Organic lighting device and lighting equipment

• US 10,267,507 B2
• Filed: 10/26/2017
• Issued: 04/23/2019
• Est. Priority Date: 09/29/2006
• Status: Active Grant

• Current Assignee: Pictiva Displays International Limited (f/k/a Dolya Holdco 5 Limited) (Key Patent Innovations Limited)
• Original Assignee: OSRAM OLED GMBH (Ams-Osram AG)
• Inventors: Diekmann, Karsten, Heuser, Karsten, Klein, Markus, Lang, Dieter, Lechermann, Georg, Reithmeier, Michael, Plumeyer, Carsten, Chipalkatti, Makarand H., Custodis, Udo, Seymour, Diane, Poplavskyy, Dmytro, Weitzel, Reinhard
• Primary Examiner(s): Bowman, Mary Ellen
• Application Number:
  US15/794,720
• Publication Number:
  US 20180045401A1
• Time in Patent Office: 544 Days
• CPC Class Codes: F21S 10/02 changing colors F21S10/002 - F21S10/007, F21S10/04 take precedence
• CPC Class Codes: F21S 2/005 of modular construction
• CPC Class Codes: F21S 6/00 Lighting devices intended to be free-standing F21S9/00, F21S10/00, F21S13/12 take precedence lighting devices specially adapted to be transported from place to place, e.g. lighting devices carried on wheeled supports F21L; details of supports for lighting devices F21V21/00
• CPC Class Codes: F21S 6/002 Table lamps, e.g. for ambient lighting
• CPC Class Codes: F21S 6/004 with a lamp housing in direct contact with the floor or ground
• CPC Class Codes: F21S 8/033 the surface being a wall or like vertical structure, e.g. building facade
• CPC Class Codes: F21S 8/04 intended only for mounting on a ceiling or the like overhead structures F21S8/02 takes precedence; details of ceiling bases F21V21/03
• CPC Class Codes: F21V 1/00 Shades for light sources , i.e. lampshades for table, floor, wall or ceiling lamps
• CPC Class Codes: F21V 21/35 with direct electrical contact between the supporting element and electric conductors running along the guiding element
• CPC Class Codes: F21V 23/003 the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 33/0008 Clothing or clothing accessories, e.g. scarfs, gloves or belts
• CPC Class Codes: F21V 33/0012 Furniture hospital beds F21V33/0072
• CPC Class Codes: F21V 33/0016 Furnishing for windows and doors sunshades F21V33/006
• CPC Class Codes: F21V 33/006 General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
• CPC Class Codes: F21V 9/08 for producing coloured light, e.g. monochromatic; for reducing intensity of light with provision for controlling the colour F21V9/40
• CPC Class Codes: F21W 2131/301 for furniture
• CPC Class Codes: F21W 2131/302 for mirrors
• CPC Class Codes: F21Y 2101/00 Point-like light sources
• CPC Class Codes: F21Y 2105/00 Planar light sources
• CPC Class Codes: F21Y 2113/20 : of different form
• CPC Class Codes: F21Y 2115/15 : Organic light-emitting diodes [OLED]
• CPC Class Codes: G09F 13/22 : electroluminescent electroluminescent light sources per se H05B33/00
• CPC Class Codes: H01L 2224/2612 : Auxiliary members for layer connectors, e.g. spacers
• CPC Class Codes: H01L 2224/32225 : the item being non-metallic, e.g. insulating substrate with or without metallisation
• CPC Class Codes: H01L 2224/48091 : Arched
• CPC Class Codes: H01L 2224/48227 : connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 2224/48464 : the other connecting portion not on the bonding area also being a ball bond, i.e. ball-to-ball
• CPC Class Codes: H01L 2224/73265 : Layer and wire connectors
• CPC Class Codes: H01L 2924/00 : Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/00014 : the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/12044 : OLED
• CPC Class Codes: H01L 2924/16152 : Cap comprising a cavity for hosting the device, e.g. U-shaped cap
• CPC Class Codes: H01L 2924/3025 : Electromagnetic shielding
• CPC Class Codes: H05B 45/60 : Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
• CPC Class Codes: H10K 2102/103 : comprising indium oxides, e.g. ITO
• CPC Class Codes: H10K 2102/3031 : Two-side emission, e.g. transparent OLEDs [TOLED]
• CPC Class Codes: H10K 2102/311 : Flexible OLED
• CPC Class Codes: H10K 30/88 : Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 50/125 : specially adapted for multicolour light emission, e.g. for emitting white light
• CPC Class Codes: H10K 50/13 : comprising stacked EL layers within one EL unit
• CPC Class Codes: H10K 50/155 : comprising dopants
• CPC Class Codes: H10K 50/165 : comprising dopants
• CPC Class Codes: H10K 50/80 : Constructional details
• CPC Class Codes: H10K 50/805 : Electrodes
• CPC Class Codes: H10K 50/813 : characterised by their shape
• CPC Class Codes: H10K 50/814 : combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
• CPC Class Codes: H10K 50/816 : Multilayers, e.g. transparent multilayers
• CPC Class Codes: H10K 50/822 : characterised by their shape
• CPC Class Codes: H10K 50/828 : Transparent cathodes, e.g. comprising thin metal layers
• CPC Class Codes: H10K 50/84 : Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 50/841 : Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/8426 : Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 50/8428 : Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
• CPC Class Codes: H10K 50/844 : Encapsulations
• CPC Class Codes: H10K 50/8445 : multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
• CPC Class Codes: H10K 50/846 : comprising getter material or desiccants
• CPC Class Codes: H10K 50/854 : comprising scattering means
• CPC Class Codes: H10K 50/856 : comprising reflective means
• CPC Class Codes: H10K 59/00 : Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
• CPC Class Codes: H10K 59/10 : OLED displays
• CPC Class Codes: H10K 59/221 : Static displays, e.g. displaying permanent logos
• CPC Class Codes: H10K 59/30 : Devices specially adapted for multicolour light emission
• CPC Class Codes: H10K 59/32 : Stacked devices having two or more layers, each emitting at different wavelengths
• CPC Class Codes: H10K 59/351 : comprising more than three subpixels, e.g. red-green-blue-white [RGBW]
• CPC Class Codes: H10K 59/38 : comprising colour filters or colour changing media [CCM]
• CPC Class Codes: H10K 59/60 : OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
• CPC Class Codes: H10K 59/84 : Parallel electrical configurations of multiple OLEDs
• CPC Class Codes: H10K 59/90 : Assemblies of multiple devices comprising at least one organic light-emitting element
• CPC Class Codes: H10K 65/00 : Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element and at least one organic radiation-sensitive element, e.g. organic opto-couplers organic image sensors integrated with organic light-emitting devices H10K39/34; OLED displays integrated with photosensors H10K59/13
• CPC Class Codes: H10K 77/111 : Flexible substrates
• CPC Class Codes: Y02E 10/549 : Organic PV cells

