Display device
AssigneeSamsung Display Co., Ltd.
InventorsDONGIN KIM, Jinkyu Park, Yohan Lee, Kihoon Choi, Hyunseok Hong
Life of this patent
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Abstract
A display device includes: a display panel; a driving frequency converter circuit configured to convert a driving frequency according to an input image data. A common voltage controller outputs a common voltage data corresponding to the driving frequency; and a common voltage generator receives the common voltage data to generate a common voltage and outputs the common voltage to the display panel. The common voltage has an inclined waveform within an integer multiple of a frame period.
Claims20
A display device comprising:
- a display panel;
- a driving frequency converter circuit configured to convert a driving frequency according to an input image data;
- a common voltage controller configured to control output of a common voltage data corresponding to the driving frequency;
- and
- a common voltage generator configured to receive the common voltage data and generate a common voltage and output the common voltage to the display panel,
- wherein the generated common voltage has an inclined waveform within an integer multiple of a frame period.
A display device comprising:
- a display panel including a plurality of gate lines, and a plurality of data lines insulated from and intersecting the plurality of gate lines, and a plurality of pixels electrically connected to the plurality of gate lines and the plurality of data lines;
- a timing controller circuit configured to receive a digital image data and identify whether the digital image data comprises a still image data or a moving image data;
- a data driver circuit configured to convert a digital image data signal into analog image data signals applied to the plurality of data lines;
- a gate driver circuit configured to generate gate signals in response output to the plurality of gate lines;
- a power management integrated circuit (PMIC) configured to:
- output a driving voltage and a gamma voltage to the data driver circuit, output the gate driving voltages to the gate driver circuit, and output a common voltage to the display panel;
- wherein the common voltage has an inclined waveform within an integer multiple of a frame period.
A non-transitory machine readable medium having stored thereon executable instructions to cause a display device to perform operations comprising:
- converting, by a driving frequency converter circuit, a driving frequency according to whether input image data is a still image;
- providing, by a common voltage controller, output data and gate control signals to data drivers and gate drivers including the driving frequency;
- providing a common voltage to a display panel in which the common voltage corresponds to the driving frequency, wherein the common voltage has an inclined waveform within an integer multiple of a frame period of an image displayed by the display panel.
Dependencies are inferred from the claim text.