CRT display device and method

Details CRT display device and method CRT display device and method

2007-06-26

2007-06-26

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Data responsive crt display control

Crt provides display control

C345S013000

Reexamination Certificate

active

10832350

ABSTRACT:
A CRT (Cathode Ray Tube) display device, and method, having a FBT (Fly Back Transformer) with a conductive coil, and a step-up circuit supplying a predetermined power to the FBT The CRT includes a high voltage sensor sensing a voltage applied to the step-up circuit and a controller receiving the voltage outputted from the FBT and controlling an input voltage of the step-up circuit to be dropped when the received voltage from the FBT is higher than a predetermined dangerous voltage. With this configuration, the present invention provides the CRT display device that decreases an input voltage of a step-up circuit to operate normally and to prevent elements of the step-up circuit from being destroyed.

REFERENCES:
patent: 5304898 (1994-04-01), Kataoka et al.
patent: 5430596 (1995-07-01), Hamaguchi et al.
patent: 5952795 (1999-09-01), Kofune et al.
patent: 57-2165 (1982-01-01), None
patent: 4-150379 (1992-05-01), None
patent: 9-30779 (1997-02-01), None
patent: 01-24440 (1998-09-01), None
patent: 1999-0028838 (1999-07-01), None
Korean Office Action for Korean Applicaton 10-2003-0044899.

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