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Driving method of plasma display device

A technology of plasma display and driving method, applied in the direction of static indicators, instruments, etc., to achieve the effect of reducing power consumption

Inactive Publication Date: 2011-04-06
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] A method for driving a plasma display device includes a plurality of combination sets for display with different numbers of combinations, compares the respective signal levels of a red image signal, a green image signal, and a blue image signal, and targets an image signal of a color with a smaller relative signal level , using a combination set for display whose number of combinations is smaller than the combination set for display used for an image signal of a color with a relatively large signal level, and when the power consumption of the data electrode driving circuit is large, the number of combinations used is less than When the power consumption of the data electrode driving circuit is small, there are few display combination sets used for image signals

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  • Driving method of plasma display device
  • Driving method of plasma display device
  • Driving method of plasma display device

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Embodiment approach 1

[0046] Hereinafter, a plasma display device according to an embodiment of the present invention will be described with reference to the drawings. figure 1 It is an exploded perspective view showing the configuration of panel 10 of the plasma display device according to Embodiment 1 of the present invention. A plurality of display electrode pairs 24 including scan electrodes 22 and sustain electrodes 23 are formed on front substrate 21 made of glass. Furthermore, a dielectric layer 25 is formed to cover the display electrode pair 24 , and a protective layer 26 is formed on the dielectric layer 25 . A plurality of data electrodes 32 are formed on rear substrate 31 , and dielectric layer 33 is formed to cover data electrodes 32 , and grid-shaped barrier ribs 34 are further formed on dielectric layer 33 . Further, a red-emitting phosphor layer 35R, a green-emitting phosphor layer 35G, and a blue-emitting phosphor layer 35B are provided on the side surfaces of the barrier ribs 34 ...

Embodiment approach 2

[0119]Since the configuration of the panel, the driving voltage waveform applied to the electrodes, and the like are the same as those in Embodiment 1, description thereof will be omitted. In Embodiment 2, each coding table used for an image signal of each color is selected from four coding tables and used. In addition, in addition to the relative signal level of the image signal of each color, based on the absolute signal level of the image signal, the spatial difference of the image signal of each color, the time difference of the image signal of each color, and the data driver 42(1) ~42(16) power consumption, select each coding table used for the image signal of each color.

[0120] Figure 10A , 10B , 10C, 10D, 10E, and 10F are diagrams showing code tables used in plasma display device 40 according to Embodiment 2 of the present invention. Figure 10A , 10B is the combined first code table with 90 subfields, with Figure 5A , 5B , 5C shown in the first coding table i...

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Abstract

Provided is a method of driving a plasma display device, wherein a plurality of display combination sets which have different numbers of combinations are utilized. According to the method, respective signal levels of a red image signal, a green image signal, and a blue image signal are compared with one another, and for an image signal of the color having a relatively low signal level, a display combination set having less number of combinations than that used for an image signal of the color having a relatively high signal level is used. Further in the method, if a data electrode driving circuit has high power consumption, a display combination set having less number of combinations is used than that used for an image signal when the data electrode driving circuit has low power consumption.

Description

technical field [0001] The present invention relates to a driving method of a plasma display device using an AC type plasma display panel. Background technique [0002] A typical plasma display panel (hereinafter, abbreviated as "panel") as an image display display having a plurality of pixels arranged in a planar shape has a plurality of discharge cells (cells) having scan electrodes, sustain electrodes, and data electrodes formed. ). The panel excites phosphors to emit light by gas discharge generated inside each discharge cell, thereby performing color display. [0003] In a plasma display device using such a panel, a sub-field method is mainly used as a method of displaying an image. This is a method of displaying an image by controlling light emission or non-light emission of each discharge cell in each subfield in which one field period is constituted by a plurality of subfields with predetermined luminance weights. [0004] The plasma display device includes: a sca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/28G09G3/20G09G3/288G09G3/291G09G3/292G09G3/293G09G3/294G09G3/298
CPCG09G2320/0266G09G2330/025G09G2330/021G09G2310/06G09G3/288
Inventor 山田和弘
Owner PANASONIC CORP