发明名称 |
LONG OPERATING LIFE FOR POLYMER LIGHT-EMITTING DIODES |
摘要 |
<p>Long-lived organic light-emitting diodes are achieved by positioning a layer comprising polyaniline in the emeraldine salt form directly contiguous with the anode side of the active light-emitting layer. Particular advantages are achieved if the emeraldine salt-containing layer has a sheet resistance of at least about 103 ohms per square which can be achieved by casting the layer from solution in a polar solvent, most particularly, DMSO. The LED's can find advantageous application in displays where they exhibit long life and marked resistance to blurring, spreading or other degradations over time.</p> |
申请公布号 |
EP1021934(A4) |
申请公布日期 |
2007.01.24 |
申请号 |
EP19970914800 |
申请日期 |
1997.02.28 |
申请人 |
DUPONT DISPLAYS, INC. |
发明人 |
ZHANG, CHI;YU, GANG;CAO, YONG |
分类号 |
H01L51/30;H01L27/32;H01L51/50;H01L51/52 |
主分类号 |
H01L51/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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