Patent ID: 11908401
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A display apparatus comprising:
a display panel configured to display an image based on input image data;
a driving controller configured to generate a data signal based on the input image data, the driving controller comprising:
a logo determiner configured to determine whether or not the input image data includes a logo;
a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo;
a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area;
a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area;
a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area; and
a data driver configured to convert the data signal to a data voltage and to output the data voltage to the display panel,
wherein the logo determiner is configured to determine that the input image data includes the logo in response to a fixed image being maintained over a reference time period and a size of the fixed image being included in a reference size range.