Seiko Epson Corporation

Merck Patent Gmbh

Universal Display Corporation

Masahiro Uchida

Takuya Sonoyama

Osamu Yokoyama

Shotaro Watanabe

Koji Imamura

Shunichi Seki

Tatsuaki Funamoto

Shuichi Takei

Chuanjun Xia

Anja Gerhard

Hayato Nakanishi

Kwang-Ohk Cheon

Kohei Ishida

Toru Nimura

Volker Hilarius

Edgar Boehm

Takumi Sago

Hideyuki Kimura

Dietmar Kunkel

Michael Inbasekaran

Masashi Goto

Masaki Ito

Kwong-Ohk Cheon

The present invention relates to formulations comprising at least one organic semiconductor and at least one organic solvent, characterized in that the formulation contains less than 10,000 particles per liter formulation having an average size in the range from 0.1 to 20 &#x3bc;m, to their use for the preparation of electronic devices, to methods for preparing electronic devices using the formulations of the present invention, and to electronic devices prepared from such methods and formulations.

Formulations with a low particle content

An ink for forming a functional layer, which is used when any thin film layer among functional layers consisting of a plurality of thin film layers is formed, includes a functional layer forming material and a solvent for dissolving the functional layer forming material, and in which the number of particles of 0.5 &#x3bc;m or more is 7 or less in 10 ml of the ink for forming a functional layer.

Ink for forming functional layer, method of manufacturing ink for forming functional layer, and method of manufacturing organic electro-luminescence element

A light-emitting element includes an anode, a cathode, a hole transporting layer provided between the anode and cathode, a light-emitting layer provided in contact with the hole transporting layer between the anode and cathode, where the surface of the light-emitting layer side of the hole transporting layer is formed in a shape having a part in which the distance with the reference surface along the anode changes in a continuous or step-wise manner, and the surface of the opposite side to the hole transporting layer of the light-emitting layer is formed so as to have the same shape as the surface of the light-emitting layer of the hole transporting layer.

Light emitting element with improved layer thickness uniformity

An organic EL element manufacturing method includes coating ink which contains a functional layer forming material in a coating region which is configured by a pixel electrode and a partition wall which surrounds a periphery of the pixel electrode, where, in the coating ink, the ink is coated so as to satisfy the following expressions (1) to (3) in a case where a contact angle of the ink with respect to the side surface of the partition wall is set to &#x3b8;bc and a contact angle with respect to a surface of the coating region where the ink is coated is set to &#x3b8;lc.&#x3b8;bc&#x2266;&#x3b8;lc &#x2003;&#x2003;(1)&#x3b8;bc&#x2266;5&#xb0;&#x2003;&#x2003;(2)&#x3b8;lc&#x2266;20&#xb0;&#x2003;&#x2003;(3)

Organic EL element manufacturing method, organic EL apparatus, and electronic equipment

In a method for manufacturing an organic EL device, a first luminescent layer emitting first color light is formed over a first anode disposed on a substrate by coating. A second luminescent layer emitting second color light is formed over a second anode disposed on the substrate. An intermediate layer having electron injection performance is formed on the first luminescent layer and the second luminescent layer. A third luminescent layer emitting third color light is formed over the intermediate layer and a third anode disposed on the substrate by vapor deposition. A cathode is formed on the third luminescent layer.

Organic el device manufacturing method, organic el device, and electronic apparatus having a luminescent layer disposed over another luminescent layer

An organic electroluminescent device includes a pair of electrodes, and a first organic layer and a second organic layer in contact with each other formed between the electrodes by a wet process. The first organic layer contains a crosslinkable organic material and includes a crosslinked layer formed by crosslinking the crosslinkable organic material at least at the interface with the second organic layer.

Organic electroluminescent device, method for manufacturing the organic electroluminescent device, and electronic apparatus

An organic EL device includes an organic EL element that includes an anode having a reflective face, a cathode having a semi-transmissive reflective layer, and a functional layer, which is pinched between the anode and the cathode and includes at least an organic light emitting layer, and configures a color pixel that implements light emission corresponding to at least a red color. The color pixel configured by the organic EL element forms an optical resonator between the reflective face of the anode and the semi-transmissive reflective layer of the cathode. The color pixel corresponding to the red color has a film thickness profile of the functional layer in a convex shape in which a center portion is relatively thick, and a periphery portion is relatively thin or a concave shape in which the center portion is relatively thin, and the periphery portion is relatively thick.

