Time multiplexed gray scale approach

摘要: A method of illuminating an active matrix EL device (AMEL) to provide a gray scale display. The comprises first electrode layer comprising individually adjustable pixel electrodes, second layer, and thin film laminate stack including at least phosphor dielectric the being disposed between layers. display is illuminated by steps of, energizing set selected ones electrodes with data signals during subframe time period. Selected pixels are driving period signal having predetermined characteristics frequency, amplitude, wave shape duration. Thereafter, energized next again altered illumination applied wherein one or more differ from signal.