WO2016087548A1 - Composant électroluminescent organique pourvu d'une structure en couches ayant une influence sur la lumière et procédé de production d'une structure en couches ayant une influence sur la lumière - Google Patents

Composant électroluminescent organique pourvu d'une structure en couches ayant une influence sur la lumière et procédé de production d'une structure en couches ayant une influence sur la lumière Download PDF

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Publication number
WO2016087548A1
WO2016087548A1 PCT/EP2015/078412 EP2015078412W WO2016087548A1 WO 2016087548 A1 WO2016087548 A1 WO 2016087548A1 EP 2015078412 W EP2015078412 W EP 2015078412W WO 2016087548 A1 WO2016087548 A1 WO 2016087548A1
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WO
WIPO (PCT)
Prior art keywords
light
layer structure
microstructures
organic
influencing
Prior art date
Application number
PCT/EP2015/078412
Other languages
German (de)
English (en)
Inventor
Kilian REGAU
Andreas Rausch
Daniel Riedel
Erwin Lang
Michael Popp
Nina Riegel
Jörg FARRNBACHER
Original Assignee
Osram Oled Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osram Oled Gmbh filed Critical Osram Oled Gmbh
Publication of WO2016087548A1 publication Critical patent/WO2016087548A1/fr

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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
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices

Definitions

  • the invention relates to an organic light-emitting component with an organic functional
  • a layer structure and a method for producing a light-influencing layer structure for such an organic light-emitting device are described.
  • Optoelectronic components which emit light can be, for example, light-emitting diodes (LEDs) or organic ones
  • An OLED may have an anode and a cathode with an organic functional layer system therebetween.
  • the organic functional may be light emitting diodes (OLEDs).
  • Layer system may include one or more
  • Emitter layers in which electromagnetic radiation is generated a charge carrier pair generation layer structure of two or more
  • CGL Charge pair generation charge generating layer
  • HT hole transport layer
  • E electron transport layer
  • Such organic light-emitting components usually form a surface light source, often a
  • Radiation characteristic often considered not optimal.
  • such surface light sources at high brightness from 3000 Cd / m 2 the glare-free at AbstrahlwinkeIn between 65 ° up to 90 ° to the ceiling standard, which may violate applicable standards and / or guidelines.
  • An object of the invention is to provide an organic compound
  • Specify light-emitting device that provides a desired radiation characteristics in the required and / or desired dimensions, in particular without requiring an additional element, and / or that corresponds to the standards and / or guidelines applicable here.
  • Another object of the invention is to provide a method for producing a light-influencing layer structure of an organic light-emitting component, which can be carried out simply and / or inexpensively.
  • the Light-influencing layer structure is arranged downstream in the emission at least one light-influencing layer structure.
  • the light-influencing layer structure has a plurality of microstructures each having a high aspect ratio.
  • microstructures are recesses in the
  • the recesses can completely or only partially penetrate the light-influencing layer structure.
  • the recesses are formed in the emission direction of the organic functional layer structure.
  • the recesses can be made according to their desired
  • microstructures designed as a recess enable a desired influencing of the emission direction of the organic functional
  • the microstructures are light channels.
  • the microstructures are thus suitable for light guidance and
  • the light channels are tubular.
  • the aspect ratio of the microstructures is the respective
  • Ratio of a length of the microstructure to a width of the microstructure is in the present application, in particular the ratio of the length of Microstructure to its width, especially to her
  • the high aspect ratio is in a range between 100,000 to 1 and 1000 to 1, in particular in a range between 10,000 to 1 and 5,000 to 1.
  • the ratio of length to width of the microstructures is thus above average, thus advantageously an arbitrarily changeable beam distribution can be realized ,
  • the organic light-emitting component accordingly has the same for changing and / or influencing the emission characteristic of the organic functional layer structure
  • organic functional layer structure can be changed in any desired manner, without violating existing standards and / or guidelines. In other words, while maintaining standards, the
  • juxtaposed microstructures may be the same or different.
  • the high aspect ratio microstructures can locally change the emission direction in any desired manner.
  • the emission direction can be directed and / or bundled in such a way that, with appropriate application, such as in
  • the first electrode and the second electrode are designed to electrically contact the organic functional layer structure.
  • the first electrode and the second electrode are each formed as an electrically conductive electrode layer.
  • the organic functional layer structure is intended to facilitate the conversion of electrically generated data or energy into light emission.
  • the organic functional layer structure is an optically active region of the organic light-emitting
  • Component in particular an OLED.
  • the light-influencing layer structure is for it
  • the light-influencing layer structure consists only of a single layer.
  • the light-influencing layer structure may be formed as a layer stack. In this case, it is again conceivable that individual layers of this layer stack assume different functions, in particular those of the organic Functional layer structure radiation in different ways affect and / or more
  • the light-influencing layer structure may be formed as a body, for example as a glass body.
  • the light-influencing layer structure may be arranged downstream of the organic functional layer structure over its entire area in the emission direction. Alternatively, the light-influencing layer structure can only one
  • Layer structure are three-dimensional structures.
  • Microstructures are thus formed as three-dimensional shapes in the light-influencing layer structure.
  • the three-dimensional structures are provided for and particularly suitable for the organic
  • Functional layer structure to influence emitted radiation, for example, to change their beam path and direct.
  • the beam path of the radiation emitted by the organic functional layer structure is due to multiple reflection, for example on inner walls of the
  • Microstructures and / or by absorption of light which is not directed as intended or intended, deflected and / or prevented. This makes it possible to direct rays by reflection on the microstructures in a direction provided or absorb, so that at one
  • the light-influencing layer structure has a plurality of microstructures, which preferably laterally adjoin one another in the light-influencing
  • Layer structure are arranged.
  • the microstructures are laterally adjacent to each other, that is perpendicular to the emission direction of the organic functional
  • Microstructures may be identical in shape and / or size. Alternatively, for example, for a desired influence and
  • the microstructures differ, for example, in their shape, size and / or orientation. According to a development, the length of the microstructure is in a range between 100 ⁇ m and 5 mm in each case,
  • the width of the microstructure is in each case in a range between 1 ⁇ m and 100 ⁇ m,
  • the widths of the microstructures for influencing the light therefore have magnitudes in the micrometer range, whereas the lengths are in the millimeter range or at least in the tenth of a millimeter range.
  • Microstructures may be the direction of emission of the emitted from the organic functional layer structure
  • Radiation can be changed in the desired manner, without violating existing standards and / or guidelines.
  • the microstructures change a radiation characteristic of the organic functional
  • a desired and / or required emission characteristic of the organic light-emitting component as a whole can thus advantageously
  • the microstructures change the emission characteristic such that at least one spot is generated.
  • the spot is a defined
  • downstream in the emission direction of light-influencing layer structure advantageously allows the modification of this surface light source in the spot, thus advantageously desired applications can be realized.
  • such is an extremely directional
  • a laptop which is visible only by a user who is in front of it, is visible and by a user who is a little laterally offset, is not visible.
  • laterally adjacent, differently formed microstructures are arranged at least in regions in the light-influencing layer structure.
  • Microstructures advantageously allow a local setting of the emission characteristics and / or
  • microstructures for example, light channels, tubes, recesses, cylinder-like or cylindrical shapes or shapes with rounded, round-like or rounded side walls are conceivable.
  • Triangular shape or a parallelogram shape Triangular shape or a parallelogram shape.
  • microstructures can also be at their angle, they with a footprint of the light-influencing
  • Include layer structure differ. Here are angles between 1 ° and 90 ° of a side wall of the microstructure to the base and / or interface of
  • Radiation direction are arranged.
  • at least regionally is to be understood here in particular that not all adjacent
  • Microstructures must differ in their training. Rather, it is possible that locally limited in the
  • This locally limited area with identically formed microstructures adjoins, for example, another locally limited area with again identically designed microstructures, the microstructures of the individual areas differing from one another.
  • Light emitting device can thus cost
  • the carrier is, for example, a substrate, for example a glass or plastic substrate, above which preferably at least one transparent electrode for electrical
  • the cover has, for example, a
  • Lid for example, a glass lid a
