Device and method for correcting false contouring in image display system

Abstract

A pseudo-contour compensation apparatus and its method in image display system are provided. The apparatus including: A first beam splitter receives a plurality of color light signals, transmits a first wavelength bandwidth and reflects a second wavelength bandwidth. A first panel receives the first wavelength bandwidth of the plurality of color light signals, receives color data and panel control signal, and outputs a first incident light beam according to the panel control signal, to thereby display the received color data in the order of least significant bit starting from most significant bit. A second panel receives the second wavelength bandwidth of the plurality of color light signals, receives the color data and the panel control signal, and outputs a second incident light beam according to the panel control signal, to thereby display the received color data in the order of the most significant bit starting from the least significant bit. According to the present invention as described above, received image data is displayed by reversely-symmetrically arranging the bits of two digital driving display means, so that fatal false contour during digital driving can be removed.

Description

technical field [0001] The present invention relates to an image display device and method, and more particularly to a false contour correction device in an image display system, by which false contours (false contours) where unit bit conversion of data on a display device driven in a digital system is sharp can be corrected. contour). Background technique [0002] Existing types of display devices driven in digital systems include plasma display panels (PDPs), liquid crystal display (LCD) panels, ferroelectric liquid crystal (FLC) panels, and the like. [0003] The FLC display panel has a structure in which a ferroelectric liquid crystal is sandwiched between an optical flat mirror formed on a silicon substrate and glass, and has a wide viewing angle and a fast response speed compared with other display panels. [0004] Image distortion due to an optical illusion in a display device driven in a digital system is called a false contour, and generally occurs where the transi...

AI Technical Summary

Problems solved by technology

That is, even when the data value just changes by 1, such as from 127 to 128, if the image changes, the data effect of 225 or 0 is felt at the boundary according to the moving direction of the picture, resulting in a serious deterioration of the image quality

[0006] It has been found that images can be degraded to an undesired degree due to the false contour phenomenon

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