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公开(公告)号:US5256945A
公开(公告)日:1993-10-26
申请号:US806287
申请日:1991-12-13
申请人: Kunio Imai , Masanao Shinkai , Takeo Wakimoto , Yasuhiko Shirota
发明人: Kunio Imai , Masanao Shinkai , Takeo Wakimoto , Yasuhiko Shirota
IPC分类号: C09K11/00 , C07C211/54 , C09K11/06 , H01B1/12 , H01L51/00 , H01L51/30 , H01L51/50 , H05B33/14 , H01J1/62
CPC分类号: H05B33/14 , C07C211/54 , H01B1/12 , H01L51/0059 , H01L51/5012 , H01L2251/308 , H01L51/0042 , H01L51/0069 , H01L51/007 , H01L51/0078 , H01L51/0081 , Y10T428/31678
摘要: An organic EL element comprises a cathode, an EL layer of organic compound, a first hole transport layer of organic compound, a second hole transport layer of organic compound and an anode which are laminated in sequence, wherein the second hole transport layer is made of a substance represented by the following chemical formula 1: ##STR1## where R each independently represents a hydrogen atom, an alkyl group of from 1 to 6 carbon atoms, a halogen group, a cyano group, a nitro group, a primary, secondary or tertiary amino group, or an aryl group of from 6 to 15 carbon atoms. This organic EL element prevents a leakage current and emits light stably for a long time.
摘要翻译: 有机EL元件包括阴极,有机化合物的EL层,有机化合物的第一空穴传输层,有机化合物的第二空穴传输层和阳极,其中第二空穴传输层由 由以下化学式1表示的物质:(化学式1)其中R各自独立地表示氢原子,1〜6个碳原子的烷基,卤素基,氰基,硝基, 伯,仲或叔氨基或6至15个碳原子的芳基。 该有机EL元件防止漏电流长时间稳定地发光。
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公开(公告)号:US5122711A
公开(公告)日:1992-06-16
申请号:US402579
申请日:1989-09-05
申请人: Takeo Wakimoto , Masanao Shinkai , Hitoshi Nakada
发明人: Takeo Wakimoto , Masanao Shinkai , Hitoshi Nakada
摘要: An electroluminescent device comprising a fluophor luminescent layer and a hole transport layer respectively composed of organic compounds and laminated to each other disposed between a cathode and an anode, said fluophor luminescent layer comprising a pair of fluophor thin films laminated in each other, the material of the cathode-side film having a larger electron transport capacity than the material of the anode-side film.
摘要翻译: 一种电致发光器件,包括分别由有机化合物构成并层叠在阴极和阳极之间的荧光发光层和空穴传输层,所述荧光发光层包括彼此层叠的一对荧光薄膜, 阴极侧膜具有比阳极侧膜的材料更大的电子传输能力。
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公开(公告)号:US06906457B2
公开(公告)日:2005-06-14
申请号:US10320546
申请日:2002-12-17
申请人: Young Woo Song , Hitoshi Yamamoto , Takeo Wakimoto , Chang Hee Ko
发明人: Young Woo Song , Hitoshi Yamamoto , Takeo Wakimoto , Chang Hee Ko
CPC分类号: H01L51/5262 , Y10T428/24942
摘要: An organic electroluminescent display (EL) device including a substrate, a transparent electrode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode, sequentially stacked, wherein assuming that the sum of a geometric thickness of the electron transport layer, a geometric thickness of the light emitting layer is denoted by l1, the l1 with a maximum of luminance is denoted by a peak_l1, the sum of a geometric thickness of the hole transport layer and a geometric thickness of the transparent electrode is denoted by l2, the geometric thickness of the hole transport layer is denoted by d(HTL), the d(HTL) with a maximum or minimum of luminance is denoted by a peak_d(HTL), the l1 is set to have an maximum of luminance and l2 is set such that a thickness distribution according to colors of red, green and blue at the peak_l2 is within the range of 30 nm, respectively.
