Adaptive image processing method and apparatus for reduced colour shift in LCDs
AssigneeSharp Kabushiki Kaisha
InventorsBenjamin John Broughton, Harry Garth Walton, Paul Antony Gass, Meelis Lootus, Charlotte Wendy Michele Borgers
Life of this patent
Estimating the term…
Abstract
A method and apparatus is provided for reducing color shift in relation to viewing angle in an LCD. The method includes receiving a plurality of pixel data constituting an image, each pixel data including a plurality of sub-pixel color components having respective data values; for each of the pixel data, comparing the sub-pixel color component data values included therein; and based on the comparison, modifying the sub-pixel color component data values included in the pixel data to reduce color shift when displayed on the LCD.
Claims26
A method for reducing color shift in relation to viewing angle in an LCD, the method comprising:
- receiving a plurality of pixel data constituting an image, each pixel data including a plurality of sub-pixel color components having respective data values;
- for each of the pixel data, comparing the sub-pixel color component data values included therein;
- and
- based on the comparison, modifying the sub-pixel color component data values included in the pixel data, said modification altering a combined off-axis luminance resulting from a group of pixels and leaving an on-axis luminance resulting from the group of pixels substantially unchanged.
An apparatus for reducing color shift in relation to viewing angle in an LCD, comprising:
- an input for receiving a plurality of pixel data constituting an image, each pixel data including a plurality of sub-pixel color components having respective data values;
- a comparison section which, for each of the pixel data, compares the sub-pixel color component data values included therein;
- and
- a modifying section which, based on the comparison, modifies the sub-pixel color component data values included in the pixel data, said modification altering a combined off-axis luminance resulting from a group of pixels and leaving an on-axis luminance resulting from the group of pixels substantially unchanged.
A computer program stored on a non-transitory computer-readable medium which, when executed by a computer, carries out a method for reducing color shift in relation to viewing angle in an LCD, the method comprising:
- receiving a plurality of pixel data constituting an image, each pixel data including a plurality of sub-pixel color components having respective data values;
- for each of the pixel data, comparing the sub-pixel color component data values included therein;
- and
- based on the comparison, modifying the sub-pixel color component data values included in the pixel data, said modification altering a combined off-axis luminance resulting from a group of pixels, leaving an on-axis luminance resulting from the group of pixels substantially unchanged.
Dependencies are inferred from the claim text.