High Resolution Organic Light-Emitting Diode Devices, Displays, and Related Method
AssigneeKateeva, Inc.
InventorConor F. Madigan
Life of this patent
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Abstract
In accordance with an exemplary embodiment of the present disclosure, a method of manufacturing an organic light-emissive display can be provided. A plurality of electrodes can be provided on a substrate. A first hole conducting layer can be deposited via inkjet printing over the plurality of electrodes on the substrate. A liquid affinity property of selected surface portions of the first hole conducting layer can be altered to define emissive layer confinement regions. Each emissive layer confinement region can have a portion that respectively corresponds to each of the plurality of electrodes provided on the substrate. An organic light-emissive layer can be deposited via inkjet printing within each emissive layer confinement region.
Claims20
A method of manufacturing an organic light-emissive display comprising:
- depositing, via inkjet printing, an organic light-emissive material on a hole conducting layer disposed over a plurality of electrodes on a surface of a substrate;
- wherein the hole conducting layer comprises:
- a plurality of confinement regions having a first surface energy and being separated from each other by boundary regions having a second surface energy property differing from the first surface energy property, each confinement region being associated with one or more electrodes of the plurality of electrodes and spanning an area larger than an active area of the one or more electrodes;
- and
- treating the organic light-emissive material deposited over the hole conducting layer to form an organic light-emissive layer, the differing first and second surface energy properties causing the organic light-emissive layer to be confined to the confinement regions.
A method of manufacturing an organic light-emissive display comprising:
- depositing, via inkjet printing, an organic light-emissive material onto confinement regions of a hole conducting layer disposed over a plurality of electrodes disposed on a surface of a substrate, each of the confinement regions being associated with one or more electrodes of the plurality of electrodes and spanning an area larger than an active area of the one or more electrodes;
- wherein, the organic light-emissive material deposited onto the confinement regions is confined from spreading beyond the confinement regions due to differing surface energy properties of the confinement regions and boundary regions of the hole conducting layer surrounding the confinement regions;
- and
- treating the organic light-emissive material deposited onto the confinement regions of the hole conducting layer to form an organic light-emissive layer confined within each of the confinement regions.
Dependencies are inferred from the claim text.