liquid crystal


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liquid crystal

A substance that alters its color or changes from opaque to transparent when subjected to changes in temperature, electric current, pressure, or electromagnetic waves, or when impurities are present. Liquid crystals have been used to detect temperature fluctuation in infants and may be divided into two general classes: cholestric, which change color; and nematic, which can change back and forth from transparent to opaque.
See also: crystal
References in periodicals archive ?
Vertically aligned, the liquid crystal is "off" and lets no transmitted light pass from behind.
The officials said that Sharp aims to commercialize the new technology in the form of liquid crystal display newspapers or screens for entertainment uses.
Since its discovery in 1906, rubbing to align liquid crystals has been developed into a high art.
Self-organized Semiconducting Discotic Liquid Crystals for Optoelectronic Applications
However, when the liquid crystal film is exposed to green light, the dopant isomerizes to the cis form, which increases the dipole moment of the coupled 2-octyloxy/thioindigo unit, and causes the latter to become dominant.
Although liquid crystal screen TVs provide clearer images than CRT-based TVs, their high prices -- for example, about 180,000 yen for a 15-inch model -- are a major stumbling block to sales.
Polyamides, Polyphenylene Sulfides, Liquid Crystal Polymers,
After the scientists washed away the liquid crystal, they were left with a polymer film that retained the nanoscale and microscale structure of the liquid-crystal cylinders, says Stupp.
com/reports/c54657) has announced the addition of the Frost & Sullivan report: Advances in Liquid Crystal Materials to their offering.
May 30 /PRNewswire/ -- Advances in liquid crystal materials have had a huge impact on the growth of information technologies, with liquid crystal display (LCD) technology fostering the development of lightweight laptops, mobile phones and other handheld devices.
It consists of gold electrodes that sandwich a thin film of liquid crystal.

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