Power supply method for liquid crystal display
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United States of America Patent
Stats
-
Oct 27, 1981
Grant Date -
N/A
app pub date -
Dec 29, 1978
filing date -
Dec 29, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A power supply for a liquid crystal display including a power source for delivering a voltage larger than the driving voltage of the display and a voltage regulator for adjusting the voltage applied to the display to that required to drive the display is provided. The liquid crystal display includes at least two plates having electrodes thereon in a liquid crystal material disposed between the plates. The voltage regulator has a temperature characteristic corresponding to that of a liquid crystal display wherein the driving voltage of the display decreases with an increase in temperature. The power supply allows use of batteries having inferior discharge characteristics and operating the display in the 1/4 duty-driving mode.
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