Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Plasma television residual image protective method

A plasma and afterimage technology, which is applied in the direction of TV, color TV, color TV parts, etc., can solve the problem that the method of plasma TV afterimage protection is prone to misjudgment, so as to reduce the risk of misjudgment, reduce the impact, and judge the result accurate effect

Inactive Publication Date: 2013-10-23
SICHUAN COC DISPLAY DEVICES
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the technical problem that the plasma TV afterimage protection method in the prior art is prone to misjudgment, a plasma TV afterimage protection method is provided

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Plasma television residual image protective method
  • Plasma television residual image protective method
  • Plasma television residual image protective method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0057] Block signal statistics circuit parameter settings. Set the parameters according to the parameter configuration of the program memory, set the image block area interval to 4; set the data value of the different block area intervals of the starting frame image, set M1(0)=M2(0) =M3(0) =M4(0) =0; set image data change thresholds E1, E2, E3, E4; set grayscale counter thresholds J1, J2, J3; set counters j1, j2, j3=0; count the image data values ​​of different grayscales of the current frame image , set M1(1), M2(1), M3(1), M4(1).

[0058] Block signal statistics circuit workflow. Read M1(1) M2(1) M3(1) M4(1). Judgment |M1(1)-M1(0)|≦E1, |M2(1)-M2(0)|≦E2, |M3(1)-M3(0)|≦E3, |M4(1)-M4 (0)|≦E4; any item is not satisfied, then M1(0)= M1(1), M2(0)= M2(1), M3(0)= M3(1), M4(0)= M4 (1), j1=j2=j3=0, re-read M1(1) M2(1) M3(1) M4(1) for data comparison; when all items are satisfied, then j1= j1+1. Judging j1≥J1; otherwise, continue to read M1(1) M2(1) M3(1) M4(1), and continue to co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of plasma televisions and discloses a plasma television residual image protective method, concretely comprising the steps of dividing each frame image into different areas by a display signal processing unit, comparing the corresponding areas in the current frame image with those in the last frame image, and respectively calculating the change of image data values in different areas; if the changes of the image data values in each area do not exceed the set threshold value, enabling a first counter to add 1, otherwise, storing the data value in the current frame image for being compared with the next frame image; and when the value in the first counter is larger than the threshold value set by the first counter, starting a plasma television residual image protective configuration circuit. The image is divided into different areas, and all areas are independently compared, thus enabling the judging of whether an image is static to be more accurate; and the first counter is arranged and the threshold value corresponding to the first counter is arranged, thus avoiding the interference, and the effect of a jump signal on the accuracy of the residual image protective method.

Description

technical field [0001] The invention belongs to the field of plasma televisions, in particular to a method for protecting afterimages of plasma televisions. Background technique [0002] Plasma TVs use plasma display panels (PDP). If the same picture is displayed for a long time, the phosphors in the cell barriers of the plasma display panel will be lost, causing afterimages, which significantly reduce the image quality of the images. Therefore, domestic and foreign manufacturers And its technicians develop and use a variety of technical methods to protect plasma TV afterimages. [0003] To carry out afterimage protection, you must first determine the conditions under which to start afterimage protection. The commonly used method in the prior art is to judge whether the image is static or dynamic by counting the image signal data output by the front end and analyzing the signal data changes. The number of sustain pulses when the sustain pulse drops to full white. During th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04N5/44H04N5/445H04N5/21G09G3/28
Inventor 余杰蔡静
Owner SICHUAN COC DISPLAY DEVICES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com