Method and apparatus for selectable display mode for...

Details Method and apparatus for selectable display mode for... Method and apparatus for selectable display mode for...

2009-11-05

2011-11-01

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S102000

Reexamination Certificate

active

08049744

ABSTRACT:
A method and system for enhancing the life of a battery within a portable or otherwise battery operated electronic device. The method and system provide selectable display modes, e.g., from color to monochrome, that can be changed in order to enhance the life of the device's battery. The monochrome display mode can be selected by the when the battery level is detected below a predefined threshold. In one embodiment, the electronic device is a hand held computer system with a display device. When the battery level is detected as below a preselected level, a message may be generated on the computer display screen. The display mode can change from color to monochrome thereby saving power because the monochrome display. In one embodiment, color sequential techniques are used to provide a flat panel color display. Within the display, a transreflective layer provides reflective light for monochrome applications. When the battery energy returns to normal levels, the color display mode can be re-entered automatically. It is appreciated that the display mode changes can also be performed automatically if the battery level falls below certain critical levels.

REFERENCES:
patent: 5854617 (1998-12-01), Lee et al.
patent: 5944829 (1999-08-01), Shimoda
patent: 6184875 (2001-02-01), Matsuura
patent: 7038641 (2006-05-01), Hirota et al.

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