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Plasma display panel drive method and plasma display device

A technology of display panel and driving method, applied in static indicators, instruments, etc., can solve problems such as unstable writing action

Inactive Publication Date: 2013-09-25
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In a high-definition large-screen panel, the number of electrodes that must be driven increases, and the impedance during driving also increases, so there is a tendency that the writing operation tends to become unstable.

Method used

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  • Plasma display panel drive method and plasma display device
  • Plasma display panel drive method and plasma display device
  • Plasma display panel drive method and plasma display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0053] figure 1 It is an exploded perspective view showing the structure of panel 10 used in the plasma display device in Embodiment 1 of the present invention.

[0054] On front substrate 21 made of glass, a plurality of display electrode pairs 24 including scan electrodes 22 and sustain electrodes 23 are formed. Furthermore, dielectric layer 25 is formed to cover scan electrodes 22 and sustain electrodes 23 , and protective layer 26 is formed on dielectric layer 25 .

[0055] In order to facilitate discharge in the discharge cells, protective layer 26 is formed of a material having high electron emission performance, that is, a material mainly composed of magnesium oxide (MgO).

[0056] The protective layer 26 may consist of one layer, or may consist of multiple layers. In addition, a structure in which particles exist on a layer may also be used.

[0057] A plurality of data electrodes 32 are formed on rear substrate 31 , dielectric layer 33 is formed so as to cover data...

Embodiment approach 2

[0179] In Embodiment 1, an example was described in which panel 10 was driven by setting the number of times of performing the all-cell initialization operation to one in one field. However, the present invention is not limited to this structure. For example, it is also applicable to a configuration in which panel 10 is driven by setting the number of times to perform the all-cell initialization operation once in multiple fields, and even in this case, the same effect as described above can be obtained.

[0180] In the driving method in which the number of times of the all-cell initialization operation is set to one in multiple fields, compared with the structure in which the all-cell initialization operation is performed once in one field, the light emission accompanying the all-cell initialization operation can be reduced, It is possible to reduce the black luminance (the luminance of the gradation at which sustain discharge does not occur), and it is possible to increase th...

Embodiment approach 3

[0286] In Embodiment 1 and Embodiment 2, the configuration in which the maximum voltage of the upward erasing ramp voltage L3 is set to the voltage Vr lower than the voltage Vs in all subfields has been described. However, the present invention is not limited to this configuration, and may be a configuration in which an upward erasing ramp voltage that rises to a voltage equal to or higher than the voltage Vs is generated.

[0287] The inventors of the present application have confirmed that, for the last subfield of one field, an upward ramp waveform voltage that rises to a voltage equal to or higher than voltage Vs is applied to scan electrode SC1 to scan electrode SCn instead of upward erase ramp voltage L3, thereby enabling more stable A write action occurs.

[0288] This is considered to be because, in the subfield with a large number of sustain pulses generated in the sustain period, the wall charges and trigger particles generated in the sustain operation are excessive,...

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PUM

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Abstract

The purpose of the present invention is to perform stable write operations even when driving a high-definition large-screen plasma display panel. To that end, this plasma display panel drive method drives a plasma display panel provided with multiple discharge cells having a data electrode and a display electrode pair consisting of a scan electrode and a sustain electrode, wherein one field is configured from multiple subfields having a write period for generating a write discharge in a discharge cell which is to emit light, and a sustain period for applying to the display electrode pair a sustain pulse that changes from a base potential to a voltage which generates a sustain pulse in the discharge cell which has generated a write discharge. After generation of the final sustain pulse in the sustain period, an upward sloping waveform voltage rising from the base potential to a prescribed voltage is applied to the scan electrode, and this prescribed voltage is set to less than the voltage of the sustain pulse.

Description

technical field [0001] The present invention relates to a plasma display device using an AC surface discharge type plasma display panel and a method for driving the plasma display panel. Background technique [0002] As a typical plasma display panel (hereinafter, simply referred to as "panel"), a typical AC surface discharge type panel has a plurality of discharge cells formed between a front substrate and a rear substrate that are arranged to face each other. [0003] In the front substrate, a plurality of pairs of display electrodes including one pair of scan electrodes and sustain electrodes are formed parallel to each other on the glass substrate on the front side. Furthermore, a dielectric layer and a protective layer are formed to cover these display electrode pairs. [0004] In the rear substrate, a plurality of parallel data electrodes are formed on a rear glass substrate, a dielectric layer is formed to cover these data electrodes, and a plurality of barrier ribs ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/294G09G3/28G09G3/288G09G3/291G09G3/292G09G3/296G09G3/298
CPCG09G3/2022G09G2310/066G09G2320/0228G09G2320/0238G09G3/2927G09G3/296
Inventor 盐崎裕也折口贵彦斋藤鲇彦坂井雄一今井佑纪
Owner PANASONIC CORP