| US 7,532,195 B2 | ||
| Method and system for reducing power consumption in a display | ||
| Jeffrey B. Sampsell, San Jose, Calif. (US) | ||
| Assigned to IDC, LLC, San Francisco, Calif. (US) | ||
| Filed on Apr. 01, 2005, as Appl. No. 11/97,827. | ||
| Claims priority of provisional application 60/613404, filed on Sep. 27, 2004. | ||
| Prior Publication US 2006/0066597 A1, Mar. 30, 2006 | ||
| Int. Cl. G09G 3/34 (2006.01) | ||
| U.S. Cl. 345—108 [345/698] | 13 Claims |
| 1. A method of updating a display, said display comprising a plurality of display elements characterized by a display state,
said method comprising:
in a first mode of operation, periodically re-setting said display state of substantially all said display elements at a first
frame update rate so as to display a first series of image frames, said plurality of display elements being arranged as a
plurality of pixels of said display, each pixel having two or more display elements; and
changing to a second mode of operation, wherein said second mode of operation comprises periodically re-setting said display
state of a first portion of said display elements at a second frame update rate and periodically re-setting said display state
of a remaining portion of said display elements at a third frame update rate that is less than said second frame update rate,
said changing being triggered by a power level condition,
wherein in said second mode, a second series of image frames are displayed at a display element resolution which is less than
said display element resolution used to display said first series of image frames, and
wherein said second mode comprises periodically re-setting said display state of a first display element in a first pixel
at said second frame update rate and periodically re-setting said display state of a second display element in said first
pixel at said third frame update rate.
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