摘要翻译: 依次层叠有包括基板,透明电极,空穴传输层,发光层,电子传输层和阴极的有机电致发光显示装置(EL)装置,其中假定电子传输的几何厚度之和 层,发光层的几何厚度由l 1表示,具有最大亮度的l1由peak_11表示,空穴传输层的几何厚度和透明电极的几何厚度之和 由l 2表示,空穴传输层的几何厚度由d(HTL)表示,亮度最大或最小的d(HTL)由peak_d(HTL)表示,l 1设置为具有 亮度的最大值和l2被设定为使得根据peak_l 2处的红色,绿色和蓝色的颜色的厚度分布分别在30nm的范围内。
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公开(公告)号:US06812638B2
公开(公告)日:2004-11-02
申请号:US10103571
申请日:2002-03-22
申请人: Takeo Wakimoto , Kenji Nakamura
发明人: Takeo Wakimoto , Kenji Nakamura
IPC分类号: B32B1900
CPC分类号: H01L51/5281 , H01L51/0053 , H01L51/0054 , H01L51/0055 , H01L51/0059 , H01L51/006 , H01L51/007 , H01L51/0071 , H01L51/0077 , H01L51/0079 , H01L51/0081 , H01L51/5048 , H01L51/5203 , H01L2251/308 , Y10S428/917 , Y10T428/24975
摘要: An organic semiconductor diode comprises a hole transport layer which is arranged on an anode side and formed of an organic compound having a hole transport capability, and an electron transport layer which is arranged on a cathode side and formed of an organic compound having an electron transport capability. The hole transport layer and the electron transport layer are laminated one upon another. The cathode has a work function close to or smaller than the electron affinity of the electron transport layer, while the anode has a work function larger than that of the cathode. The organic semiconductor diode exhibits nonlinear current-voltage characteristics when a voltage is applied between the hole transport layer and the electron transport layer in contact with each other.
摘要翻译: 有机半导体二极管包括布置在阳极侧并由具有空穴传输能力的有机化合物形成的空穴传输层和布置在阴极侧并由具有电子传输的有机化合物形成的电子传输层 能力。 空穴传输层和电子传输层彼此层叠。 阴极具有接近或小于电子传输层的电子亲和力的功函数,而阳极具有大于阴极的功函数。 当在彼此接触的空穴传输层和电子传输层之间施加电压时,有机半导体二极管表现出非线性电流 - 电压特性。
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公开(公告)号:US06602618B2
公开(公告)日:2003-08-05
申请号:US09822826
申请日:2001-04-02
申请人: Teruichi Watanabe , Shin Kawami , Takeo Wakimoto
发明人: Teruichi Watanabe , Shin Kawami , Takeo Wakimoto
IPC分类号: H05B3312
CPC分类号: H01L51/5036 , H01L51/005 , H01L51/0052 , H01L51/0059 , H01L51/0081 , H01L51/0094 , H01L51/5096 , Y10S428/917 , Y10T428/24942
摘要: An organic electroluminescence element is comprised of a laminate of an anode, a light emitting layer made of an organic compound including phosphorescent materials, an electron transport layer made of an organic compound, and a cathode In the electroluminescence element, a hole blocking layer made of a specific aluminium chelate complex is laminated between the light emitting layer and the electron transport layer.
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公开(公告)号:US5227252A
公开(公告)日:1993-07-13
申请号:US643985
申请日:1991-01-22
申请人: Ryuji Murayama , Takeo Wakimoto , Hitoshi Nakada , Masaharu Nomura , Giichi Sato
发明人: Ryuji Murayama , Takeo Wakimoto , Hitoshi Nakada , Masaharu Nomura , Giichi Sato
CPC分类号: H05B33/14 , C09K11/06 , Y10S428/917
摘要: Electroluminescent device with improved luminous efficiency, where a fluorescent emitting layer and a positive-hole transporting layer are layered on each other and arranged between a cathode and an anode, the two layers comprising organic compounds and the fluorescent emitting layer being composed of quinoline derivative as a host material, characterized by containing in the fluorescent emitting layer, as a guest material, a quinacridone compound of the following formula (A); ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, methyl group or chlorine or the dehydro form of the quinacridone compound.