Organic EL device and electronic apparatus

An organic EL device includes a first organic EL element and a second organic EL element on an underlying layer that includes a first drive circuit unit for driving the first organic EL element and a second drive circuit unit for driving the second organic EL element. The organic EL device includes a partition on the underlying layer defining a first region including a first light-emitting layer of the first organic EL element and a second region including a second light-emitting layer of the second organic EL element. The partition defines the first film-forming region such that the first film-forming region includes the first drive circuit unit and the second film-forming region such that the second film-forming region does not include at least part of the second drive circuit unit. The first light-emitting layer is formed by a different method from that used for the second light-emitting layer.

Organic EL device, method for manufacturing organic EL device, and electronic device

An organic electroluminescent device includes partition walls dividing a region into a first region, a second region and a third region, a first organic layer disposed in the first region, a second organic layer disposed in the second region, and a third organic layer disposed in the third region. The first region includes a plurality of effective pixels involved in light emission, continuously disposed along a first aligning axis. Each effective pixel includes an effective pixel electrode, a common electrode, and the first organic layer between the effective pixel electrode and the common electrode. The second region and the third region oppose each other with the first region therebetween, and the first region, the second region and the third region are aligned along the first aligning axis.

Method for manufacturing organic electroluminescent device and organic electroluminescent device

A method of forming an organic layer by using a liquid composition comprising a small molecule organic semiconductor material mixed in a ketone solvent. The liquid composition is deposited on a surface to form the organic layer. The ketone solvent may be an aromatic ketone solvent, such as a tetralone solvent. The organic semiconductor material may be cross-linkable to provide a cross-linked organic layer. The method can be used to make organic electronic devices, such as organic light emitting devices. In another aspect, the liquid composition comprises a small molecule organic semiconductor material mixed in an aromatic ether solvent. Also, provided are liquid compositions which can be used to make organic layers.

Liquid compositions for inkjet printing of organic layers or other uses

An organic electroluminescent device includes: a substrate; an organic layer that is capable of emitting light; and partition walls that surround pixel regions provided on the substrate. In the organic electroluminescent device, the organic layer is formed so as to continue to the pixel regions surrounded by the partition walls and the upper surface of the partition walls. When the height of the partition walls is set to Hand the thickness of the organic layer in the pixel regions is set to H, the height Hof the partition walls is set to be equal to or smaller than two times the thickness H.

Organic electroluminescent device having uniform organic layer, and method of manufacturing the same

A method for producing an organic electroluminescent device includes forming a first electrode configured to partially cover a substrate, forming an organic light-emitting layer configured to cover the first electrode, forming an optically transparent second electrode that lies on a side of the organic light-emitting layer opposite the side adjacent to the first electrode and is superposed on a current-carrying portion of the first electrode in plan, forming a third electrode in at least part of a region that is not superposed on the current-carrying portion in plan, the third electrode being electrically connected to part of the second electrode, forming an optically transparent protective layer configured to cover at least a region of the second electrode where the second electrode is not superposed on the third electrode in plan, and removing part of the organic light-emitting layer with the third electrode and the protective layer serving as a mask.

Organic electroluminescent device, method for producing organic electroluminescent device, and electronic apparatus

A top emission-type organic EL device includes a first electrode formed on a substrate, an organic function layer formed on the first electrode, and a second electrode formed on the organic function layer, wherein light generated from the organic function layer is extracted from the second electrode side, and wherein a light shielding layer covering a part of the second electrode is formed on the second electrode.

Organic EL device, line head, and electronic apparatus with light shield

Provided is a line head module including line heads on which a plurality of light emission elements are arrayed and exposing a photosensitive body by the light from the light emission elements, including: a support having a rotation axis parallel to the photosensitive body; and the plurality of line heads which are provided on the peripheral surfaces of the support and switched with respect to the photosensitive body by rotating the support about the rotation axis.

Growing community of inventors

Chino, Japan

Masahiro Uchida