Pixel point scanning method of plasma display

Abstract

The invention relates to a pixel scanning method of a plasma display panel, in particular to a plasma display panel video image data scanning and displaying method capable of reducing power consumption of a plasma display panel. The pixel scanning method of the of the plasma display panel can be summarily includes: firstly, controlling a line scanning mode and column scanning data so as to reduce power consumption of the plasma display panel; secondly, calculating flipping number of data of the n-1th line and the nth line and flipping number of data of the n-2th line and the nth line and comparing the flipping number of the data of the n-1th line and the nth line with the flipping number of the data of the n-2th line and the nth line so as to determine to use a progressive scanning mode or an interlaced scanning mode; and thirdly, calculating flipping number of data of each two adjacent sub-pixels in the same line and classifying thresholds so as to determine a display maintenance control mode. The pixel scanning method of the plasma display panel has the advantages that data flipping rate and dynamic power consumption of a column scanning drive chip are decreased effectively, so that overall power consumption of the PDP (plasma display panel) is decreased, and service life of the PDP is prolonged. Additionally, the pixel scanning method of the plasma display is particularly applicable to plasma display panels.

Description

technical field [0001] The present invention relates to a pixel point scanning method of a plasma display, in particular to a method for scanning and displaying video image data of a plasma display which can reduce the power consumption of the plasma display. Background technique [0002] The pixel point scanning method of the current plasma display (PDP, PlasmaDisplayPanel) is: during the line scanning period (addressing period), the column scanning provides data to determine the on / off of the pixel points of the scanning line, thereby controlling the display content in the line direction; when completed After one line of pixel data is displayed, start to scan the next line of pixel points until the last line, that is, the display of one frame of image is completed. PDP adopts a sub-frame driving technology, which divides the period of one frame of image into several sub-frames, and the number of sub-frames depends on the number of bits quantized by the sign video signal. ...

AI Technical Summary

Problems solved by technology

The column scan is mainly carried out by the column description driver chip. The dynamic power consumption of the column scan driver chip is reflected in its data flip rate, thus affecting the power consumption of the PDP machine

Suppose an interlaced data image is displayed (odd lines are lit, even lines are not lit), and when a subframe is displayed in a progressive scan mode, the column scan driver chip needs to be flipped 768 times, and a frame of image is flipped 768*10=7680 times in total At this time, the data turnover rate and dynamic power consumption of the column scanning driver chip are very large, and long-term work like this will reduce the life of the PDP

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