Display device, drive method therefor, and drive system therefor
AssigneeHkc Corporation Limited
InventorBeizhou Huang
Life of this patent
Estimating the term…
Abstract
A display device, a drive method therefor, and a drive system therefor are provided by embodiments of the present application. The drive method includes: detecting whether a spectrum of a drive signal is spread when the drive signal is received, and the drive signal is configured to drive the display panel; outputting a clock signal output from the control module to the source drive module if the spectrum of the drive signal is spread; performing spectrum spread on the clock signal according to a preset spread spectrum ratio if the spectrum of the drive signal is not spread; and outputting the clock signal with the spread spectrum to the source drive module.
Claims18
A drive method for a display device, wherein the display device comprises a control module, a source drive module, and a display panel;
- and the drive method comprises:
- detecting whether a spectrum of a drive signal is spread when the drive signal is received, and the drive signal is configured to drive the display panel;
- outputting a clock signal output from the control module to the source drive module if the spectrum of the drive signal is spread;
- performing spectrum spread on the clock signal according to a preset spread spectrum ratio if the spectrum of the drive signal is not spread;
- and
- outputting the clock signal with the spread spectrum to the source drive module;
- wherein, the step of detecting whether the spectrum of the drive signal is spread comprises:
- detecting whether a frequency of the drive signal is consistent with a frequency of a preset drive signal;
- determining that the spectrum of the drive signal is not spread if the frequency of the drive signal is consistent with the frequency of the preset drive signal;
- and
- determining that the spectrum of the drive signal is spread if the frequency of the drive signal is not consistent with the frequency of the preset drive signal.
A drive system for a display device, wherein the display device comprises:
- a control module, a source drive module, and a display panel;
- and the drive system comprises:
- a spread spectrum detection module, configured to detect whether a spectrum of a drive signal is spread when the drive signal is received, and the drive signal is configured to drive the display panel;
- a spread spectrum determination module, configured to output a clock signal output from the control module to the source drive module if the spectrum of the drive signal is spread;
- a spread spectrum module, configured to perform spectrum spread on the clock signal according to a preset spread spectrum ratio if the spectrum of the drive signal is not spread;
- and
- a data output module, configured to output the clock signal with the spread spectrum to the source drive module;
- wherein the spread spectrum detection module comprises:
- a first spread spectrum detection unit, configured to detect whether a frequency of the drive signal is consistent with a frequency of a preset drive signal;
- a first determination unit, configured to determine that the spectrum of the drive signal is not spread if the frequency of the drive signal is consistent with the frequency of the preset drive signal;
- and
- a second determination unit, configured to determine that the spectrum of the drive signal is spread if the frequency of the drive signal is not consistent with the frequency of the preset drive signal.
A drive method for a display device, wherein the display device comprises:
- a control module, a source drive module, and a display panel;
- and the drive method comprises:
- detecting whether a drive signal is a variable frequency signal when the drive signal is received, and the drive signal is configured to drive the display panel;
- outputting a clock signal output from the control module to the source drive module if the drive signal is a constant frequency signal;
- performing spectrum spread on the clock signal according to a preset spread spectrum ratio if the drive signal is a variable frequency signal;
- and
- outputting the clock signal with the spread spectrum to the source drive module.
Dependencies are inferred from the claim text.