Abstract

A luminous means comprising a substrate having a first main surface, to which a first electrode is applied, a second electrode, an organic layer stack within an active region of the substrate between the first and the second electrode, wherein the organic layer stack comprises at least one organic layer which is suitable for generating light, and at least one reflective element, which is formed along a main plane of the luminous means, wherein the luminous means has two operating states, such that the luminous means is an illumination source in a first operating state and the luminous means is a mirror in a second operating state.

Claims

1. A luminous means comprising:

a substrate having a first main surface, to which a first electrode is applied,

a second electrode,

an organic layer stack within an active region of the substrate between the first and the second electrode, wherein the organic layer stack comprises at least one organic layer which is suitable for generating light, wherein the organic layer stack is electrically contacted by the first and the second electrode, and

at least one reflective element, which is formed along a main plane of the luminous means, wherein

the luminous means has two operating states, such that the luminous means is an illumination source in a first operating state and the luminous means is a mirror in a second operating state, and

the reflective element comprises an encapsulation for the organic layer stack, wherein the encapsulation is embodied in reflective fashion.

2. The luminous means as claimed in claim 1, wherein the first state is a switched-on state of the luminous means.

3. The luminous means as claimed in claim 1, wherein the second state is a switched-off state of the luminous means.

4. The luminous means as claimed in claim 1, wherein the reflective element is formed along the entire main plane of the luminous means.

5. The luminous means as claimed in claim 1, wherein the reflective element comprises a reflective layer sequence.

6. The luminous means as claimed in claim 5, wherein the reflective layer sequence comprises a dielectric mirror.

7. The luminous means as claimed in claim 1, wherein the reflective element comprises the first or the second electrode and wherein the first or the second electrode is embodied in reflective fashion.

8. The luminous means as claimed in claim 7, wherein the reflective electrode comprises silver, aluminum or gold.

9. The luminous means as claimed in claim 1, wherein the reflective encapsulation comprises a metal cap.

10. The luminous means as claimed in claim 9, wherein the metal cap is a polished metal cap.

11. The luminous means as claimed in claim 1, wherein the reflective encapsulation comprises a getter material which is transmissive to a light generated by the organic layer stack.

12. The luminous means as claimed in claim 1, wherein the reflective encapsulation is formed by a reflective thin-film encapsulation comprising at least one barrier layer.

13. The luminous means as claimed in claim 1, wherein the reflective thin-film encapsulation comprises at least one of the following layers:

a silver layer, a copper layer.

14. The luminous means as claimed in claim 1, wherein the reflective element comprises the substrate, wherein the substrate is embodied in reflective fashion.

15. The luminous means as claimed in claim 1, which is embodied as a bath mirror or a wardrobe mirror comprising a plurality of parts with a main mirror in the center and lateral mirror wings, wherein the lateral mirror wings serve as mirrors in the second operating state and as a light sources in the first operating state.

17. The luminous means as claimed in claim 14, wherein the luminous surface is embodied in accordance with a logo or a symbol.

18. The luminous means as claimed in claim 1, wherein the luminous means is an organic light-emitting diode.

20. The luminous means as claimed in claim 1, wherein the encapsulation is formed by a reflective thin-film encapsulation.

16. A luminous means comprising:

a substrate having a first main surface, to which a first electrode is applied,

a second electrode,

an organic layer stack within an active region of the substrate between the first and the second electrode, wherein the organic layer stack comprises at least one organic layer which is suitable for generating light, wherein the organic layer stack is electrically contacted by the first and the second electrode, and

at least one reflective element, which is formed along a main planes of the luminous means, wherein

the luminous means comprises a light-emitting surface from which light generated in the organic layer stack is emitted during operation,

the light-emitting surface is segmented, such that at least one region of the light-emitting surface is provided as a mirror and at least one other region of the light-emitting surface is provided as a luminous surface during operation, and

the reflective element comprises an encapsulation for the organic layer stack, wherein the encapsulation is embodied in reflective fashion.

19. The luminous means as claimed in claim 16, wherein the luminous means is an organic light-emitting diode.