1. A method for displaying an image in a sequential color display system having a given available maximum light intensity for each color to be displayed, the method comprising: in an apparatus: receiving image data defining intensities for each color for each pixel of the image to be displayed; determining a maximum display light intensity needed for each color to display substantially all the pixels of the image with the intensities as defined by the image data; based on relative values of the determined maximums, determining a relative portion of total display time needed for each color to display all the pixels; providing a bitplane color sequence with the determined relative total display time portions for the colors distributed over different bit-weight display time blocks across the total display time; and displaying the image using the provided bitplane color sequence; wherein, when at least one color has a determined maximum less than the given available maximum for that color, at least a part of the portion of the total display time needed for display of that color with a determined maximum equal to the given available maximum is reallocated.