cas 728039-63-2, Bisbiphenyl-4-yl-(4'-broMo-biphenyl-4-yl)-aMine

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Effect of arylamino-carbazole containing hole transport materials on the device performance and lifetime of OLED
We synthesized four hyper-conjugated aromatic hole transporting materials with different molecular geometry and energy levels by attaching arylamino moiety attached to the carbazole core. A brominated carbazole moiety reacted with an arylamino moiety using a Buchwald-Hartwig reaction. The characteristics of these hole transporting materials were investigated using TGA, DSC, UV–Vis and luminescence spectroscopy. The energy levels of all materials used in this study were estimated from cyclic voltammograms and absorption spectra. The hole transporting properties of the synthesized molecules were measured using single-carrier devices. All four hole transporting materials showed similar hole mobility. The effectiveness of hole transporting materials was compared by fabricating green-emitting organic light emitting diode (OLED) devices. It turned out that the device performances were critically dependent on the relative energy levels of the hole transporting layer and emission layer. However, the molecular geometry greatly influenced the device lifetime, determining thermally induced crystallization by the heat produced during device operation.
Joung, Kuk Soung,Kim, Kyu Sung,Kim, Seung Uk,Tak, So Hyun,Yu, Jae-Woong
(2021/11/16)

COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
The present invention relates to a compound for an organic electronic element, an organic electronic element using the same, and an electronic device thereof and, more specifically, to a novel compound comprising O atom heterocycles capable of improving luminous efficiency, stability, and service life of an element, an organic electronic element using the same, and an electronic device thereof.
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Paragraph 0187; 0192-0194

(2019/12/31)

Aromatic amine compound containing carbazole group and organic light emitting diode thereof
The invention discloses an aromatic amine compound containing a carbazole group and an organic light emitting diode thereof, and relates to the technical field of organic photoelectric materials. Thearomatic amine compound structurally contains the specific carbazole group, on one hand, the carbazole group has a high triplet state energy level and a high hole mobility, on the other hand, the carbazole group has a relatively high redox potential value and has good stability under the condition of air or illumination, in addition, four hydrogen bonds of a phenyl group on a N site of the substituted carbazole group are replaced by four deuterium bonds, deuterium is non-toxic and non-radioactive and is 6-9 times more stable than a carbon-hydrogen bond, and therefore the compound with more stable property is obtained; in addition, by means of the carbazole and ortho-position connected biphenyl, conjugating of the structure is extended, and the hole transmission is facilitated; and the obtained aromatic amine compound is used as a hole-transport material or an optical extraction layer material in the organic light emitting diode and has the advantages of being high in efficiency, high in brightness and long in service life.
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Paragraph 0051; 0052; 0053; 0054

(2019/02/21)

Triarylamine derivative, preparation method, application and device thereof
Belonging to the technical field of photoelectric material applied science and technology, the invention in particular relates to a triarylamine derivative, a preparation method and application thereof. The triarylamine derivative provided by the invention adopts triarylamine and fluorenocarbazole as the basic structural unit, and after modification, an asymmetric structure can be obtained so as to compose compounds rich in holes and with high glass transition temperature. When the compounds are used as a hole transport material, compared with the commonly used hole transport material like N,N'-diphenyl-N, N'-bis(3-methylphenyl)-1, 1'-biphenyl-4, 4'-diamine (TPD) in the prior art, the hole transport ability is significantly improved, in OLEDs, the series of compounds have significantly improved starting voltage and glass transition temperature compared with the traditional hole transport materials, and are ideal hole transport materials. In addition, when the series of compounds are used as a light-emitting layer, the efficiency of OLEDs is greatly improved, and the series of compounds are ideal light-emitting layer materials.
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Paragraph 0164-0167

(2019/10/02)

Arylamine-based compound and organic light emitting diode comprising the same
An arylamine-based compound is represented by Formula 1 below. The arylamine-based compound is included in an organic light emitting diode.
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(2018/05/16)

