发明授权
- 专利标题: Multicolor organic electroluminescent device formed of vertically stacked light emitting devices
- 专利标题(中): 由垂直堆叠的发光器件形成的多色有机电致发光器件
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申请号: US11701743申请日: 2007-02-02
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公开(公告)号: US07714504B2公开(公告)日: 2010-05-11
- 发明人: Stephen R. Forrest , Mark E. Thompson , Paul E. Burrows , Linda Susan Sapochak , Dennis Matthew McCarty
- 申请人: Stephen R. Forrest , Mark E. Thompson , Paul E. Burrows , Linda Susan Sapochak , Dennis Matthew McCarty
- 申请人地址: US NJ Princeton
- 专利权人: The Trustees of Princeton University
- 当前专利权人: The Trustees of Princeton University
- 当前专利权人地址: US NJ Princeton
- 代理机构: Kenyon & Kenyon LLP
- 主分类号: H01L51/50
- IPC分类号: H01L51/50 ; H05B33/14
摘要:
A multicolor organic light emitting device employs vertically stacked layers of double heterostructure devices which are fabricated from organic compounds. The vertical stacked structure is formed on a glass base having a transparent coating of ITO or similar metal to provide a substrate. Deposited on the substrate is the vertical stacked arrangement of three double heterostructure devices, each fabricated from a suitable organic material. Stacking is implemented such that the double heterostructure with the longest wavelength is on the top of the stack. This constitutes the device emitting red light on the top with the device having the shortest wavelength, namely, the device emitting blue light, on the bottom of the stack. Located between the red and blue device structures is the green device structure. The devices are configured as stacked to provide a staircase profile whereby each device is separated from the other by a thin transparent conductive contact layer to enable light emanating from each of the devices to pass through the semitransparent contacts and through the lower device structures while further enabling each of the devices to receive a selective bias. The devices are substantially transparent when de-energized, making them useful for heads-up display applications.
公开/授权文献
- US20070132369A1 Transparent contacts for organic devices 公开/授权日:2007-06-14
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