A device for subfield coding a large-screen display generates a digital value
for
a picture element of the display, and determines a first number and a second number
of subfields of a predetermined total number of subfields from the digital value,
for which determined subfields the picture element emits radiation. In order to
improve the dynamic range while maintaining the maximally obtainable brightness,
the first number of subfields each have a different on-period during which the
picture element emits radiation, and the second number of each have a same on-period
during which the picture element emits radiation.