摘要翻译: 荧光发射层和正空穴传输层彼此层叠并且布置在阴极和阳极之间的具有改善的发光效率的电致发光器件,两层包括有机化合物,并且荧光发射层由喹啉衍生物 其特征在于,在所述荧光发光层中含有下述式(A)的喹吖啶酮化合物作为客体材料。 (A)其中R 1和R 2独立地是氢,甲基或氯或脱氢形式的喹吖啶酮化合物。
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公开(公告)号:US5104740A
公开(公告)日:1992-04-14
申请号:US481160
申请日:1990-02-20
申请人: Masanao Shinkai , Tohru Namiki , Hitoshi Nakada , Takeo Wakimoto , Ryuji Murayama , Daisaku Matsunaga
发明人: Masanao Shinkai , Tohru Namiki , Hitoshi Nakada , Takeo Wakimoto , Ryuji Murayama , Daisaku Matsunaga
CPC分类号: H05B33/14 , C09K11/06 , Y10S428/917 , Y10T428/31678
摘要: The electroluminescent element of the present invention comprises a fluorescent substance layer containing a courmarinic or azacoumarinic derivative and a hole transport layer, both made of organic compounds and laminated on top of the other. The both layers are interposed between cathode and anode electrodes. It emits light efficiently at a high luminance upon application of a low voltage between the electrodes.
摘要翻译: 本发明的电致发光元件包括含有由有机化合物制成的层状叠层的陶瓷或氮杂尿素衍生物和空穴传输层的荧光物质层。 两层都插在阴极和阳极之间。 在电极之间施加低电压时,其以高亮度有效发光。
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公开(公告)号:US08975619B2
公开(公告)日:2015-03-10
申请号:US13818784
申请日:2011-07-28
CPC分类号: C09K11/59 , C09K11/7734 , H01L33/502 , H01L33/504 , H05B33/14
摘要: The invention relates to co-activated silicate based phosphors. The invention further relates to the method of preparing these phosphors and to the use of these phosphors in electronic and electrooptical devices, in particular in light emitting diodes (LEDs) and solar cells. The invention further relates to illumination units comprising said phosphors.
摘要翻译: 本发明涉及共活化硅酸盐基磷光体。 本发明还涉及制备这些荧光体的方法以及这些磷光体在电子和电光装置中的用途,特别是在发光二极管(LED)和太阳能电池中。 本发明还涉及包括所述磷光体的照明单元。
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公开(公告)号:US20130153882A1
公开(公告)日:2013-06-20
申请号:US13818784
申请日:2011-07-28
IPC分类号: C09K11/59
CPC分类号: C09K11/59 , C09K11/7734 , H01L33/502 , H01L33/504 , H05B33/14
摘要: The invention relates to co-activated silicate based phosphors. The invention further relates to the method of preparing these phosphors and to the use of these phosphors in electronic and electrooptical devices, in particular in light emitting diodes (LEDs) and solar cells. The invention further relates to illumination units comprising said phosphors.
摘要翻译: 本发明涉及共活化硅酸盐基磷光体。 本发明还涉及制备这些荧光体的方法以及这些磷光体在电子和电光装置中的用途,特别是在发光二极管(LED)和太阳能电池中。 本发明还涉及包括所述磷光体的照明单元。
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公开(公告)号:US07645523B2
公开(公告)日:2010-01-12
申请号:US10282244
申请日:2002-10-29
申请人: Taishi Tsuji , Satoshi Miyaguchi , Takeo Wakimoto
发明人: Taishi Tsuji , Satoshi Miyaguchi , Takeo Wakimoto
IPC分类号: H01J1/62
CPC分类号: H01L51/5016 , C09K11/06 , C09K2211/1029 , C09K2211/186 , H01L51/005 , H01L51/0052 , H01L51/0059 , H01L51/0077 , H01L51/0079 , H01L51/0094 , H01L51/5048 , Y10S428/917 , Y10T428/24942
摘要: An organic electroluminescence element has an anode, a hole transport layer, a light emitting layer made of organic compounds, an electron transport layer and a cathode. The light emitting layer comprises an organic host material having an electron transport capability and an organic guest material of phosphorescent material. An ionization potential energy of the organic host material is higher than that of the hole transport layer. The difference in the ionization potential energy between the organic host material of the light emitting layer and the hole transport layer is in a range from 0.4 eV to 0.8 eV.
摘要翻译: 有机电致发光元件具有阳极,空穴传输层,由有机化合物制成的发光层,电子传输层和阴极。 发光层包括具有电子传输能力的有机主体材料和磷光材料的有机客体材料。 有机主体材料的电离势能高于空穴传输层的电离势能。 发光层的有机主体与空穴传输层的电离势能的差在0.4eV〜0.8eV的范围内。
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