Invention Grant
US07986091B2 Organic light emitting diode having a resonant optical cavity and an extractor serving as a spatial light filter
有权
具有谐振光学腔的有机发光二极管和用作空间光滤波器的提取器
- Patent Title: Organic light emitting diode having a resonant optical cavity and an extractor serving as a spatial light filter
- Patent Title (中): 具有谐振光学腔的有机发光二极管和用作空间光滤波器的提取器
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Application No.: US12084496Application Date: 2006-10-31
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Publication No.: US07986091B2Publication Date: 2011-07-26
- Inventor: Christophe Fery
- Applicant: Christophe Fery
- Applicant Address: FR Boulogne-Billancourt
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Boulogne-Billancourt
- Agent Robert D. Shedd; Jeffrey M. Navon
- Priority: FR0553343 20051104
- International Application: PCT/EP2006/067978 WO 20061031
- International Announcement: WO2007/051799 WO 20070510
- Main IPC: H01L51/50
- IPC: H01L51/50
Abstract:
According to the invention, the extractor is a reflection concentrator. The entry section of the extractor has a larger area than its exit section. The reflecting side walls of the extractor have a suitable shape so that it makes an angle called the cut-off angle θlim, which corresponds to a limiting wavelength λC-lim for transmission from this extractor for a given optical cavity. Applied to diode-based image displays, the invention broadens the viewing angles and improves the colour purity of the images displayed.
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