ORGANIC COMPOUND AND ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE USING THE SAME
The present invention relates to an organic compound in which two amine groups are connected by biphenylene, and one or two substituents having a silyl group is or are connected to nitrogen atoms forming the amine groups. According to the present invention, the organic compound is excellent in hole injection properties, hole transport properties and/or electron blocking properties by comprising the amine groups. Further, the organic compound has improved light emitting efficiency compared to the case in which the substituent which does not have the silyl group, or has two or more silyl groups is connected to the nitrogen atoms. Therefore, when the organic compound of the present invention is applied to a hole layer, an electron blocking layer and/or a charge generation layer of an organic light emitting diode, light emitting efficiency is improved, and current density can be reduced. Accordingly, light emitting efficiency of the organic light emitting diode, to which the organic compound of the present invention is applied, can be greatly improved.COPYRIGHT KIPO 2018
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(2018/09/02)

Nitrogenous heterocyclic ring derivative and organic light emitting device thereof
The invention provides a nitrogenous heterocyclic ring derivative and an organic light emitting device thereof, and relates to the technical field of organic photoelectric materials. On one hand, acridine is a macrocyclic conjugated system with a rigid plane structure, the rigid molecular skeleton of the macrocyclic conjugated system is favorable for improving the light and heat stability and thefluorescence quantum efficiency of the material, and meanwhile, the larger pi conjugated system can be used for improving the carrier injection and transmission property of the module. On the other hand, an acridine ring structure and a biphenyl structure generally form a p-pi large conjugation state through a nitrogen atom link, a large conjugate ring electron containing ability is enhanced, thenitrogen atom has a higher electron giving ability, a cavity can be more easily subjected to oxidation formation to display positive electricity, and therefore, the nitrogenous heterocyclic ring derivative has a high cavity migration rate. The organic light emitting device prepared by taking the structure as a cavity transmission material has the advantages of high light emitting efficiency and low driving voltage.
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Paragraph 0081-0084

(2018/07/30)

Heterocyclic compounds and organic electroluminescence devices thereof
The invention provides heterocyclic compounds and organic electroluminescence devices thereof, and belongs to the technical field of organic electroluminescence materials. Amine type groups are introduced to specific positions of a naphthalene ring, thus properly adjusting the hole mobility and achieving an objective of balancing the hole mobility and carrier mobility. An exciton composition zoneis completely in a luminescence layer. A triarylamine structure is connected to an amine group on one side of the heterocyclic compounds to increase hole transporting capability. In addition, a carbonatom is provided with two substitute groups, making structures of the compounds similar to the structure of spirofluorene, thus ensuring that the compounds have higher glass transition temperatures.A technical problem that organic electroluminescence materials in the prior art have poor luminescence properties such as low luminescence efficiency and short service lifetime is solved. Compared with the prior art, the organic electroluminescence devices based on organic electroluminescence materials and ink compositions have improved luminescence properties and the compounds are excellent OLEDmaterials.
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Paragraph 0101-0104

(2018/12/01)

A heterocyclic compound and its organic light-emitting device (by machine translation)
The present invention provides a heterocyclic compound and its organic light-emitting device, which belongs to the technical field of organic photoelectric material. In particular in the specific position of the naphthalene ring is introduced on the amide group, thus can be appropriate adjusting hole mobility, reach the hole mobility and balance the purpose of carrier mobility. The exciton consistent with the regional totally in the luminescent layer. Heterocyclic compounds at one side of the amide group on the amine structure connected, increase its hole transmission ability. At the same time a relatively large molecule volume and molecular weight it ensures that this material has higher glass transition temperature. In the prior art can be effectively solve the organic photoelectric material luminous efficiency is low, the driving voltage is relatively high, and short service life of the technical problem of poor performance of the. Compared with the prior art, the invention is based on organic electroluminescent material and ink composition of the organic light-emitting device, can significantly improve the luminescence, is an excellent OLED material. (by machine translation)
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Paragraph 0061; 0062; 0063

