Sequential display system with changing color order
AssigneeThomson Licensing
InventorDonald Willis
Life of this patent
Estimating the term…
Abstract
To sequentially display pictures in a television signal, a first picture is separated into sets of red, green and blue segments, with each segment of each color interleaved with the segments of the other colors in a first sequence for display in that sequence. Each successive picture is likewise separated into sets of red, green and blue segments, which each segment of each color interleaved with the segments of the other colors in a shifted sequence for display in that sequence. Shifting the color sequence of the segments of each successive picture among the primary colors so at least the first and last segment of the occurrence of motion artifacts that manifest themselves as a color distortion at the leading and trailing edges of a moving object followed by a viewer's eye.
Claims11
A method for displaying at least first and second incoming pictures in sequence, comprising the steps of:
- separating the first picture into sets of first picture segments, each set associated with a different primary color;
- interleaving the first picture segments in a first color sequence;
- separating the second picture into sets of second picture segments, each set associated with a different primary color;
- interleaving the second picture segments in a second color sequence in which at least the first and last second picture segments are each of different color than the first and last first picture segments, respectively, and
- sequentially displaying the first picture segments in the first color sequence;
- and thereafter
- sequentially displaying the second picture segments in the second color sequence.
A method for successively displaying color pictures such that each picture appears during a picture interval, comprising the steps of:
- separating each successive picture into sets of segments, the number of sets of segments corresponding to a prescribed number of primary colors;
- imparting each of the primary colors in a prescribed sequence to a beam of light directed onto a light modulator, said each primary color imparted simultaneously with the application of a control signal to the light modulator causing the light modulator to modulate the segment of the primary color for display on a display screen;
- and
- changing the sequence of primary colors imparted to the light directed onto the light modulator upon each next successive picture so that the primary color associated with at least a first and a last segment of said each next successive picture differs from the primary color associated with each of the first and last segments, respectively, of a preceding picture.
A sequential color display system for displaying successive pictures, comprising:
- a light source for producing a light beam;
- a light modulator lying within the optical path of the light beam for modulating the light beam onto a display screen;
- means for separating each successive picture into sets of segments, the number of sets of segments corresponding to a prescribed number of primary colors, and for applying control signals to a light modulator to cause the light modulator to generate said sets of segments such that each segment of a set is interleaved between segments of other sets;
- a color sequencing mechanism interposed between the light source and the light modulator for imparting to the light beam each of the primary colors in a prescribed sequence, said each primary color imparted simultaneously with the application of said each segment to the modulator, the color sequencing mechanism changing the sequence of primary colors imparted to the light directed onto the light modulator upon each next successive picture so that the primary color associated with at least a first and a last segment of said each next successive picture each differs from the primary color associated with each of the first and last segments, respectively, of a preceding picture.
Dependencies are inferred from the claim text.