Patent ID: 9317939
Filing Date: 2016-04-19
CPC Classification: G06T,G09G,H04N

Claim Text:
1. A method for image conversion from RGB signals into RGBW signals, comprising: converting RGB input signals as received into corresponding RGB luminance input values respectively; determining a color coordinate value and a luminance value of the corresponding point of the RGB luminance input values in the chromaticity diagram; determining a position relationship between the corresponding point and a region divided by RGW, a region divided by RBW, and a region divided by GBW in the chromaticity diagram according to the color coordinate value of the corresponding point; determining the RGBW luminance output values respectively according to the determined position relationship, a preset luminance adjustment coefficient, the color coordinate value and the luminance value of the corresponding point; converting the determined RGBW luminance output values into corresponding RGBW output signals and outputting the RGBW output signals respectively, said determining the RGBW luminance output values respectively according to the determined position relationship, a preset luminance adjustment coefficient, the color coordinate value and the luminance value of the corresponding point comprises: