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Drive method for plasma display panel and plasma display device

A plasma and display panel technology, used in static indicators, instruments, etc., can solve the problems of no reset discharge, unstable reset discharge, unsuitable for display, etc., and achieve the effect of improving performance and stabilizing display characteristics

Inactive Publication Date: 2009-05-20
FUJITSU HITACHI PLASMA DISPLAY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the number of sustains in the sustain period is relatively small, since the above-mentioned sustain discharge enters the operation in the reset period in an unstable state, the reset discharge also becomes unstable.
Therefore, it is easy to cause unsuitable display such as not performing reset discharge in the target cell.

Method used

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  • Drive method for plasma display panel and plasma display device
  • Drive method for plasma display panel and plasma display device
  • Drive method for plasma display panel and plasma display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0028] Below, we refer to Figure 1 to Figure 8 On the one hand, the PDP device according to Embodiment 1 of the present invention will be described. Embodiment 1 is characterized in that a two-stage rectangular wave is used as the reset waveform, and the second stage of the rectangular wave is adjusted according to the number of sustains in the immediately preceding subfield (abbreviated as SF). The timing of the ascent is advanced.

[0029]

[0030] First, in figure 1 In the following, the overall configuration of the PDP apparatus (PDP module) 100 will be described. The present PDP device 100 is configured to mainly include a PDP (display panel) 10 and a circuit unit for driving and controlling it. The structure of the PDP module is that the PDP 10 is attached and held on a chassis portion (not shown), and the circuit portion is composed of an IC or the like, and the PDP 10 and the circuit portion are electrically connected. Furthermore, a PDP device (product unit) is...

Embodiment approach 2

[0076] Next, we refer to Figure 9~ Figure 12 On the other hand, the PDP device according to Embodiment 2 of the present invention will be described. In the second embodiment, the basic structure is the same as that of the first embodiment, and it is characterized in that a three-step rectangular wave is used as the reset waveform, and the third step of the rectangular wave is made according to the number of sustains in the immediately preceding SF. The timing of segment rise is advanced.

[0077]

[0078] Below, in Figure 9, Figure 10 , the reset operation and control in Embodiment 2 will be described. In FIG. 9, the first reset waveform in SF30-2 is shown when the immediately preceding SF30-1 has a large number of sustains (the first condition). Figure 6 Among them, in SF30-2 when the number of sustains of the immediately preceding SF30-2 is small (the second condition), (a) the first reset waveform that does not change as in the prior art, (b) the second res...

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PUM

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Abstract

Problems to be solved are to improve a performance of a reset operation by a reset waveform using a stepwise rectangular wave in sub-field driving control of a PDP device, so that a stable display characteristic is obtained. A PDP driving method uses a reset waveform including rectangular waves that stepwise rise up at a plurality of steps at the reset operation in the sub-field driving control and shifts an applying timing of a part of waveforms of not less than one step from the second step or later in the rectangular waves in response to the number of sustaining prior to the reset operation.

Description

technical field [0001] The present invention relates to the technology of a display device (plasma display device, PDP device) equipped with a plasma display panel (PDP), and particularly relates to a reset operation in subfield (subfield) drive control. Background technique [0002] In the field (field) and subfield drive control of the existing PDP device, there is a technique of applying a reset waveform using a rectangular wave that rises step by step in multiple (n) stages (levels) as an operation in the reset period. . In this reset waveform technique, regardless of the number of sustains (the number of sustain discharges or the number of unit sustain pulse applications) in the sustain period before reset, the application timing and waveform shape are generally constant. [0003] As a technique of using a reset waveform of a rectangular wave that rises in the above-mentioned multiple stages, there is, for example, the technique described in Japanese Patent Application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/288G09G3/28G09G3/20G09G3/291G09G3/292G09G3/294G09G3/296G09G3/298
CPCG09G3/2927G09G3/296G09G3/294G09G3/2022
Inventor 高木彰浩坂本哲也
Owner FUJITSU HITACHI PLASMA DISPLAY LTD