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Plasma display device and image processing method thereof

A display device and image processing technology, applied in image communication, static indicator, TV, etc., to achieve the effect of stabilizing the picture, reducing semitone noise, and increasing the number

Inactive Publication Date: 2009-01-14
LG ELECTRONICS(NANJING) PLASMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] As mentioned above, in the prior art, there is no effective method for plasma display devices to minimize halftone noise or false contour noise when processing images.

Method used

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  • Plasma display device and image processing method thereof
  • Plasma display device and image processing method thereof
  • Plasma display device and image processing method thereof

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Embodiment Construction

[0032] Next, with reference to the accompanying drawings, the plasma display device and its image processing method in the present invention will be described in detail as follows.

[0033] figure 2 is a block diagram of a plasma display device in an embodiment of the present invention.

[0034] refer to figure 2 , The plasma display device in the embodiment of the present invention includes: a sustain table storage unit 201, a sustain pulse control unit 202, a reverse gamma compensation (reverse gamma compensation) unit 203, a half tone (half toning) unit 204, and a timing control unit 205 , a sub-field mapping (sub-field mapping) section 206, and a plasma display panel 207.

[0035] Sustain table storage unit 201 stores in advance sustain coefficients assigned to sub-fields, and stores sustain pulse coefficients. The sustain pulse control unit 202 controls the sustain pulse coefficients based on the mapping code of the sub-field mapping unit for the sustain pulse coeffi...

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PUM

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Abstract

Disclosed is a plasma display device and image processing method thereof, which includes a sub-field mapping part of a plurality of codes with the mapping of more than two bits in the mapping code of the image data having at least one sub-field in a plurality of sub-fields; a holding impulse controlling part for controlling and maintaining the number of the pulse according to the mapping code of the sub-field mapping; and a plasma display panel loading holding pulse to display the image. When the invention displays the motion image, the multiple mapping is used to add the number of the actual gray level and clear the false contour noise; thereby the image quality is improved.

Description

1. Technical field [0001] The present invention relates to a display device, more specifically, a plasma display device and an image processing method thereof. 2. Background technology [0002] Among general display devices, a plasma display device includes a plasma display panel (Plasma Display Panel) for displaying images and a driving unit for driving the plasma display panel. [0003] Plasma display panel, a unit cell (cell) is composed of a spacer formed between the front substrate and the back substrate, and each cell (cell) is filled with neon (Ne), helium (He), or a mixed gas of neon and helium (Ne+He) and other main discharge gas and a small amount of inert gas containing xenon. In the above-mentioned plasma display panel, when the high-frequency voltage causes discharge, the inert gas generates vacuum ultraviolet rays (Vacuum Ultraviolet ray), which makes the phosphors formed between the interlayers emit light and display images. [0004] The image display method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/14G09G3/28G09G3/296
CPCG09G3/2944G09G3/296
Inventor 金正焕
Owner LG ELECTRONICS(NANJING) PLASMA CO LTD