  • Adhesive layer and / or an encapsulation and closes the organic functional layer structure, for example, hermetically sealed.
  • the light-influencing layer structure arranged on the support or the cover body of the organic light-emitting component.
  • the light-influencing layer structure arranged on the support or the cover body of the organic light-emitting component.
  • the carrier and / or the cover body are more flexible in their design, such as in their choice of material.
  • the microstructures exhibit
  • the light emitted by the organic functional layer structure can be correspondingly further desired properties changed and / or influenced.
  • the microstructures or at least a part of the microstructures have a mirror layer, a
  • Antireflection layer an oxide layer, such as titanium oxide or aluminum oxide, a metal layer, such as
  • an aluminum layer and / or a
  • Microstructures or at least a portion of the microstructures with scattering material, converter material and / or materials of different refractive indices such as ceramic and / or silicone may be wholly or partially filled.
  • the light-influencing comprises
  • Layer structure a layer stack that extends along the emission direction of the organic functional
  • the light-influencing layer structure thus consists of a plurality of individual layers which
  • Layer structure different light influencing and / or further the organic light emitting device influencing properties.
  • one layer of the layer stack is an adhesion layer
  • another layer is a heat-conducting layer
  • a third layer is a scatter layer
  • / or a fourth layer is the layer
  • the light-influencing layer structure thus has a multilayer structure with internal functional
  • microstructures may extend over multiple, for example, all, layers of the layer stack.
  • light-influencing layer structure which may also include a plurality of flatly stacked or juxtaposed films, by its flexible mechanical
  • a problem is further solved by a method for
  • Radiation direction is arranged downstream, wherein in the
  • Light channels each have a high aspect ratio.
  • the aspect ratio is the ratio of a length of the light channels to a width of the respective light channels, respectively, and the high aspect ratio is in a range between 100,000 to 1 and 1,000 to 1.
  • microstructures can be in the light-influencing
  • the laser pulse method is performed with a pulse frequency in a range between 1 pulse per second to 3000 pulses per second.
  • Figure 1 is a side sectional view of a
  • Embodiment of an organic light emitting device Embodiment of an organic light emitting device
  • Figure 2 is a side sectional view of a
  • Figure 3 is a side sectional view of a
  • Embodiment of an organic light emitting device Embodiment of an organic light emitting device
  • Figure 4 is a side sectional view of a
  • Embodiment of an organic light emitting device Embodiment of an organic light emitting device.
  • An organic light emitting device may be formed as an organic light emitting diode (OLED) or as an organic light emitting transistor.
  • the light may, for example, be light in the visible range, UV light and / or infrared light.
  • the organic light emitting device may be part of an integrated circuit in various embodiments. Furthermore, a plurality of organic light-emitting components may be provided,
  • Fig. 1 shows an embodiment of an organic light emitting device 1.
  • the organic Light-emitting component 1 has a carrier 12.
  • the carrier 12 may be translucent or transparent.
  • the carrier 12 serves as a carrier element for electronic
  • the carrier 12 may be, for example, plastic,
  • the carrier 12 may comprise or be formed from a plastic film or a laminate with one or more plastic films.
  • the carrier 12 may be mechanically rigid or mechanically flexible.
  • On the support 12 is an organic functional
  • the organic functional layer structure has a first electrode layer 14, which has a first contact section 16, a second contact section 16
  • the carrier 12 with the first electrode layer 14 may also be referred to as a substrate. A first one may not exist between the carrier 12 and the first electrode layer 14
  • barrier layer for example, a first
  • the first electrode 20 is electrically insulated from the first contact portion 16 by means of an electrical insulation barrier 21.
  • the second contact portion 18 is electrically coupled to the first electrode 20 of the organic functional layer structure.
  • the first electrode 20 may be formed as an anode or as a cathode.
  • the first electrode 20 may be translucent or transparent.
  • Electrode 20 comprises an electrically conductive material, for example metal and / or a conductive transparent oxide (TCO) or a
  • the first electrode 20 may comprise a layer stack of a combination of a layer of a metal on a layer of a TCO, or vice versa.
  • An example is a silver layer deposited on an indium-tin Oxide layer (ITO) is applied (Ag on ITO) or ITO-Ag-ITO multilayers.
  • ITO indium-tin Oxide
  • the first electrode 20 may alternatively or in addition to the materials mentioned:
