Time display apparatus

Details Time display apparatus Time display apparatus

1982-12-03

1984-07-10

Truhe, J. V.

Horology: time measuring systems or devices

Displays or display device details

Optical

368 82, G04B 1900, G04B 1930, G04B 1906

Patent

active

044590342

ABSTRACT:
A time display apparatus for producing an analog-type display using liquid crystal display elements, electrochomic display elements, or the like is described. The display of this apparatus is divided into two parts: a main display portion for indicating the hour and for indicating the number of minutes past the hour in units of 2.5 minutes, and an auxiliary display portion for indicating the number of minutes in units of 1 minute. The main display portion requires 48 display elements, and the auxiliary display portion requires 4 elements, compared to 120 elements required in conventional time displays. Through this reduction in the number of elements, a small-sized, low-priced display apparatus can be achieved.

REFERENCES:
patent: 3823549 (1974-07-01), Feldman
patent: 3839857 (1974-10-01), Berets et al.
patent: 3844105 (1974-10-01), Kashio
patent: 3908355 (1975-09-01), Wiesner
patent: 3919835 (1975-11-01), Kashio
patent: 4149368 (1979-04-01), Nakamura et al.
patent: 4198810 (1980-04-01), Fahrenschon
patent: 4209974 (1980-07-01), Noble

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