Patent ID: 9095031
Filing Date: 2015-07-28
Classification: G09G,H05B,Y02B

Abstract:
1. An organic light emitting diode driving circuit comprising an organic light emitting diode, a driving unit controlling a current of the organic light emitting diode and a threshold compensation unit comprising: a first electronic switch with a first connection terminal thereof being connected to a cathode of the organic light emitting diode, a second connection terminal thereof being connected to the driving unit and a switch control terminal thereof being connected to a second control voltage; a second electronic switch with a first connection terminal thereof being connected to a high level, a second connection terminal thereof being connected to a first connection terminal of a third electronic switch, and a switch control terminal thereof being connected to a first control voltage; the third electronic switch with a first connection terminal thereof being connected to the second connection terminal of the second electronic switch, a second connection terminal thereof being connected to a capacitance, and a switch control terminal thereof being connected to a scan voltage; a fourth electronic switch, with a first connection terminal thereof being connected to the driving unit, a second connection terminal thereof being connected to a data voltage, and a switch control terminal thereof being connected to the scan voltage; a fifth electronic switch with a first connection terminal thereof being connected to ground, a second connection terminal thereof being connected to the driving unit, and a switch control terminal thereof being connected to the second control voltage; and the capacitance with one terminal thereof being connected to ground, and the other terminal thereof being connected to the second connection terminal of the third electronic switch, wherein an anode of the organic light emitting diode is connected to the high level, and the second connection terminal of the second electronic switch is connected to the second connection terminal of the first electronic switch.