Patents by Inventor Fabian Doerfel

Fabian Doerfel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reducing or eliminating color change for microcavity OLED devices
    Patent number: 7489074
    Abstract: In an embodiment of the invention, a microcavity OLED device that minimizes or eliminates color change at different viewing angles is fabricated. The OLED device can be, for example, an OLED display or an OLED light source used for area illumination. This OLED device includes a multi-layer mirror on a substrate, and each of the layers are comprised of a non-absorbing material. The OLED device also includes a first electrode on the multi-layered first mirror, and the first electrode is substantially transparent. An emissive layer is on the first electrode. A second electrode is on the emissive layer, and the second electrode is substantially reflective and functions as a mirror. The multi-layer mirror and the second electrode form a microcavity. On a front surface of the substrate is a light modulation thin film.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: February 10, 2009
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Homer Antoniadis, Fabian Doerfel
  • Reducing or eliminating color change for microcavity OLED devices
    Publication number: 20060066228
    Abstract: In an embodiment of the invention, a microcavity OLED device that minimizes or eliminates color change at different viewing angles is fabricated. The OLED device can be, for example, an OLED display or an OLED light source used for area illumination. This OLED device includes a multi-layer mirror on a substrate, and each of the layers are comprised of a non-absorbing material. The OLED device also includes a first electrode on the multi-layered first mirror, and the first electrode is substantially transparent. An emissive layer is on the first electrode. A second electrode is on the emissive layer, and the second electrode is substantially reflective and functions as a mirror. The multi-layer mirror and the second electrode form a microcavity. On a front surface of the substrate is a light modulation thin film.
    Type: Application
    Filed: September 28, 2004
    Publication date: March 30, 2006
    Inventors: Homer Antoniadis, Fabian Doerfel