G - Physics – 09 – G
Patent
G - Physics
09
G
G09G 3/36 (2006.01) G01S 7/04 (2006.01) G01S 13/10 (2006.01)
Patent
CA 2418156
A temperature compensation circuit for a liquid crystal display (LCD) module. The temperature compensation circuit includes a thermistor which in response to changes in temperatures changes the clocking rate for the drive signals for the LCD module. A further bias voltage circuit may be included which in response to a change in temperature changes the bias voltage for the LCD module. The effect of the temperature variable clocking rate and/or bias voltage is to improve the segment contrast and therefore the definition of information displayed on the LCD module. The temperature compensation circuit is particularly suited for LCD modules used in level measurement systems installed in harsh industrial or outdoor environments.
Ridout & Maybee Llp
Siemens Milltronics Process Instruments Inc.
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