Pixel circuit, pixel driving method, and display device
A technology of pixel circuit and driving current, which is applied in the direction of static indicators, instruments, etc., can solve the problems of large driver chip area, low contrast of display panel, long gamma adjustment time, etc., and achieve the effect of avoiding false light emission
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[0051] Example one
[0052] figure 1 This is a schematic diagram of the circuit structure of a pixel circuit provided in the first embodiment of the present invention, such as figure 1 As shown, the pixel circuit includes: a driving transistor DTFT, a capacitor C, a data writing module 1, a current control module 2, and a light emitting device OLED. The data writing module 1 is connected to the first terminal of the capacitor C, the second terminal of the capacitor C is connected to the control electrode of the driving transistor DTFT, the first electrode of the driving transistor DTFT is connected to the first power terminal, and the second terminal of the driving transistor DTFT Connected with the first pole of the light emitting device OLED, the current control module 2 is connected with the first pole and the second power terminal of the light emitting device OLED, and the second pole of the light emitting device OLED is connected with the second power terminal.
[0053] The da...
Example Embodiment
[0073] Example two
[0074] figure 2 This is a schematic diagram of the circuit structure of a pixel circuit provided in the second embodiment of the present invention, such as figure 2 As shown, the pixel circuit is an embodiment of the pixel circuit provided in the first embodiment. Wherein, optionally, the reset module 3 includes: a first transistor T1 and a second transistor T2, the control electrode of the first transistor T1 is connected to the reset control signal input line Reset, and the first electrode of the first transistor T1 is connected to the third power terminal Connected, the second electrode of the first transistor T1 is connected to the second terminal of the capacitor C, the control electrode of the second transistor T2 is connected to the reset control signal input line Reset, and the first electrode of the second transistor T2 is connected to the fourth power terminal, The second terminal of the second transistor T2 is connected to the first terminal of t...
Example Embodiment
[0107] Example three
[0108] Figure 4 This is a flowchart of a pixel driving method provided in the third embodiment of the present invention, such as Figure 4 As shown, the pixel driving method is based on a pixel circuit, and the pixel circuit adopts the pixel circuit in the first embodiment or the second embodiment. For the specific circuit structure, please refer to the description in the first and second embodiments above, and will not be repeated here. . The pixel driving method includes:
[0109] Step S1. In the data writing stage, the data writing module writes the data voltage provided by the data line to the first end of the capacitor under the control of the first control signal input from the first control signal input line.
[0110] Step S2. In the light-emitting phase, the driving transistor generates a driving current under the control of the voltage at the second end of the capacitor; the current control module controls the driving current to flow into the curre...
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