Display device, pixel circuit and driving method thereof
A pixel circuit and current technology, which is applied in the field of display devices, can solve problems such as uneven light emission of pixels and low aperture ratio of pixel circuits, and achieve the effects of reducing voltage distortion, increasing uniformity, and uniform brightness
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Embodiment 1
[0050] Such as figure 2 Shown is the structural diagram of the pixel circuit of Embodiment 1, including a first transistor 21, a second transistor 22, a third transistor 23, a fourth transistor 24, a fifth transistor 25, a light emitting device 28, a capacitor 29, a first scanning control signal line 41 and data signal line 51 .
[0051] The first transistor 21, the second transistor 22, and the third transistor 23 are P-type tubes; the fourth transistor 24 and the fifth transistor 25 are N-type tubes; the first transistor 21, the fourth transistor 24, and the light-emitting device 28 are connected in series at the power supply voltage line and ground level.
[0052] The control electrode of the first transistor 21 is coupled to the first current conduction pole of the capacitor 29, the first current conduction pole of the first transistor 21 is coupled to the second current conduction pole of the second transistor 22, and the first current conduction pole of the first trans...
Embodiment 2
[0073] Such as Figure 5 Shown is a structural diagram of a pixel circuit according to Embodiment 2 of the present invention, including a first transistor 21, a second transistor 22, a third transistor 23, a fourth transistor 24, a fifth transistor 25, a light emitting device 28, a capacitor 29, a first The scanning control signal line 41 , the second scanning control signal line 42 and the data signal line 51 . The main difference from the first embodiment in terms of device selection is that the fourth transistor 24 and the fifth transistor 25 are P-type transistors. The circuit adopts a circuit structure of all P-type tubes, which can reduce the complexity of the process in the manufacturing process. Devices whose connection relationship does not change in the circuit will not be repeated here. The difference in the circuit connection is that the control electrode of the fourth transistor 24 is coupled to the second scanning control signal line 42, and the first current of...
Embodiment 3
[0088] Such as Figure 8 As shown, the pixel circuit in this embodiment includes a first transistor 21, a second transistor 22, a third transistor 23, a fourth transistor 24, a fifth transistor 25, a light emitting device 28, a capacitor 29, and a first scanning control signal line 41 and data signal line 51.
[0089]The first transistor 21, the fourth transistor 24 and the fifth transistor 25 are P-type transistors, the second transistor 22 and the third transistor 23 are N-type transistors; the first transistor 21, the fourth transistor 24 and the light emitting device 28 are connected in series in the first between the supply voltage line and ground level.
[0090] The control electrode of the first transistor 21 is coupled to the first current conduction pole of the capacitor 29, the first current conduction pole of the first transistor 21 is coupled to the first current conduction pole of the second transistor 22, and the first current conduction pole of the first transi...
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