In various embodiments, lighting systems include an electrically insulating carrier having a plurality of conductive elements disposed thereon, a light-emitting array, and at least one power source. The light-emitting array is disposed over the carrier and includes a plurality of light-emitting stri
In various embodiments, lighting systems include an electrically insulating carrier having a plurality of conductive elements disposed thereon, a light-emitting array, and at least one power source. The light-emitting array is disposed over the carrier and includes a plurality of light-emitting strings, each light-emitting string comprising a plurality of electrically connected light-emitting diodes (LEDs). Each LED has at least two electrical contacts, and each electrical contact is electrically connected to a conductive element by a conductive adhesive and/or a solder. The power source provides power to the light-emitting strings.
대표청구항▼
1. A lighting system comprising: an electrically insulating carrier having a plurality of conductive elements disposed thereon;disposed over the carrier, a light-emitting array comprising a plurality of light-emitting strings electrically connected in parallel, each light-emitting string comprising
1. A lighting system comprising: an electrically insulating carrier having a plurality of conductive elements disposed thereon;disposed over the carrier, a light-emitting array comprising a plurality of light-emitting strings electrically connected in parallel, each light-emitting string comprising a plurality of electrically connected light-emitting diodes (LEDs), each LED having at least two electrical contacts, wherein each electrical contact is electrically connected to a conductive element by an electrical connection comprising at least one of a conductive adhesive or a solder;at least one power source for providing power to the light-emitting strings; andone or more cross connections each electrically connecting portions of two or more light-emitting strings, each electrically connected portion being disposed between a pair of LEDs. 2. The lighting system of claim 1, wherein at least one cross connection electrically connects together portions of all of the light-emitting strings. 3. The lighting system of claim 1, wherein (i) the one or more cross connections comprise a plurality of cross connections, and (ii) for one or more light-emitting strings, each different portion thereof disposed between a different pair of LEDs is electrically connected to a different cross connection. 4. The lighting system of claim 1, wherein (i) the one or more cross connections comprise a plurality of cross connections, and (ii) for each light-emitting string, each different portion thereof disposed between a different pair of LEDs is electrically connected to a different cross connection. 5. The lighting system of claim 1, wherein (i) the one or more cross connections comprise a plurality of cross connections, and (ii) the plurality of light-emitting strings and plurality of cross connections collectively form an interconnected grid of LEDs, such that (a) for each light-emitting string, an electrical connection to a different cross connection is disposed between each pair of LEDs, and (b) each cross connection is electrically connected to all of the light-emitting strings. 6. The system of claim 1, wherein the electrically insulating carrier comprises a polymeric material. 7. The system of claim 1, wherein the electrically insulating carrier is flexible. 8. The system of claim 1, further comprising a light-conversion material disposed in or over at least one of the LEDs, wherein the electrically insulating carrier is reflective to at least one of (i) a wavelength of light emitted by at least one of the LEDs or (ii) a wavelength of light emitted by the light-conversion material. 9. The system of claim 1, further comprising a light-conversion material disposed in or over at least one of the LEDs, wherein the electrically insulating carrier is substantially transparent to at least one of (i) a wavelength of light emitted by at least one of the LEDs or (ii) a wavelength of light emitted by the light-conversion material. 10. The system of claim 1, wherein at least one of the LEDs comprises a semiconductor material comprising at least one of silicon, SiC, GaAs, AlxInyGa1-x-yPzNtAs1-t-z, AlxInyGa1-x-yN, ZnO, or mixtures or compounds thereof. 11. The system of claim 1, wherein at least one of the LEDs emits UV, blue, or green light. 12. The system of claim 1, wherein at least one of the LEDs comprises a light-conversion material disposed therein or thereon, at least one of (i) light emitted from the light-conversion material or (ii) a mixture of light emitted from the at least one of the LEDs and the light-conversion material being white light. 13. The system of claim 1, further comprising, electrically connected to the plurality of light-emitting strings, electrical circuitry for selectively turning off various ones of the light-emitting strings, thereby dimming a light output of the light-emitting array, without altering a level of drive current supplied to the LEDs. 14. The system of claim 1, wherein: the light-emitting array comprises (i) a first group of one or more light-emitting strings, and (ii) a second group of one or more light-emitting strings different from the first group,activation of the first group and deactivation of the second group produces light having a first color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution, andactivation of the second group and deactivation of the first group produces light having a second color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution different from the first color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution. 15. The system of claim 1, wherein: the light-emitting array comprises a first group of one or more light-emitting strings and, associated with at least one of the LEDs of the first group, a first optical element of a first type,the light-emitting array comprises a second group, different from the first group, of one or more light-emitting strings and, associated with at least one of the LEDs of the second group, a second optical element of a second type different from the first type,activation of the first group and deactivation of the second group produces light having a first color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution, andactivation of the second group and deactivation of the first group produces light having a second color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution different from the first color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution. 16. The system of claim 1, wherein: the light-emitting array comprises a first group of one or more light-emitting strings and, associated with at least one of the LEDs of the first group, a first light-conversion material having a first optical characteristic,the light-emitting array comprises a second group, different from the first group, of one or more light-emitting strings and, associated with at least one of the LEDs of the second group, a second light-conversion material having a second optical characteristic different from the first optical characteristic,activation of the first group and deactivation of the second group produces light having a first color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution, andactivation of the second group and deactivation of the first group produces light having a second color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution different from the first color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution. 