Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-04-24
2007-04-24
Eisen, Alexander (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C315S169400
Reexamination Certificate
active
10673417
ABSTRACT:
Provided are an apparatus and a method of driving a high-efficiency plasma display panel for quickly eliminating a free-wheeling current, generated due to the parasitic effect in an energy recovery circuit, thereby improving energy recovery efficiency. The sustain-discharge driving device of a high-efficiency plasma display panel (PDP) includes a sustain-discharge switching unit, which connects charging and discharging paths of an energy recovery unit to the PDP according to a sustain-discharge sequence, and includes an energy recovery unit which, according to an energy recovery sequence, discharges energy of the PDP to an energy accumulation device through a resonance path while in discharging mode, charges the PDP with the energy accumulated in the energy accumulation device through a resonance path while in charging mode, and forms a closed circuit in which the voltage difference between both ends of an inductor is greater than a predetermined value so as to eliminate a free-wheeling current, which is generated in the inductor of the resonance path due to a parasitic effect, during mode transition.
REFERENCES:
patent: 5642018 (1997-06-01), Marcotte
patent: 5808420 (1998-09-01), Rilly et al.
patent: 6897834 (2005-05-01), McCormack
Kim Hye-jeong
Lee Sang-hoon
Roh Chung-wook
Eisen Alexander
Samsung Electronics Co,. Ltd.
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