Display device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 2, 2001
Grant Date -
N/A
app pub date -
Aug 29, 1997
filing date -
Jan 11, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a display device, wiring for the respective display elements is simplified so that the assembling work and the maintenance work become easy. A large number of display units (50) are arranged in length and breadth directions to form the display device. Each display unit comprises a display element (10) comprised of a light bulb, a regulator (51) comprised of a relay, a non-volatile memory (52) comprised of an EEPROM and a controller (53) including a CPU. For these display units (50), a passage (61) for power supply and a passage (71) for supply of synchronizing signal are drawn. Display information to designate change of display mode in time of light emitting or non-light emitting (ON/OFF) state are stored in memories within the respective display units. The controllers of the respective display units carry out ON/OFF control of regulators on the basis of the display information in synchronism with the synchronizing signal to turn ON or OFF the display elements. If a rewrite signal is delivered to the signal transmission passage, the contents of the respective memories can be also rewritten.
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Family
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Cited Art Landscape
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