Method for improving scan pulse voltage to reduce power consumption

A technology of scanning pulse and voltage reduction, which is applied in the field of reducing power consumption of ion display screens, can solve problems such as excessive power consumption, increased power consumption, and reduced voltage margin, so as to improve voltage margin, improve image quality, and reduce The effect of power consumption

Inactive Publication Date: 2008-12-31
四川世纪双虹显示器件份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the selected scan pulse voltage is often too large, resulting in increased power consumption and reduced voltage margin

Method used

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  • Method for improving scan pulse voltage to reduce power consumption
  • Method for improving scan pulse voltage to reduce power consumption
  • Method for improving scan pulse voltage to reduce power consumption

Examples

Experimental program
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Embodiment Construction

[0021] Such as figure 1 As shown, the PDP is driven by a plurality of subfields, and the gray level of the PDP screen is represented by the number of light emitted by each subfield. Each subfield is divided into an initialization period, an address period, and a sustain period. The initialization period is to erase the discharge generated during the sustain period and to make the wall charges of the discharge cells uniform; the address period is to add a scan pulse voltage to the discharge cells to be lit according to the signal given by the external image; The discharge cells of the pulse voltage perform sustain discharge. figure 1 The driving waveform diagram generated by the X-sustain circuit, the driving waveform diagram generated by the Y-scan circuit, the driving waveform diagram generated by the A-addressing circuit, Yp-the first step voltage, -Vy-negative voltage.

[0022] figure 2 A schematic diagram of the Y drive circuit. In the figure, the forming circuit duri...

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PUM

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Abstract

The invention discloses a method for improving the scanning pulse voltage and reducing power consumption. By improving the scanning pulse voltage and adjusting the step voltage of the scanning driving voltage, the purpose of increasing voltage margin and reducing power consumption is finally achieved. Each subfield is divided into an initialization period, an address period, and a sustain period. The formation circuit during the initialization period is composed of the formation circuit b of the rising edge of the ramp and the formation circuit c of the falling edge of the ramp; the formation circuit during the addressing period is composed of a step voltage The formation circuit d of Yp, the formation circuit g of negative pressure-Vy and the scanning chip e are formed; the formation circuit during the maintenance period is composed of the energy recovery circuit a; the invention can increase the voltage margin, reduce power consumption, and improve image quality.

Description

technical field [0001] The invention relates to a method for reducing power consumption of a color plasma display screen, in particular to a method for reducing power consumption by improving scanning pulse voltage. Background technique [0002] Currently, plasma televisions (PDPs), which are newly developed among large flat panel displays, are attracting attention. PDP uses the principle of gas discharge to realize graphic display. The principle is to add voltage to the address electrodes, scan electrodes, and sustain electrodes of the discharge cells forming pixels, and adjust the voltage to cause discharge, forming ultraviolet rays to impact red, green, Blue three kinds of phosphors, and form the image. [0003] The function of the addressing period is to add a scan pulse voltage to the discharge cell to be lit, and the scan pulse voltage is the difference between the second step voltage Ypout and the negative voltage -Vy. The value of the scan pulse voltage is related ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/28G09G3/20H01J17/49G09F9/313G09G3/293G09G3/294
Inventor 徐世文
Owner 四川世纪双虹显示器件份有限公司
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