CPC G09G 3/32 (2013.01) [G09G 3/2007 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/061 (2013.01)] | 10 Claims |
1. A pixel drive circuit, comprising:
a micro light-emitting diode, a cathode of the micro light-emitting diode being grounded;
a light-emitting control circuit, connected with a anode of the micro light-emitting diode, and configured to control an emission time of the micro light-emitting diode; and
a current control circuit, connected with the light-emitting control circuit, and configured to output a preset current to the light-emitting control circuit to control the micro light-emitting diode to work under a set current density, wherein luminous efficiency of the micro light-emitting diode under the set current density is greater than a set threshold,
wherein the current control circuit comprises:
a first control sub-circuit, a first terminal of the first control sub-circuit being connected with a first power supply terminal, and a second terminal of the first control sub-circuit being connected with the light-emitting control circuit;
a first storage sub-circuit, connected with a third terminal of the first control sub-circuit, and configured to discharge through the first control sub-circuit and control the first control sub-circuit to work at the preset current; and
a first charging sub-circuit, connected with the first storage sub-circuit, and configured to charge the first storage sub-circuit.
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