Organic light-emitting diode driving circuit, display panel and displayer
A technology of light-emitting diodes and driving circuits, applied in static indicators, instruments, etc., can solve the problems of unstable working state of organic light-emitting diodes, poor Vth uniformity of driving tubes, different driving currents, etc. Good performance and good stability
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[0028] Example one: such as figure 1 As shown, the first preferred threshold compensation unit of the organic light emitting diode drive circuit of the present invention includes:
[0029] First switching transistor T 1 :The grid is connected to the first control voltage V CR1 , The drain is connected to high level V DD , The source is connected to the cathode of the organic light emitting diode;
[0030] Second switching transistor T 2 :The grid is connected to the second control voltage V CR2 , The drain is connected to high level V DD , The source is connected to the anode of the organic light emitting diode;
[0031] Third switching transistor T 3 :The grid is connected to the third control voltage V CR3 , The drain and source are respectively connected to the cathode of the organic light emitting diode and the A terminal of the capacitor;
[0032] Fourth switching transistor T 4 :Grid connected to scan line V SCAN , The drain and source are respectively connected to the cath...
Example Embodiment
[0046] Embodiment two: such as image 3 As shown, the second preferred threshold compensation unit of the organic light emitting diode drive circuit of the present invention includes:
[0047] First switching transistor T 1 :The grid is connected to the first control voltage V CR1 , The drain is connected to high level V DD , The source is connected to the cathode of the organic light emitting diode;
[0048] Second switching transistor T 2 :The grid is connected to the second control voltage V CR2 , The drain is connected to the cathode of the organic light emitting diode, and the source is connected to the drive circuit;
[0049] Third switching transistor T 3 :The grid is connected to the third control voltage V CR3 , The drain and the source are respectively connected to the cathode of the organic light emitting diode and the sixth switching transistor;
[0050] Fourth switching transistor T 4 : The gate is connected to the scan line, and the drain and source are respectively c...
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