Gray display method and device for plasma display panel
AssigneeSamsung SDI Co., Ltd.
InventorsTae-Kyong Kwon, Sang-Chul Kim
Life of this patent
Estimating the term…
Abstract
A method for displaying gray levels in a PDP by generating gray data corresponding to externally input image signals and displaying the gray data on the PDP is disclosed. The method comprises generating reference signals based on the image signals, determining a spread filter value according to states of the reference signals, applying the spread filter value to the gray data and generating final gray data, and displaying the final gray data on the PDP. The present invention reduces contour noise generated between moving pictures' adjacent grays.
Claims17
A method for displaying a gray level in a plasma display panel (PDP) by generating gray data corresponding to externally input image signals and displaying the gray data on the PDP, comprising steps of:
- generating reference signals using the image signals;
- determining a spread filter value according to states of the reference signals;
- applying the spread filter value to the gray data and generating final gray data;
- and
- displaying the final gray data on the PDP.
A plasma display panel (PDP) gray display, comprising:
- an image signal processor for receiving external image signals and converting the external image signals into digital image data;
- a first reference signal generator for generating first reference signals for processing image signals on the basis of the external image signals;
- and
- a sub-field coder that applies spread filter values to gray data corresponding to the digital image data to generate final gray data.
A method for displaying a gray level in a plasma display panel (PDP) by generating gray data corresponding to externally input image signals, comprising steps of:
- determining a spread filter value according to an even field and an odd field, wherein a spread filter value of the even field and a spread filter value of the odd field are different;
- applying the respective spread filter values to the gray data and generating final gray data;
- and
- displaying the final gray data on the PDP.
Dependencies are inferred from the claim text.