Clocking method and apparatus for display device with calculatio

Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

345 52, 345 95, G09G 500

Patent

active

057512787

ABSTRACT:
In the case where a fed display data is to be displayed as it is, a display operation is executed in accordance with a predetermined first clock signal. In the case where a calculation operation is executed based on the fed display data and the calculation result is to be displayed as a display data, the display operation is executed in accordance with a second clock signal having a frequency higher than that of the first clock signal. In this way, the second clock signal is fed to a display device only when the calculation operation which requires a high speed processing is executed. Accordingly, power consumption can be reduced and an improved quality of display can be obtained. Further, an inversion signal is fed to the display device together with a display signal and a scan signal. The inversion signal is used for periodically switching the polarity of the display signal applied to the display device so as to prevent an occurrence that a direct current is applied to the display device. In the present invention, a first inversion signal and a second inversion signal having a frequency higher than that of the first inversion signal are switchably used. More specifically, in the case where there are relatively many displaying addresses on a column direction electrode, the second inversion signal is used.

REFERENCES:
patent: 5066945 (1991-11-01), Kanno et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Clocking method and apparatus for display device with calculatio does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-985591

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.