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US 4,291,400 AGranted
Electronic timepiece
AssigneeCitizen Watch Co., Ltd.
InventorsKatsuhiko Komiyama, Toshio Hiruta
Life of this patent
Estimating the term…
Abstract
An electronic timepiece comprising a module composed of four constitutional elements, i.e. a liquid crystal cell, a liquid crystal cell position determining member, a circuit substrate and a protective cover is disclosed. To the protective cover are secured switch parts each having one end connected to a contact on the circuit substrate and the other end connected to an electrically conductive portion of a push button.
Claims11
A liquid crystal display timepiece module including electronic components comprising:
- (a) a liquid crystal display cell;
- (b) a support frame made of insulating plastic and supporting said liquid crystal display cell;
- (c) a protective cover of insulating plastic adjacent to said support frame;
- (d) a circuit substrate disposed between said liquid crystal display cell and said protective cover, said circuit substrate including a wiring pattern mounted on one surface thereof and connected to said electronic components;
- (e) a plurality of electrode terminals formed on the under surface of said circuit substrate and electrically connected to said wiring pattern;
- (f) a plurality of contact switches operable by an external control member being fixed on one surface of said protective cover between said protective cover and said circuit substrate, each of said contact switches including a terminal portion ending at an outer periphery of said protective cover;
- (g) a resilient contact formed to each of said contact switches, said resilient contact mounted on said protective cover in electrical contact with said electrode terminals;
- and
- (h) joining means for joining said liquid crystal display cell, said support frame, said circuit substrate and said protective cover to form the module.
6 more elements
A liquid crystal display timepiece module including electronic components comprising:
- (a) a liquid crystal display cell;
- (b) a support frame made of insulating plastic and supporting said liquid crystal display cell;
- (c) a protective cover of insulating plastic adjacent to said support frame;
- (d) a circuit substrate disposed between said liquid crystal display cell and said protective cover, said circuit substrate including a wiring pattern mounted on one surface thereof and connected to said electronic components;
- (e) a plurality of electrode terminals formed on the under surface of said circuit substrate and electrically connected to said wiring pattern;
- (f) a plurality of contact switches operable by an external control member being fixed on one surface of said protective cover between said protective cover and said circuit substrate, each of said contact switches including a terminal portion ending at an outer periphery of said protective cover;
- (g) a resilient contact formed to each of said contact switches, said resilient contact mounted on said protective cover in electrical contact with said electrode terminals;
- (h) joining means for joining said liquid crystal display cell, said support frame, said circuit substrate and said protective cover to form the module;
- and
- (i) wherein said circuit substrate is formed of ceramics.
7 more elements
A liquid crystal display timepiece module including electronic components comprising:
- (a) a liquid crystal display cell;
- (b) a support frame made of insulating plastic and supporting said liquid crystal display cell;
- (c) a protective cover of insulating plastic adjacent to said support frame;
- (d) a circuit substrate disposed between said liquid crystal display cell and said protective cover, said circuit substrate including a wiring pattern mounted on one surface thereof and connected to said electronic components;
- (e) a plurality of electrode terminals formed on the under surface of said circuit substrate and electrically connected to said wiring pattern;
- (f) a plurality of contact switches operable by an external control member being fixed on one surface of said protective cover between said protective cover and said circuit substrate, each of said contact switches including a terminal portion ending at an outer periphery of said protective cover;
- (g) a resilient contact formed to each of said contact switches, said resilient contact mounted on said protective cover in electrical contact with said electrode terminals;
- (h) joining means for joining said liquid crystal display cell, said support frame, said circuit substrate and said protective cover to form the module;
- and
- (i) wherein all of said contact switches are fixed to said protective cover.
7 more elements
Dependencies are inferred from the claim text.