Transparent light-emitting component
First Claim
1. Transparent light-emitting component, in particular organic light-emitting diode, having a transparent layer arrangement in which are formed, on a transparent substrate in a stack, planar electrodes and an organic region arranged between the planar electrodes, which organic region comprises a light-emitting layer, made from one or a plurality of organic materials, wherein:
- for at least one direction of incidence, a transmittance of the transparent layer arrangement for at least one wavelength subrange in the visible spectral range is greater than 50%;
one of the planar electrodes has a metal layer having a thickness of less than 40 nm;
another of the planar electrodes, which is arranged opposite to the electrode in the layer arrangement, has an oxide layer made from an electrically conductive oxide material having a thickness of at least 10 nm; and
one or a plurality of doped charge carrier transport layers are formed in the organic region;
characterized in that an intensity ratio of at least 2;
1 is formed for a light emission emerging on one side of the transparent layer arrangement and a light emission emerging on an opposite side of the transparent layer arrangement and a coupling-out layer for coupling out light is formed on the electrode and/or the other electrode, wherein the coupling-out layer is made from an organic material.
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Accused Products
Abstract
The invention relates to a transparent light-emitting component, in particular organic light-emitting diode, having a transparent layer arrangement in which are formed, on a substrate in a stack, planar electrodes and an organic region arranged between the planar electrodes, which organic region comprises a light-emitting layer, made from one or a plurality of organic materials. For at least one direction of incidence, a transmittance of the transparent layer arrangement for at least one wavelength subrange in the visible spectral range is greater than 50%. One of the planar electrodes has a metal layer having a thickness of less than 40 nm, and another of the planar electrodes, which is arranged opposite to the electrode in the layer arrangement, has an oxide layer made from an electrically conductive oxide material having a thickness of at least 10 nm, an intensity ratio of at least 2:1 being formed for a light emission emerging on one side of the transparent layer arrangement and a light emission emerging on an opposite side of the transparent layer arrangement.
25 Citations
19 Claims
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1. Transparent light-emitting component, in particular organic light-emitting diode, having a transparent layer arrangement in which are formed, on a transparent substrate in a stack, planar electrodes and an organic region arranged between the planar electrodes, which organic region comprises a light-emitting layer, made from one or a plurality of organic materials, wherein:
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for at least one direction of incidence, a transmittance of the transparent layer arrangement for at least one wavelength subrange in the visible spectral range is greater than 50%; one of the planar electrodes has a metal layer having a thickness of less than 40 nm; another of the planar electrodes, which is arranged opposite to the electrode in the layer arrangement, has an oxide layer made from an electrically conductive oxide material having a thickness of at least 10 nm; and one or a plurality of doped charge carrier transport layers are formed in the organic region;
characterized in that an intensity ratio of at least 2;
1 is formed for a light emission emerging on one side of the transparent layer arrangement and a light emission emerging on an opposite side of the transparent layer arrangement and a coupling-out layer for coupling out light is formed on the electrode and/or the other electrode, wherein the coupling-out layer is made from an organic material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification
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- Resources
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Current AssigneeNovaled AG
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Original AssigneeNovaled AG
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InventorsMurano, Sven, Vehse, Martin, Birnstock, Jan
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Primary Examiner(s)Patel; Nimeshkumar D.
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Assistant Examiner(s)Raabe; Christopher M
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Application NumberUS11/908,302Publication NumberTime in Patent Office1,853 DaysField of Search313498-512, 315/169.3, 345/36, 345/45, 345/76US Class Current313/506CPC Class CodesH10K 2102/3031 Two-side emission, e.g. tra...H10K 2102/351 ThicknessH10K 50/155 comprising dopantsH10K 50/165 comprising dopantsH10K 50/816 Multilayers, e.g. transpare...H10K 50/828 Transparent cathodes, e.g. ...H10K 50/85 Arrangements for extracting...H10K 50/852 comprising a resonant cavit...H10K 50/858 comprising refractive means...
