Organic light emitting diode lighting systems
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H05B-037/02
H01L-051/50
H01L-027/32
출원번호
US-0622953
(2012-09-19)
등록번호
US-8836221
(2014-09-16)
발명자
/ 주소
Storch, Mark L.
Mathai, Mathew K.
Thompson, Glenn
Greenberg, Joseph
출원인 / 주소
Solvay USA, Inc.
대리인 / 주소
The Marbury Law Group, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
58
초록▼
A lighting system includes a plurality of organic light emitting diode (OLED) devices. By selecting the plurality of OLED devices, or by selectively controlling the plurality of OLED devices, the color characteristics of the lighting system can be tuned. The lifetime of the lighting system can be im
A lighting system includes a plurality of organic light emitting diode (OLED) devices. By selecting the plurality of OLED devices, or by selectively controlling the plurality of OLED devices, the color characteristics of the lighting system can be tuned. The lifetime of the lighting system can be improved.
대표청구항▼
1. A lighting system comprising: a plurality of organic light emitting diode (OLED) devices,wherein each of the plurality of OLED devices has an active region,wherein at least some of the OLED devices have active regions of different sizes, andwherein the sizes are such that the OLED devices having
1. A lighting system comprising: a plurality of organic light emitting diode (OLED) devices,wherein each of the plurality of OLED devices has an active region,wherein at least some of the OLED devices have active regions of different sizes, andwherein the sizes are such that the OLED devices having active regions of different sizes have substantially matching lifetimes. 2. The lighting system of claim 1, wherein the plurality of OLED devices include a first type of OLED devices each having an active region of a first size and a first expected lifetime, and a second type of OLED devices each having an active region of a second size and a second expected lifetime, wherein a ratio of the first size to the second size is approximately proportional to a ratio of the second expected lifetime to the first expected lifetime. 3. The lighting system of claim 2, wherein the plurality of OLED devices include a first plurality of OLED devices having active regions configured to emit substantially red light, a second plurality of OLED devices having active regions configured to emit substantially green light, and a third plurality of OLED devices having active regions configured to emit substantially blue light, and wherein at least some of the third plurality of active regions have increased sizes and correspondingly reduced current densities as compared with the first plurality and the second plurality of active regions. 4. The lighting system of claim 2, wherein at least one of the plurality of OLED device comprises: at least one coupler configured to electrically couple the OLED device to a power supply; andan encapsulation that isolates the OLED device from an ambient environment. 5. The lighting system of claim 2, wherein the first type of OLED devices are configured to be driven at a first current density, and the second type of OLED devices are configured to be driven at a second current density, and wherein a ratio of the first current density to the second current density is approximately proportional to a ratio of the second size to the first size thereby substantially matching actual lifetimes of the first type of OLED devices and the second type of OLED devices. 6. The lighting system of claim 2, further comprising a controller configured to drive the first type of OLED devices at a first current density, and configured to drive the second type of OLED devices at a second current density. 7. The lighting system of claim 6, wherein a ratio of the first current density to the second current density is approximately proportional to a ratio of the second size to the first size. 8. The lighting system of claim 2, wherein the OLED devices of the first type comprise OLED devices of a first color, and the OLED devices of the second type comprise OLED devices of a second color. 9. The lighting system of claim 8, wherein the OLED devices of the first type are blue OLED devices, and the OLED devices of the second type are at least one of red OLED devices and green OLED devices. 10. The lighting system of claim 1, wherein at least some of the plurality of OLED devices are vertically stacked. 11. The lighting system of claim 1, wherein at least some of the plurality of OLED devices are configured as edge-emitting OLED devices. 12. The lighting system of claim 1, wherein at least some of the plurality of OLED devices are vertically stacked, and wherein at least some of the plurality of OLED devices are substantially transparent. 13. The lighting system of claim 1, further comprising a mount, wherein at least some of the plurality of OLED devices are configured to be removably coupled to the mount. 