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Drive method of plasma display device

A technology of a plasma display and a driving method, which is applied to static indicators, instruments, identification devices, etc., can solve the problems of shortening the life of the plasma display, residual images, etc., and achieve the effects of reducing heat generation, prolonging life, and reducing generation

Inactive Publication Date: 2007-12-05
LG ELECTRONICS(NANJING) PLASMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the plasma display aging treatment, the relatively unheated lower phosphor is heated, shortening the life of the plasma display
At the same time, plasma displays have the problem of bright afterimages on the display surface due to the lower phosphor emitting light that takes a relatively long time to return to a stable state after discharge.

Method used

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  • Drive method of plasma display device
  • Drive method of plasma display device
  • Drive method of plasma display device

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Experimental program
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Embodiment Construction

[0049] Hereinafter, the driving method of the plasma display of the present invention will be described in detail with reference to the accompanying drawings.

[0050] FIG. 9 is a schematic diagram of driving waveforms of the driving method of the plasma display according to the present invention. As shown in the figure, the driving waveform of the driving method of the plasma display according to the present invention is to apply the bright sticking image prevention voltage Va to the address electrode during the sustain period when the sustain discharge occurs between the scan electrode and the sustain electrode. At this time, the reference of the afterimage prevention voltage Va applied to the address electrodes is the magnitude of the average picture level (Average Picture Level). That is, in the sustain period in which sustain discharge occurs between the scan electrodes and the sustain electrodes, the bright sticking image prevention voltage Va is applied to the address e...

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Abstract

The invention discloses a driving method of plasma display, which is characterized by the following: modifying the maintaining waveshape during maintaining period; preventing the maintaining discharge between scanning electrode and maintaining electrode from guiding to address-searching electrode direction during maintaining period; reducing the residual image obviously; utilizing at least one subfield combination to display multi-frame image of address-searching electrode, scanning electrode and extra voltage of maintaining electrode during reset period, address-searching period and maintaining period; exerting the voltage (Va) to the address-searching electrode to prevent residual image according to the Average Picture Level during the maintaining period of at least one subfield in the multiple subfields.

Description

technical field [0001] The present invention relates to plasma displays. In particular, it relates to a driving method of a plasma display which improves sustain waveforms applied during a sustain period and reduces bright afterimages. Background technique [0002] In general, the partition wall between the front panel and the rear panel of a plasma display forms a unit cell, and each cell is filled with a mixed gas of neon (Ne), helium (He) or neon-helium (Ne+He) and such discharge gas and an inert gas containing a small amount of xenon. When the high voltage is discharged, the inert gas emits vacuum ultraviolet rays (Vacuum Ultraviolet rays), which can make the phosphors in the partition walls emit light, thereby displaying images. Therefore, the plasma display is attracting attention as a next-generation symbol product with its thin and light structure. [0003] FIG. 1 is a schematic diagram of the structure of a general plasma display. As shown in the figure, a plura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/28G09G3/20H01J17/49G09F9/313G09G3/288
Inventor 李炳俊
Owner LG ELECTRONICS(NANJING) PLASMA CO LTD