(2019/01/05)

Arylamine derivative and organic electroluminescent device thereof
The invention provides an arylamine derivative and an organic electroluminescent device thereof and relates to the technical field of organic photoelectric materials. The arylamine derivative has theadvantages of simple preparation method, easily obtained raw materials, very good stability, very good film-forming property and good hole transporting ability; and meanwhile, the arylamine derivativehas an appropriate highest occupied molecular orbital energy level (HOMO) and a first triplet energy level (T1) value and can be applied to the OLED device as a luminescence assisting layer to realize balance of charges in a luminescent layer and prevent exciton from diffusing to one side of a hole transporting layer. Therefore, the arylamine derivative provided by the invention is applied to theOLED device as the hole transporting layer and the luminescence assisting layer and has the advantages that the luminescence efficiency of the device can be obviously enhanced, the color purity of the device can be obviously enhanced, the service life of the device can be effectively prolonged, the driving voltage of the device can also be effectively reduced, and the arylamine derivative is an OLED material with excellent performance.
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Paragraph 0091-0094

(2018/11/27)

The organic electroluminescent element using the compound and an organic electroluminescent element
PROBLEM TO BE SOLVED: To provide a compound for an organic electroluminescent element capable of sufficiently reducing drive voltage and suppressing electrical power consumption when used as a constituent material of an organic electroluminescent element, and an organic electroluminescent element using this compound.SOLUTION: A compound for an organic electroluminescent element is represented by the general formula (1). [In the formula, Rrepresents a hydrogen atom, an alkyl group which may have a substituent, an aryl group which may have a substituent, an aralkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryloxy group which may have a substituent, an aromatic heterocyclic group which may have a substituent, or a divalent group generated in that plurally existing Rare bonded to each other. a is an integer of 0 to 4 and b is an integer of 1 to 3. At least one of Arto Aris represented by the general formula (2) or (3).]
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Paragraph 0133-0135

(2018/09/20)

A doping material and its organic electroluminescent device (by machine translation)
The invention discloses a doping material and its organic electroluminescent light emitting device, relates to organic photoelectric material technical field. The advantage of this invention is, of structural formula I of the present invention shown in nature with good electron acceptor dopant and the structural formula II shown with good electron donor nature of the doping material matrix materials is completed at a relatively low doping concentration has a higher hole mobility, high conductivity, and has better thermal stability and solubility, beneficial material into a film. The invention of the organic electroluminescent device includes a cathode, anode and one or a plurality of the organic material layer, the organic material layer is located between the anode and the cathode, the organic material layer in the at least one layer contains a dopant material of the present invention, the invention of the organic electroluminescent device has a lower driving voltage, high luminous efficiency and the luminous brightness, and has a long service life. (by machine translation)
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Paragraph 0129; 0130

(2018/08/28)

Benzidine derivative and organic light-emitting diode thereof
The invention discloses a benzidine derivative and an organic light-emitting diode thereof and relates to the technical field of organic optoelectronic materials. Aromatic amine nitrogen atoms on thebenzidine derivative disclosed by the invention contain lone pair electrons and show good electropositivity; the benzidine derivative disclosed by the invention has a larger conjugation system, thereby having higher hole mobility and showing better hole transport performance. In addition, a substituted group with large volume is also introduced into the benzidine derivative disclosed by the invention, so that the glass temperature and thermal stability of a material are effectively improved, and the material film formation is facilitated. The organic light-emitting diode comprises an anode, acathode and one or more organic matter layers; the organic matter layers are positioned between the anode and the cathode; at least one of the organic matter layers contains the benzidine derivative disclosed by the invention. The organic light-emitting diode disclosed by the invention has lower drive voltage, higher luminous efficiency and luminous brightness and longer service life.
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Paragraph 0080-0082

