Patent Number: 8,817,039

Title: Image processing device and image processing method

Abstract: Provided is an image processing device which enables image display that takes full advantage of a color reproduction performance of a panel without providing a viewer with a feeling of strangeness. An image processing device includes: a color gamut conversion processor configured to convert inputted data into RGB data according to a liquid crystal panel; a weighting factor calculator configured to calculate a weighting factor; a first post-color-gamut-conversion data weighting processor configured to perform weighting processing to the RGB data; an inputted data weighting processor configured to perform weighting processing to the inputted data; and an output adder configured to add data after the weighting processing to generate RGB data to be supplied to the liquid crystal panel. The weighting factor calculator obtains the weighting factor based on a positional relation among a chromaticity coordinate on an xy chromaticity diagram, a color reproduction range for the inputted data, and a boundary line defined so as to include memory colors.

Inventors: Zhang; Xiaomang (Osaka, JP), Yoshida; Akiko (Osaka, JP)

Assignee: Sharp Kabushiki Kaisha

International Classification: G09G 5/00 (20060101); G09G 5/02 (20060101); G06K 9/00 (20060101); G06K 9/40 (20060101); G03F 3/08 (20060101); G06F 15/16 (20060101); H04N 5/202 (20060101); H04N 11/06 (20060101); H04N 1/46 (20060101); H04N 9/64 (20060101); H04N 9/67 (20060101); H04N 9/73 (20060101); G06K 9/36 (20060101); G06K 9/32 (20060101)

Expiration Date: 8/26/12018