Abstract:
Novel microlens array architectures for enhanced light outcoupling from light emission are provided. Organic light emitting devices (OLEDs) that include an outcoupling layer including these novel microlens array architectures and method for fabricating such OLEDs are provided. These devices may be used to provide OLEDs with optimized light extraction.
Abstract:
Methods and devices for controlling pressures in microenvironments between a deposition apparatus and a substrate are provided. Each microenvironment is associated with an aperture of the deposition apparatus which can allow for control of the microenvironment.
Abstract:
Embodiments of the disclosed subject matter provide a nozzle assembly and method of making the same, the nozzle assembly including a first aperture formed on a first aperture plate to eject a carrier gas flow having organic vapor onto a substrate in a deposition chamber, second apertures formed on a second aperture plate disposed adjacent to the first aperture to form a vacuum aperture, where the first aperture plate and the second aperture plate are separated by a first separator plate, third apertures formed on a third aperture plate to eject purge gas that are disposed adjacent to the second aperture plate, where the second aperture plate and the third aperture plate are separated by second separator plate, and a third separator plate is disposed adjacent to the one or more third aperture plates to form a gas channel in the one or more third aperture plates.
Abstract:
Sources, devices, and techniques for deposition of organic layers, such as for use in an OLED, are provided. A vaporizer may vaporize a material between cooled side walls and toward a mask having an adjustable mask opening. The mask opening may be adjusted to control the pattern of deposition of the material on a substrate, such as to correct for material buildup that occurs during deposition. Material may be collected from the cooled side walls for reuse.
Abstract:
Novel microlens array architectures for enhanced light outcoupling from light emission are provided. Organic light emitting devices (OLEDs) that include an outcoupling layer including these novel microlens array architectures and method for fabricating such OLEDs are provided. These devices may be used to provide OLEDs with optimized light extraction.
Abstract:
Embodiments disclosed herein provide devices having a nozzle die with one or more nozzles, each of which has one or more integrated skimmers. The use of an integrated nozzle/skimmer structure allows for higher-resolution printing in OVJP-type deposition techniques without requiring the use of a shadow mask by allowing for a relatively narrow organic material beam that can be placed at relatively high distances away from the substrate.
Abstract:
Embodiments of the disclosed subject matter provide a device including a micronozzle array having separate redundant groups of depositors that each include a delivery aperture disposed between two exhaust apertures. The device may include a first row of depositors of a first redundant group, each of which may be connected in parallel to first common delivery lines and first common exhaust lines. The device may include a second row of depositors of a second redundant group, each of which is connected in parallel to second common delivery and second common exhaust lines. The first row of depositors and the second row of depositors may operate independently from one another. The device may be disposed within a deposition chamber and in proximity of a substrate.
Abstract:
Embodiments of the disclosed subject matter provide a laser source configured to output a laser beam, a beam transfer cavity to receive the outputted laser beam on a first side of the apparatus and output the laser beam on a second side of the apparatus, wherein the first side is opposite the second side, and a plume removal device having an exhaust aperture on the second side of the apparatus facing a heat affected zone (HAZ). A bottom surface of the plume removal device may be facing the substrate, where organic matter is disposed on the substrate, and the HAZ may be aligned with the surface of the substrate having the organic matter to be ablated by the laser beam.
Abstract:
Systems and techniques for depositing organic material on a substrate are provided, in which one or more shield gas flows prevents contamination of the substrate by the chamber ambient. Thus, multiple layers of the same or different materials may be deposited in a single deposition chamber, without the need for movement between different deposition chambers, and with reduced chance of cross-contamination between layers.
Abstract:
Designs and arrangements for sublimation cells are provided, which enriches an inert carrier gas with organic vapor such that the partial pressure of the organic vapor is highly stable in time. Stability is achieved by controlling the local rates of evaporation along the solid-gas interface through one or more crucibles, thereby reducing the effects of greater headspace and lowering interfacial area as the source depletes. Local evaporation rates also can be controlled using either temperature distribution or convective flow fields.