Osram Opto Semiconductors Gmbh

Osram Opto Semiconductor Gmbh

Osram Opto Semi-conductors Gmbh Co. Ohg

Matthias Stoessel

Karsten Heuser

Jan Birnstock

Joerg Blaessing

Georg Wittmann

Karl Pichler

Andreas Kanitz

Tobias Frost

Elizabeth Tai

Dirk Buchhauser

Georg Wittman

Stephan Roeger

A method is described for large-area application of at least two, for example, electroluminescent layers onto a substrate. In a process step A), spacer () is structured on the transparent substrate in such a way that, upon application of a second functional layer (), contact between a first functional layer () already applied on the substrate and a part of a printing machine responsible for the transfer of the functional layers onto the substrate is avoided. In two other process steps B) and C), the first functional layer () and the second functional layer () are applied over a large area, for example, through large-area standard printing methods.

Method for applying mechanically sensitive layers to a substrate over a large area

The invention describes a passive-matrix powered display with structured pixels and a structured second electrode based on electroluminescent polymers with the following characteristics: functional polymer coatings, which contact a first electrode, are enclosed by windows of an insulating window coating, at least one additional insulating striped coating, which is located between the windows of the first insulating coating, is located across from the first electrode strips as a partition, a second electrode that contacts the functional coatings is structured through partitions and runs across toward the first electrode strips between the partitions.

Organic electroluminescent device and the production thereof

The invention relates to a passive matrix-driven display based on electroluminescent polymers having a structured matrix of pixels and a structured second electrode with electrode connectors, having the following features: the functional polymers are delimited by windows of an insulating layer and contact a first electrode structured in the shape of strips and a second electrode, running parallel to the first electrode and also strip-shaped, which is in contact with electrode connectors; additional windows are disposed in the insulating layer and are positioned over the electrode connectors for the second electrode, or areas of the insulating layer are disposed between the electrode connectors; an encapsulation is provided that covers the insulating layer with the functional polymers and the second electrode, but leaves one end of each electrode connector exposed.

Organic, electroluminescent display and method for producing the same

A substrate with banks having end channels is provided to advantageously allow excess fluid collecting on one part of the substrate to flow to another part of the substrate. An excess of fluid collecting in a particular area of the substrate may flow to an area of the substrate where it would not interfere with the manufacturing process. The end channels may be modified with wave breakers that act as buffers to redirect excess fluid and/or with capillary-force homogeneity enhancers that pull excess fluid away from other parts of the substrate. The end channels may also contain line-end reservoirs that provide additional room for excess fluid to collect.

Ink jet bank substrates with channels

A system and method is presented for measuring the volume of an ink-jet droplet or the relative volumes of a plurality of ink-jet droplets using their electrical properties. In a preferred embodiment a single small capacitor or an array of capacitors is used to measure the dielectric properties of ink-jet droplets and the absolute drop volumes are derived. In an alternative preferred embodiment the relative differences in drop volumes are determined. A feedback circuit, such as one using lock-in technique, may be used to automatically adjust subsequent drop volumes.

Drop volume measurement and control for ink jet printing

Apparatus and procedure for the in situ measurement of quantities of polymer printed onto supports A source of radiationsends electromagnetic radiation onto a dropletof polymer solution or polymer dispersion, which is printed onto a support. A detectormeasures the transmitted or re-emitted radiation. Controlled by a comparator deviceand a control unit, the printing parameters are corrected in situ, if necessary. In this manner, a controlled adjustment of the layer thickness of organic light-emitting diodes and therefore luminosity and color perception can be achieved.

Apparatus and method for in-situ measurement of polymer quantities output from an extractor

The present invention relates to an organic, colored, electroluminescent display having the following features:

Organic, colored, electroluminescent display and the production thereof

Organic electroluminescent component for an organic light-emitting diode

Systems and methods are described for delivering droplets. One embodiment provides a system comprising nozzles adapted to deliver droplets to target points on the substrate, a first camera, and means for determining an angular rotation of the substrate in a coordinate system. In some embodiments the means for determining the angular rotation includes a second camera. The substrate has a top surface and alignment marks. The nozzles have droplet delivery openings oriented towards the substrate for delivery of the droplets. The first camera is oriented substantially towards the nozzle openings, and the second camera is oriented substantially towards the substrate top surface.

System and method for delivering droplets

Poly-siloxane material may be used to form an insulating structure in an organic light-emitting device (OLED). In addition to the insulating structure, an OLED may have an electro-luminescent organic layer separated into light-emitting elements, e.g., display pixels, arranged between electrode layers. A voltage applied across the electrode layers causes the device to emit light. One type of insulating structure may be a bank structure formed from a thin sheet of poly-siloxane with apertures corresponding to the display pixels. Pixels may be formed with the deposit of one or more layers of organic material into the apertures. Another type of insulating structure may be one or more insulating strips, which may separate an electrode layer into electrode strips during construction and/or insulate electrode strips while the OLED is in operation.

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Mannheim, Germany

Matthias Stoessel