Display apparatus and method of compensating image of display panel using the same
AssigneeSamsung Display Co., Ltd.
InventorsSangmyeon Han, Seungho Park, Byoungkwan An, Jaehoon Lee
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Abstract
A display apparatus includes a display panel, a driving controller and a data driver. The display panel includes a pixel. The driving controller generates an age compensation value using a sensed age generated based on sensing data of the pixel and an accumulated age generated based on accumulated grayscale values of input image data, generates a final age based on the age compensation value, and compensates a grayscale value of the input image data based on a final age to generate a data signal. The data driver converts the data signal to a data voltage and outputs the data voltage to the display panel.
Claims19
A display apparatus, comprising:
- a display panel that includes a pixel;
- a driving controller that
- converts sensing data received from the pixel, having a first resolution, to a reference resolution,
- converts accumulated grayscale values of input image data, having a second resolution, to the reference resolution,
- generates a sensed age based on the converted sensing data;
- generates an accumulated age based on the converted accumulated grayscale values,
- generates an age compensation value at the reference resolution using the sensed age and the accumulated age,
- generates a final age based on the age compensation value, and
- compensates a grayscale value of the input image data based on the final age wherein a data signal is generated;
- and
- a data driver that converts the data signal to a data voltage and outputs the data voltage to the display panel,
- wherein a first cycle that generates the sensed age differs from a second cycle that generates the accumulated age,
- wherein the first resolution of the sensing data and the second resolution of the accumulated age are not equal to each other.
A method of compensating an image of a display panel, the method comprising:
- converting sensing data received from a pixel of the display panel and having a first resolution to a reference resolution;
- converting accumulated grayscale values of input image data and having a second resolution to the reference resolution;
- generating a sensed age based on the converted sensing data;
- generating an accumulated age based on the converted accumulated grayscale values;
- generating an age compensation value at the reference resolution using the sensed age and the accumulated age;
- generating a final age based on the age compensation value;
- and
- compensating a grayscale value of the input image data based on the final age,
- wherein a first cycle that generates the sensed age differs from a second cycle that generates the accumulated age,
- wherein the first resolution of the sensing data and the second resolution of the accumulated age are not equal to each other.
A display apparatus, comprising:
- a display panel that includes a pixel;
- a driving controller that includes
- a first resolution convertor that converts sensing data received from the pixel, having a first resolution, to a reference resolution,
- a second resolution convertor that converts accumulated grayscale values of input image data, having a second resolution, to the reference resolution,
- an age determiner that generates a sensed age based on the converted sensing data;
- an age accumulator that generates an accumulated age by accumulating the converted compensated grayscale values;
- a compensation value determiner that determines an age compensation value using the sensed age and the accumulated age,
- a grayscale compensator that compensates an input grayscale value of the input image data and generates the compensated grayscale value based on a final age,
- wherein a first cycle that generates the sensed age differs from a second cycle that generates the accumulated age,
- wherein the first resolution of the sensing data and the second resolution of the accumulated age are not equal to each other.
Dependencies are inferred from the claim text.