Title: Electro-optical devices

Abstract: In a liquid crystal display device comprising a pair of opposed electrode-mounted plates and a nematic liquid crystal layer, the electrode terminals are mounted on one plate by transferring the connection of one electrode to the opposite plate without directly contacting the liquid crystal material by interposing an electrically conductive material between the corresponding electrode terminal and the one electrode. In accordance with changes of environment, distinct patterns are obtained by making the front electrode of the liquid crystal display element transparent and the back electrode thereof a partial light-transmissive, mirror-like plane. The life of the liquid crystal element under application of D.C. field is increased by using titanium, zirconium and palladium as an essential component of the negative electrode of said element.

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Inventors: Yaguchi, Masachika (Yokohama, JA)
Furuta, Shigetaro (Fujisawa, JA)

Application Number: 389072
Filing Date: 1973-08-16
Publication_date: 1976-01-13
Assignee: Dai Nippon Toryo Kabushiki Kaisha (Osaka, JA)
Primary Class(es): 349/113 349/139
Other Classes:
US Patent Ref:

2387745	Oct, 1945	Colbert et al.	350/288.
3600060	Aug, 1971	Churchill et al.	350/160.
3614210	Oct, 1971	Caplan	350/278.
3748017	Jul, 1973	Yamamura et al.	350/160.
3748018	Jul, 1973	Borden	350/160.
3751137	Aug, 1973	Fitzgibbons et al.	350/160.

Other Refs:
Primary Examiner: Bauer, Edward S.
Assistant Examiner:
Attorney: Sughrue, Rothwell, Mion & Zinn