Patent ID: 9666125
Date: 2017-05-30
CPC Classifications: G09G

Claim:
1. An organic light-emitting diode circuit, comprising: a storage unit comprising a first capacitor, wherein the first capacitor comprises a first end and a second end; a first transistor comprising a first end, a second end, and a control end, the control end of the first transistor directly connected to the first end of the first capacitor, and the first transistor configured to be driven by a voltage stored in the storage unit to generate a driving current from the second end of the first transistor; a coupling capacitor comprising a first end electrically coupled to the second end of the first transistor and a second end, and the coupling capacitor configured to change a voltage of the second end of the first transistor from a first voltage level to a second voltage level according to a voltage variation of the second end of the coupling capacitor and the first voltage level of the second end of the first transistor; a compensation unit comprising a fourth transistor, the fourth transistor comprising a first end, a second end and a control end, the first end of the fourth transistor is directly connected to the second end of the first capacitor, the second end of the fourth transistor is directly connected to the second end of the first transistor, and the compensation unit configured to change the voltage of the second end of the first transistor from the second voltage level to a third voltage level according to a current path, wherein the current path connects the first transistor and the compensation unit in series, and the current path is activated by a first scan signal; an input unit configured to transmit a data voltage to the storage unit according to a second scan signal; an organic light-emitting diode configured to receive the driving current; and a switch unit configured to be turned on according to a light-emitting signal so that the driving current is transmitted to the organic light-emitting diode through the switch unit.