Display device

Details Display device Display device

1976-04-29

1977-11-08

Corbin, John K.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340336, G02F 113

Patent

active

040573257

ABSTRACT:
A temperature compensating display device including a display operated by driving signals. A temperature detecting circuit periodically develops an oscillatory output signal having a frequency representative of ambient temperature, and the oscillatory signal is applied to a divider circuit for dividing the same. A selecting circuit receives the divided signal representative of ambient temperature and develops an oscillatory signal having a duty cycle representative of ambient temperature. A drive control circuit receives the selecting circuit output signal and voltage signals for developing driving signals and applying the driving signals to drive the display with the voltages at duty cycles corresponding to the duty cycles of the selecting circuit output signals. Accordingly, variations in driving voltages applied to the display compensate for ambient temperature variations, and this compensation is adjusted periodically each time the temperature detecting circuit develops its oscillatory output signal.

REFERENCES:
patent: 3907405 (1975-09-01), Fukai et al.
patent: 3921162 (1975-11-01), Fukai et al.

Affiliated with

Also associated with

Rating

Display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-227038