Electroluminescent display for a timepiece

Details Electroluminescent display for a timepiece Electroluminescent display for a timepiece

1996-09-12

1998-09-08

Roskoski, Bernard

Horology: time measuring systems or devices

Displays or display device details

With luminous material

368227, 368 35, 368 37, G04B 1932, G04B 1920

Patent

active

058055339

ABSTRACT:
An illuminated date ring for a calendar wristwatch for viewing the date at night through a window in the dial, employs an electroluminescent (EL) lamp beneath a transparent date ring. The EL lamp electrodes extend around the ring, and flexible spring members make sliding contact with the electrodes as the ring rotates in the movement.

REFERENCES:
patent: 3608300 (1971-09-01), Wingler
patent: 3832843 (1974-09-01), Wuthrich
patent: 3859783 (1975-01-01), Wuthrich
patent: 4775964 (1988-10-01), Alessio et al.
patent: 5265071 (1993-11-01), Thorgersen et al.
patent: 5566136 (1996-10-01), Schwartz et al.

Affiliated with

Also associated with

Rating

Electroluminescent display for a timepiece does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electroluminescent display for a timepiece, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electroluminescent display for a timepiece will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1290000