Display device and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorsKihyun Pyun, Sung-Mo Yang
Life of this patent
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Abstract
A display device may include a display panel which displays an image based on a data voltage, a driving controller including a net power control setter which determines a scale factor for adjusting a gray scale of (N+1)th frame data based on a load of Nth frame data and a net power control reference value, where the driving controller generates a data signal based on input image data, and N is a natural number greater than or equal to 2, a data driver which converts the data signal into the data voltage and outputs the data voltage to the display panel, and a power supply voltage generator which senses a power supply current applied to the display panel in an Nth frame and generates a power supply voltage based on a current level of the power supply current.
Claims18
A display device comprising:
- a display panel which displays an image based on a data voltage;
- a driving controller which generates a data signal based on input image data;
- a data driver which converts the data signal into the data voltage and outputs the data voltage to the display panel;
- and
- a power supply voltage generator which senses a power supply current applied to the display panel in a frame and adjusts a power supply voltage applied to the display panel based on a current level of the power supply current,
- wherein the driving controller performs a net power control operation for an (N+1)th frame, which adjusts a gray scale of (N+1)th frame data based on a load of Nth frame data, where N is a natural number greater than or equal to 2.
A method of driving a display device, the method comprising:
- displaying an image on a display panel;
- sensing a power supply current applied to the display panel in a frame;
- generating a power supply voltage based on a current level of the power supply current;
- and
- performing a net power control operation for an (N+1)th frame, which adjusts a gray scale of (N+1)th frame data based on a load of Nth frame data, where N is a natural number greater than or equal to 2.
Dependencies are inferred from the claim text.