Classifications

• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
  • H10K50/00—Organic light-emitting devices
  • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
  • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
  • H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
  • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
  • H10K59/30—Devices specially adapted for multicolour light emission
  • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
  • H10K50/00—Organic light-emitting devices
  • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
  • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
  • H10K50/115—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
  • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
  • H10K77/10—Substrates, e.g. flexible substrates
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B82—NANOTECHNOLOGY
  • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
  • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B82—NANOTECHNOLOGY
  • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
  • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
  • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
  • H10K2102/301—Details of OLEDs
  • H10K2102/331—Nanoparticles used in non-emissive layers, e.g. in packaging layer
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E10/00—Energy generation through renewable energy sources
  • Y02E10/50—Photovoltaic [PV] energy
  • Y02E10/549—Organic PV cells

Definitions

• the invention relates to an organic light-emitting diode - OLED (organic light emitting diode) - having a color conversion layer for converting a primary radiation generated by the OLED of a first wavelength in radiation and in particular in a second longer wavelength light, as used in particular as a lighting element or as a display can be.
• OLED organic light emitting diode
• color conversion layers is a known method for producing a spectrum of a desired light color or light color mixture from the radiation which is primarily generated by the OLED and is usually monochromatic.
• the aim may be to produce white and in particular daylight approximated light, which is best suited for lighting purposes.
• the OLED can be infinitely scaled to any size substrate surface.
• the floor plan can be arbitrarily designed and adapted to a given use. It can take a geometrically regular form such as e.g. a rectangle, polygon, circle, or any irregular one.
• a buffer layer is provided at least in the area of the at least one support element between the support element and the layer structure, which buffer layer is particularly soft or elastic with a low modulus of elasticity in order to avoid damage to the layer structure by the supporting forces acting on it.
• FIG. 6 and FIG. 7 show an OLED in which the color conversion layer FKS is applied directly to the layer structure SA.
• FIG. 6 shows a cover AD resting directly on the one color conversion layer FKS
• FIG. 7 shows a cavity enclosing the layer structure SA under the cover.
• a sealing or adhesion-promoting layer (not shown) may be provided in a structure similar to that shown in FIG.
• Figure 8 shows a known possible structure of an OLED.
• the OLED has a layer structure SA, which has an organic functional layer FS or a layer sequence with at least one organic layer may have an active region that can emit electromagnetic radiation during operation.
• This is a layer containing at least one dye or, in rare cases, only one dye.
• Next Metal-oxygen binary compounds such as ZnO, SnO 2 or In 2 O 3 also include ternary metal oxygen compounds such as Zn 2 SnO 4 , CdSnO 3 , ZnSnO 3 , MgIn 2 O 4 , GaInO 3 , Zn 2 In 2 Os or In 4 Sn 3 O 12 or mixtures of different transparent conductive oxides to the group of TCOs.
• the TCOs do not necessarily have to correspond to a stoichiometric composition and can also be p- or n-doped.
• the first electrode may also comprise a metal, for example silver.
• the partial layers TS of the color conversion layer FKS can be applied as a dispersion in a polymeric matrix, which optionally cures after application.
• the OLED can be used for illumination purposes predominantly emitting white mixed color.
• the color conversion layer or its partial layers can also give a different resulting light color, so that also e.g. decorative applications and illustrative figures can be generated with the OLED.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Nanotechnology (AREA)
• Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Crystallography & Structural Chemistry (AREA)
• General Physics & Mathematics (AREA)
• Composite Materials (AREA)
• Condensed Matter Physics & Semiconductors (AREA)
• Materials Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Biophysics (AREA)
• Inorganic Chemistry (AREA)
• Electroluminescent Light Sources (AREA)

Priority Applications (4)

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Publications (1)

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Citations (4)

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• 2007
  • 2007-02-27 DE DE102007009530A patent/DE102007009530A1/de not_active Withdrawn
• 2008
  • 2008-02-01 TW TW097103878A patent/TWI359519B/zh not_active IP Right Cessation
  • 2008-02-26 CN CN200880006340A patent/CN101622732A/zh active Pending
  • 2008-02-26 US US12/527,655 patent/US8174034B2/en active Active
  • 2008-02-26 WO PCT/DE2008/000341 patent/WO2008104164A1/de not_active Ceased
  • 2008-02-26 JP JP2009551099A patent/JP5409392B2/ja not_active Expired - Fee Related
  • 2008-02-26 EP EP08734322.4A patent/EP2126998B1/de not_active Not-in-force
  • 2008-02-26 KR KR1020097020008A patent/KR101417178B1/ko not_active Expired - Fee Related

Patent Citations (4)

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