CH580300B5CH524973ACH524973ACH580300B5CH 580300 B5CH580300 B5CH 580300B5CH 524973 ACH524973 ACH 524973ACH 524973 ACH524973 ACH 524973ACH 580300 B5CH580300 B5CH 580300B5
Authority
CH
Switzerland
Application number
CH524973A
Original Assignee
Girard Perregaux Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Girard Perregaux SafiledCriticalGirard Perregaux Sa
Priority to CH524973DpriorityCriticalpatent/CH524973A4/xx
Priority to CH524973Aprioritypatent/CH580300B5/xx
Publication of CH580300B5publicationCriticalpatent/CH580300B5/xx
G04G9/0023—Visual time or date indication means by light valves in general
G04G9/0029—Details
G04G9/0047—Details electrical, e.g. selection or application of the operating voltage
G04G9/0052—Details electrical, e.g. selection or application of the operating voltage using means to adjust the display in accordance with the ambient light, e.g. switching or controlling a supplementary light source
G—PHYSICS
G04—HOROLOGY
G04G—ELECTRONIC TIME-PIECES
G04G9/00—Visual time or date indication means
G04G9/0017—Visual time or date indication means in which the light emitting display elements may be activated at will or are controlled in accordance with the ambient light