Classifications

• • 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
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
• • 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
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
  • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
• • 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
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
• • 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
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
  • B32B17/10183—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer being not continuous, e.g. in edge regions
  • B32B17/10192—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer being not continuous, e.g. in edge regions patterned in the form of columns or grids
• • 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
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10541—Functional features of the laminated safety glass or glazing comprising a light source or a light guide
• • 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
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
  • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
• • 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
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
  • B32B17/10816—Making laminated safety glass or glazing; Apparatus therefor by pressing
  • B32B17/10825—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts
  • B32B17/10862—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using pressing-rolls
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
  • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
  • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
• • 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
  • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
  • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
  • F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
• • 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
  • H05K3/22—Secondary treatment of printed circuits
  • H05K3/28—Applying non-metallic protective coatings
  • H05K3/281—Applying non-metallic protective coatings by means of a preformed insulating foil
• • 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
  • H05K3/22—Secondary treatment of printed circuits
  • H05K3/28—Applying non-metallic protective coatings
  • H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components

Definitions

• the present invention relates to laminated assemblies incorporating light emitting diodes.
• light-emitting diodes as a light source has so far been limited to a few embodiments while these same diodes have important uses in the field of display.
• the diodes are currently mainly used in the automotive field for the construction of brake light or for traffic lights. In these applications their own qualities of economic and monochromatic sources are particularly welcome.
• the invention proposes to produce assemblies constituting light sources comprising diodes in number, under economic industrial conditions.
• the invention also proposes to provide intermediate basic products that can lead to a wide variety of finished products.
• the invention proposes to make assemblies that are capable of being split into smaller units of variable dimensions and having a desired number of diodes, thus providing lighting characteristics determined according to the use projected.
• the inventors have sought the conditions for producing large laminated assemblies.
• a supposed difficulty for this approach lay in the ability to produce these laminated assemblies incorporating solid elements inside the laminate without introducing defects and without risk of modifying in a negative way the essential qualities of these laminates, in particular the qualities of mechanical resistance. . If in small size, and using techniques that are not very automated, the production is relatively easy to produce, the production of large volumes raised a priori certain difficulties.
• the incorporation of a multiplicity of elements of much greater thickness should appear particularly delicate.
• the luminescent diodes available in quantity have dimensions of the order of a few millimeters and their thickness is for the smallest of a few tenths of millimeters.
• laminated glazing systematically comprises at least one sheet of a rigid transparent material, such as a glass sheet or a sheet of an organic glass type material such as polyacrylates or polycarbonates. In this or these sheets, is associated with a sheet that gives all of the properties of impact resistance.
• the additional sheet called interlayer is of the thermoplastic type. It generally consists of materials such as polyvinyl acetals, especially polyvinyl butyras, which is widely used in laminated safety glass, but also polyvinyl chlorides, polyolefins, and the like.
• LAMLITE (bilayer)
• it is associated with a polyurethane material offering a certain resistance to scratches despite a substantially less hardness than that of glass sheets or organic glass.
• the lamination is carried out either on elements with the final dimensions of the product, or on intermediate products.
• the formation of laminated automotive glazing is part of the first category, that of architectural glazing is usually in the second category.
• foliation occurs most often on the volumes produced directly on the flat glass production lines.
• the traditional dimensions for the largest volumes are of the order of 3x6m or even more. After laminating these volumes are cut to the dimensions required by the building companies customers.
• the modes of assembly may differ substantially depending in particular on the dimensions of the parts considered, but also the nature of the intermediate sheet. All techniques, however, involve the use of temperature and pressure. These two conditions have the effect of making the thermoplastic material more malleable, and to impose a contact of this material with the rigid substrate to obtain good adhesion.
• the pressure exerted during the assembly can result from the evacuation of the assembled products, which has the additional function of eliminating the air present between the joined sheets, ie the mechanical compression of the constituent sheets, compression which can be associated with a more or less important vacuum.
• the only practical possibility is for the application of the pressure, to subject the sheets to one or more calendering operations, preferably under a temperature favoring the moderate softening of the thermoplastic sheet.
