Driving method for addressing drive and reducing dynamic pseudo contour influence

A driving method and pseudo-contour technology, applied to static indicators, instruments, identification devices, etc., can solve problems such as brightness drop, achieve the effects of increasing brightness and contrast, reducing the number of sub-fields, and prolonging the maintenance time

Inactive Publication Date: 2006-03-22
四川世纪双虹显示器件份有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

If the added subfield is the same as the original subfield, the gray level can only be increased by one level for each additional subfield, but the decrease in brightness caused by the increase of the subfield is very significant.

Method used

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  • Driving method for addressing drive and reducing dynamic pseudo contour influence
  • Driving method for addressing drive and reducing dynamic pseudo contour influence
  • Driving method for addressing drive and reducing dynamic pseudo contour influence

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Experimental program
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Embodiment Construction

[0018] The subfield structure in Figure 1 is the CLEAR mode, which divides a TV field into several subfields (12 subfields in the figure), among which there are reset / preparation period, address period and sustain period except for the first subfield Besides, the other subfields only have the address period and sustain period.

[0019] Among Fig. 2 is the subfield structure of the present invention, and it divides an image field into main grayscale subfield SF namely SF1, SF2, SF3...SF7, auxiliary grayscale subfield F namely F1, F2, F3 and compensation grayscale Degree subfield B; except the first main grayscale subfield includes preparation / reset period, scan period and sustain period, each other main grayscale subfield only includes scan period and sustain period, the length of sustain period is the same, and the luminescence from The first main grayscale subfield starts to be arranged continuously; the auxiliary subfield is added in front of the main grayscale subfield, and...

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Abstract

The present invention discloses one kind of driving method of addressing drive and reducing dynamic pseudo contour influence. On the basis of CLEAR technology, one image field is divided into main grey sub-field, auxiliary grey sub-field and compensating grey sub-field. Except the first main grey sub-field, with includes ready / restoring stage, scan stage and holding stage, each of the other main grey sub-fields includes scan stage and holding stage only, all the holding stages are in the same length, and the emitted light beams are arranged continuously from the first main grey sub-field. The auxiliary grey sub-field and the compensating grey sub-field are added to before and / or after the main grey sub-field, and have erasing drive method the same as that in CLEAR drive technology. The present invention has reduced sub-field number, great saving in addressing time, prolonged holding time and raised brightness and contrast.

Description

technical field [0001] The invention relates to a driving method of a large-screen plasma display device, in particular to a driving method for addressing driving and reducing the influence of dynamic false contours. Background technique [0002] The discharge unit of PDP (Color Plasma Display) only has two states of discharge light and extinguishment, so the grayscale display cannot be realized by controlling the voltage and adjusting the light intensity like the traditional CRT. Instead, it is realized by adjusting the number of pulses that each unit generates discharge light in a field by using the accumulation of light sensed by the human eye against time in a short period of time. The specific method is to divide a TV field into several subfields, such as 8 subfields whose brightness information weights are coded in binary, and selectively combine the subfields to display 256 gray levels. This method can reproduce static images very well, but there will be disturbance ...

Claims

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Application Information

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