Canon Kabushiki Kaisha

Itaru Takaya

Jun Kamatani

Hirokazu Miyashita

Takayuki Ito

Naoki Yamada

Harunobu Ogaki

Satoru Shiobara

Takakazu Tanaka

Nobuhiko Sato

Masataka Kawahara

Yuka Ishiduka

Tomoyuki Hiroki

Norifumi Kajimoto

Koji Ishizuya

Taro Endo

Koichi Ishige

Tetsuo Takahashi

Hiroaki Sano

Kenichi Kaku

Takeshi Ikeda

Akira Yoshida

Kazuo Yoshinaga

Yosuke Nishide

Hironobu Iwawaki

Hiroki Ohrui

Tomokazu Kotake

Toshihide Kimura

Yuko Sato

Katsumi Aoki

Minako Nakasu

Tomona Yamaguchi

Isao Kawata

Yuto Ito

Keiko Hiraoka

Haruna Iida

Moe Takahira

An organic EL device includes at least an anode, a first light-emitting layer, an intermediate layer, a second light-emitting layer, and a cathode in this order. The intermediate layer is adjacent to the first light-emitting layer and the second light-emitting layer. The first light-emitting layer and the second light-emitting layer can trap electrons. A material constituting the intermediate layer is a hydrocarbon that has a HOMO level equal to or lower than the HOMO level of a host of the first light-emitting layer and that has a high Slevel.

Organic EL device as well as display apparatus, image pickup apparatus, communication apparatus, lighting apparatus, luminaire, and moving body each including the same

An organic light emitting device including, in sequence, a first electrode, a first charge transport layer, a second charge transport layer in contact with the first charge transport layer, a light emitting layer in contact with the second charge transport layer, and a second electrode, wherein the first charge transport layer includes a first material and a second material, the second charge transport layer includes the second material and a third material, and the light emitting layer includes the third material and a fourth material.

Organic light emitting device, and display apparatus, photoelectric conversion apparatus, electronic apparatus, illumination apparatus, and moving object including the same

An organic EL element characterized by including a first electrode, a second electrode, and a first light-emitting layer, a second light-emitting layer, and a third light-emitting layer that are disposed between the first electrode and the second electrode, the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer each containing a host material and a light-emitting material, in which the first light-emitting layer is a light-emitting layer that emits red light and green light, the second light-emitting layer is a light-emitting layer that emits blue light, and the third light-emitting layer is a light-emitting layer that emits green light.

Organic EL element, and display apparatus, illumination apparatus, and moving object including the same

A light-emitting device includes a plurality of organic EL elements. Each of the organic EL elements includes a reflection electrode, a hole transport region, an electron-trapping luminescent layer, and a light extraction electrode in this order. The hole transport region has a sheet resistance of 4.0&#xd7;10&#x3a9;/sq.&#x22c5; or more at a current of 0.1 nA/pixel, and the total thickness of the hole transport region and the electron-trapping luminescent layer is equivalent to an optical path length enabling emission from the electron-trapping luminescent layer to be enhanced.

Light-emitting device including a plurality of organic electroluminescent elements

An organic light emitting element includes, in sequence, an anode, a first light emitting layer, a second light emitting layer, and a cathode. The first light emitting layer includes a first compound and a first light emitting material. The second light emitting layer includes a second compound and a second light emitting material having an energy gap different from an energy gap of the first light emitting material. The organic light emitting element satisfies relations (a) to (c).LUMO(1)&#x3e;LUMO(1)&#x2003;&#x2003;(a)LUMO(2)&#x3e;LUMO(2)&#x2003;&#x2003;(b)LUMO(2)&#x2212;LUMO(2)&#x3e;LUMO(1)&#x2212;LUMO(1)&#x2003;&#x2003;(c)Where LUMO (H1), LUMO (D1), LUMO (H2), and LUMO (D2) represent a LUMO level of the first compound, a LUMO level of the first light emitting material, a LUMO level of the second compound, and a LUMO level of the second light emitting material, respectively.

Organic light emitting element, comprising at least first and second light emitting layers with satisfying lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) relations

A white organic electroluminescent (EL) element including an anode, a cathode, and a light-emitting layer disposed between the anode and the cathode. The light-emitting layer includes a first light-emitting layer and a second light-emitting layer. The first light-emitting layer and the second light-emitting layer each contain a host material and a light-emitting dopant material. The first light-emitting layer contains, as the light-emitting dopant material, a green-light-emitting dopant material and a blue-light-emitting dopant material and is a dual-color light-emitting layer that emits green light and blue light. The second light-emitting layer contains, as the light-emitting dopant material, a red-light-emitting dopant material and a green-light-emitting dopant material and is a dual-color light-emitting layer that emits red light and green light.

