发明授权
US06825611B2 Electroluminescent elements with light-emitting layer containing first and second compounds
有权
具有含有第一和第二化合物的发光层的电致发光元件
- 专利标题： Electroluminescent elements with light-emitting layer containing first and second compounds
- 专利标题（中）： 具有含有第一和第二化合物的发光层的电致发光元件
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申请号： US10339253申请日： 2003-01-06
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公开(公告)号： US06825611B2公开(公告)日： 2004-11-30
- 发明人: Hidekazu Kobayashi , Hiroshi Kiguchi
- 申请人： Hidekazu Kobayashi , Hiroshi Kiguchi
- 优先权： JP9-236326 19970901
- 主分类号： H01J162
- IPC分类号： H01J162
摘要：
A bright color electroluminescent device that can be easily produced by using a fluorescent conversion substance; and a method of producing the same. A light emitting layer is doped with a fluorescent conversion substance with a concentration gradient. The method therefor includes an ink-jet method. The luminous efficiency is improved. The ink-jet method makes it very easy to pattern an organic layer in producing a color electroluminescent device and to lower the cost.