Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1990-12-07
1992-11-03
Oberley, Alvin E.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340715, G09G 336
Patent
active
051609207
ABSTRACT:
Described is an electronic shelf label LCD device having a segmented liquid crystal (LC) film disposed on a plurality of segmented and non-segmented photovoltaic cells which provide power for driving the LCD device and electrical signals which are used to indicate malfunctioning LCD segments.
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patent: 4970503 (1990-11-01), Principe et al.
Cockburn Joscelyn G.
Hjerpe Richard
International Business Machines - Corporation
Oberley Alvin E.
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