Plasma display panel driving apparatus, signal processing method for plasma display panel and image display apparatus for plasma display panel
OwnerDae Myoung, Seong Mooninventors
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Abstract
A plasma display panel (PDP) driving apparatus, a signal processing method for PDP and an image display apparatus for PDP are disclosed, wherein a load effect caused by a shape of an image displayed on the PDP in displaying image corresponding to inputted image data on the PDP to thereby enable to display an even picture quality regardless of the shape of the image. In order to accomplish this object, the PDP driving apparatus reflects a ratio between a horizontal component load and a vertical component load and an entire load as well to thereby compensate the number of sustain pulses of subfield mapping data.
Claims15
A signal processing method for PDP comprising:
- calculating a sustain compensation coefficient based on an entire load of subfield mapping data having a predetermined number of sustain pulses;
- adjusting the sustain compensation coefficient based on a ratio of a horizontal component and a vertical component of the load;
- and adding the adjusted sustain compensation coefficient to the predetermined number of sustain pulses to compensate the subfield mapping data.
A PDP driving apparatus comprising:
- a subfield mapping unit to generate a subfield mapping data having a predetermined number of sustain pulses corresponding to input image data;
- a signal processing unit to add to the predetermined number of sustain pulses a sustain compensation coefficient calculated based on an entire load of the subfield mapping data to compensate the subfield mapping data, the calculated sustain compensation coefficient adjusted based on a ratio of a horizontal component and a vertical component of the load;
- a timing controller to generate predetermined timing control signals based on the number of sustain pulses of the compensated subfield mapping data;
- and a driving unit to drive the PDP based on the timing control signals generated by the timing controller.
A PDP driving method comprising:
- mapping a subfield having a predetermined number of sustain fields onto a frame expressing an image information;
- and adjusting a predetermined number of sustain pulses corresponding to the subfield mapping data based on a ratio of a horizontal component and a vertical component of an entire load of the image data.
Dependencies are inferred from the claim text.