Back to results
US 7,064,484 B2Granted
Organic EL device
AssigneeLG Electronics Inc.
InventorsMyung Seop Kim, Won Jun Song
Life of this patent
Estimating the term…
Abstract
Top emission type organic EL device including a substrate, a first electrode on the substrate, an organic emitting layer on the first electrode, and a second electrode on the organic emitting layer having a stack of at least one transparent thin film layer.
Claims29
An organic electroluminescence (EL) device, comprising:
- a substrate;
- a first electrode on the substrate;
- an organic emitting layer on the first electrode;
- and
- a second electrode on the organic emitting layer;
- wherein the second electrode comprises a plurality of sets of stacked layers, each of the plurality of sets of stacked layers comprising at least a first layer of a metal, and a second layer of a transparent material;
- and
- wherein each set of stacked layers is formed directly on an adjacent set of stacked layers such that a first layer is positioned between respective second layers of adjacent sets of stacked layers.
5 more elements
An organic EL device comprising:
- a substrate;
- a first electrode on the substrate;
- an organic emitting layer on the first electrode;
- a second electrode comprising a plurality of layers, the plurality of layers forming an alternating stack of metal layers and a transparent thin film layers on the organic emitting layer such that transparent film layers are separated by a metal layer;
- and
- a protection film having a stack of at least one transparent thin film layer on the second electrode,
- wherein the second electrode comprises a plurality of said alternate stacks of said at least one metal layer and said at least one transparent thin film layer, and each alternate stack is formed directly on an adjacent alternate stack.
4 more elements
An organic EL device comprising:
- a substrate;
- a first electrode on the substrate;
- an organic emitting layer on the first electrode;
- a second electrode having a plurality of alternate stacks, wherein each of the plurality of alternate stacks includes at least one metal layer and at least one transparent thin film layer on the organic emitting layer;
- and
- a protection film on the second electrode having a stack of at least one transparent thin film layer,
- wherein each alternate stack is formed directly on an adjacent alternate stack such that a metal layer is interposed between respective transparent thin film layers of adjacent alternate stacks.
4 more elements
Dependencies are inferred from the claim text.