PLASMA DISPLAY DEVICE AND METHOD FOR DRIVING PLASMA DISPLAY PANEL
First Claim
1. A plasma display device of driving a plasma display panel in accordance with pixel data for each pixel obtained from a video signal, said plasma display panel including a discharge cell formed at each of intersections of a plurality of row electrode pairs and a plurality of column electrodes, the device comprising:
- a phosphor layer formed on a surface of each discharge cell and containing a secondary electron emissive material; and
a drive part for applying a drive pulse to each of said row electrode pairs and said column electrodes in each of a plurality of subfields for a unit display period of said video signal,wherein said drive part uses a pulse waveform of said drive pulse for a period from power-on of said plasma display device to a lapse of a predetermined period of time, different from a pulse waveform of said drive pulse for a period after a lapse of said predetermined period of time.
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Accused Products
Abstract
A plasma display device and a method for driving the plasma display device are provided, wherein deterioration in image quality in a period immediately after power-on can be restrained while improving dark contrast. When driving a PDP, by applying various drive pulses, that includes a phosphor layer containing a secondary electron emissive material in respective discharge cells, drive pulses having different pulse waveforms are generated in a period from power-on of the plasma display device to after a lapse of a predetermined period of time, and in a period after a lapse of the predetermined period of time.
34 Citations
33 Claims
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1. A plasma display device of driving a plasma display panel in accordance with pixel data for each pixel obtained from a video signal, said plasma display panel including a discharge cell formed at each of intersections of a plurality of row electrode pairs and a plurality of column electrodes, the device comprising:
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a phosphor layer formed on a surface of each discharge cell and containing a secondary electron emissive material; and
a drive part for applying a drive pulse to each of said row electrode pairs and said column electrodes in each of a plurality of subfields for a unit display period of said video signal,wherein said drive part uses a pulse waveform of said drive pulse for a period from power-on of said plasma display device to a lapse of a predetermined period of time, different from a pulse waveform of said drive pulse for a period after a lapse of said predetermined period of time.
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2. A method for driving a plasma display panel in accordance with pixel data for each pixel obtained from a video signal, said plasma display panel including a discharge cell formed at each of intersection of a plurality of row electrode pairs and a plurality of column electrodes, and a phosphor layer formed on a surface of each discharge cell and containing a secondary electron emissive material, the method comprising:
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applying a drive pulse to each of said row electrode pairs and said column electrodes in each of a plurality of subfields for a unit display period of said video signal; using a pulse waveform of said drive pulse for a period from power-on of said plasma display device to a lapse of a predetermined period of time, different from a pulse width of said drive pulse for a period after a lapse of said predetermined period of time. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification