CPC G09G 3/32 (2013.01) [H01L 27/156 (2013.01); G09G 2320/0233 (2013.01)] | 19 Claims |
1. A pixel driving circuit is used for driving a light-emitting unit, wherein the light-emitting unit comprises a plurality of micro LEDs connected in series, the pixel driving circuit comprising:
a switch unit controlling a data signal input according to a scan signal;
a driving unit electrically connected to the switch unit and the light-emitting unit, and electrically connected to a first voltage; and
a selection unit receiving a selection signal input from a circuit other than the pixel driving circuit and electrically connected to a second voltage, wherein the selection unit is electrically connected to the micro LEDs and the driving unit, and the selection unit comprises a first selection transistor and a second selection transistor;
wherein, a number and a brightness of the micro LEDs in the light-emitting unit to be turned on are controlled by the selection unit and the driving unit according to the selection signal and the data signal.
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