  • Networks of metallic nanowires and particles for example of Ag, networks of carbon nanotubes, graphene particles and layers and / or networks of semiconducting nanowires.
  • first electrode 20 is an optically functional layer structure, for example an organic compound
  • the organic functional layer structure 22 may, for example, have one, two or more partial layers.
  • the organic functional layer structure 22 may be a
  • Hole injection layer a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a hole transport layer, a
  • Emitter layer an electron transport layer and / or an electron injection layer.
  • Hole injection layer serves to reduce the band gap between first electrode and hole transport layer.
  • the hole conductivity is larger than the electron conductivity.
  • the hole transport layer serves to transport the holes.
  • the electron conductivity is larger than that
  • the electron transport layer serves to transport the holes.
  • the electron injection layer serves to reduce the band gap between the second electrode and the electron transport layer.
  • the organic functional layer structure 22 may be one, two or more
  • organic functional layer structure 22, 5 is a second electrode 23 of the organic functional
  • the second electrode 23 may according to one of the embodiments of the first electrode 20 be formed, wherein the first electrode 20 and the second electrode 23 may be the same or different.
  • the first electrode 20 serves, for example, as the anode or cathode of the organic functional layer structure.
  • the second electrode 23 serves corresponding to the first electrode as the cathode or anode of the organic
  • the organic functional layer structure is a
  • Area is, for example, the area of the organic light-emitting component 10 in which electric current flows for the operation of the organic light-emitting component 10 and / or in which electromagnetic radiation is generated.
  • a getter structure ⁇ not shown) may be arranged on or above the active area.
  • the getter layer can be translucent, transparent or opaque.
  • the getter layer may include or be formed of a material that absorbs and binds substances that are detrimental to the active area.
  • Contact section 18 is an encapsulation layer 24 of the organic functional layer structure formed, which encapsulates the organic functional layer structure.
  • the encapsulation layer 24 may be formed as a second barrier layer, for example as a second barrier thin layer.
  • the encapsulation layer 24 may also be referred to as
  • Thin-layer encapsulation may be referred to.
  • Encapsulation layer 24 forms a barrier to chemical contaminants or atmospheric agents, especially to water (moisture) and oxygen.
  • the encapsulation layer 24 may be formed as a single layer, a layer stack, or a layered structure.
  • the encapsulation layer 24 may include or be formed from: alumina, zinc oxide, zirconia,
  • the first barrier layer may be formed on the carrier 12 corresponding to a configuration of the encapsulation layer 24.
  • Encapsulation layer 24 a first contact region 32 is exposed and in the second recess of
  • Encapsulation layer 24 a second contact region 34 is exposed.
  • the first contact region 32 serves for
  • the adhesive layer 36 comprises, for example, an adhesive, for example an adhesive,
  • the adhesive layer 36 may comprise, for example, particles which scatter electromagnetic radiation, for example light-scattering particles.
  • the adhesive layer 36 serves to secure the cover body 38 to the encapsulation layer 24.
  • the cover body 38 has, for example, plastic, glass
  • the cover body 38 may be formed substantially of glass and a thin
  • the cover body 38 serves to protect the organic light-emitting component 1, for example, against mechanical forces from the outside. Furthermore, the cover body 38 for distributing and / or
  • the glass of the covering body 38 can serve as protection against external influences, and the metal layer of the covering body 38 can serve for distributing and / or dissipating the heat arising during operation of the organic light-emitting component 1.
  • the carrier 12 or the covering body 38 of the organic light-emitting component 1 may comprise a plurality of integrated microstructures, which are used for
  • the organic light emitting device 1 without the carrier 12 may also be referred to as the light emitting structure 10.
  • the exemplary embodiment of the organic light-emitting component 1 of FIG. 1 is designed as a bottom emitter.
  • the carrier 12 is a light-influencing
  • the functional layer structure 22 is arranged downstream in the emission direction.
  • the plurality of microstructures 3 are formed in the light-influencing layer structure 2. These are in the
  • the microstructures 3 are three-dimensional structures, in particular recesses in the light-influencing
  • the microstructures 3 serve as light channels which are suitable for guiding light. In particular, the light channels lead the light from the
  • organic functional layer structure 22 such way and in particular change the microstructures 3 the
  • Layer structure 22 such that outside of the organic light-emitting device 1, for example on a wall, a floor or a table, at least one spot is generated.
