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Plasma display board driver and driving method thereof

A plasma and driving device technology, applied in static indicators, instruments, etc., can solve the problems of adding capacitors and inductors, and achieve the effect of reducing the number and effectively recovering power

Inactive Publication Date: 2007-01-10
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This existing power recovery circuit utilizes separate circuits for each of the X and Y electrodes, increasing the number of capacitors and inductors, causing ineffective operation of each circuit

Method used

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  • Plasma display board driver and driving method thereof
  • Plasma display board driver and driving method thereof
  • Plasma display board driver and driving method thereof

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[0035] According to the first embodiment of the present invention, assuming that the external capacitor C1 is charged by using the voltage Vs / 2 corresponding to half of the sustain voltage Vs, and the switches X2 and Y2 are turned on, then the X and Y electrode voltages Vx and Vy of the plate capacitor Cp maintain ground voltage.

[0036] In the first mode M1, when switch Y2 is already on, switch XY1 and X-path are on, and switch X2 is off. Then, LC resonance is generated on the path set from the external capacitor C1, switch XY1, inductor L1, and switch X-path to the plate capacitor Cp. According to this LC resonance, the X electrode voltage Vx increases to the sustain voltage Vs. Due to the action of the body diode of the switch X1, the X electrode voltage Vx does not exceed the sustain voltage Vs. In this state, since the switch Y2 has been turned on, the Y electrode voltage Vy maintains the ground voltage.

[0037] According to the second mode M2, when the X electrode v...

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Abstract

In a PDP driver, a sustain part includes first and second switches serially coupled between first and second voltages, and third and fourth switches serially coupled between the first and second voltages. A coupling node of the first and second switches is coupled to one end of the panel capacitor, and a coupling node of the third and fourth switches is coupled to the other end thereof. A charging / discharging part includes an inductor, one end of which is coupled to the coupling node of the first and second switches and the coupling node of the third and fourth switches through first and second paths, and an external capacitor coupled between the other end of the inductor and the second voltage through third and fourth paths.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Patent Application No. 2002-32907 filed with the Korean Intellectual Property Office on June 12, 2002, the contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a driving device and a driving method of a plasma display panel. Background technique [0004] A plasma display panel is a display that selectively excites a plurality of discharge tubes arranged in a matrix to reproduce video data input in the form of electrical signals. The driving method of the plasma display panel is divided into DC (direct current) and AC (alternating current) driving modes according to whether the polarity of the applied voltage for the sustain discharge changes with time or not. [0005] In a plasma display panel of a 3-electrode lateral discharge structure, an address electrode is inserted in a discharge space formed by a barrier layer betwe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/28G09G3/20G09G3/288G09G3/291G09G3/294G09G3/296G09G3/298
CPCG09G2310/066G09G3/294G09G3/2965G09G3/296
Inventor 崔学起
Owner SAMSUNG SDI CO LTD