Patent ID: 7643040

Claim:
A method for providing pseudo gray levels between true gray levels on a color display, said method comprising: determining a number of said true gray levels natively supported by said color display, wherein said true gray levels each correspond to all color drive settings for a pixel being equal value; determining an increased number of gray levels desired to be available for display on said color display, wherein said increased number of gray levels includes said true gray levels and said pseudo gray levels, and wherein said increased number of gray levels is a multiple of said number of true gray levels natively supported by said color display; receiving a number that identifies a level of said increased number of gray levels to be displayed at a select pixel; dividing said received number by said multiple to compute a quotient; selecting a true gray level of said true gray levels for the select pixel, said true gray level having each color drive setting for said pixel being equal to said quotient; and based on a remainder value obtained from said dividing, adjusting one or more of said color drive settings of said select pixel to set the select pixel to one of the pseudo gray levels, wherein said pseudo gray level will be perceived as falling between two of said true gray levels.