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    • 2. 发明申请
    • MULTICOLOR PHOSPHORESCENT ORGANIC ELECTROLUMINESCENT ELEMENT AND LIGHTING SYSTEM
    • 多晶硅有机电致发光元件和照明系统
    • US20100026175A1
    • 2010-02-04
    • US12519075
    • 2007-11-13
    • Tomoyuki NakayamaHiroshi KashiwagiYoriko NakayamaShigeru Kojima
    • Tomoyuki NakayamaHiroshi KashiwagiYoriko NakayamaShigeru Kojima
    • H01J1/63
    • C09K11/06C09K2211/1007C09K2211/1014C09K2211/1029C09K2211/1044C09K2211/1048C09K2211/1059C09K2211/185H01L51/0059H01L51/0071H01L51/0072H01L51/0073H01L51/0085H01L51/5036H05B33/14
    • This invention provides a multicolor phosphorescent organic electroluminescent element having an excellent electric power efficiency, a prolonged service life, an excellent storage stability, and an excellent stability of chromaticity against drive current, and a lighting system using the multicolor phosphorescent organic electroluminescent element. The multicolor phosphorescent organic electroluminescent element contains a plurality of phosphorescent dopants different from each other in luminescence wavelength and particularly exhibits white luminescence. Specifically, the multicolor phosphorescent organic electroluminescent element contains two or more phosphorescent dopants different from each other in luminescence wavelength and comprises two or more luminescent layers, the luminescent dopant being a phosphorescent dopant. The multicolor phosphorescent organic electroluminescent element is characterized in that at least one layer formed of luminescent layer A containing two or more phosphorescent dopants different from each other in luminescence wavelength in the same layer is provided, the content of the luminescent dopant having the highest concentration used in the luminescent layer A is not less than 4% by mass and not more than 20% by mass, and luminescent layer B having a maximum luminescence wavelength of not more than 480 nm is provided at a position near the cathode side as compared with the luminescent layer A.
    • 本发明提供一种多色磷光有机电致发光元件,其具有优异的电力效率,延长的使用寿命,优异的储存稳定性和优异的色温对驱动电流的稳定性,以及使用该多色磷光有机电致发光元件的照明系统。 多色磷光有机电致发光元件在发光波长中含有彼此不同的多个磷光掺杂剂,特别是显示白色发光。 具体地,多色磷光有机电致发光元件在发光波长中含有彼此不同的两种或更多种磷光掺杂剂,并且包含两个或更多个发光层,发光掺杂剂是磷光掺杂剂。 多色磷光有机电致发光元件的特征在于,在同一层中,由发光层A形成的至少一层由发光波长彼此不同的两种以上的磷光掺杂剂构成,使用浓度最高的发光掺杂剂的含量 在发光层A中,不少于4质量%且20质量%以下,与阴极侧相比,在阴极侧附近的位置设置有最大发光波长为480nm以下的发光层B 发光层A.
    • 3. 发明授权
    • Image forming method using thermal transfer recording material
    • 使用热转印记录材料的成像方法
    • US07226891B2
    • 2007-06-05
    • US10946058
    • 2004-09-21
    • Yoriko NakayamaHiroshi WatanabeHiroaki YamagishiHirokazu KoyamaKaori FukumuroHiroki Nakane
    • Yoriko NakayamaHiroshi WatanabeHiroaki YamagishiHirokazu KoyamaKaori FukumuroHiroki Nakane
    • B41M5/38
    • B41M5/385
    • An image forming method containing the steps of (a) forming an image on a thermal transfer sheet of a thermal transfer recording material, and (b) transferring the image onto an image receiving sheet of the thermal transfer recording material, wherein the thermal transfer sheet including a substrate having thereon a yellow ink layer containing a thermally transferable yellow dye, a magenta ink layer containing a thermally transferable magenta dye, and a cyan ink layer containing a thermally transferable cyan dye, the image receiving sheet including a substrate having thereon a thermally transferable dye receiving layer; at least one of the thermally transferable dyes is reactive with a dye fixing agent, and satisfies Formula of (Aa/Am)×100≧75; and a printing rate of each of the yellow ink layer, the magenta ink layer and the cyan ink layer is not more than 2.5 msec./line.
