Invention Grant
- Patent Title: LED device having improved contrast
- Patent Title (中): LED装置具有改善的对比度
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Application No.: US11842221Application Date: 2007-08-21
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Publication No.: US07859188B2Publication Date: 2010-12-28
- Inventor: Ronald S. Cok , Yuan-Sheng Tyan , Joel D. Shore , Donald R. Preuss
- Applicant: Ronald S. Cok , Yuan-Sheng Tyan , Joel D. Shore , Donald R. Preuss
- Applicant Address: US VA Herndon
- Assignee: Global OLED Technology LLC
- Current Assignee: Global OLED Technology LLC
- Current Assignee Address: US VA Herndon
- Agency: Morgan Lewis & Bockius LLP
- Main IPC: H01J1/62
- IPC: H01J1/62

Abstract:
A light-emitting diode device, including a substrate; and a reflective electrode and a semi-transparent electrode formed over the substrate and an unpatterned white light-emitting layer formed between the reflective electrode and the semi-transparent electrode, the reflective electrode, semi-transparent electrode, and unpatterned white-light-emitting layer forming an optical microcavity, and wherein either the reflective or semi-transparent electrodes is patterned to form a plurality of independently controllable light-emitting elements with at least one light-emitting element having no color filter. Color filters are formed over a side of the semi-transparent electrodes opposite the unpatterned white light-emitting layer in correspondence with the light-emitting elements, the color filters having at least two different colors. Additionally, a reflected-light absorbing layer is located over all of the light-emitting elements.
Public/Granted literature
- US20090051283A1 LED DEVICE HAVING IMPROVED CONTRAST Public/Granted day:2009-02-26
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