(2018/11/27)

2,6-bis(diarylaminophenyl)benzene and derivatives thereof as hole-transport compounds in organic light-emitting devices
Compounds according to Formulas 1-33 may be useful in electronic devices such as light-emitting devices. For example, they may be used as hole-transport materials.
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Page/Page column 67; 68; 69; 70; 71

(2017/03/14)

Pyridine diindyl compound and organic light emitting device thereof
The invention discloses a pyridine diindyl compound and an organic light emitting device thereof. A general formula of a pyridine diindyl derivative is shown in the description, wherein L is selected from substituted or unsubstituted C6-C60 aryl, C5-C60 condensed ring radicals and heterocyclic radicals; R1 and R2 are selected from hydrogen atoms, substituted or unsubstituted C1-C30 alkyl, substituted or unsubstituted C1-C60 alkoxy, substituted or unsubstituted C6-C60 aryl, substituted or unsubstituted C5-C60 heterocyclic radicals, and condensed ring radicals; X1 to X4 are selected from nitrogen or carbon. The device prepared by the pyridine diindyl derivative has higher light emitting efficiency.
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Paragraph 0068; 0069; 0070

(2017/10/22)

Pyridoindolium compound and organic light-emitting device thereof
The invention discloses a pyridoindolium compound and an organic light-emitting device thereof. The pyridoindolium compound improves the hole moving degree by adjusting R1 to R2 and Ar1, Ar2 and L groups of an asymmetric pyridoindolium structure. The improvement of group variety can improve the performance of the device. The device manufactured through the novel pyridoindolium compound has the characteristics of high brightness, excellent heat resistance, long service life and high efficiency.
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Paragraph 0066; 0067; 0068

(2017/10/25)

Novel acridine compound and organic light-emitting devices thereof
The invention provides a novel acridine compound and organic light-emitting devices thereof, belongs to the technical field of organic photoelectric materials, and aims to solve the technical problems of low light-emitting efficiency, high driving voltage, short service life and low light-emitting performance of the organic photoelectric material in the prior art. Compared with the prior art, the light-emitting performance of the organic light-emitting devices based on organic electroluminescence device compounds and ink compositions can be obviously improved; the novel acridine compound is used as an excellent OLED material.
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Paragraph 0089; 0090; 0091

(2017/10/23)

BLUE FLUORESCENT HOST MATERIALS, AND ORGANIC THIN FILM AND ORGANIC LIGHT EMITTING DEVICES COMPRISING THE SAME
The present invention provides an organic compound represented by chemical formula 1, and an organic electroluminescent device comprising the same. The present invention comprises a blue fluorescent host material, thereby providing the organic electroluminescent device having improved driving voltage, light-emitting efficiency, and light-emitting lifespan.COPYRIGHT KIPO 2017
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Paragraph 0290-0295

(2017/06/19)

BLUE FLUORESCENT DOPANT MATERIALS, AND ORGANIC THIN FILM AND ORGANIC LIGHT EMITTING DEVICES COMPRISING THE SAME
The present invention refers to one or more layers including a light emitting layer between anode and cathode is interposed as above wherein at least one of an organic electroluminescent device, comprising of a luminescent layer for organic thin film layer contains said formula 1, formula 2 characterized in that said hole transport material to the light emitting layer employed in conjunction with an organic electroluminescence device number under public affairs substrate. The organic electroluminescence device of the present invention exhibits high efficiency and long lifetime properties. [Formula 1][Formula 2] (by machine translation)
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Paragraph 0305; 0306; 0307; 0308

