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US 12,118,911 B2Granted
Demultiplexer circuit, display panel and driving method of display panel
AssigneeWuhan China Star Optoelectronics Technology Co., Ltd.
InventorLifang Wang
Life of this patent
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Abstract
Embodiments of the present application provide a demultiplexer circuit, a display panel and a driving method of a display panel. The display panel includes a first operating frequency and a second operating frequency. Responsive to the display panel being at the first operating frequency, the first switch unit is in a switched-on state and the second switch unit is in a switched-off state; responsive to the display panel being at the second operating frequency, both the first switch unit and the second switch unit are in the switched-on state.
Claims17
A demultiplexer circuit, wherein the demultiplexer circuit comprises at least one demultiplexing module, and the demultiplexing module at least comprises a first switch unit and a second switch unit;
- a signal input end of the first switch unit and a signal input end of the second switch unit are connected to each other to form a data signal input end of the demultiplexing module, and a signal output end of the first switch unit and a signal output end of the second switch unit are connected to each other to form a data signal output end of the demultiplexing module;
- wherein the demultiplexing module further comprises a plurality of control signal lines, the control signal lines at least comprise a first control signal line and a second control signal line, a control end of the first switch unit is connected to the first control signal line, and a control end of the second switch unit is connected to the second control signal line;
- wherein the first control signal line outputs a first switch control signal to the first switch unit, and the second control signal line outputs a second switch control signal to the second switch unit;
- and
- wherein the first control signal line is electrically connected to an integrated circuit, the second control signal line is electrically connected to the first control signal line via a frequency-based switch, and a control end of the frequency-based switch is electrically connected to the integrated circuit.
2 more elements
A display panel, comprising:
- a plurality of pixel units, any of the pixel units comprising a plurality of subpixels;
- a plurality of fanout lines, providing data signals for the pixel units;
- a demultiplexer circuit, comprising at least one demultiplexing module, the demultiplexing module at least comprising a first switch unit and a second switch unit;
- an integrated circuit, electrically connected to the demultiplexer circuit and providing control signals for the first switch unit and the second switch unit of the demultiplexer circuit;
- wherein any of the pixel units corresponds to a plurality of said demultiplexing modules;
- in the demultiplexing module, a signal input end of the first switch unit and a signal input end of the second switch unit are connected to each other to form a data signal input end of the demultiplexing module, and a signal output end of the first switch unit and a signal output end of the second switch unit are connected to each other to form a data signal output end of the demultiplexing module, and
- wherein the first control signal line is electrically connected to the integrated circuit, the second control signal line is electrically connected to the first control signal line via a frequency-based switch, and a control end of the frequency-based switch is electrically connected to the integrated circuit.
4 more elements
A driving method of a display panel, the display panel comprising:
- a plurality of pixel units, any of the pixel units comprising a plurality of subpixels;
- a plurality of fanout lines, providing data signals for the pixel units;
- a demultiplexer circuit, comprising at least one demultiplexing module, the demultiplexing module at least comprising a first switch unit and a second switch unit;
- an integrated circuit, electrically connected to the demultiplexer circuit and providing control signals for the first switch unit and the second switch unit of the demultiplexer circuit;
- wherein any of the pixel units corresponds to a plurality of said demultiplexing modules;
- in the demultiplexing module, a signal input end of the first switch unit and a signal input end of the second switch unit are connected to each other to form a data signal input end of the demultiplexing module, and a signal output end of the first switch unit and a signal output end of the second switch unit are connected to each other to form a data signal output end of the demultiplexing module;
- the display panel further comprising a first operating frequency and a second operating frequency, wherein the first operating frequency is less than the second operating frequency;
- responsive to the display panel being at the first operating frequency, the first switch unit is in a switched-on state and the second switch unit is in a switched-off state;
- responsive to the display panel being at the second operating frequency, both the first switch unit and the second switch unit are in the switched-on state, and
- wherein the first control signal line is electrically connected to the integrated circuit, the second control signal line is electrically connected to the first control signal line via a frequency-based switch, and a control end of the frequency-based switch is electrically connected to the integrated circuit.
7 more elements
Dependencies are inferred from the claim text.