Udc Ireland Limited

Fujifilm Corporation

Saki Takada

Toshihiro Ise

Koji Takaku

Tetsu Kitamura

Wataru Sotoyama

Yasunori Yonekuta

Toru Watanabe

Yosuke Yamamoto

Hiroo Takizawa

Kousuke Watanabe

Eiji Fukuzaki

Yuichiro Itai

Takeshi Murakami

Kimiatsu Nomura

Kazunari M Yagi

Akira Takeda

Ikuo Kinoshita

Masaru Kinoshita

Naoyuki Hayashi

Ryo Nishio

Katsuyuki Youfu

Tetsuro Otsuka

Wataru Toyama

An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which the organic layer includes a compound represented by the following general formula, has high luminous efficiency, excellent blue color purity, and a small change in the chromaticity due to deterioration by driving (Cy represents a fused aromatic ring structure having the number of constituent rings of 3 or more, and has Dnand Acas different constituent rings, and each of the constituent rings are all hydrocarbon rings. Dnrepresents NR, an O atom, or an S atom. Acrepresents an electron absorbing substituent, an aryl group having an electron absorbing substituent, or an electron deficient heteroaryl group. The ring Zrepresents an arylene group or a heteroarylene group. L, Land Lrepresent specific linking groups. u1 represents 0 or 1, and in the case where u1 is 1, the ring thus formed is not an aromatic ring. n1 and q1 represent 0 or 1, and in the case where any one of n1 and q1 is 0 and n1 or q1 is 1, the rings thus formed are not all aromatic rings. When Acis a pyridine ring, at least one of n1 and q1 is 1.)

Organic electric light emitting element, material for said element, and light emitting device, display device, and illumination device employing said element

An organic electroluminescent element which has a substrate, a pair of electrodes disposed on this substrate and composed of an anode and a cathode, and at least one organic layer disposed between these electrodes and including a light-emitting layer, and in which a compound expressed by General Formula 1-1 is contained in at least one layer of the aforementioned light-emitting layer(s) exhibits high luminous efficiency, excellent blue color purity, and little change in chromaticity accompanying drive deterioration. (Rto R[each] represent a hydrogen atom or a substituent, and at least one of Rto Ris a substituent expressed by General Formula 1-2; however, a pyrene skeleton is never contained in Rto R; the asterisk indicates the bonding position with a pyrene ring; Xto X[each] represent a carbon atom or a nitrogen atom, and at least one of Xto Xis a nitrogen atom; Rto R[each] represent a hydrogen atom or a substituent, and at least one of Rto Ris an alkyl group or a silyl group; however, if Xto Xrepresent nitrogen atoms, there is no Rto Rbonded on these nitrogen atoms.)

Electroluminescent element, and light emitting device, display device and lighting device each using organic electroluminescent element

The present invention relates to an electroluminescence device having high luminous efficiency (for example, external quantum efficiency) and high durability and causing little chromaticity shift after device deterioration. The present invention also relates to an organic electroluminescence device material comprising a substrate having thereon a pair of electrode and at least one organic layer between the electrodes, the organic layer containing a light emitting layer, wherein the light emitting layer contains a metal complex having a group represented by formula (I).

Organic electroluminescence device

An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula is contained in any layer of the at least one organic layer, is an organic electroluminescent element, in which the generation of dark spots during driving is inhibited:

Organic electroluminescent element, compound, and light emitting device, display device and lighting system, using said element

An organic electroluminescent element comprising a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein the light emitting layer includes a compound represented by the following general formula: 

Organic electroluminescent device; a charge transporting material for the organic electroluminescent device; and a luminescent device, a display device and a lighting system using the organic electroluminescent device

An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which the organic layer includes a compound represented by the following general formula (1), has high luminous efficiency, excellent blue color purity, and a small change in the chromaticity due to deterioration by driving, wherein Cy, Dn, Ac, L, L, L, ring Z, u1, q1, n1, m1, A, and Aare as defined herein. 

The present invention relates to an electroluminescence device having high luminous efficiency (for example, external quantum efficiency) and high durability and causing little chromaticity shift after device deterioration. The present invention also relates to an organic electroluminescence device material comprising a substrate having thereon a pair of electrodes and at least one organic layer between the electrodes, the organic layer containing a light emitting layer, wherein the light emitting layer contains a metal complex having a group represented by formula (I). 

An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula is contained in any layer of the at least one organic layer, is an organic electroluminescent element, in which the generation of dark spots during driving is inhibited: wherein Q, Ar, L, and n are as defined in the application.

An organic electroluminescent element that uses a compound expressed by the following general formula emits dark blue light and exhibits little change in chromaticity during brightness modulation. (n1 is an integer from 0 to 8; the R[groups] are each independently a substituent substituted for a hydrogen atom of the pyrene skeleton; X is CRR(Rand Rare each independently a hydrogen atom or a substituent), O, S, or SiRR(Rand Rare each independently a hydrogen atom or a substituent); and Ato Arepresent each independently either N or CR(Rrepresents a hydrogen atom or a substituent, and two adjacent R[groups] may jointly form a saturated or unsaturated ring, but no more than two rings may be formed jointly by two or more of the R[groups]).)

Organic electric-field light-emitting element, light-emitting material for organic electric-field light-emitting element, and light-emitting device, display device, and illumination device using same element

An organic electroluminescent element comprising a substrate; a pair of electrodes including an anode and a cathode, disposed on the substrate; and at least one organic layer including a light emitting layer, disposed between the electrodes, wherein the light emitting layer includes a compound represented by the following general formula:  wherein: R, R, and R; Rto R; Ato Aare as defined in the specification.

An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which a compound represented by the following formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has high luminous efficiency and a strong effect of improving the durability by driving aging: wherein X, A, A, A, A, and Rto Rare as defined herein.

Organic electroluminescent element, material for organic electroluminescent element, and light emitting device, display device and lighting device each using organic electroluminscent element

An organic electroluminescent element using a compound represented by the following general formula (I) emits dark blue light and has small changes in the chromaticity and in the driving voltage even after driving for a long period of time: wherein Rto R; Qand Q; X, X, Xand Xare as defined herein.

Organic electroluminescent element, compound for organic electroluminescent element, and light-emitting device, display device, and illumination device using said element

An organic electroluminescent element using a compound represented by the following general formula emits dark blue light and has a small change in the chromaticity during luminance modulation: wherein each of Rto Rrepresents a hydrogen atom or a substituent; Ato Arepresent CRor N; L and X each independently represent any one of CRR, NR, O, S, and SiRR; and each of Rto Rrepresents a hydrogen atom or a substituent.

Organic electroluminescent element, light-emitting material for organic electroluminescent element, and light-emitting device, display device, and illumination device using said element

An organic electroluminescent element using a compound represented by the following general formula (I) emits dark blue light and has a high effect of inhibition of voltage during high-luminance driving: 

An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes. At least one kind of a compound represented by the following general formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has good luminous efficiency, driving voltage, and driving durability, and has low dependence of such performance on a deposition rate. Wherein: Lto L, nto n, A, A, A, Aand, R are as defined in the application.

Organic electroluminescent element, compound, and light emitting device, display device and lighting device each using organic electroluminescent element

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Kanagawa, Japan

Saki Takada