# US 7,745,838 B2 · Glazing comprising electronics elements > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,745,838 B2 - Document ID: US7745838B2 - Status: Granted - Kind: B2 - Application number: 10/541,672 - Filed: 2004-01-08 - Published: 2006-12-07 - Granted: 2010-06-29 - Earliest claimed: 2003-01-10 - Assignees: Agc Glass Europe - Inventors: Hugues Lefevre - Web page: https://patentgrep.com/patent/US7745838B2 ## CPC - B32B 17/10018: {comprising only one glass sheet} - B32B 17/10036: {comprising two outer glass sheets} - B32B 17/10174: {Coatings of a metallic or dielectric material on a constituent layer of glass or polymer} - B32B 17/10376: {Laminated safety glass or glazing containing metal wires} - B32B 17/10541: {comprising a light source or a light guide} - B32B 17/10761: {containing vinyl acetal} - B32B 27/36: comprising polyesters - B32B 27/365: {comprising polycarbonates} - B60Q 3/208: Sun roofs; Windows - C03C 17/006: {with materials of composite character} - C03C 17/23: Oxides (C03C17/02 takes precedence) - H01Q 1/1271: {for mounting on windscreens} - H05B 45/40: Details of LED load circuits - B32B 2329/06: PVB, i.e. polyinylbutyral - B32B 2369/00: Polycarbonates - B32B 2605/00: Vehicles - B32B 2605/003: Interior finishings - C03C 2217/231: In2O3/SnO2 - F21Y 2109/00: Light sources with light-generating elements disposed on transparent or translucent supports or substrates - H05K 1/02: Details - H05K 1/0306: {Inorganic insulating substrates, e.g. ceramic, glass} - H05K 2201/0108: Transparent - H05K 2201/10106: Light emitting diode [LED] - Y10T 428/26: Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL - C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The invention consists of inserting electronic components into a glazing, in particular a laminated glazing, in order to create new features, in particular for automotive applications, windscreen, rear window or side windows. The inserted electronic components can be optoelectronic components such as light-emitting diodes (LEDs) providing a lighting function for the glazing, e.g. interior lighting of an automobile. The electrical connections are provided by means of a conductive layer so that they are virtually invisible. ## Claims ### Claim 1 Laminated glazing comprising: two glass sheets; one or more thermoplastic interlayers; light-emitting diodes (LEDs) inserted between the two glass sheets; and a connecting circuit formed from at least one conductive layer deposited on one face of the glass sheets or of the thermoplastic interlayers, the conductive layer being divided in at least 2 distinct areas, each area being bound to an electrode. ### Claim 2 (depends on 1) Laminated glazing according to claim 1, wherein the conductive layer has a thickness in the range of between 0.02 and 0.5 μm. ### Claim 3 (depends on 2) Laminated glazing according to claim 2, wherein the conductive layer has a resistance in the range of between 2 and 80 Ω/sq. ### Claim 4 (depends on 1) Laminated glazing according to claim 1, wherein the conductive layer is applied on the transparent substrate and zones have been insulated from the rest of the layer by narrow insulating bands. ### Claim 5 (depends on 4) Laminated glazing according to claim 4, wherein the insulating bands have a width in the range of between 0.01 and 3 mm. ### Claim 6 (depends on 1) Laminated glazing according to claim 1, wherein the LEDs and any associated casing have a thickness less than or equal to 3 mm. ### Claim 7 (depends on 1) Laminated glazing according to claim 1, wherein the LEDs comprise several semiconductor chips in a casing. ### Claim 8 (depends on 7) Laminated glazing according to claim 7, wherein the casing is dimensioned such that its length and/or a width are at least 10-times larger than its thickness. ### Claim 9 (depends on 7) Laminated glazing according to claim 7, wherein the casing has a length and/or a width in the range between 5 and 100 mm. ### Claim 10 (depends on 1) Laminated glazing according to claim 1, wherein a switch actuating the power supply of the LEDs is formed by a zone of the conductive layer insulated from the rest of the conductor layer by narrow bands. ### Claim 11 (depends on 1) Laminated glazing according to claim 1, wherein the LEDs are inserted in at least one of said one or more thermoplastic interlayers during the production of the laminated glazing. ### Claim 12 (depends on 1) Laminated glazing according to claim 1, wherein the conductive layer has a thickness in the range of between 0.2 and 0.4 μm. ### Claim 13 (depends on 2) Laminated glazing according to claim 2, wherein the conductive layer has a resistance in the range of between 10 and 80 Ω/sq. ### Claim 14 (depends on 12) Laminated glazing according to claim 12, wherein the conductive layer has a resistance in the range of between 12 and 20 Ω/sq. ### Claim 15 (depends on 4) Laminated glazing according to claim 4, wherein the insulating bands have a width in the range of between 0.05 and 1.5 mm. ### Claim 16 (depends on 4) Laminated glazing according to claim 4, wherein the insulating bands have a width in the range of between 0.1 and 0.8 mm. ### Claim 17 (depends on 1) Laminated glazing according to claim 1, wherein the LEDs and any associated casing have a thickness in the range of between 0.1 and 1.2 mm. ### Claim 18 (depends on 7) Laminated glazing according to claim 7, wherein the casing is dimensioned such that its length and/or a width are at least 20-times larger than its thickness. ### Claim 19 (depends on 7) Laminated glazing according to claim 7, wherein the casing is dimensioned such that its length and/or a width are at least 40-times larger than its thickness. ### Claim 20 (depends on 7) Laminated glazing according to claim 7, wherein the casing has a length and/or a width in the range between 15 and 75 mm. ### Claim 21 (depends on 7) Laminated glazing according to claim 7, wherein the casing has a length and/or a width in the range between 25 and 50 mm. ### Claim 22 (depends on 1) Laminated glazing according to claim 1, wherein the LEDs are substantially surrounded by said one or more thermoplastic interlayers. ### Claim 23 (depends on 7) Laminated glazing according to claim 7, wherein the casing is substantially surrounded by said one or more thermoplastic interlayers.