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发明公开
CN108182909A 有机发光二极管驱动电路和驱动方法 有权

有机发光二极管驱动电路和驱动方法
摘要：
本发明提出了有机发光二极管驱动电路，包括：第一开关单元，电连接于第一电容的第一端和数据线；第二开关单元，电连接于第一电容的第二端和数据线；第三开关单元，第一端电连接于电压输入端，第二端电连接于有机发光二极管，第三端电连接于第一电容的第一端；第四开关单元，第一端电连接于第一电容的第一端，第二端电连接于第三开关单元的第二端；其中，第二电容的第一端电连接于电压输入端，第二电容的第二端电连接于第一电容的第二端。根据本发明的实施例，可以保证有机发光二极管的在第四个时间段发光的发光亮度不受第三开关单元的阈值电压的影响，从而保证发光亮度的稳定性，使得有机发光二极管所在的显示装置具有良好的显示效果。
摘要（英）：

The invention provides an organic light-emitting diode driving circuit, which comprises a first switching unit, a second switching unit, a third switching unit and a fourth switching unit, wherein thefirst switching unit is electrically connected to a first end of a first capacitor and a data line; the second switching unit is electrically connected to a second end of the first capacitor and thedata line; a first end of the third switching unit is electrically connected to a voltage input end, a second end is electrically connected to an organic light-emitting diode, and a third end is electrically connected to the first end of the first capacitor; a first end of the fourth switching unit is electrically connected to the first end of the first capacitor, and a second end is electricallyconnected to the second end of the third switching unit; a first end of a second capacitor is electrically connected to the voltage input end, and a second end of the second capacitor is electricallyconnected to the second end of the first capacitor. According to the embodiment of the invention, the light emitting brightness of the organic light-emitting diode in a fourth time period can be ensured not to be influenced by threshold voltage of the third switching unit, so that the stability of the light emitting brightness is ensured, and a display device in which the organic light-emitting diode is located is enabled to have a good display effect.

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