Title: Liquid crystal display cell

Abstract: A liquid crystal, electrochromic or other electro-optical material is sandwiched between two glass substrates. An electric field is applied to the electro-optical material to display time and other information on a watch. The lower glass substrate is thinner than the upper substrate so as to create clear displays and to enable the manufacture of a thin watch which is also light weight and shock resistant.

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Inventors: Yoshida, Masateru (Tanashi, JA)
Natori, Minoru (Saitama, JA)

Application Number: 557613
Filing Date: 1975-03-12
Publication_date: 1976-08-10
Assignee: Citizen Watch Co., Ltd. (Tokyo, JA)
Primary Class(es): 368/242 40/448, 40/548, 349/58, 349/84, 349/158, 428/215, 428/337, 428/913
Other Classes:
US Patent Ref:

3585381	Jun, 1971	Hodson et al.	428/1.
3592726	Jul, 1971	Blizard	428/215.
3781087	Dec, 1973	Nagasaki	350/160.
3801423	Apr, 1974	Van Laethem	428/213.
3802945	Apr, 1974	James	428/1.

Other Refs:
Primary Examiner: McCamish, Marion E.
Assistant Examiner: Dixon, Jr., William R.
Attorney: Spensley, Horn & Lubitz