Patent ID: 6714191
Filing Date: 2004-03-30
Classification: G09G

Abstract:
A flicker pattern detector coupled to a video signal source suitable for detecting a sub-pixel pair susceptible to producing a flicker event in an image displayed on a liquid crystal display (LCD) unit, comprising:a two dimensional flicker pattern analyzer arranged to perform a two dimensional flicker pattern analysis on a selected group of sub-pixels some of which are included in a first plurality of sub-pixels that includes a first current sub-pixel and a first previous sub-pixel included in a first video frameline and a remainder of which are included in a second plurality of sub-pixels included in a second video frameline that is received, in real time, from the video signal source that includes a second current sub-pixel and a second previous sub-pixel, wherein the two dimensional flicker pattern analyzer includes, a first storage device suitable for storing the first plurality of sub-pixels, a second storage device coupled to the first storage device suitably arranged to store the first current sub-pixel, a third storage device arranged to store a the second current sub-pixel, and a comparator unit coupled to the first storage device, the second storage device and the third storage device arranged to, perform a two dimensional compare operation, and update a final flicker frame score based upon the compare operation indicative of the susceptibility of producing a flicker event in an image displayed on a liquid crystal display (LCD) unit.