  • the emission direction of the light emitted by the organic light-emitting component 1 as a whole is therefore bundled into a spot, with which a
  • the microstructures 3 have a high aspect ratio, ie a high ratio of length to width.
  • Aspect ratio is in a range between 100000 to 1 and 1000 to 1, for example, between 10000 to 1 and 5000 to 1.
  • Layer structure 22 emitted light in one of
  • Microstructures 3 propagates, so the light depending on the beam path along which it passes, once, twice or more times on the inner walls of the corresponding
  • Microstructure 3 are reflected. If the angle
  • microstructures 3 Due to the high aspect ratio of the microstructures 3 is already light that propagates in one of the microstructures 3 and extends along an optical path that only a small angle to the direction of extension of
  • corresponding microstructure 3 has, so often reflected on the corresponding inner wall, that only a small and / or negligible proportion of the light leaves the corresponding microstructure 3, without in the
  • the proportion of light is only slight or negligible may mean, for example, that it is so small that it is no longer perceptible to the naked eye and / or that the light is only less than 10%, for example less than 1%. that has the original intensity.
  • is weakened negligibly may mean, for example, that it is weakened so little that the
  • the extension direction that is to say by means of predetermined formation of the microstructures 3, the main emission direction of the light emitted at a light exit side of the microstructures 3 can be predetermined.
  • light-emitting device 1 in compliance with applicable standards and guidelines. Additional elements, such as reflectors and screens, are advantageously not necessary.
  • the covering body 38 has the microstructures 3.
  • Layer is formed, which is applied to the carrier 12 or on the cover body 38.
  • Layer structure 2 have one, two or more layers and / or a layer stack which extends along the
  • Layer structure 22 and / or extending perpendicular thereto.
  • the individual layers of the light-influencing layer structure 2 can have different light-influencing properties and / or properties influencing the organic light-emitting component 1.
  • Layer structure 2 are used in conjunction with the
  • FIG. 2 shows an exemplary embodiment of an organic light-emitting component 1 which comprises the light-emitting structure 10 and the light-influencing layer structure 2.
  • the light emitting structure 10 may alternatively or in addition to the carrier 12, which is not shown in Figure 2, be formed.
  • the light-influencing layer structure 2 has the
  • a length L of the microstructures 3 is in each case in a range between 100 [im to 5 mm,
  • the width B of the microstructures 3 lies in a range between 1 ⁇ ⁇ to 100 ⁇ m
  • Lateral adjacent microstructures 3a, 3b are at least partially designed differently, so they have
  • the light-influencing layer structure 2 can have regions of identically designed microstructures 3, wherein
  • Microstructures 3 adjacent areas can distinguish. As a result, for example, a plurality of spots can be produced with the light-influencing layer structure 2.
  • Layer structure 2 and a side wall of the microstructure 3 included angle ⁇ can be between 1 ° and 180 °.
  • a cross section of the microstructures 3 may be trapezoidal, rectangular, in the form of a parallelogram, triangular or cylindrical. Examples of possible shapes are shown inter alia in FIG. Alternatively, all microstructures 3 may be the same
  • the microstructures 3 may be circular in cross-section,
  • FIG. 3 shows an exemplary embodiment of an organic light-emitting component 1 that has the light-emitting structure 10 and the light-influencing layer structure 2.
  • the light-emitting structure 10 may alternatively or in addition to the support 12, which is not shown in Figure 3, be formed.
  • the light-influencing layer structure 2 has a
  • the coating 4 is a
  • Antireflection layer a mirror layer, a
  • microstructures 3 may also have an internal coating
  • a mirror layer For example, a mirror layer or a
  • the internal coating is carried out for example by means of an ALD method (ALD: Atomic Layer Deposition).
  • the microstructures 3 may have a filling material, that is to say be completely or at least partially filled with the filling material.
  • the microstructures 3 are filled with a scattering material and / or with a converter material, so that further desired
  • FIG. 4 shows an exemplary embodiment of an organic light-emitting component 1 that has the light-emitting structure 10 and the light-influencing layer structure 2.
  • a functional layer 6 is arranged, for example, a scattering layer and / or a heat conducting layer.
  • the functional layer 6 is arranged, for example, a scattering layer and / or a heat conducting layer.
  • Layer structure 2 accordingly has a multilayer structure with functional properties.
  • Layer structure 2 is a laterally adjacent to each other configured, multi-layered structure possible. So can
  • the organic light-emitting component 1, in particular the organic functional layer structure 22, may be segmented.
  • Assembly can be arranged.

