Cooling apparatus of plasma display panel and method for stabilizing plasma display panel
AssigneeLG Electronics Inc.
InventorByung Joon Rhee
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Abstract
A cooling apparatus of a plasma display panel and a method for stabilizing the PDP to minimize the residual image on the display are disclosed. In particular, the present invention minimizes the residual image that is generated due to the degeneration of phosphors caused by a high voltage and a high temperature.
Claims16
A method for driving a plasma display panel (PDP) configured to display gray levels of an input video signal, the method comprising:
- obtaining a luminance value and a color coordinate value of the PDP corresponding to a variation in temperature of the PDP;
- determining an allowable duration of a residual image based on the obtained luminance value and color coordinate value of the PDP and the corresponding variation in temperature;
- determining an allowable temperature range of the PDP which corresponds to the determined allowable duration of a residual image;
- and
- reducing a number of sustain pulses supplied to the PDP if a temperature of the PDP exceeds the allowable temperature range.
An apparatus for driving a plasma display panel (PDP) configured to display grey levels of an input video signal, the apparatus comprising:
- a memory device that stores an allowable temperature range of the PDP which corresponds to an allowable duration of a residual image with respect to a luminance value and a color coordinate value of the PDP associated and a variation in temperature of the PDP;
- a power control portion that reduces a number of sustain pulses supplied to the PDP if a temperature of the PDP exceeds the allowable temperature range;
- and
- a panel driving portion that supplies the reduced number of sustain pulses to the PDP.
A method for driving a plasma display panel (PDP) displaying gray levels of an inputted video signal, the method comprising:
- obtaining a luminance value and a color coordinate value of the PDP;
- determining an allowable temperature range which corresponds to an allowable duration of a residual image with respect to the luminance value and the color coordinate value of the PDP;
- and
- reducing a number of sustain pulses supplied to the PDP if a temperature of the PDP exceeds the allowable temperature range.
A method for driving a plasma display panel (PDP) displaying gray levels of an inputted video signal, the method comprising:
- obtaining a luminance value and a color coordinate value of the PDP;
- determining an allowable duration of a residual image according to the obtained luminance value and color coordinate value of the PDP;
- and
- reducing a number of sustain pulses supplied to the PDP if a displaying time of an image on the PDP exceeds the allowable duration.
Dependencies are inferred from the claim text.