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Article: Japanese Inventors Develop Liquid Crystal Display Device with Two Glass Substrates
- Article from:
- US Fed News Service, Including US State News
- Article date:
- May 27, 2008
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ALEXANDRIA, Va., May 27 -- Daisuke Inoue and Hideki Ito, both of Kawasaki, Japan, Hiromitsu Tanaka of Isumi, Japan, and Takashi Kamino of Izumi, Japan, have developed a liquid crystal display device.
According to the U.S. Patent & Trademark Office: "First and second columnar spacers are formed on a color filter substrate, and step films are formed on an active matrix substrate in the same step as signal lines. The columnar spacers are formed by proximity exposure, and the step films are formed by being exposed by a lens projection system. In plan view, the step films are disposed inside the columnar spacers. The first columnar spacers are made to be in contact with the regions of the ...