14. A method comprising: selecting a plurality of organic light emitting diode (OLED) devices to be used in a lighting system,wherein each of the plurality of OLED devices has an active region,wherein at least some of the OLED devices have active regions of different sizes,wherein the different sizes are selected such that light emitted from the lighting system has desired color characteristics and that the OLED devices having active regions of different sizes have substantially matching lifetimes. 15. The method of claim 14, wherein the plurality of OLED devices include a first type of OLED devices each having an active region of a first size and a first expected lifetime, and a second type of OLED devices each having an active region of a second size and a second expected lifetime, andwherein the OLED devices are selected such that a ratio of the first size to the second size is approximately proportional to a ratio of the second expected lifetime to the first expected lifetime. 16. The method of claim 15, wherein the plurality of OLED devices include a first plurality of OLED devices having active regions configured to emit substantially red light, a second plurality of OLED devices having active regions configured to emit substantially green light, and a third plurality of OLED devices having active regions configured to emit substantially blue light, andwherein the OLED devices are selected such that at least some of the third plurality of active regions have increased sizes and correspondingly reduced current densities as compared with the first plurality and the second plurality of active regions. 17. The method of claim 15, wherein at least one of the plurality of OLED device comprises: at least one coupler configured to electrically couple the OLED device to a power supply; andan encapsulation that isolates the OLED device from an ambient environment. 18. The method of claim 15, wherein the first type of OLED devices are configured to be driven at a first current density, and the second type of OLED devices are configured to be driven at a second current density, and wherein a ratio of the first current density to the second current density is approximately proportional to a ratio of the second size to the first size. 19. The method of claim 15, further comprising providing a controller configured to drive the first type of OLED devices at a first current density, and configured to drive the second type of OLED devices at a second current density. 20. The method of claim 19, wherein a ratio of the first current density to the second current density is approximately proportional to a ratio of the second size to the first size. 21. The method of claim 15, wherein the OLED devices of the first type comprise OLED devices of a first color, and the OLED devices of the second type comprise OLED devices of a second color. 22. The method of claim 21, wherein the OLED devices of the first type are blue OLED devices, and the OLED devices of the second type are at least one of red OLED devices and green OLED devices. 23. The method of claim 14, further comprising stacking at least some of the plurality of OLED devices in a vertical stack. 24. The method of claim 14, wherein at least some of the plurality of OLED devices are configured as edge-emitting OLED devices. 25. The method of claim 14, further comprising stacking at least some of the plurality of OLED devices in a vertical stack, wherein at least some of the plurality of OLED devices are substantially transparent. 26. The method of claim 14, further comprising coupling at least some of the plurality of OLED devices to a mount, wherein the at least some of the plurality of OLED devices are configured to be removably coupled to the mount. 27. A device comprising: a plurality of organic light emitting diode (OLED) devices,wherein each of the plurality of OLED devices has an active region,wherein at least some of the OLED devices have active regions of different sizes, andwherein the sizes are such that the OLED devices having active regions of different sizes have substantially matching lifetimes.
Adams, Jurgen; Wolf, Jurgen, Electromechanical device for mounting an electronic assembly on a mounting rack, in particular for mounting a display instrument recessed in a dashboard.
Borner Herbert Friedrich,DEX ; Busselt Wolfgang,DEX ; Justel Thomas,DEX ; Nikol Hans,DEX ; Ronda Cornelis R.,DEX, LED lighting system for producing white light.
Begemann Simon H. A.,NLX ; Tenner Ariadne D.,NLX ; Van Den Beld Gerrit J.,NLX, Lighting system for controlling the color temperature of artificial light under the influence of the daylight level.
Tanghe,Gino; Thielemans,Robbie; Dedene,Nele, Method and system for measuring and controlling an OLED display element for improved lifetime and light output.
Krummacher, Benjamin C.; Mathai, Mathew; Choong, Vi En; Choulis, Stelios A., Method to generate high efficient devices which emit high quality light for illumination.
Ducharme,Alfred D.; Morgan,Frederick M.; Lys,Ihor A.; Dowling,Kevin J.; Mueller,George G., Methods and apparatus for generating prescribed spectrums of light.
Ducharme,Alfred D.; Morgan,Frederick M.; Lys,Ihor A.; Dowling,Kevin J.; Mueller,George G., Systems and methods for generating and modulating illumination conditions.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.