EL lamp with heater electrode
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United States of America Patent
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-
Aug 13, 2002
Grant Date -
N/A
app pub date -
Oct 12, 2000
filing date -
Oct 12, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electroluminescent lamp includes two electrodes and at least three connectors, a first connector coupled to a first electrode and a second connector and a third connector coupled to the second electrode. A first electric current flows through the lamp between the first connector and the second connector, causing the lamp to emit light. A second electric current flows through the second electrode between the second connector and the third connector, whereby the second electrode increases in temperature in response to the second electric current. When backlighting a liquid crystal display, the second electrode provides heat to warm the display for proper operation. Either electrode can be used as a heater.
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