PALO ALTO, CA — (MARKET WIRE) — 04/21/2005 — Nanosys announced today the issuance of U.S. Patent No. 6,864,626 (the ‘626 patent) entitled “Electronic Displays using Optically Pumped Luminescent Semiconductor Nanocrystals,” by the U.S. Patent and Trademark Office. The ‘626 patent is part of a broad set of nanotechnology patents that Nanosys has exclusively licensed from the Lawrence Berkeley National Laboratory and covers electronic color displays based on an array of semiconductor nanocrystals.
The technology described in the ‘626 patent utilizes different sized nanocrystals specifically designed to emit light of different colors, such as red, green and blue. The nanocrystals are grouped into pixels and optically pumped to produce a full-color image. Optically pumped, multi-color nanocrystal displays offer many potential advantages such as their exceptional color accuracy and viewing angle, high efficiency, and compatibility with conventional display manufacturing processes. The technology can also be used to replace traditional LCD (Liquid Crystal Display) color filters as a new form of color-changing medium to produce OLED (Organic Light Emitting Diode)-like display quality with the simplicity and reliability of an LCD.
“The technology behind this patent has the potential of creating displays with the best features of OLEDs and LCDs combined while preserving manufacturing simplicity,” said Calvin Chow, Nanosys’ Chief Executive Officer. “The applications for high performance displays such as portable electronics and large screen televisions are huge, and we’re extremely excited to have such an enabling technology to address these opportunities.”
The licensed ‘626 patent complements Nanosys’ other exclusive patents including U.S. Patent Nos. 6,322,901 and 6,861,155, which cover some of the earliest work in basic core shell nanocrystals for highly efficient light emission.