Plasma display image sear-relieving improvement method

A plasma display and image technology, applied in static indicators, instruments, identification devices, etc., can solve problems such as inability to apply image images and poor burn-in effect, so as to improve performance and quality, suppress burn marks, and eliminate burn marks. Effect

Inactive Publication Date: 2009-08-05
MARKETECH INT
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Problems solved by technology

[0010] For the defects and deficiencies in the prior art, the main purpose of the present invention is to provide a method for alleviating and improving plasma display (PDP) image burn marks, to improve existing methods for improving plasma display burn marks such as picture translation method, image The grayscale inversion method, the white running bar image removal method, and the full white image heating method still have the problem that they cannot be applied to various video images and the effect of reducing and improving burn marks is not good.

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  • Plasma display image sear-relieving improvement method
  • Plasma display image sear-relieving improvement method
  • Plasma display image sear-relieving improvement method

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Embodiment Construction

[0020] The present invention will be further described below according to the accompanying drawings.

[0021] Such as Figure 4 Shown is the preferred embodiment of the method for reducing and improving the image burn-in of the plasma display (PDP) proposed by the present invention, which is divided into four main parts: the first part is the Gamma conversion unit 30, and the second part is the still picture detection unit 40. The third part is the screen brightness adjustment unit 50, and the fourth part is the gray scale number enhancement and gray scale brightness conversion unit 60. Now, the functions of each part are described in detail as follows:

[0022] 1. Gamma conversion unit 30: converts the relationship between the grayscale and brightness of the input signal into a linear relationship; for example, the relationship between the grayscale of a traditional video signal and the represented brightness is Gamma 0.45. At this time, the Gamma conversion unit 30 will The...

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Abstract

This invention puts forward a method for reducing and improving image marks of plasma display (PDP) including: a conversion unit converting the relationship of a stage and brightness of an input signal to linear one, a static picture detection unit deciding if the image displayed in the picture is static or dynamic and further let its compensation parameter of its adjustment gain negative or positive, a brightness adjustment unit adjusting the brightness of the picture with the gain value along with the detection result of the static picture detection unit, then the picture elements of the input image multiply the corresponding gain value before output then to be output.

Description

technical field [0001] The invention relates to a method for alleviating and improving burn marks of a plasma display (PDP). Background technique [0002] Plasma display (Plasma Display Panel, PDP) is the mainstream of large-size flat-panel displays at present, and it has the advantages of large screen, high image quality, wide viewing angle, low radiation, and thin thickness; however, there are still burnt marks in plasma displays (Image Sticking), that is to say, when the plasma display displays a static image for a period of time, the image in the image will have a residual phenomenon, such as figure 1 As shown, when the plasma display 10 lights a PDP character 20a, it is displayed after a period of time, and then the plasma display is displayed as figure 2 dark screen as shown or image 3 When the full white screen is shown, the previous PDP characters will remain on the screen to form the burnt marks 20b, 20c, which is a common problem on plasma displays at present. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/28G09G3/20H01J17/49G09F9/313
Inventor 高旭彬单益嘉蔡璨鸿高旭佳
Owner MARKETECH INT
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