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1. (WO2013154841) CONTENT-PRESERVING SCREEN SAVER

Pub. No.:    WO/2013/154841    International Application No.:    PCT/US2013/034416
Publication Date: Fri Oct 18 01:59:59 CEST 2013 International Filing Date: Fri Mar 29 00:59:59 CET 2013
IPC: G09G 3/22
H04M 1/73
Applicants: QUALCOMM MEMS TECHNOLOGIES, INC.
Inventors: CHAN, Leslie, Chiming
Title: CONTENT-PRESERVING SCREEN SAVER
Abstract:
A content-preserving screen saver (CPSS) method for controlling a display apparatus is disclosed. When a CPSS method is implemented, the screen content may be displayed at a relatively lower resolution, such as half resolution or some other fraction of full resolution, by deactivating some of the display pixels or subpixels. The CPSS may be activated, for example, if no user input is received (and/or if another event does not occur) for a predetermined period of time. In one half-resolution example, every other pixel of the display is turned off when the CPSS is activated. After another predetermined period of time, all pixels are "flipped": pixels that were on are turned off, and pixels that were off are turned on. In alternative implementations, more or fewer than half of the pixels may be switched off to achieve other partial resolution states, such as 75% resolution, 2/3 resolution, 1/3 resolution, etc