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Plasma display apparatus and plasma display panel driving method

A technology for plasma and display devices, which can be used in measuring devices, static indicators, thermometer parts, etc., and can solve problems such as low vertical resolution.

Inactive Publication Date: 2009-02-11
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, in the structure described in the above-mentioned Japanese Patent Application Laid-Open No. 2003-233346, since the two wires emit light at the same time at the same brightness, although it is improved compared to the Japanese Patent Laid-Open No. 10-133621, there is still a vertical gap. low resolution issues

Method used

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  • Plasma display apparatus and plasma display panel driving method
  • Plasma display apparatus and plasma display panel driving method
  • Plasma display apparatus and plasma display panel driving method

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Embodiment 2

[0154] Fig. 11 is a block diagram showing a plasma display device in Embodiment 2 to which the present invention is applied. In addition, the same reference numerals are assigned to the same constituent elements as those in the first embodiment, and redundant description thereof will be omitted.

[0155] In FIG. 11, the plasma display device of Embodiment 2 includes an A / D converter 10, a halftone generation circuit 20, an SF (subfield) conversion circuit 30, a vertical synchronization monitoring unit 40, a display load rate calculation unit 50, a light emitting Brightness ratio calculation processing unit 60, sustain pulse number distribution unit 70, drive signal generation circuit 80, vertical synchronization 1-line shift selection switch 90, scan electrode drive circuit 100, sustain electrode drive circuit 110, address electrode drive circuit 120, display panel 130 , and a temperature monitoring unit 140 .

[0156] The plasma display device in the second embodiment is dif...

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Abstract

A disclosed plasma display apparatus and a plasma display panel driving method provide improved luminance while preventing decrease in resolution. In the plasma display apparatus, which is adapted to the display of an interlace signal, the maximum number of sustain pulses associated with the emission of light that can be made in one field is calculated, based on the vertical synchronization signal frequency of the input signal. A display load factor of the input signal in the one field is calculated and, based on the calculated display load factor, a target number of sustain pulses in the one field is determined. Based on a relationship between the target number of sustain pulses and the maximum number of sustain pulses, an emission luminance ratio of a sub-display line to a main-display line in the one field is determined.

Description

technical field [0001] The present invention relates to a plasma display device and a driving method of a plasma display panel, in particular to passing the data of one line of an input signal in an interlaced (interlace) mode through two adjacent main display lines and sub display lines. A plasma display device and a driving method of a plasma display panel displaying simultaneously in groups of roots. Background technique [0002] Conventionally, an ALIS (Alternate Lightning Of Surface) type plasma display device (hereinafter referred to as a "PDP device") is known. FIG. 17 is a circuit block diagram of a conventional ALIS system PDP apparatus. In FIG. 17, the plasma display panel 310 is provided with a plurality of X electrodes (X1, X2, X3, . . . , X5) and Y electrodes (Y1, Y2, Y3, . A plurality of address electrodes ( A1 , A2 , A3 , . . . , Am) arranged in the intersecting direction have phosphors arranged at the intersecting portions of the electrodes, and discharge g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/28G09G3/288H01J17/49G09G3/20G09G3/291G09G3/294G09G3/298G09G3/299H04N5/66
CPCG09G3/299G09G3/2059G09G2360/16G09G3/2044G09G2320/0266G09G2320/041G09G2330/045G09G2310/0245G09G2310/0224G09G3/296G01K1/00G09G3/291
Inventor 竹内正宪桥本康宣黄木英明木村雄一郎糸川直树野口泰司
Owner HITACHI LTD