Abstract

Selon différents exemples de modes de réalisation, l'invention concerne un composant électroluminescent organique (1) pourvu d'une structure en couches (2) ayant une influence sur la lumière, et un procédé de réalisation d'une structure en couches (2) ayant une influence sur la lumière et destinée à un composant électroluminescent organique (1). Le composant électroluminescent organique (1) comporte une première électrode (20), une structure en couches fonctionnelle et organique qui est disposée sur la première électrode et est destinée à générer de la lumière, et une deuxième électrode (23) qui est disposée sur la structure en couches (22) fonctionnelle et organique. Dans la direction de rayonnement, une structure en couches (2) ayant une influence sur la lumière est implantée en aval de la structure en couches (22) fonctionnelle et organique, ladite structure en couches (2) présentant une pluralité de microstructures (3) présentant respectivement un facteur de forme élevé.
PCT/EP2015/078412 2014-12-03 2015-12-02 Composant électroluminescent organique pourvu d'une structure en couches ayant une influence sur la lumière et procédé de production d'une structure en couches ayant une influence sur la lumière WO2016087548A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014117775.4 2014-12-03
DE102014117775.4A DE102014117775A1 (de) 2014-12-03 2014-12-03 Organisches lichtemittierendes Bauelement mit einer lichtbeeinflussenden Schichtenstruktur und Verfahren zum Herstellen einer lichtbeeinflussenden Schichtenstruktur

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Publication Number Publication Date
WO2016087548A1 true WO2016087548A1 (fr) 2016-06-09

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WO (1) WO2016087548A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016101872A1 (de) * 2016-02-03 2017-08-03 Osram Oled Gmbh Leuchte und Verfahren zum Herstellen einer Leuchte

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JP2000284134A (ja) * 1999-03-31 2000-10-13 Seiko Epson Corp 光学装置
US20020076655A1 (en) * 1999-07-29 2002-06-20 Borrelli Nicholas F. Direct writing of optical devices in silica-based glass using femtosecond pulse lasers
US20020168157A1 (en) * 2000-12-14 2002-11-14 Walker James K. Method and apparatus for fabrication of plastic fiber optic block materials and large flat panel displays
EP1385219A2 (fr) * 2002-07-23 2004-01-28 Eastman Kodak Company Dispositifs d'affichage OLED avec plaque frontale à fibres optiques
US20080297894A1 (en) * 2007-05-28 2008-12-04 Seamless Imaging Systems, Inc. Display device

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DE102011101585B4 (de) * 2011-05-12 2015-11-12 Technische Universität Dresden Verfahren zur Herstellung von Leuchtdioden oder photovoltaischen Elementen
DE102012103159A1 (de) * 2012-04-12 2013-10-17 Osram Opto Semiconductors Gmbh Strahlung emittierendes Bauelement, transparentes Material und Füllstoffpartikel sowie deren Herstellungsverfahren
US9110331B2 (en) * 2013-03-13 2015-08-18 Vizio, Inc. Ultra-thin backlight for LCD displays through use of field-induced polymer electro luminescence panels including integrated light guide
DE102013111736A1 (de) * 2013-10-24 2015-04-30 Osram Oled Gmbh Organische lichtemittierende Diode und Verfahren zum Herstellen einer organischen lichtemittierenden Diode

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Publication number Priority date Publication date Assignee Title
JP2000284134A (ja) * 1999-03-31 2000-10-13 Seiko Epson Corp 光学装置
US20020076655A1 (en) * 1999-07-29 2002-06-20 Borrelli Nicholas F. Direct writing of optical devices in silica-based glass using femtosecond pulse lasers
US20020168157A1 (en) * 2000-12-14 2002-11-14 Walker James K. Method and apparatus for fabrication of plastic fiber optic block materials and large flat panel displays
EP1385219A2 (fr) * 2002-07-23 2004-01-28 Eastman Kodak Company Dispositifs d'affichage OLED avec plaque frontale à fibres optiques
US20080297894A1 (en) * 2007-05-28 2008-12-04 Seamless Imaging Systems, Inc. Display device

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