Display device
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorsDongsheng GUO, Jianyong FU
Life of this patent
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Abstract
A display device capable of reducing electromagnetic interference includes a display panel which has a source driver and a gate driver; a connector; a DC-DC converter; a first trace for connecting the connector and the DC-DC converter; and a second trace for connecting the DC-DC converter and the source driver, wherein the DC-DC converter is disposed near the gate d river, and a length of the first trace is longer than a length of the second trace, so that it minimizes the path of the DC-DC converter outputting current, and reduces the generation of electromagnetic interference.
Claims11
A display device, comprising:
- a display panel having a source driver deployed in the first direction and a gate driver deployed in the second direction, and the source driver and the gate driver being used for driving the display panel;
- a connector for connecting an external power source to receiving a voltage therefrom;
- a DC-DC converter disposed near the gate driver and electrically connected to the source driver, the gate driver and the connector, for receiving the voltage from the connector and converting the voltage into a driving voltage to be applied to the display panel, wherein the DC-DC converter is deposed on a printed circuit board and includes a pulse width modulation circuit and a charge pump, and the pulse width modulation circuit is electrically connected to the charge pump;
- a first trace for connecting the connector and the DC-DC converter, wherein the first trace is covered with a shielding material;
- and
- a second trace for connecting the DC-DC converter and the source driver, wherein a length of the first trace is longer than a length of the second trace.
A display device, comprising:
- a display panel having a source driver deployed in the first direction and a gate driver deployed in the second direction, and the source driver and the gate driver are used for driving the display panel;
- a connector for connecting an external power source to receiving a voltage therefrom;
- a DC-DC converter disposed near the gate driver and electrically connected to the source driver, the gate driver, and the connector, for receiving the voltage from the connector and converting the voltage into a driving voltage to be applied to the display panel;
- a first trace for connecting the connector and the DC-DC converter;
- and
- a second trace for connecting the DC-DC converter and the source driver, wherein a length of the first trace is longer than a length of the second trace.
A printed circuit board for a display device, the display device including a display panel which has a source driver deployed in the first direction and a gate driver deployed in the second direction, and the source driver and the gate driver being used for driving the display panel, the printed circuit board comprising;
- a connector for connecting an external power source to receive a voltage therefrom;
- a DC-DC converter for transmitting the voltage to the source driver and the gate driver;
- a first trace for connecting the connector and the DC-DC converter;
- and
- a second trace for connecting the DC-DC converter and the source driver, wherein a length of the first trace is longer than a length of the second trace.
Dependencies are inferred from the claim text.