Pixel unit circuit, method for driving the same, and pixel circuit
摘要
說明書
A drain electrode of the driving transistor DTFT is connected to the high-voltage input terminal inputted with the high voltage VDD. A source electrode S of the driving transistor DTFT is connected to an anode of the organic light emitting diode OLED.
A cathode of the organic light emitting diode OLED is connected to the low-voltage input terminal inputted with the low voltage VSS.
The storage capacitor sub-circuit 12 includes a storage capacitor Cst. A first electrode plate of the storage capacitor Cst is connected to the gate electrode G of the driving transistor DTFT. A second electrode plate of the storage capacitor Cst is connected to the source electrode S of the driving transistor DTFT.
In the fourth example of the pixel unit circuit as shown in
The reading control sub-circuit 21 includes a reading control transistor TW. A gate electrode of the reading control transistor TW is connected to the second gate line Scan2, a drain electrode of the reading control transistor TW is connected to a cathode of the photosensitive diode PD, and a source electrode of the reading control transistor TW is connected to the reading line RL.
An anode of the photosensitive diode PD is connected to the third voltage input terminal VI3. In the fourth example, the third voltage input terminal VI3 may be a low-voltage input terminal inputted with a low voltage.
