Common voltage compensation unit and compensation method, driving circuit and display panel
AssigneesBoe Technology Group Co., Ltd., Chengdu Boe Optoelectronics Technology Co., Ltd.
InventorsTao Hou, Junping Bao, Yuansen Huang, Mingzhou Guo
Life of this patent
Estimating the term…
Abstract
A common voltage compensation unit and compensation method, a driving circuit and a display panel are disclosed. In the common voltage compensation unit provided by the disclosure, the first compensation module may be used for outputting a first common voltage to the common electrode line in the pixel charging period of time, and the second compensation module may be used for outputting a second common voltage to the common electrode line in the pixel non-charging period of time.
Claims11
A common voltage compensation unit for a scanning line, comprising:
- a first compensation module,
- a second compensation module,
- the scanning line, and
- a common electrode line corresponding to the scanning line one-to-one;
- wherein the first compensation module and the second compensation module are connected in parallel between the common electrode line and the scanning line;
- wherein the first compensation module is used for outputting a first common voltage to the common electrode line when the voltage on the scanning line is an ON voltage;
- and
- wherein the second compensation module is used for outputting a second common voltage to the common electrode line when the voltage on the scanning line is an OFF voltage;
- and
- wherein the first common voltage is greater than the second common voltage;
- wherein:
- the first compensation module comprises a first input terminal and a first transistor;
- a gate of the first transistor is connected with the scanning line, a first pole of the first transistor is connected with the first input terminal, and a second pole of the first transistor is connected with the common electrode line;
- the first input terminal is used for inputting the first common voltage to the first compensation module;
- and
- the first transistor is used for conducting the first common voltage to the common electrode line when the voltage on the scanning line is the ON voltage;
- and wherein:
- the second compensation module comprises a second input terminal and a second transistor;
- a gate of the second transistor is connected with the scanning line, a first pole of the second transistor is connected with the second input terminal, and a second pole of the second transistor is connected with the common electrode line;
- the second input terminal is used for inputting the second common voltage to the second compensation module;
- and
- the second transistor is used for conducting the second common voltage to the common electrode line when the voltage on the scanning line is the OFF voltage;
- wherein the first transistor is an N-type transistor, and the second transistor is a P-type transistor.
Dependencies are inferred from the claim text.