• the diodes When the diodes are incorporated in a laminated assembly, they are necessarily located in the thermoplastic type material. For this reason the thickness of the introduced diodes can not be greater than that of this material or this sheet. To provide a minimum of security, vis-à-vis a possible crushing of the diodes on the rigid substrate, it appears necessary to maintain a difference between the natural thickness of the diodes and that of the sheet in which these diodes are incorporated.
• the tests conducted by the inventors have shown that in order to guarantee a good incorporation of the diodes and simultaneously to avoid subjecting them to mechanical stresses liable to damage them, it is preferable to have a slightly thicker material than the diodes, but this thickness additional is kept as low as possible especially for cost reasons, and by that it is generally better to have thin sets.
• the thickness of the material in which the diodes are incorporated is preferably not more than 50% greater than that of the diodes. More preferably this thickness is not more than 20% greater than that of the diodes, and preferably not more than 10%.
• the sheet of material is subjected to embossing in the pattern corresponding to the subsequent implantation of the diodes. This arrangement appears useful when the density of the diodes is very high and the pressure necessary to make them penetrate into the plastic material becomes too great.
• the envelope of the diodes preferably has a shape that allows good penetration into the thermoplastic material.
• thermoplastic material it is also possible to coat them in a film of the material constituting the thermoplastic sheet. Fusion then leads to perfect homogeneity.
• the invention can also be implemented by using a plurality of interlayer sheets. This arrangement is particularly necessary when the thickness of the interlayer sheet is not commercially available.
• the use of several sheets is also advantageous when to introduce the diodes in the interlayer a first sheet is provided with "housings" cut in the sheet dimensions and locations for receiving the diodes. In this case the pierced sheet of these housings is advantageously completed by a uniform sheet which protects the diodes against a rigid contact with the glass sheet.
• the interlayer sheets represent a significant part of the cost price of these products. It is therefore preferable to choose the sheets on the one hand of standard thickness, and on the other hand of thickness the smallest possible. For the necessary thickness, reference is made to what is said above.
• the choice of the diodes is at least partly controlled by their thickness so that they best meet this need to use the less thick interlayer sheets.
• LAMLITE - Figure la shows schematically in section, the constituent elements before an assembly according to the invention before;
• FIG. 2 is a block diagram of a process for forming an assembly according to the invention.
• FIG. 3a is another set of constituent elements before assembly according to the invention.
• FIG. 4 is a variant of FIG. 3a in which an adhesive is interposed in the assembly;
• FIG. 5 is an assembly variant according to the invention in which each of the glass sheets is coated with a conductive layer.
• the assembly consists of two sheets of glass 1 and 2 joined by means of a spacer 3 PVB type.
• the glass sheet 2 is coated with a conductive thin layer 4.
• the layer in question is one of those commonly used on glazing.
• the layer is obtained for example by pyrolysis, in particular CVD, ITO type layer, or SnO 2 doped with fluorine or antimony, or by vacuum sputtering techniques, especially those comprising one or more metal layers associated with dielectric layers.
• the conductive thin film 4 forms a network whose pattern is obtained either directly by printing the pattern or by locally interrupting the layer initially applied uniformly.
• This pattern can be achieved for example by the use of masks during the application or by localized ablation.
• the elimination of the layer is obtained in the traditional way, for example by mechanical or chemical abrasion or by laser treatment.
• the thickness of the layer must be sufficient to minimize its electrical resistance.
• the layer 4 when the light is to be transmitted through the sheet 2, the layer 4 must not be an obstacle to transmission. In this case the thickness of the layer is necessarily limited. To satisfy these two contradictory requirements it is advisable to choose the best compromise solution taking into account that the nature of the material constituting this layer also offers a certain latitude, all layers not having the same conductivity.
• the most conductive layers may be a few nanometers.
• the less conductive layers may have a thickness of a few tens or even hundreds of nanometers.
• Series of light-emitting diodes 6 are arranged on the surface of the sheet 2.
• the diodes are connected to the conductive network formed in the layer 4.
• the diodes are each connected to two separate conductors connected to each of the poles of the DC power supply. .
• each diode is connected to the conductive layer for example by points 7 of conductive adhesive in a manner known per se.
• the glue may optionally be replaced by any other similar fastening means known per se. Given the very thin thickness of the conductive layers, the adhesive is generally preferred.
• the bonding points of the diode conductors ensure a sufficient attachment of the diodes to the substrate to support subsequent assembly operations. It is possible, however, to further glue the body of the diode 6 directly on the substrate. If an adhesive of this type is applied, it is preferably non-conductive so as not to risk disturbing the electrical circuit. As an indication, the diodes can be
• FIGS. 3a and 3b show another method of assembly according to the invention in which the supply circuit of the diodes is disposed on a sheet 14 subsequently incorporated into the laminated assembly.
• Sheets of this type are used for supporting layers intended for example for the protection against infra-red in glazing, particularly motor vehicles.
• the material used most often for these sheets is both resistant and very thin. It is most commonly polyterephthalate ethylene glycol (PET).
• the intermediate sheet 3 and the sheet leaving the electrical supply circuit are arranged separately.
• the PET-type sheets which do not adhere to the glass by themselves, are usually introduced between two interlayers.
• the additional sheet 15 which is advantageously of the same constituent as the sheet 3, is arranged to sandwich the sheet 14 thus ensuring good adhesion to the two sheets 1 and 2.
