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Drive circuit and method for scanning electrode of plasma display

A plasma display and scanning electrode technology, applied to static indicators, instruments, etc., can solve the problems of high cost and complex scanning electrode drive circuit, and achieve the effect of saving cost and reducing complexity

Inactive Publication Date: 2012-12-12
SICHUAN COC DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The present invention aims to provide a scanning electrode driving circuit and method for plasma displays, which can solve the problems of the existing scanning electrode driving circuit being relatively complex and costly

Method used

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  • Drive circuit and method for scanning electrode of plasma display
  • Drive circuit and method for scanning electrode of plasma display
  • Drive circuit and method for scanning electrode of plasma display

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Embodiment Construction

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] Figure 6 It shows a scanning electrode driving circuit according to an embodiment of the present invention, including:

[0036] The scanning chip 10 includes a high-voltage input terminal YP, a reference voltage input terminal YG, and an output terminal Yout, which are used to switch the output voltage of YP or YG to generate a driving waveform of the scanning electrode, and each cycle includes:

[0037] Preparation period, including: stage ①, GND; stage ②, rising edge; stage ③, rising slope; stage ④, falling edge; stage ⑤, falling slope;

[0038] The addressing period includes: stage ⑥, scanning step voltage, which is GND; stage ⑦, negative pulse; stage ⑧, scanning step voltage, which is GND;

[0039] Sustain period, including: phase ⑨, sustain pulse rising edge; phase ⑩, sustain pulse falling edge;

[0040] Grounding mod...

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Abstract

The invention provides a drive circuit and a method for a scanning electrode of a plasma display. The circuit comprises a scanning chip, a grounding module, a Vs module and a Vsc module, wherein the scanning chip comprises a high-voltage input end YP, a reference voltage input end YG and an output end and is used for switching the voltage output to the YP or the YG so as to generate a drive waveform of the scanning electrode; the grounding module is used for providing the GND of stages (1), (4), (6), (8) and (10) for the YG; the Vs module is used for providing the voltage Vs of stages of (3) and (9) for the YG; and the Vsc module is used for providing the voltage Vsc of a stage (2) for the YP and providing the -Vsc of stages (5) and (7) for the YG. The invention simplifies the drive circuit and saves the cost.

Description

technical field [0001] The invention relates to the field of plasma displays, in particular to a scanning electrode driving circuit and method for plasma displays. Background technique [0002] The color alternating current plasma display (AC-PDP) is developed according to the basic principle of gas discharge, and the ultraviolet light emitted by the gas discharge excites the phosphor to emit light to realize the display. At present, the three-electrode surface discharge type AC-PDP is the most competitive type of PDP. Most of this AC-PDP adopts the addressing and display separation (ADS) technology to realize grayscale display, that is, a TV field is divided into 8 or 10 or 12 sub-fields that emit light successively, each sub-field is composed of a preparation period, an addressing period and a maintenance period, and a 256-level grayscale display can be realized through an appropriate combination of sub-fields. [0003] figure 1 A schematic diagram of the basic structure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/288
Inventor 高岩徐世文
Owner SICHUAN COC DISPLAY DEVICES