(2017/06/23)

organic light emitting device
Disclosed is an organic light-emitting device ensuring enhanced driving efficiency and driving stability owing to excellent charge balance regulation properties for hole transfer layers and electron transfer layers. To this end, the organic light-emitting device comprises: a first electrode; a second electrode; a light-emitting layer formed between the first electrode and the second electrode; a hole transfer layer formed between the first electrode and the light-emitting layer; and an electron transfer layer formed between the light-emitting layer and the second electrode. The hole transfer layer contains a compound represented by chemical formula 1 in the specification, and the electron transfer layer contains at least one compound selected from the group consisting of chemical formula 3, 4, and 6 in the specification.COPYRIGHT KIPO 2017
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Paragraph 0086-0093

(2017/10/25)

Organic light emitting device
In film forming process using the intermolecular arrangement and acid, can be driven at low voltage, driving stability and driving efficiency improved organic disclosure with each other. Said first and second electrode number 1; number 2 electrode; and said number 1 interposed between the electrode and a chemical formula which said number 2, compounds represented by formula 3 to compounds of formula 4 to [song[song] layer hole and said at least one, and comprises a compound for formula 1. [Formula 1] [Formula 2] [Formula 3] [Formula 4] In said formula 1, R1 To R7 Are each independently, hydrogen; deuterium (deuterium, D); halogen; amino group; nitrile group; nitro; silane; alkyl of 1 to 30 carbon atoms; 2 to 30 carbon atoms of the light-emitting; alkynyl of 2 to 30 carbon atoms to; 1 to 30 carbon atoms alkoxy group; biting jade time of 6 to 30 carbon atoms; 6 to 50 carbon atoms aryl; heterocyclic inhibitors of 2 to 50 carbon atoms or alkoxy group, said R2 And R3 And at least one of the formula 2, in said formula 2, L, Ar1 And Ar2 Each independently, 6 to 50 carbon atoms aryl; heterocyclic inhibitors of 2 to 50 carbon atoms or alkoxy group, * means a part which engages said formula 1 is of indole, in said formula 3, R10 And R11 Are each independently, a variety of 6 to 20 carbon atoms of 6 to 20 carbon atoms aryl group or alkoxy group, it will be biting, [leyn [leyn] strangeness Ar of 6 to 20 carbon atoms, in said formula 4, R12 To R14 Are each independently, a variety of 6 to 20 carbon atoms of 6 to 20 carbon atoms aryl group or alkoxy group, n is an integer 1 or 2. (by machine translation)
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Paragraph 0081-0083

(2017/10/28)

Organic electroluminescent having capping layer and electronic device using the same
Disclosed are an organic light emitting device including a capping layer and an electronic device using the same, capable of having high color purity, forming a stable film, and improving external quantum efficiency and color coordinates. The organic light emitting device includes: a first electrode; a second electrode; at least one organic layer formed between the first and second electrodes; and a capping layer formed on at least one side, which is opposite to the organic layer, among sides of the first and second electrodes. The capping layer includes a compound indicated in the chemical formula 1.COPYRIGHT KIPO 2017
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Paragraph 0062-0064

(2017/10/31)

Organic electroluminescent having charge generating layer
Disclosed is an organic electroluminescent device having a charge generation layer which facilitates hole injection, is excellent in electron blocking properties, and has excellent driving voltage, efficiency and lifetime as well as fast hole mobility. The organic electroluminescent device comprises: a first electrode; a second electrode; and an organic material layer which is formed between the first electrode and the second electrode, and the organic material layer comprises a hole injection layer which includes a compound represented by chemical formula 1, a charge generation layer which includes a compound represented by chemical formula 2, and a hole transport layer which includes a compound represented by chemical formula 3. In chemical formula 1, Ar_1 and Ar_2 are each independently a C_10-C_50 aryl group, Ar_3 and Ar_4 are a C_6-C_30 aryl group, and L_1 is a C_6-C_30 aryl group. In chemical formula 2, R_1 to R_6 are a cyano group. In chemical formula 3, R_7 to R_13 are each independently hydrogen, deuterium, halogen, an amino group, a nitrile group, a nitro group, a silane group, a C_1-C_30 alkyl group, a C_2-C_30 alkenyl group, a C_2-C_30 alkynyl group, a C_1-C_30 alkoxy group, a C_6-C_30 aryloxy group, a C_6-C_50 aryl group, or a C_2-C_50 heteroaryl group, and at least one of R_8 and R_9 is chemical formula 4. In chemical formula 4, L_3, Ar_15, and Ar_16 are each independently a C_6-C_50 aryl group or a C_2-C_50 heteroaryl group, and * indicates a portion which is coupled to an indole part of chemical formula 3.COPYRIGHT KIPO 2017
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Paragraph 0076-0078

