# US 11,112,082 B2 · Vehicular LED lamp for freezing preventing using transparent conductive oxide > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,112,082 B2 - Document ID: US11112082B2 - Status: Granted - Kind: B2 - Application number: 16/533,496 - Filed: 2019-08-06 - Published: 2020-04-16 - Granted: 2021-09-07 - Earliest claimed: 2018-10-10 - Assignees: Creslite Inc - Applicants: Dong Sun Kim - Inventors: Dong Sun Kim - Web page: https://patentgrep.com/patent/US11112082B2 ## CPC - F21S 45/60: Heating of lighting devices, e.g. for demisting - C03C 17/3417: {all coatings being oxide coatings} - F21K 9/238: Arrangement or mounting of circuit elements integrated in the light source - F21S 41/141: Light emitting diodes [LED] - F21S 41/32: Optical layout thereof - F21S 45/47: Passive cooling, e.g. using fins, thermal conductive elements or openings - H05B 3/84: Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields - H05K 1/181: associated with surface mounted components - C03C 2217/948: Layers comprising indium tin oxide [ITO] - C03C 2218/32: After-treatment - H05K 2201/10106: Light emitting diode [LED] - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - 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 - 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 - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract The present invention relates to a vehicular LED lamp for freezing prevention using transparent conductive oxide (ITO). The vehicular LED lamp includes: a housing made of a heat dissipation material, and opened at a front side thereof, the housing including an outer shell formed to protect internal constituent elements; a headlamp LED PCB unit including one or more LEDs configured to drive a headlamp to identify the position of a vehicle; and an ITO conductive heating member deposited on the inner surface of a head lens of the LED lamp, which is coupled to the housing, the head lens being formed by depositing a diffusion preventing layer on a substrate thereof, and depositing an ITO thin film on the diffusion preventing layer, followed by thermal treatment and crystallization, thereby improving the light-outputting efficiency of an LED chip and reducing the energy consumption of the LED lamp. ## Claims ### Claim 1 A vehicular LED lamp for freezing prevention using a transparent conductive oxide, comprising: a housing (110) made of a heat dissipation material, and opened at a front side thereof, the housing including an outer shell formed to protect internal constituent elements; a headlamp LED PCB unit (130) including one or more LEDs configured to drive a headlamp to identify the position of a vehicle, the headlamp LED PCB unit being disposed at one side of the inner upper portion of the housing in such a manner as to be fixedly supported by a PCB coupling member; and A conductive heating member deposited on the inner surface of a head lens (160) of the LED lamp, which is coupled to the housing (110), the head lens (160) being formed by depositing a diffusion preventing layer using inorganic oxide on a substrate thereof, and depositing an transparent conductive oxide thin film on the diffusion preventing layer, followed by thermal treatment and crystallization, so that the light-outputting efficiency of an LED chip can be improved and the energy consumption of the LED lamp can be reduced. ### Claim 2 A vehicular LED lamp for freezing prevention using a transparent conductive oxide, comprising: a housing (110) made of a heat dissipation material, and opened at a front side thereof, the housing including an outer shell formed to protect internal constituent elements; a headlamp LED PCB unit (130) including one or more LEDs configured to drive a headlamp to identify the position of a vehicle, the headlamp LED PCB unit being disposed at one side of the inner upper portion of the housing (110) in such a manner as to be fixedly supported by a PCB coupling member; and a transparent conductive oxide containing heating member (190) attached to the inner surface of a head lens (160) of the LED lamp, which is coupled to the housing (110), in the form of a film, so that the light-outputting efficiency of an LED chip can be improved and the energy consumption of the LED lamp can be reduced. ### Claim 3 (depends on 1, 2) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 1 or 2, further comprising: a sensor unit (170) having a structure being formed integrally or engaged with the headlamp LED PCB unit (130) at the inside of the housing (110), the sensor unit (170) being configured to sense the internal temperature of the housing (110); and a control unit (210) configured to determine whether to supply power to a transparent conductive oxide containing heating member based on the internal temperature of the housing (110), sensed by the sensor unit (170), through the control of power of a power supply unit (180). ### Claim 4 (depends on 3) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 3, wherein the control unit (210) controls an analysis unit (220) to compare the internal temperature of the housing (110), sensed by the sensor unit (170), with a preset temperature and analyze a result of the comparison, receives the analyzed result of the comparison from the analysis unit (220), and controls a transformer unit (230) to be driven to boost or drop a voltage to be applied to the heating member (190). ### Claim 5 (depends on 1, 2) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 1 or 2, further comprising: a reflector (140) disposed at the inside of the housing (110) and configured to reflect lighting light emitted from the LEDs of the headlamp LED PCB unit (130), wherein the reflector (140) comprises: a reflective plate (141) inserted into an internal) space portion and configured to receive lighting light emitted from the LEDs of the headlamp LED PCB unit (130), a frame unit (143) formed to extend protrudingly radially from a front end of the reflective plate (141) in such a manner as to be connected to a front end of the housing (110); a pair of opposed electrode guide grooves (145) recessedly formed on the central surfaces of a pair of opposed vertical portions of the frame unit (143); and a pair of opposed fastening terminals (147) connected to the LED PCB unit (130) by electric wires and inserted into the pair of opposed electrode