    • 一种图像形成方法,包括以下步骤:(a)在热转印记录材料的热转印片上形成图像,和(b)将图像转印到热转印记录材料的图像接收片上,其中热转印片 包括其上具有含有可热转移的黄色染料的黄色油墨层的基材,含有可热转印的品红色染料的洋红色油墨层和含有可热转移的青色染料的青色油墨层,所述图像接收片材包括其上具有热 可转染染料接收层; 至少一种可热转印染料与染料固色剂反应,满足式(Aa / Am)×100> = 75; 并且黄色油墨层,品红色油墨层和青色油墨层中的每一个的打印率不超过2.5毫秒/秒。
    • 8. 发明授权
    • Multicolor phosphorescent organic electroluminescent element and lighting system
    • 多色磷光有机电致发光元件及照明系统
    • US08299787B2
    • 2012-10-30
    • US12519075
    • 2007-11-13
    • Tomoyuki NakayamaHiroshi KashiwagiYoriko NakayamaShigeru Kojima
    • Tomoyuki NakayamaHiroshi KashiwagiYoriko NakayamaShigeru Kojima
    • G01V3/00
    • C09K11/06C09K2211/1007C09K2211/1014C09K2211/1029C09K2211/1044C09K2211/1048C09K2211/1059C09K2211/185H01L51/0059H01L51/0071H01L51/0072H01L51/0073H01L51/0085H01L51/5036H05B33/14
    • This invention provides a multicolor phosphorescent organic electroluminescent element having an excellent electric power efficiency, a prolonged service life, an excellent storage stability, and an excellent stability of chromaticity against drive current, and a lighting system using the multicolor phosphorescent organic electroluminescent element. The multicolor phosphorescent organic electroluminescent element contains a plurality of phosphorescent dopants different from each other in luminescence wavelength and particularly exhibits white luminescence. Specifically, the multicolor phosphorescent organic electroluminescent element contains two or more phosphorescent dopants different from each other in luminescence wavelength and comprises two or more luminescent layers, the luminescent dopant being a phosphorescent dopant. The multicolor phosphorescent organic electroluminescent element is characterized in that at least one layer formed of luminescent layer A containing two or more phosphorescent dopants different from each other in luminescence wavelength in the same layer is provided, the content of the luminescent dopant having the highest concentration used in the luminescent layer A is not less than 4% by mass and not more than 20% by mass, and luminescent layer B having a maximum luminescence wavelength of not more than 480 nm is provided at a position near the cathode side as compared with the luminescent layer A.
    • 本发明提供一种多色磷光有机电致发光元件,其具有优异的电力效率,延长的使用寿命,优异的储存稳定性和优异的色温对驱动电流的稳定性,以及使用该多色磷光有机电致发光元件的照明系统。 多色磷光有机电致发光元件在发光波长中含有彼此不同的多个磷光掺杂剂,特别是显示白色发光。 具体地,多色磷光有机电致发光元件在发光波长中含有彼此不同的两种或更多种磷光掺杂剂,并且包含两个或更多个发光层,发光掺杂剂是磷光掺杂剂。 多色磷光有机电致发光元件的特征在于,在同一层中,由发光层A形成的至少一层由发光波长彼此不同的两种以上的磷光掺杂剂构成,使用浓度最高的发光掺杂剂的含量 在发光层A中,不少于4质量%且20质量%以下,与阴极侧相比,在阴极侧附近的位置设置有最大发光波长为480nm以下的发光层B 发光层A.
    • 10. 发明申请
    • WHITE ORGANIC ELECTROLUMINESCENT ELEMENT AND LIGHTING DEVICE
    • 白色有机电致发光元件和照明设备
    • US20100127246A1
    • 2010-05-27
    • US12595921
    • 2008-04-04
    • Yoriko NakayamaTomoyuki NakayamaKunimasa HiyamaShigeru Kojima
    • Yoriko NakayamaTomoyuki NakayamaKunimasa HiyamaShigeru Kojima
    • H01L51/54H01L51/52
    • H05B33/14C09K11/06C09K2211/1029C09K2211/1044C09K2211/1092C09K2211/185H01L51/0071H01L51/0072H01L51/0085H01L51/0086H01L51/0087H01L51/0088H01L51/5016H01L51/5036Y02B20/181
    • Disclosed is a white light-emitting organic electroluminescent device, which is excellent in stability of emission chromaticity over a long operation period, while having high electrical efficiency, long life, excellent storage stability and excellent color rendering properties. Also disclosed is an illuminating device using such an organic electroluminescent device. Specifically disclosed is an organic electroluminescent device having a light-emitting layer between an anode and a cathode, which is characterized by comprising a light-emitting layer A having a maximum emission wavelength of not more than 480 nm and containing a phosphorescent dopant having a maximum emission wavelength of not more than 480 nm, and a light-emitting layer B arranged between the light-emitting layer A and the anode, which has a maximum emission wavelength of not less than 510 nm and contains a phosphorescent dopant. This organic electroluminescent device is also characterized in that the concentration of the phosphorescent dopant contained in the light-emitting layer A varies in the thickness direction of the light-emitting layer A. Also specifically disclosed is an illuminating device using such a white light-emitting organic electroluminescent device.
    • 公开了一种白色发光有机电致发光器件,其具有高的电效率,长寿命,优异的储存稳定性和优异的显色性,其在长的操作期间的发光色度的稳定性优异。 还公开了使用这种有机电致发光器件的照明装置。 具体公开了一种在阳极和阴极之间具有发光层的有机电致发光器件,其特征在于包括具有最大发射波长不大于480nm并且含有最大发光波长的磷光掺杂剂的发光层A 发光波长不大于480nm,发光层B布置在发光层A和阳极之间,其发射波长不小于510nm,并且含有磷光掺杂剂。 该有机电致发光器件的特征还在于,发光层A中所含的磷光掺杂剂的浓度在发光层A的厚度方向上变化。具体公开了使用这种白色发光 有机电致发光器件。