Display apparatus and control method thereof

Details Display apparatus and control method thereof Display apparatus and control method thereof

2006-05-30

2009-12-01

Vu, David Hung (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

C315S169300, C315S307000

Reexamination Certificate

active

07626340

ABSTRACT:
The present invention relates to a display apparatus comprising a light emitting element supplying light, and a switch to switch on and off power, which is supplied to the light emitting element. A comparing unit compares a predetermined first reference voltage and an output voltage which is proportional to a current applied to the light emitting element. A controller compares a comparison voltage output, which is a comparison result of the comparing unit and a predetermined second reference voltage, in order to control the switch to be switched on and off. Accordingly, the present invention provides a display apparatus and control method which precisely controls a size of a current applied to a light emitting element.

REFERENCES:
patent: 6320330 (2001-11-01), Haavisto et al.
patent: 2006/0022607 (2006-02-01), Hsu
patent: 09-021998 (1997-01-01), None
patent: 11-109919 (1999-04-01), None
patent: 2003151784 (2003-05-01), None
patent: 1020030096701 (2003-12-01), None
patent: 1020040101654 (2004-12-01), None

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