(2017/10/31)

AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENCE ELEMENT USING THE SAME
Of a specific structure novel aromatic amine derivatives, and at least a light-emitting layer between a cathode and an anode including 1 layer or an organic thin film composed of one layer interposed in an organic electroluminescent element, said organic thin film least 1 layer, hole transport layer in particular said aromatic amine derivatives by itself or as a component of a mixture by, whether or not result in crystallization of molecules, organic electroluminescent device corresponding to a predetermined liquid crystal and, tube having a long lifetime in organic electroluminescent device with high.
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(2016/10/17)

Hole transporting materials with twisted aryl groups
Novel compounds, and in particular, novel molecules having twisted aryl groups are provided. In particular, the compounds include an aryl group at the ortho position relative to an amine nitrogen, thereby causing a twist within the compound from the plane of the aryl group due to the steric effect. As a result, this decreases the tendency of the molecules to pack closely and results in a higher solid state triplet energy due to reduced solid state π-stacking. Additionally, organic light emitting devices (OLEDs) comprising a layer including these novel compounds are provided.
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Page/Page column 122; 123

(2014/05/20)

AMINOINDOLO[3,2,1-jk]CARBAZOLE COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
The present invention provides a novel aminoindolo[3,2,1-jk]carbazole compound having a good film-forming property and provides an organic light-emitting device including the compound. Provided is the aminoindolo[3,2,1-jk]carbazole compound represented by Formula [1] according to Claim 1. In Formula [1], l represents an integer of 1 to 3; n and m each independently represent an integer of 0 to 2; and R1 to R32 represent hydrogen atom, alkyl groups having 1 to 8 carbon atoms or fluorine atoms, wherein the alkyl groups may contain fluorine atoms.
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Paragraph 0105; 0106

(2013/03/26)

AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT COMPRISING SAME
Provided are: an aromatic amine derivative having a terminal substituent selected from a dibenzofuran, a dibenzothiophene, a substituted carbazole, and a substituted fluorene bound to the central skeleton having a specific structure through a nitrogen atom; an organic electroluminescence device, including an organic thin-film layer formed of one or more layers including at least a light emitting layer, the organic thin-film layer being interposed between a cathode and an anode, in which at least one layer of the organic thin-film layer contains the aromatic amine derivative alone or as a component of a mixture, the organic electroluminescence device having a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.
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Page/Page column 87; 88

(2012/12/13)

Indole compounds and organic light-emitting device including the same
Embodiments of the present invention are directed to heteroarylamine compounds wherein: each of Ar1 and Ar2 is independently selected from the group consisting of substituted and unsubstituted C6-C60 aryl groups, substituted and unsubstituted C4-C60 heteroaryl groups, and substituted and unsubstituted C6-C60 condensed polycyclic groups; X1 is selected from the group consisting of substituted and unsubstituted C6-C30 arylene groups, substituted and unsubstituted C4-C30 heteroarylene groups, and substituted and unsubstituted C6-C30 condensed polycyclic groups; and organic light-emitting devices including the heteroarylamine compounds. The organic light-emitting devices using the heteroarylamine compounds have high-efficiency, low driving voltages, high luminance and long lifespans.
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Page/Page column 29

(2011/04/18)

