層体およびそれを用いた電磁波シールド |
| JP2002009484A (ja) * | 2000-06-23 | 2002-01-11 | Kyodo Printing Co Ltd | シールド材及びその製造方法 |
| JP2002185184A (ja) * | 2000-12-18 | 2002-06-28 | Dainippon Printing Co Ltd | 電磁波シールド材及びその製造方法 |
| JP2002190692A (ja) * | 2000-12-22 | 2002-07-05 | Tomoegawa Paper Co Ltd | 電磁波シールドシートおよびそれを用いた電磁波シールド製品ならびにそれらの製造方法 |
| JP2003249791A (ja) * | 2002-02-25 | 2003-09-05 | Hitachi Chem Co Ltd | ディスプレイ用光透過性電磁波シールドフィルタ及びその基材とその製造方法 |
| JP2003258484A (ja) * | 2002-02-27 | 2003-09-12 | Hitachi Chem Co Ltd | 電磁波シールドフィルム及びその製造方法並びにディスプレイ |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7655873B2 (en) | 2004-09-01 | 2010-02-02 | Samsung Corning Co., Ltd. | Electromagnetic shielding film, plasma display panel filter using the electromagnetic shielding film, plasma display panel device including the electromagnetic shielding film, and method of manufacturing the electromagnetic shielding film |
| JPWO2006088059A1 (ja) * | 2005-02-15 | 2008-07-03 | 富士フイルム株式会社 | 透光性導電性膜、透光性電磁波シールド膜および光学フィルターならびにディスプレイ用フィルターの製造方法 |
| JP4613201B2 (ja) * | 2005-02-15 | 2011-01-12 | 富士フイルム株式会社 | 透光性導電性膜、透光性電磁波シールド膜および光学フィルターならびにディスプレイ用フィルターの製造方法 |
| TWI403761B (zh) * | 2005-02-15 | 2013-08-01 | Fujifilm Corp | 透光性導電性膜之製法 |
| WO2006088059A1 (ja) * | 2005-02-15 | 2006-08-24 | Fujifilm Corporation | 透光性導電性膜、透光性電磁波シールド膜および光学フィルターならびにディスプレイ用フィルターの製造方法 |
| CN101120626B (zh) * | 2005-02-15 | 2012-11-28 | 富士胶片株式会社 | 透光性导电膜、透光性电磁波屏蔽膜、滤光器和制造显示过滤器的方法 |
| JPWO2006098334A1 (ja) * | 2005-03-15 | 2008-08-21 | 富士フイルム株式会社 | 透光性電磁波シールド膜、光学フィルター、およびプラズマテレビ |
| WO2006098334A1 (ja) * | 2005-03-15 | 2006-09-21 | Fujifilm Corporation | 透光性電磁波シールド膜、光学フィルター、およびプラズマテレビ |
| US7796327B2 (en) | 2005-03-15 | 2010-09-14 | Fujifilm Corporation | Light transmitting electromagnetic wave shielding film, optical filter and plasma display panel |
| JP2007096107A (ja) * | 2005-09-29 | 2007-04-12 | Fujimori Kogyo Co Ltd | 電磁波シールド材ロール体及びその製造方法 |
| JP2008158479A (ja) * | 2006-11-30 | 2008-07-10 | Sumitomo Metal Mining Co Ltd | 耐熱遮光フィルムとその製造方法、及びそれを用いた絞り又は光量調整装置 |
| JP2008147507A (ja) * | 2006-12-12 | 2008-06-26 | Fujimori Kogyo Co Ltd | 電磁波シールド材ロール体及びその製造方法、ディスプレイ用電磁波シールドフィルム |
| JP2008216951A (ja) * | 2007-02-06 | 2008-09-18 | Sumitomo Metal Mining Co Ltd | 耐熱遮光フィルムとその製造方法、及びそれを用いた絞り又は光量調整装置 |
| WO2011121801A1 (ja) * | 2010-03-30 | 2011-10-06 | Jx日鉱日石金属株式会社 | 電磁波シールド用複合体 |
| US9549471B2 (en) | 2010-07-15 | 2017-01-17 | Jx Nippon Mining & Metals Corporation | Copper foil composite |
| US10178816B2 (en) | 2011-05-13 | 2019-01-08 | Jx Nippon Mining & Metals Corporation | Copper foil composite, copper foil used for the same, formed product and method of producing the same |
| US9955574B2 (en) | 2012-01-13 | 2018-04-24 | Jx Nippon Mining & Metals Corporation | Copper foil composite, formed product and method of producing the same |
| US9981450B2 (en) | 2012-01-13 | 2018-05-29 | Jx Nippon Mining & Metals Corporation | Copper foil composite, formed product and method of producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003254833A1 (en) | 2004-02-25 |
| US7304250B2 (en) | 2007-12-04 |
| TWI253321B (en) | 2006-04-11 |
| CN1675973A (zh) | 2005-09-28 |
| US20060088690A1 (en) | 2006-04-27 |
| KR101095713B1 (ko) | 2011-12-21 |
| JP4288235B2 (ja) | 2009-07-01 |
| KR20050029304A (ko) | 2005-03-25 |
| DE10393018T5 (de) | 2005-08-25 |
| TW200409587A (en) | 2004-06-01 |
| JPWO2004016060A1 (ja) | 2005-12-02 |
| CN100438738C (zh) | 2008-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4288235B2 (ja) | 電磁波遮蔽用シート | |
| JP4445858B2 (ja) | 電磁波遮蔽用シート | |
| JP4334477B2 (ja) | 電磁波遮蔽用シート | |
| JP4339789B2 (ja) | 電磁波遮蔽用シートおよびその製造方法 | |
| JP4346607B2 (ja) | 電磁波遮蔽用シート、ディスプレイ用前面板及び電磁波遮蔽用シートの製造方法 | |
| JPWO2006011456A1 (ja) | 電磁波シールド装置 | |
| KR20060118553A (ko) | 전자파 차폐재 및 그 제조방법 | |
| JPWO2005072039A1 (ja) | ディスプレイ用前面板及びその製造方法 | |
| WO2005074347A1 (ja) | 電磁波シールドフィルム、及びその製造方法 | |
| JPWO2006011457A1 (ja) | 電磁波シールド装置 | |
| JP2003086991A (ja) | 電磁波遮蔽用部材及びその製造方法 | |
| KR20060126637A (ko) | 전자파 차폐시트 및 그 제조방법 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| ENP | Entry into the national phase |
Ref document number: 2006088690 Country of ref document: US Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 10519454 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1020057000666 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2004527349 Country of ref document: JP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 20038192330 Country of ref document: CN |
|
| WWP | Wipo information: published in national office |
Ref document number: 1020057000666 Country of ref document: KR |
|
| 122 | Ep: pct application non-entry in european phase | ||
| WWP | Wipo information: published in national office |
Ref document number: 10519454 Country of ref document: US |