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11. 发明授权

US6117567A Device for producing voltage controlled color with electroluminescence, and method of making the same 失效
标题翻译：用电致发光制造电压控制色的装置及其制造方法
公开(公告)号：US6117567A
公开(公告)日：2000-09-12
申请号：US737572
申请日：1997-04-17
申请人： Mats R. Andersson , Rolf M. Berggren , Bengt G. Gustafsson , Ulf T. Hjertberg , Olle W. Inganas , Arne M. Granstrom
发明人： Mats R. Andersson , Rolf M. Berggren , Bengt G. Gustafsson , Ulf T. Hjertberg , Olle W. Inganas , Arne M. Granstrom
IPC分类号： H05B33/14 , C09K11/06 , H01L51/30 , H01L51/50 , H05B33/12
CPC分类号： H01L51/5036 , H01L51/0035 , H01L51/0036 , H01L51/0038 , H01L51/5012 , Y10S428/917 , Y10T428/31504
摘要： A light emitting polymer diode device for obtaining voltage controlled colors, based on thin polymer films incorporating more than one electroluminescent conjugated polymer and zero or more non-conjugated polymers, and where this polymer blend is formed by mixing the different polymers in a common solvent, which electrolumincscent polymers phase separate in the polymer blend with domains of polymers that have a diameter comparable with the thickness of the polymer film, where the polymer film is sandwiched between two electrodes, one of which injects electrons and one which injects holes, possibly with electron and hole transport layers in between the polymer layer and the electrodes, and where the electrons and holes form excitons in the polymer film leading to emission of photons with colors determined by the bandgap of the emitting materials, and in which the more than one conjugated polymers have different emission colors, and where the polymers of lower bandgap emit light at a lower applied voltage than that which is necessary to induce light emission from the higher bandgap material, and where separation of the electroluminescent polymers from each other by the non-conjugated polymer effectively prevents the transfer of excitons from the higher bandgap polymer to that of lower bandgap, leading to an effective control of the colour of emission by applied voltage.
摘要翻译： PCT No.PCT / SE95 / 00549 Sec。 371日期1997年04月17日 102（e）日期1997年4月17日PCT提交1995年5月16日PCT公布。出版物WO95 / 31515 PCT 日期1995年11月23日一种用于获得电压控制颜色的发光聚合物二极管器件，其基于掺入多于一种电致发光共轭聚合物和零种或多种非共轭聚合物的薄聚合物膜，并且其中通过混合不同聚合物形成该聚合物共混物在共同的溶剂中，电聚合物共聚物中的电致发光聚合物相与聚合物的结晶域分离，聚合物域具有与聚合物膜的厚度相当的直径，其中聚合物膜夹在两个电极之间，其中一个注入电子，一个注入空穴，可能在聚合物层和电极之间的电子和空穴传输层，并且其中电子和空穴在聚合物膜中形成激子，导致光子的发射，其颜色由发射材料的带隙确定，并且其中多于一种的共轭聚合物具有不同的发射颜色，并且其中较低带隙的聚合物在较低的施加电压下照射比从较高带隙材料诱发光发射所需的电压更低的光，并且其中通过非共轭聚合物彼此分离电致发光聚合物有效地防止了激子从较高带隙聚合物转移到较低的带隙，导致通过施加的电压有效地控制发射的颜色。

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