Asahi Glass Company, Limited

Hoechst Celanese Corporation

Hna Holdings, Inc.

Suk Youn Suh

Chia-Chi Teng

George Malinoski

Hyun-Nam Yoon

Sunny S Shen

A bandpass filter containing specific combinations of the dyes to yield filters which are adapted to selectively transmit predetermined primary color wavelengths of an electromagnetic spectrum as well as selectively absorb wavelengths other than the predetermined primary color wavelengths. The multiple bandpass filters are employed to improve the images on CRT screens and plasma display panels.

Dye combinations for multiple bandpass filters for video displays

A bandpass filter containing specific red dyes alone or in combination with other dyes selectively transmits predetermined primary color wavelengths as well as selectively absorbs wavelengths other than the predetermined primary color wavelength. The filter is particularly useful for enhancing the contrast of color plasma displays by absorbing visible light emitted at 590 nm from the display.

Dye combinations for image enhancement filters for color video displays

Disclosed in this invention is an optical filter to enhance the contrast and brightness of images from a color display. The filter comprises suitable dyes and a polymer matrix, applied in a suitable form on the display unit. Such filters have utility in devices based on CRTs, plasmas and the like.

Spectrally tuned multiple bandpass filters for video displays

Disclosed in this invention are transistors which contain substrates that are made of liquid crystalline polymers. Such substrates are compatible with semiconducting layers especially organic semiconducting layers. This enables one to prepare all organic transistors.

Transistors incorporating substrates comprising liquid crystal polymers

Provided is a recording material comprised of a substrate and a metallic recording layer, with the metallic recording layer comprising alternating layers of Bi and Se metal. At least five such alternating layers are used to comprise the recording layer, with from 13 to 17 layers being preferred. The resulting recording material exhibits improved sensitivity, excellent storage stability and archivability, as well as good signal-to-noise ratio.

Recording material utilizing multilayer Bi/Se film

There is provided a method of moving the position of the focal point of an optical system in an optical data storage device. A membrane reflector having an electrically controllable surface contour is provided in the optical system and the reflector's surface contour is controlled so as to move the focal point on the data storage medium of the optical data storage device. The optical system comprises a source of plane-polarized light, a polarizing beam splitter, first and second quarter-wave plates, the membrane reflector and an objective lens.

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Warren, NJ, United States of America

Suk Youn Suh