AROMATIC AMINE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME
The present invention provides a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer, particularly a hole injecting layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Use of the aromatic amine derivative described above materialize an organic electroluminescence device which reduces an operating voltage and makes molecules less liable to be crystallized and which enhances a yield in producing the organic EL device and has a long lifetime.
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Page/Page column 53-54

(2008/12/04)

AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
The present invention provides an organic electroluminescence device which can be driven at a reduced voltage, hardly causes the crystallization of a molecule, can be produced in improved yield, and has a long lifetime because of difficulty of molecular crystallization, and aromatic amine derivatives for realizing the device. The aromatic amine derivatives are novel aromatic amine derivatives having a specific structure. The organic electroluminescence device includes an organic thin film layer formed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode. In the organic electroluminescence device, at least one layer of the organic thin film layer, especially a hole transporting layer, contains the aromatic amine derivative alone or as a component of a mixture.
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Page/Page column 31-32

(2008/06/13)

AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
A novel aromatic amine derivative having an asymmetric and specific structure, and in an organic electroluminescence device which comprises at least one organic thin film layer comprising a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, at least one of the organic thin film layer comprises the aromatic amine derivative singly or as its mixture component, the organic electroluminescence device having an improved success ratio on its production due to difficult crystallization of the amine derivative and exhibiting a long lifetime, and also to the aromatic amine derivative for realizing the organic EL device is provided.
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(2008/06/13)

AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME
Provided are a novel aromatic amine derivative having an asymmetric structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, at least one layer in the above organic thin film layer contains the aromatic amine derivative described above in the form of a single component or a mixed component, whereby molecules are less liable to be crystallized; a yield in producing the organic electroluminescence device is enhanced; and a lifetime is extended.
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(2008/06/13)

AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME
Disclosed is an organic electroluminescence device in which an organic thin film which is composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains a novel aromatic amine derivative, which has an asymmetric structure wherein two different amine units are bonded through a linking group, by itself or as a component of a mixture, molecules are hardly crystallized, thereby improving the production yield of the organic electroluminescence device. This organic electroluminescence device has a long life.
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(2008/06/13)

Aromatic amine derivative and organic electroluminescence device employing the same
A novel aromatic amine derivative having an asymmetric structure, and in an organic electroluminescence device which comprises at least one organic thin film layer comprising a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, at least one of the organic thin film layer comprises the aromatic amine derivative singly or as its mixture component. The organic electroluminescence device having an improved success ratio on its production due to difficult cristalization of the amine derivative and exhiviting a longlife time, and also to the aromatic amine derivative for realizing the organic electroluminescence device is provided.
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(2008/06/13)

AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME
Disclosed is an organic electroluminescent device wherein an organic thin film which is composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains a novel aromatic amine derivative, which has an asymmetric structure wherein two different amine units are bonded through a linking group, by itself or as a component of a mixture, molecules are hardly crystallized, thereby improving the production yield of the organic electroluminescent device. This organic electroluminescent device has a long life.
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Page/Page column 58-59

(2008/06/13)

AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME
Disclosed is a novel aromatic amine derivative having an asymmetric structure. Also disclosed is an organic electroluminescent device wherein an organic thin film composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains the aromatic amine derivative by itself or as a component of a mixture, molecules are hardly crystallized, thereby improving the production yield of the organic electroluminescent device. This organic electroluminescent device has a long life.
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Page/Page column 58-59

(2008/06/13)

AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE ELEMENT
A novel aromatic amine derivative having an asymmetric structure; and an organic electroluminescence device comprising a cathode, an anode and an organic thin film layer which is disposed between the cathode and the anode and comprises at least one layer comprising a light emitting layer, wherein at least one layer in the organic thin film layer comprises the above aromatic amine derivative singly or as a component of a mixture. Crystallization of the molecules is suppressed, and the yield in the production of the organic electroluminescence device can be increased.
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Page/Page column 20

(2010/02/14)