Television – Video display – Gas discharge
Patent
1998-05-15
2000-06-27
Lee, Michael H.
Television
Video display
Gas discharge
348524, 348521, 327115, 327117, 327151, 327160, H04N 505, H04N 506
Patent
active
060813032
ABSTRACT:
A method and an apparatus for control a timing in a flat panel display system are disclosed. In an alternating current plasma display system for respectively driving a plurality of subfields at every field in three steps such as a) entering and for eliminating a whole pixel for a first predetermined time, b) entering data for a second predetermined time and c) maintaining a discharge at every subfield for times which are different from one another, a first clock generator generates a first clock signal having a high frequency. A second clock generator generates a second clock signal having a low frequency. A first counter counts the second clock signal in response to a vertical synchronizing signal, and generates both a first pulse signal which sets the first and second predetermined times respectively in steps a) and b) in the respective subfield sections and a second pulse signal which sets times in step c) in the respective subfield sections which are different from one another. A second counter counts the second clock signal to detect time intervals of sections in steps a) and b) in response to the first pulse signal. A third counter counts the second clock signal in response to the second pulse signal to detect times in steps c) which are different from one another. A first control signal generator inputs outputs of the second and the third counters and the second clock signal, and generates timing control signals to drive a scan electrode, a maintenance electrode and an address electrode. A second control signal generator inputs both an output of the second counter and the first clock signal, and generates timing control signals to enter data. Consequently, a simplification of the design of the timing control apparatus and the decrease of a noise contribute to a cost reduction along with a reliability of the products.
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Daewoo Electronics Co. Ltd.
Lee Michael H.
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