Patent ID: 8111262

Claim:
A method of selecting a distance between two reflective surfaces for one or more interferometric modulators for use in a display so that the combination of interferometric modulators of the display reflect a target color, the two reflective surfaces defining an optical cavity of the interferometric modulator, the method comprising: for each of one or more interferometric modulators, determining a first distance between the two reflective surfaces of the interferometric modulator, wherein the determined first distance is the distance between the two reflective surfaces at which a rate of change of a color reflected from the interferometric modulator as a function of the distance between the two reflective surfaces is a local minimum; determining a color of light that would be reflected from the display when the distance between the two reflective surfaces are at the determined first distances for each of the interferometric modulators of the display; and for each of one or more of the interferometric modulators, varying the distance between the two reflective surfaces away from the first distance to determine a second distance between the two reflective surfaces, wherein the color of light that would be reflected from the display when the two reflective surfaces of the interferometric modulators are set to the second distances is closer to the target color than when the two reflective surfaces of the interferometric modulators are set to the first distances.