17. The system of claim 1, wherein at least one LED comprises a substrate that is substantially transparent to a wavelength of light emitted by the at least one LED. 18. The system of claim 1, wherein at least one LED comprises a light-conversion material disposed therein or thereon, the at least one LED comprising a substrate that is substantially transparent to at least one of (i) a wavelength of light emitted by at least one LED or (ii) a wavelength of light emitted by the light-conversion material. 19. The system of claim 1, wherein the plurality of light-emitting strings comprises (i) a first light-emitting string in which at least one LED comprises a light-conversion material, and (ii) a second light-emitting string, different from the first light-emitting string, in which at least one LED lacks a light-conversion material. 20. The system of claim 1, wherein the plurality of light-emitting strings comprises a first light-emitting string configured for emission of white light and a second light emitting string, different from the first light-emitting string, configured for emission of red light. 21. The system of claim 1, further comprising: a second electrically insulating carrier having a plurality of conductive elements disposed thereon; anddisposed over the second electrically insulating carrier, a light-emitting array comprising a plurality of light-emitting strings, each light-emitting string comprising a plurality of LEDs electrically connected in series,wherein (i) the strings on the electrically insulating carrier produce light having a first color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution, and (ii) the strings on the second electrically insulating carrier produce light having a second color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution different from the first color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution. 22. The system of claim 1, further comprising: a second electrically insulating carrier having a plurality of conductive elements disposed thereon; anddisposed over the second electrically insulating carrier, a light-emitting array comprising a plurality of light-emitting strings, each light-emitting string comprising a plurality of LEDs electrically connected in series,wherein (i) the strings on the electrically insulating carrier produce light having a first color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution, and (ii) the strings on the second electrically insulating carrier produce light having a second color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution substantially the same as the first color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution. 23. The system of claim 1, wherein (i) the plurality of conductive elements form a two-dimensional grid extending in first and second directions, (ii) conductive elements extending in the first direction electrically connect LEDs in series, and (iii) conductive elements extending in the second direction electrically interconnect conductive elements extending in the first direction. 24. The lighting system of claim 1, wherein the LEDs within each light-emitting string are electrically connected in series. 25. The lighting system of claim 24, wherein (i) each light-emitting string contains the same number of LEDs, (ii) the one or more cross connections comprise a plurality of cross connections, and (iii) for each light-emitting string, each different portion thereof disposed between each different pair of LEDs is electrically connected to a different cross connection. 26. The system of claim 1, wherein at least one LED comprises a packaged LED. 27. The system of claim 26, wherein the packaged LED comprises a light-conversion material. 28. The system of claim 27, wherein the light-conversion material comprises a phosphor. 29. The system of claim 1, wherein at least one LED comprises a bare-die LED. 30. The system of claim 29, further comprising a light-conversion material disposed over at least a portion of the bare-die LED. 31. The system of claim 30, wherein the light-conversion material comprises a phosphor. 32. The system of claim 1, further comprising, disposed on the electrically insulating carrier, circuitry for controlling current supplied to the LEDs. 33. The system of claim 32, wherein the circuitry comprises one or more resistors. 34. The system of claim 32, wherein the circuitry comprises one or more transistors. 35. The system of claim 32, wherein the circuitry comprises at least one resistor and at least one transistor. 36. The system of claim 32, wherein the circuitry comprises at least one integrated circuit. 37. The system of claim 1, further comprising, disposed on the electrically insulating carrier, a plurality of circuits each for controlling current supplied to one of the light-emitting strings. 38. The system of claim 37, wherein each circuit comprises one or more resistors. 39. The system of claim 37, wherein each circuit comprises one or more transistors. 40. The system of claim 37, wherein each circuit comprises at least one resistor and at least one transistor. 41. The system of claim 1, further comprising an array of optical elements each associated with at least one LED, the array of optical elements at least one of focusing or shaping light from the LEDs to a desired illumination pattern. 42. The system of claim 41, wherein each optical element is optically coupled to at least one LED with no interface to air there between. 43. The system of claim 1, wherein at least one first light-emitting string emits light having a color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution different from a color, color temperature, intensity, efficiency, color rendering index, or spectral light distribution of at least one second light-emitting string. 44. The system of claim 43, wherein the LEDs of the at least one first light-emitting string are substantially identical to the LEDs of the at least one second light-emitting string. 45. The system of claim 43, wherein at least one of the LEDs of the at least one first light-emitting string is associated with a first light conversion material having a first optical characteristic, and at least one of the LEDs of the at least one second light-emitting string is associated with a second light conversion material having a second optical characteristic different from the first optical characteristic. 46. The system of claim 43, wherein at least one of the LEDs of the at least one first light-emitting string is associated with an optical element of a first type, and at least of the LED's of the at least one second light-emitting sting is associated with an optical element of a second type different from the first type.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (101)
Ray, William Johnstone; Lowenthal, Mark David, Addressable or static light emitting or electronic apparatus.
Basin, Grigoriy; Martin, Paul S.; West, Robert Scott; Morita, Yasumasa; Heemstra, Tewe, Blue LED with phosphor layer for producing white light and different phosphor in outer lens for reducing color temperature.
Haines, Joshua Paul; Belafonte, Stephen Frazer; Willis, Charles Henry Hurst; Rixham, Nicholas Andrew, Illumination apparatus utilizing light emitting diodes.
Henson,Gordon D.; DeBaun,Barbara A.; Meis,Michael A.; Schultz,John C.; Simbal,John J.; Davis,Ronald D., Illumination system using a plurality of light sources.
Basin, Grigoriy; Haque, Ashim Shatil; Chen, Ching-hui; West, Robert Scott; Martin, Paul, LED with particles in encapsulant for increased light extraction and non-yellow off-state color.
Mueller, Gerd O.; Mueller-Mach, Regina; Basin, Grigoriy; West, Robert Scott; Martin, Paul S.; Lim, Tze-Sen; Eberle, Stefan, LED with phosphor tile and overmolded phosphor in lens.
Regina B. Mueller-Mach ; Gerd O. Mueller ; George M. Craford, Light emitting diode (LED) device that produces white light by performing phosphor conversion on all of the primary radiation emitted by the light emitting structure of the LED device.
Kim, Gun-Woo; Park, Jae-Byung; Cho, Don-Chan; Park, Hae-Il; Byun, Jin-Seob; Shin, Jung-Han; Yoon, Seon-Tae; Hong, Sung-Jin, Light emitting diode, backlight assembly having the same and method thereof.
Kang, Eun-Jeong; Kang, Seok-Won; Lee, Young-Keun; Shin, Ho-Sik, Light source module, method of fabricating the same, and display device having the light source module.
Smith Elmer L. (Scottsdale AZ) McLarty Gerold E. (Phoenix AZ) Smith Geraldine L. (Scottsdale AZ), Light-emitting diode assemblies and systems therefore.
Durand David (Providence RI) Wong Chon M. (Lincoln RI) Iannetta ; Jr. Roger A. (Warwick RI), Method for connecting a die to electrically conductive traces on a flexible lead-frame.
Horton Raymond Robert ; Lanzetta Alphonso Philip ; Milewski Joseph Maryan ; Mok Lawrence S. ; Montoye Robert Kevin ; Shaukatulla Hussain, Method of fabricating an electronic package with interconnected chips.
Fujisawa, Atsushi; Konno, Takafumi; Ohsaka, Shingo; Haruta, Ryo; Ichitani, Masahiro, Method of manufacturing a resin encapsulated semiconductor device to provide a vent hole in a base substrate.
Basin,Grigoriy; West,Robert Scott; Martin,Paul S.; Harbers,Gerard; Smits,Willem H.; Hendriks,Robert F. M.; Konijn,Frans H., Overmolded lens over LED die.
Sun, Joseph; Cheng, Kuang-Chih; Chen, Ming-Chieh; Lee, Kevin; Pan, Jui-Hsiang, Package of a semiconductor device with a flexible wiring substrate and method for the same.
Kashiwagi, Tsutomu; Shiobara, Toshio, Phosphor-containing adhesive silicone composition, composition sheet formed of the composition, and method of producing light emitting device using the sheet.
Collins, III, William David; Krames, Michael R.; Verhoeckx, Godefridus Johannes; van Leth, Nicolaas Joseph Martin, Phosphor-converted light emitting device.
Durocher, Kevin Matthew; Balch, Ernest Wayne; Krishnamurthy, Vikram B.; Saia, Richard Joseph; Cole, Herbert Stanley; Kolc, Ronald Frank, Plastic packaging of LED arrays.
Durocher, Kevin Matthew; Balch, Ernest Wayne; Krishnamurthy, Vikram B.; Saia, Richard Joseph; Cole, Herbert Stanley; Kolc, Ronald Frank, Plastic packaging of LED arrays.
Collins, III, William David; Krames, Michael R.; Verhoeckx, Godefridus Johannes; Martin van Leth, Nicolaas Joseph, Using electrophoresis to produce a conformally coated phosphor-converted light emitting semiconductor.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.