• PVB interlayer sheets make it advantageous to use only one sheet in which the diodes are inserted. If a PET-type backing sheet is used, as in FIG. 3, which sheet is not likely to adhere alone to the glass sheet 2, it is possible to coat one side of either the glass sheet or the sheet 14, a thin film of adhesive 16. In Figure 4 the adhesive is shown applied to the glass sheet.
• the adhesive may be thermoplastic in nature so that its activation is obtained at the time of assembly of the different sheets.
• the embodiment of the invention presented in FIG. 5 differs from the previous ones in that two conductive layers constituting the two diode supply poles are supported by two distinct elements.
• the conductive layers 17 and 18 are arranged on each of the glass sheets 1 and 2.
• the conductors of the diodes being placed on both sides. other of the leaf. Still in this configuration it goes without saying that the fixing of the conductors of the diodes can not be performed before assembly. For this reason it is necessary to ensure the necessary contacts either during the assembly itself or by a subsequent operation.
• the assembly according to the invention comprising the formation by calendering, it is possible due to the pressure exerted on these conductors taken between the conductive layer and the face of the intermediate sheet to ensure sufficient contact. Nevertheless it is also possible, for example, to coat the conductors of the diodes with a conductive paste melting at the temperature of the assembly so that the "bonding" takes place at the time of assembly.
• the process comprises, after fixing the diodes on the supply circuit carried by the sheet 2 as just said, the application of an intermediate sheet 3 of thickness e sufficient to incorporate the diodes 6, and then the implementation place the second sheet 1.
• the sheets 1 and 2 are advantageously those from the glass production lines. These sheets can have dimensions of the order of 3x6m.
• the assembly methods comprising a degassing of the sheets by means of bags or vacuum rings, means traditionally used for the production of laminated automotive glazing and which are recommended in the earlier document, cited above, can not be conveniently implemented. It is necessary to proceed according to the degassing techniques by calendering.
• the set of superposed sheets 8 is placed on a conveyor and sent to a furnace 9 for temperature heating, improving the malleability of the interlayer sheet and increasing its ability to adhere to the glass sheets.
• the temperature is advantageously of the order of 40 to 70 ° C.
• the sheets thus heated are subjected to degassing by passing through a shell 10 schematically by two rollers.
• the pressure exerted on the calendering is advantageously of the order of 2 to 10 bar, and preferably of 3 to 8 bar.
• Calendering by compressing the sheets causes the diodes to penetrate into the interlayer sheet which is applied to the conductive layer 4 on the one hand, and
• the good enveloping of the diodes by the material of the interlayer sheet depends on the plasticity of this material. It also depends on the outer shape of the diodes. These shapes can vary significantly depending in particular on the dimensions of the diodes and the plasticity of the material of the interlayer. If the latter is more resistant to the penetration of the diodes it may be preferable to avoid efforts that may deteriorate the fixing of diodes to develop housing in the intermediate sheet. It is also possible alternatively to give the face of the diode which is pressed in the material of the spacer an incisive shape, for example a wedge shape.
• the operation is renewed.
• the leaves pass into a second oven 11 raising the temperature between about 55 and 70 0 C and undergo a second calendering at 12.
• the homogenization of the assembly and the obtaining of the transparency are then completed by passage to the autoclave 13 at higher temperature and under pressure.
• the bearing temperature in the autoclave is of the order of 120 to 150 ° C., and is maintained between 20 and 60 minutes.
• the pressure is between 8 and 15 bar.
• the assembly mode described above which comprises two calendering operations, may be limited to passage in a single oven.
• the first calendering which leads to keeping the sheets in position relative to one another, is carried out at ambient temperature.
• the passage in the single oven is performed at temperatures that do not seal the edges of the leaves to allow a good degassing. This temperature is in the range from 55 to 70 0 C. The sealing of the edges occurs accordingly at later stage in the autoclave.
• PVB interlayer sheets Different thicknesses of PVB interlayer sheets are used to determine the conditions necessary to obtain good incorporation of the diodes.
• the thicknesses in question are obtained by superposition of PVB sheets 0.38 mm thick. (0.76, 1.14, 1.52 ... mm).
• the conductive circuit is made by laser ablation forming insulating grooves of 0.15 mm wide between the conductive zones.
• the diodes used are sold under the name Osram type LWL283. The dimensions of the diodes are 1.7x0.8mm for different thicknesses: 0.6mm, 0.8mm and 1.2mm.
• the conductors of the diodes are glued to the conductive layer by means of a glue that is also conductive.
• the diodes are arranged in a regular mesh, 5 cm apart.
• the assembly performed as indicated above, leads to a product in which the diodes are indeed well incorporated in the sheet without intervening bubble for the thicknesses of PVB greater than the thicknesses of the diodes.
• the incorporation of the diodes is carried out without difficulty and under the conditions which are generally those used to form laminated glazings.
• the presence of the diodes does not significantly affect the conditions necessary for this assembly.
• the diodes and their fasteners are resistant to the pressures exerted during calendering in particular.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Optics & Photonics (AREA)
• Mechanical Engineering (AREA)
• Laminated Bodies (AREA)
• Led Device Packages (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

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• 2006
  • 2006-11-20 CN CNA2006800512431A patent/CN101365582A/zh active Pending
  • 2006-11-20 WO PCT/EP2006/068648 patent/WO2007057454A1/fr active Application Filing
  • 2006-11-20 JP JP2008541716A patent/JP2009516924A/ja not_active Withdrawn
  • 2006-11-20 EP EP06830044A patent/EP1954489A1/de not_active Withdrawn
  • 2006-11-20 EA EA200801387A patent/EA200801387A1/ru unknown
  • 2006-11-20 KR KR1020087015007A patent/KR20080079655A/ko not_active Application Discontinuation

Non-Patent Citations (1)

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