Portable electronic device having double-side display...

Details Portable electronic device having double-side display... Portable electronic device having double-side display...

2007-07-11

2010-11-02

Du, Thuan N (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

By external command

C713S324000, C345S001100, C307S038000

Reexamination Certificate

active

07827422

ABSTRACT:
A portable display device comprises: a first panel emitting light in a first direction; a second panel emitting light in a second direction; a substrate disposed between the first panel and the second panel; a first power supply unit applying a power supply voltage to the first panel; a second power supply unit applying a power supply voltage to the second panel; a switch control unit selectively controlling the first power supply unit and the second power supply unit; a first positive power supply voltage unit electrically coupled to the first power supply unit and applying a positive power supply voltage to the first panel; a second positive power supply voltage unit electrically connected to the second power supply unit and applying a positive power supply voltage to the second panel; a first negative power supply voltage unit electrically coupled to the first power supply unit and applying a negative power supply voltage to the first panel; and a second negative power supply voltage unit electrically connected to the second power supply unit and applying a negative power supply voltage to the second panel.

REFERENCES:
patent: 6762436 (2004-07-01), Huang et al.
patent: 7507993 (2009-03-01), Lee et al.
patent: 2004/0075628 (2004-04-01), Chien et al.
patent: 2004/0263064 (2004-12-01), Huang
patent: 2005/0110403 (2005-05-01), Han et al.
patent: 2007/0109290 (2007-05-01), Lee
patent: 10-2005-0080411 (2005-08-01), None
patent: 10-2005-0104077 (2005-11-01), None
patent: 10-2006-0017199 (2006-02-01), None
patent: 10-2006-0044191 (2006-05-01), None

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