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Method for modulating scrambling distribution and mixed insertion scanning of time slices of flat-panel display screen

A modulation method and time-slicing technology, applied in static indicators, instruments, etc., can solve problems such as reducing image display quality, achieve the effect of improving display quality and eliminating false contour stripes

Active Publication Date: 2012-06-13
CHANGCHUN CEDAR ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the display grayscale data in the adjacent area jumps in the extended weight time segment, the resulting motion gray level distortion far exceeds the jumping effect of other time slices, mainly to make relatively smooth moving images in fast motion. A series of false contour stripes that degrades the display quality of the image

Method used

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  • Method for modulating scrambling distribution and mixed insertion scanning of time slices of flat-panel display screen
  • Method for modulating scrambling distribution and mixed insertion scanning of time slices of flat-panel display screen
  • Method for modulating scrambling distribution and mixed insertion scanning of time slices of flat-panel display screen

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] Embodiment 1: Distributed mixed insertion of 14bit (SW=5) mixed weight time slices by adopting the positive sequence continuous arrangement method of blanking weight time slices

[0104] For the first group of mixed weight time slices of 14 bits (SW=5), the method of sequentially arranging the blanking weight time slices is used to distribute and interpolate them.

[0105] First, the blanking weight time slice M b Arranged in descending order according to the weight it represents, the total number is 9; the corresponding weight data bit is D 0 ~D 8 . The extended weight time slices are separated by unit time slices, and then arranged in turn according to the ordinal number ex_ordin of the respective extended weight factors, where: 1≤ex_ordin≤5. Then arrange the extended weight time slice with ex_ordin=1, and the corresponding weight data bit is D 9 ;Then it is the first separate unit time slice of the extended weight time slice of ex_ordin=2, and the corresponding w...

Embodiment 2

[0110] Embodiment 2: Blanking weight time slice reverse order continuous arrangement method is used to distribute and interpolate 14bit (SW=5) mixed weight time slices

[0111] For the first group of mixed weight time slices of 14 bits (SW=5), the method of sequentially arranging the blanking weight time slices in reverse order is used to perform distributed mixed insertion.

[0112] First, the blanking weight time slice M b Arranged in descending order according to the weight it represents, the total number is 9; the corresponding weight data bit is D 0 ~D 8 . The extended weight time slices are separated by unit time slices, and then arranged in reverse order according to the ordinal number ex_ordin of the respective extended weight factors, where: 1≤ex_ordin≤5. Then arrange the first separate unit time slice of the highest extended weight time slice of ex_ordin=5, and the corresponding weight data bit is D 13 ; After that is the first separate unit time slice of the ext...

Embodiment 3

[0117] Embodiment 3: Distributing and interpolating 15bit (SW=6) mixed weight time slices by adopting the blanking weight time slice interval positive sequence arrangement method

[0118] For the second group of mixed weight time slices of 15 bits (SW=6), a method of sequentially arranging intervals of blanking weight time slices is used to perform distribution and mixed insertion.

[0119] First, the blanking weight time slice M b Arranged according to the weights it represents from small to large, its total number is 9; determine each blanking weight time slice M according to the total number of unit time slices M″=72 b The number of average unit time slices between M inter

[0120] M inter = M ′ ′ - ( 15 - 6 ) ...

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Abstract

The invention relates to a method for modulating the scrambling distribution and mixed insertion scanning of time slices of a flat-panel display screen. The method comprises the following steps: splitting an expanding weight time slice Msw in a mixing weight time slice into Mcx'' number of unit time slices, carrying out mixed arrangement on a blanking weight time slice Mb and the unit time slicesobtained by splitting the expanding weight time slice Msw to form a scanning time slice sequence with the total scanning time slices the quantity of which is M'', and utilizing the scanning time slice sequence obtained in the above steps to carry out scanning gray level control on the display screen. The invention adopts the method of splitting the expanding weight time slice into multiple unit time slices and carrying out mixed arrangement on the unit time slices and the blanking weight time slice to form the new scanning time slice sequence, eliminates a series of forged outline stripes produced by relatively smooth motion images in the process of rapid motion from the aspect of visual sense, and improves the display quality of the motion images.

Description

technical field [0001] The invention relates to a scanning time sequence modulation method of a flat panel display screen, in particular to a scanning time sequence modulation method with random distribution and mixed insertion of time slices of a flat panel display screen. Background technique [0002] There are two ways to control the display brightness of the flat panel display LED. One is to change the current flowing through the LED; the other method is to use the visual inertia of the human eye to achieve grayscale control with pulse width modulation, that is, to periodically change the width of the light pulse (that is, the duty cycle), as long as this The cycle of repeated lighting is short enough (that is, the refresh rate is high enough), and the human eye does not feel the shaking of the light-emitting pixels. Since pulse width modulation is more suitable for digital control, almost all LED displays currently use pulse width modulation to control gray levels. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
Inventor 陈宇丁铁夫王瑞光刘维亚郑喜凤
Owner CHANGCHUN CEDAR ELECTRONICS TECH CO LTD