Idemitsu Kosan Company, Limited

Sony Corporation

Universal Display Corporation

Idemitsu Kosan Co ., Ltd.

Idemitsu Kosan., Ltd.

Idemistu Kosan Co., Ltd.

Demitsu Kosan Co., Ltd.

Chishio Hosokawa

Toshihiro Iwakuma

Kenichi Fukuoka

Kazuki Nishimura

Masakazu Funahashi

Masahide Matsuura

Hisayuki Kawamura

Masahiro Kawamura

Toshinari Ogiwara

Takashi Arakane

Masaki Numata

Hidetsugu Ikeda

Hitoshi Kuma

Hisahiro Higashi

Yoriyuki Takashima

Tomoki Kato

Hiroshi Yamamoto

Mitsunori Ito

Tadashi Kusumoto

Hiroaki Nakamura

Toshio Sakai

Hiroshi Tokailin

Mineyuki Kubota

Yukitoshi Jinde

Keiko Yamamichi

Seiji Tomita

Yuichiro Kawamura

Kiyoshi Ikeda

Mitsuru Eida

Jun Endo

Hiromasa Arai

Nobuhiro Yabunouchi

Yasunori Kijima

Tetsuya Inoue

Sanae Tagami

Tadahiko Yoshinaga

Hironobu Morishita

Yoshio Hironaka

Fumio Okuda

Julia J Brown

Michael Stewart Weaver

Shigeyuki Matsunami

Takayasu Sado

Hideaki Nagashima

Hidetoshi Koga

Ryo Naraoka

Yoshikazu Tanaka

Kei Yoshida

Emiko Kambe

Hitoshi Yamamoto

Satoshi Hachiya

Brian D'Andrade

Hiroyuki Saito

Kimihiro Yuasa

Makoto Kimura

Shuji Sakamoto

Yoshiaki Aoyama

Hiroyuki Iwabuchi

Hidehiro Matsunami

Yasunori Kadoi

Atau Ioku

Hiroya Yasuda

Hiroshi Tokairin

Tadashi Kusomoto

Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a π-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.

Material for organic electroluminescence device and organic electroluminescence device using the same

Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a n-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.

An organic EL device includes a pair of electrodes and an organic compound layer between pair of electrodes. The organic compound layer includes an emitting layer including a first material and a second material. The second material is a fluorescent material. Singlet energy EgS(H) of the first material and singlet energy EgS(D) of the second material satisfy a relationship of the following formula (1). The first material satisfies a relationship of the following formula (2) in terms of a difference &#x394;ST(H) between the singlet energy EgS(H) and an energy gap Eg(H) at 77K.EgS()&#x3e;EgS()&#x2003;&#x2003;(1)&#x394;()=EgS()&#x2212;Eg()&#x3c;0.3 (eV)&#x2003;&#x2003;(2)

Organic electroluminescence device

Provided is a novel aromatic amine derivative with specified structure. Also provided is an organic electroluminescence device having one or more organic thin-film layers including at least a luminescent layer interposed between a cathode and an anode, in which at least one of the organic thin-film layers contains the above aromatic amine derivative alone or as a component of mixture. As a result, there is provided an organic electroluminescence device that has high emission luminance and high heat resistance, excelling in high-temperature storage ability and has long life, and provided an aromatic amine derivative for realizing the organic electroluminescence device.

Aromatic amine derivative and organic electroluminescence device utilizing the same

An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.

Organic electroluminescence device and organic light emitting medium

Disclosed is a light-emitting material for organic electroluminescent (EL) devices which is composed of an asymmetric anthracene derivative of a specific structure. Also disclosed are a material for organic EL devices and an organic EL device wherein an organic thin film layer composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. At least one layer composed of the organic thin film layer contains the material for organic EL devices by itself or as a component of a mixture. Consequently, the organic EL device has a high efficiency and a long life. Also disclosed are a light-emitting material for organic EL devices and material for organic devices which enable to realize such an organic EL device.

Light-emitting material for organic electroluminescent device, organic electroluminescent device using same, and material for organic electroluminescent device

An organic electroluminescence device () includes: an anode (); a cathode (); and an organic thin-film layer () interposed between the anode () and the cathode (). The organic thin-film layer () includes a phosphorescent-emitting layer () containing a host and a phosphorescent dopant. The host contains a first host and a second host. The first host includes a substituted or unsubstituted polycyclic fused aromatic skeleton, the skeleton having 10 to 30 ring-forming atoms not including an atom of a substituent. The second host has an affinity level greater than the affinity level of the first host.

Organic el element and solution containing organic el material

Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a &#x3c0;-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.

An organic electroluminescence device including at least an anode, an emitting layer, an electron-transporting region and a cathode in sequential order, wherein the emitting layer contains a host and a dopant which gives fluorescent emission of which the main peak wavelength is 550 nm or less; the affinity Ad of the dopant is equal to or larger than the affinity Ah of the host; the triplet energy Eof the dopant is larger than the triplet energy Eof the host; and a blocking layer is provided within the electron-transporting region such that it is adjacent to the emitting layer, and the triplet energy Eof the blocking layer is larger than E.

Organic electroluminescent device

Growing community of inventors

Sodegaura, Japan

Chishio Hosokawa