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US 12,688,815 B2Granted
Pixel circuit, display panel, and display device with reduced flickering of image
AssigneeWuhan Tianma Micro-Electronics Co., Ltd.
InventorWenshuai Zhang
Life of this patent
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Abstract
A pixel circuit, a display panel, and a display device are provided. The pixel circuit includes a driving module and a bias compensation module. A control terminal of the bias compensation module is electrically connected to a first control signal line, a first terminal of the bias compensation module is electrically connected to a target signal line, a second terminal of the bias compensation module is electrically connected to a first terminal of the driving module or a second terminal of the driving module, and the target signal line is electrically connected to a first periodic signal.
Claims19
A pixel circuit, comprising:
- a driving module;
- a bias compensation module, wherein a control terminal of the bias compensation module is electrically connected to a first control signal line, a first terminal of the bias compensation module is electrically connected to a target signal line, a second terminal of the bias compensation module is electrically connected to a first terminal of the driving module or a second terminal of the driving module, and the target signal line is electrically connected to a first periodic signal;
- a first reset module, wherein a control terminal of the first reset module is electrically connected to a first scan control signal line, a first terminal of the first reset module is electrically connected to a first reference voltage signal line, and a second terminal of the first reset module is electrically connected to a first node;
- and
- a threshold compensation module, wherein a control terminal of the threshold compensation module is electrically connected to a third scan control signal line, a first terminal of the threshold compensation module is electrically connected to the first node, and a second terminal of the threshold compensation module is electrically connected to the second terminal of the driving module,
- wherein:
- the first reset module and the threshold compensation module each include an N-type transistor.
4 more elements
A display panel, comprising:
- a plurality of rows of pixel circuits, wherein each row of the plurality of rows of pixel circuits includes a pixel circuit, wherein the pixel circuit includes:
- a driving module;
- a bias compensation module, wherein a control terminal of the bias compensation module is electrically connected to a first control signal line, a first terminal of the bias compensation module is electrically connected to a target signal line, a second terminal of the bias compensation module is electrically connected to a first terminal of the driving module or a second terminal of the driving module, and the target signal line is electrically connected to a first periodic signal;
- a first reset module, wherein a control terminal of the first reset module is electrically connected to a first scan control signal line, a first terminal of the first reset module is electrically connected to a first reference voltage signal line, and a second terminal of the first reset module is electrically connected to a first node;
- and
- a threshold compensation module, wherein a control terminal of the threshold compensation module is electrically connected to a third scan control signal line, a first terminal of the threshold compensation module is electrically connected to the first node, and a second terminal of the threshold compensation module is electrically connected to the second terminal of the driving module,
- wherein:
- the first reset module and the threshold compensation module each include an N-type transistor.
5 more elements
A display device, comprising a display panel, wherein:
- the display panel includes a plurality of rows of pixel circuits, and each row of the plurality of rows of pixel circuits includes a pixel circuit, wherein the pixel circuit includes:
- a driving module;
- a bias compensation module, wherein a control terminal of the bias compensation module is electrically connected to a first control signal line, a first terminal of the bias compensation module is electrically connected to a target signal line, a second terminal of the bias compensation module is electrically connected to a first terminal of the driving module or a second terminal of the driving module, and the target signal line is electrically connected to a first periodic signal;
- a first reset module, wherein a control terminal of the first reset module is electrically connected to a first scan control signal line, a first terminal of the first reset module is electrically connected to a first reference voltage signal line, and a second terminal of the first reset module is electrically connected to a first node;
- and
- a threshold compensation module, wherein a control terminal of the threshold compensation module is electrically connected to a third scan control signal line, a first terminal of the threshold compensation module is electrically connected to the first node, and a second terminal of the threshold compensation module is electrically connected to the second terminal of the driving module,
- wherein:
- the first reset module and the threshold compensation module each include an N-type transistor.
5 more elements
Dependencies are inferred from the claim text.