Colour defects in a display panel due to different time response of phosphors
AssigneeThomson Licensing
InventorsSebastien Weitbruch, Cedric Thebault, Axel Goetzke
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Abstract
The luminous elements of the three colours red, green and blue of a plasma video display have different time responses. Therefore, a coloured trail/edge appears behind and in front of the edges of a moving object. In order to reduce the disturbing character of such coloured trails/edges, correcting the video data for blue and red phosphor elements to compensate for the different time responses discolour them. Then only a discoloured trail/edge appears which is less disturbing.
Claims13
Method for processing video pictures for display on a display device (17) having at least two kinds of luminous elements (R, G, B) with different time responses, characterized by selecting the video data for the luminous elements (R, B) that show a time response different than the slowest time response and correcting the video data for driving the luminous elements (R, B) not belonging to the slowest kind (G) so that the differences in time responses of luminous elements are artificially compensated.
Device for processing video pictures for display on a display device (17) having at least two kinds of luminous elements (R, G, B) with different time responses, wherein one kind (G) is a slowest kind of luminous elements which shows the slowest time response, characterized by a compensation unit (12) for correcting the video data for driving the luminous elements (B, R) not belonging to the slowest kind so that the differences in time responses of luminous elements are artificially compensated.
Dependencies are inferred from the claim text.