Embodiments of an organic electroluminescence display capable of
preventing line mura generated due to manufacturing differences in
driving transistors are disclosed. The manufacturing differences may be
due to deviations of irradiated energy beam density generated from an
excimer laser annealing process for crystallizing amorphous silicon into
polycrystalline silicon. One embodiment of an organic electroluminescence
display a plurality of pixel circuits arranged perpendicular to a laser
scan direction for crystallization. Each pixel circuit comprises an
organic light-emitting diode, and a driving transistor configured to
supply current to the organic light-emitting diode. Each driving
transistor comprises at least two channels formed therein, wherein the
sums of lengths of the at least two channels in each driving transistor
of the display are equal.