Screen brightness control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 20, 2000
Grant Date -
N/A
app pub date -
Feb 13, 1998
filing date -
Feb 14, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A screen-illuminating panel for a backlit LCD is intermittently adjusted to an optimal brightness level varying depending on ambient illumination at predetermined time intervals. The screen-illuminating panel is driven to hold the optimal brightness level while the screen-illuminating panel is not adjusted, a timer is used to detect a lapse of a time period to produce a timing signal after a trigger signal is received, and a power controller supplies power for brightness adjustment when the timing signal is received from the timer and outputs the trigger signal to the timer when the screen-illuminating panel has been adjusted.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully