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US 11,455,935 B2Granted
Display device and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorsYoung Soo Sohn, Jong Man Kim, Sung Mo Yang, Seung Young Choi
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Abstract
A display device according to an embodiment includes a display panel including a plurality of pixels, and an image sticking compensator configured to generate a second image data by reflecting an age data accumulated in a first image data input from an external source. The image sticking compensator generates the age data by accumulating a deterioration data generated by reflecting a frequency weight corresponding to a determined frequency of a previous frame to an image data of the previous frame after the image data of the previous frame is stored.
Claims18
A display device comprising:
- a display panel including a plurality of pixels;
- a timing controller configured to receive a first image data and a data enable signal of a present frame from an external source;
- and
- an image sticking compensator configured to generate a second image data by reflecting an age data accumulated in the first image data,
- wherein the image sticking compensator generates the age data by reflecting a frequency weight corresponding to a frequency of a previous frame to an image data of the previous frame after the image data of the previous frame is stored, and generates a deterioration data of the previous frame by reflecting the frequency weight of the previous frame,
- wherein the timing controller determines the frequency of the previous frame before the data enable signal of the present frame is applied to the timing controller, and calculates the frequency weight of the previous frame by reflecting the frequency of the previous frame,
- wherein the image sticking compensator updates the age data by reflecting the deterioration data, and
- wherein the timing controller provides the data enable signal of the present frame to the image sticking compensator after the age data is updated.
5 more elements
A display device comprising:
- a display panel including a plurality of pixels;
- a timing controller configured to receive a first image data and a data enable signal of a present frame from an external source;
- a scaling ratio calculator configured to calculate a scaling ratio of the display panel;
- a luminance corrector configured to generate a scaled first image data by calculating the first image data and the scaling ratio;
- an age data generator configured to generate an age data based on the scaled first image data;
- a memory configured to store the age data and the scaled first image data of a previous frame;
- a compensator configured to output a second image data based on the scaled first image data and the age data;
- a gate driver configured to provide a scan signal to the display panel through a plurality of gate lines;
- a data driver configured to provide a data signal corresponding to the second image data to the display panel through a plurality of data lines;
- and
- a timing controller configured to control driving of the gate driver and the data driver,
- wherein the age data generator generates the age data accumulated up to the previous frame by reflecting a frequency weight is applied to a grayscale data of one frame based on the scaled first image data, and a previously accumulated age data, and generates a deterioration data of the previous frame by reflecting the frequency weight of the previous frame,
- wherein the timing controller determines a frequency of the previous frame before the data enable signal of the present frame is applied to the timing controller, and calculates the frequency weight of the previous frame by reflecting the frequency of the previous frame,
- wherein the age data generator updates the age data by reflecting the deterioration data up to the previous frame, and
- wherein the timing controller provides the data enable signal of the present frame to the age data generator after the age data is updated.
12 more elements
A method of driving a display device, the method comprising steps:
- determining a frequency after data of a previous frame is stored;
- calculating a frequency weight based on the frequency;
- receiving a first image data;
- generating a scaled first image data by reflecting a scaling ratio on the first image data;
- generating a frame deterioration data by reflecting a frequency weight of the previous frame corresponding to a frequency of the previous frame based on the scaled first image data;
- and
- storing an age data by reflecting the frequency weight, and distinguishing and storing the scaled first image data of the previous frame,
- wherein the timing controller determines the frequency of the previous frame before a data enable signal of a present frame is applied to the timing controller, and calculates the frequency weight of the previous frame by reflecting the frequency of the previous frame,
- wherein the age data generator updates the age data by reflecting the frame deterioration data, and
- wherein the timing controller provides the data enable signal of the present frame to the age data generator after the age data is updated.
7 more elements
Dependencies are inferred from the claim text.