Driving waveforms for reflective displays and reflective displays using the same

A method of driving a reflective display from a first display state to a second display state, the method comprising:

• generating a waveform for each frame in a number of frames, wherein the waveform represents a drive voltage to be applied to an actuator in each of one or more subpixels;
• applying the drive voltage to each of the actuators according to the waveform, wherein the subpixels form a plurality of pixels and applying the drive voltage to each of the actuators drives the pixels in the plurality of pixels from a first color state to an intermediate color state;
• wherein driving each of the pixels over a number of frames, the method transforms the display from the first color state to the second color state;
• wherein the drive voltage for an actuator commanded by one frame of the waveform may differ from the drive voltage commanded for that same actuator by the next frame,
• wherein the waveform for each frame in the number of frames includes drive times for applying the drive voltage based upon ambient temperature, pressure, and humidity at the reflective display.

A reflective display device comprising:

• (i) a plurality of pixels, each of the pixels in the plurality of pixels comprising one or more subpixels and an actuator for independently driving each of the one or more subpixels;
• (ii) a timing generator that divides a display update time into a number of frames based at least in part on a number of rows and a number of columns in the plurality of pixels;
• (iii) a waveform generator that generates a waveform for each frame in a number of frames, wherein the waveform represents a drive time for a drive voltage to be applied to an actuator in each of one or more subpixels;
• wherein applying the drive voltage to the actuators in each of the subpixels according to the waveform drives the display from a first display state to a second display state,
• wherein the waveform represents the drive time based in part upon an ambient temperature, pressure, and humidity at the reflective display.