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USA As Represented by Secretary of the Navy

Geo-centers, Inc.

Banhalli R Ratna

Henry F Gray

Jianping P Yang

Syed B Qadri

David S Hsu

David S Y Hsu

Geoffrey Louis Barrows

Anno Hermanns

Nanocrystalline phosphors are formed within a bicontinuous cubic phase.

Nanoparticle phosphors manufactured using the bicontinuous cubic phase process

An active matrix circuit for compact, high resolution reflective liquid ctal displays includes a low quiescent current, low output impedance MOS transistor amplifier produced in a CMOS process. A voltage controlled input switch effects the voltage refresh of the active matrix cell by passing a data voltage to the input of the transistor amplifier when a control voltage pulse is present on the input switch control line. All active matrix cells in a given row use the same input switch control line, and all active matrix cells in a given column access the same data input line. Refresh of the active matrix cell voltage terminates when the input switch is opened, storing the data voltage on the input node capacitance of the amplifier. The active matrix circuit is particularly addressed to liquid crystal devices having fast, analog response liquid crystals with large molecular polarizations such as in the Electroclinic Liquid Crystals (ELC). Including such an amplifier in each active matrix cell facilitates delivery of the large charge required to switch such liquid crystals without incurring a concomitant drop in pixel voltage, as encountered with other active matrix cell circuits.

Cell circuit for active matrix liquid crystal displays using high

Nanocrystalline phosphors are formed within a bicontinuous cubic phase. The phosphors are doped with an optimum concentration, of manganese, for example, corresponding to about one or less dopant ions per phosphor particle.

Nanoparticle phosphors manufactured using the bicontinuous cubic phase

Phosphors having a doped core are surrounded by a shell material. Additionally, these nanocrystalline phosphors, or larger phosphors formed by conventional or other processes may be surrounded by a shell that prevents or significantly reduces non-radiative recombination at the surface of the original phosphor.

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Springfield, VA, United States of America

Banhalli R Ratna