While organic EL element

A light-emitting device includes a plurality of organic EL elements. Each of the organic EL elements includes a reflection electrode, a hole transport region, an electron-trapping luminescent layer, and a light extraction electrode in this order. The hole transport region has a sheet resistance of 4.0&#xd7;10&#x3a9;/sq. or more at a current of 0.1 nA/pixel, and the total thickness of the hole transport region and the electron-trapping luminescent layer is equivalent to an optical path length enabling emission from the electron-trapping luminescent layer to be enhanced.

An organic EL element includes a first electrode, a first luminescent layer, a second luminescent layer, a third luminescent layer, and a second electrode, in this order. The second luminescent layer is in contact with the first luminescent layer and the third luminescent layer. The first luminescent layer contains a red dopant and a first host material. The second luminescent layer contains a blue dopant and a second host material, and the third luminescent layer contains a green dopant and the second host material. The second host material is different from the first host material.

Organic el element, and display device, imaging apparatus, lighting device, and movable body including the same

A white organic electroluminescent (EL) element includes, in sequence, an anode, a first light-emitting layer that is a blue-light-emitting layer, a hole-blocking layer, an electron transport layer, and a cathode. The hole-blocking layer is adjacent to the first light-emitting layer and the electron transport layer and formed of a hydrocarbon. The electron transport layer is formed of a nitrogen-containing heterocyclic compound. The first light-emitting layer contains a first host and a first dopant that emits blue fluorescent light. Relations (a), (b), and (c) are satisfied.LUMO(1)&#x3e;LUMO(1)&#x2003;&#x2003;(a)0.1&#x3c;(ETL)/(HBL)&#x3c;0.7&#x2003;&#x2003;(b)90 nm&#x2264;()=(HBL)+(ETL)&#x3c;150 nm&#x2003;&#x2003;(c)

White organic EL element

An organic EL device includes a substrate, a reflection electrode, an organic compound layer and a light extraction electrode in this order. The organic compound layer includes a first light-emitting layer which is electron trapping type light-emitting layer and a second light-emitting layer disposed between the reflection electrode and the first light-emitting layer. An optical distance between the reflection electrode and the first light-emitting layer is a distance of constructive interference for the light of the first light-emitting layer.

Organic EL device, and display apparatus and lighting apparatus using the same

An organic light-emitting device is provided that is driven with a low voltage and has a high luminous efficiency and a long device lifetime. The organic light-emitting device includes an anode, a cathode, a light-emitting layer disposed between the anode and the cathode, and an organic compound layer disposed between the cathode and the light-emitting layer and being in contact with the cathode. The organic compound layer includes a complex represented by Formula [1]: 

Organic light-emitting device, display apparatus, image display apparatus, lighting apparatus, image formation apparatus, and exposure apparatus

Provided is a method of manufacturing an organic electroluminescence display device including an organic electroluminescence element, which has element characteristics comparable to those in the case of a vacuum in-situ process, while utilizing a patterning approach based on photolithography. The method of manufacturing an organic electroluminescence display device includes: an organic compound layer-forming step of forming an organic compound layer at least on a first electrode; a release layer-forming step of forming a release layer on the organic compound layer; a release layer-processing step of processing the release layer; and an organic compound layer-processing step of removing the organic compound layer in a region not covered with the release layer processed in the release layer-processing step, and at least the lowermost layer out of the release layer is a deposited film formed of a material soluble in a polar solvent.

Method of manufacturing organic electroluminescence display device and electronic equipment including organic electroluminescence display device manufactured by the manufacturing method

A first light-emitting layer of a first organic electroluminescent element is disposed in common to a second organic electroluminescent element, a second light-emitting layer of the second organic electroluminescent element is disposed in contact with the first light-emitting layer and in the cathode side, and the first light-emitting layer is a light-emitting layer having an electron trapping property.

Display apparatus and image pickup apparatus

A method of manufacturing an organic electroluminescence display device includes an organic compound layer which is placed between a pair of electrodes and includes at least an emission layer, the organic compound layer being two-dimensionally arranged, includes forming the organic compound layer which is insoluble in water in an entire emission region on a substrate, providing a mask layer containing a water-soluble material in at least a part of a region on the organic compound layer, removing a part of the organic compound layer which is provided in a region which is other than the region in which the mask layer is provided, removing the mask layer, and forming, after the removing of the mask layer, a layer containing at least an alkali metal or an alkaline-earth metal in a region including at least the emission region.

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Atsugi, Japan

Itaru Takaya