guide grooves (145) so that when the head lens (160) and the housing (110) are securely fastened to each other by a bolt (149), an electrical conduction is established between the headlamp LED PCB unit (130) and the head lens (160). ### Claim 6 (depends on 5) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 5, wherein the reflective plate (141) is configured to allow the lighting light emitted from the LEDs of the headlamp LED PCB unit (130) to be reflected to the inner surface of the head lens (160), and to have a curved shape so as to condense and reflect the lighting light emitted from the LEDs of the headlamp LED PCB unit (130), the reflective plate (141) being accommodated in the internal space of the housing (110). ### Claim 7 (depends on 1, 2) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 1 or 2, further comprising: a PCB unit (120) including one or more LEDs and configured to be accommodated in the inner upper portion of the housing (110) to allow the light emitted from the LEDs to be irradiated in an upward or downward direction; and a support unit (150) including a pair of retaining protrusions (151) formed thereon so as to be engaged with the inside of the housing (110) to protect the PCB (120), and a pair of lighting lenses (153) formed on the outer surface thereof. ### Claim 8 (depends on 2) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 2, wherein the transparent conductive oxide containing heating member (190) comprises a substrate film (191), an optical adjustment layer (193) laminated on the substrate film (191) and including a low refractive index layer, and a coating layer formed on the optical adjustment layer and coated with a resin coating solution containing a fluorine additive. ### Claim 9 A vehicular LED lamp for freezing prevention using a transparent conductive oxide, comprising: a housing (110) made of a heat dissipation material, and opened at a front side thereof, the housing including an outer shell formed to protect internal constituent elements; a headlamp LED PCB unit (130) including one or more LEDs attached to a headlamp to identify the position of a vehicle, the headlamp LED PCB unit being disposed at one side of the inner upper portion of the housing in such a manner as to be fixedly supported by a PCB coupling member; and A conductive heating member deposited on the inner surface of a head lens (160) of the LED lamp, which is coupled to the housing (110), the head lens (160) being formed by depositing a diffusion preventing layer using inorganic oxide on a substrate thereof, and depositing an transparent conductive oxide thin film on the diffusion preventing layer, followed by thermal treatment and crystallization, so that the light-outputting efficiency of an LED chip can be improved and the energy consumption of the LED lamp can be reduced. ### Claim 10 (depends on 9) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 9, wherein the conductive heating member is a transparent conductive oxide containing heating member (190) attached to the inner surface of a head lens (160) of the LED lamp. ### Claim 11 (depends on 10) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 10, further comprising: a PCB unit (120) including one or more LEDs and configured to be accommodated in the inner upper portion of the housing (110) to allow the light emitted from the LEDs to be irradiated in an upward or downward direction; and a support unit (150) including a pair of retaining protrusions (151) formed thereon so as to be engaged with the inside of the housing (110) to protect the PCB (120), and a pair of lighting lenses (153) formed on the outer surface thereof. ### Claim 12 (depends on 9) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 9, further comprising: a sensor unit (170) having a structure being formed integrally or engaged with the headlamp LED PCB unit (130) at the inside of the housing (110), the sensor unit (170) sensing the internal temperature of the housing (110); and a control unit (210) determining the supply of power to a transparent conductive oxide containing heating member based on the internal temperature of the housing (110), sensed by the sensor unit (170), through the control of power of a power supply unit (180). ### Claim 13 (depends on 9) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 9, further comprising: a reflector (140) disposed at the inside of the housing (110) reflecting light emitted from the LEDs of the headlamp LED PCB unit (130), wherein the reflector (140) comprises: a reflective plate (141) inserted into an internal space portion and receiving lighting light emitted from the LEDs of the headlamp LED PCB unit (130), a frame unit (143) formed to extend protrudingly radially from a front end of the reflective plate (141) in such a manner as to be connected to a front end of the housing (110); a pair of opposed electrode guide grooves (145) recessedly formed on the central surfaces of a pair of opposed vertical portions of the frame unit (143); and a pair of opposed fastening terminals (147) connected to the LED PCB unit (130) by electric wires and inserted into the pair of opposed electrode guide grooves (145) so that when the head lens (160) and the housing (110) are securely fastened to each other by a bolt (149), an electrical conduction is established between the headlamp LED PCB unit (130) and the head lens (160). ### Claim 14 (depends on 9) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 9, wherein the reflective plate (141) allows the light emitted from the LEDs of the headlamp LED PCB unit (130) to be reflected to the inner surface of the head lens (160), and to have a curved shape so as to condense and reflect the lighting light emitted from the LEDs of the headlamp LED PCB unit (130), the reflective plate (141) being accommodated in the internal space of the housing (110). ### Claim 15 (depends on 14) The vehicular LED lamp for freezing prevention using a transparent conductive oxide according to claim 14, wherein the transparent conductive oxide containing heating member (190) comprises a substrate film (191), an optical adjustment layer (193) laminated on the substrate film (191) and including a low refractive index layer, and a coating layer formed on the optical adjustment layer and coated with a resin coating solution containing a fluorine additive.