Display module, display device including the same, and method of operating the same

1 . A display module comprising:

a display panel including a display area for displaying an image;

a lens unit disposed on the display area;

an image generator configured to receive visual sensing data from the outside by sensing an eye of a user, identify a reference area on the display area, based on parameter data and the visual sensing data, and generate a converted image by adjusting grayscales of a target area adjacent to the reference area in an input image; and

a controller configured to control the display panel, based on the converted image,

wherein the image generator is configured to determine a size of the reference area according to the parameter data,

wherein the image generator includes:

a coordinate generator configured to determine a viewpoint coordinate corresponding to a sight of the user on the display area, based on the visual sensing data;

an image processor configured to identify the reference area on the display area, based on the determined viewpoint coordinate and the parameter data, and generate gain map data including gain values corresponding to the grayscales of the target area in the input image, based on the reference area; and

a grayscale converter configured to generate the converted image from the input image, based on the gain values corresponding to the grayscales of the target area in the input image.

2 . The display module of claim 1 , wherein the grayscales of the target area in the converted image are lower than the grayscales of the target area in the input image.

3 . The display module of claim 1 , wherein the image generator is configured to extract a reference position corresponding to a sight of the eye of the user on the display area according to the visual sensing data, and identify an area adjacent to the reference position as the reference area.

4 . The display module of claim 1 , further comprising a storage medium configured to store the parameter data.

5 . The display module of claim 1 , wherein the lens unit allows the image displayed by the display area to pass therethrough such that a brightness of an image expressed by the lens unit is uniformly sensed by the user.

6 . The display module of claim 5 , wherein the parameter data is provided according to a field of view and a pixel per degree of the image expressed by the lens unit.

7 . The display module of claim 6 , wherein the parameter data is provided according to a maximum luminance of the image displayed by the display panel.

8 . The display module of claim 1 , wherein the visual sensing data is generated from each of a first frame and a second frame successive to the first frame, and

wherein the image generator generates the converted image corresponding to the first frame, based on the visual sensing data generated in the first frame, and generates the converted image corresponding to the second frame, based on the visual sensing data generated in the second frame.

9 . A display device comprising:

a display module including a display panel including a display area for displaying an image and a lens unit disposed on the display area;

a visual sensor configured to generate visual sensing data by sensing an eye of a user; and

an image generator configured to identify a reference area on the display area, based on parameter data and the visual sensing data, and generate a converted image by adjusting grayscales of a target area adjacent to the reference area in an input image,

wherein the display module controls the display panel, based on the converted image, and

wherein the image generator is configured to determine a size of the reference area according to the parameter data,

wherein the image generator includes:

a coordinate generator configured to determine a viewpoint coordinate corresponding to a sight of the user on the display area, based on the visual sensing data;

an image processor configured to identify the reference area on the display area, based on the determined viewpoint coordinate and the parameter data, and generate gain map data including gain values corresponding to the grayscales of the target area in the input image, based on the reference area; and

a grayscale converter configured to generate the converted image from the input image, based on the gain values corresponding to the grayscales of the target area in the input image.

10 . The display device of claim 9 , wherein the grayscales of the target area in the converted image are lower than the grayscales of the target area in the input image.

11 . The display device of claim 9 , further comprising a memory device configured to store the parameter data.

12 . A method of controlling a display panel including a lens unit and a display area disposed to overlap with the lens unit, the method comprising:

generating visual sensing data by sensing an eye of a user;

identifying a reference area on the display area, based on parameter data and the visual sensing data, and generating a converted image by adjusting grayscales of a target area adjacent to the reference area in an input image;

controlling the display panel, based on the converted image,

wherein a size of the reference area is determined according to the parameter data;

determining a viewpoint coordinate corresponding to a sight of the user on the display area, based on the visual sensing data;

identifying the reference area on the display area, based on the determined viewpoint coordinate and the parameter data;

generating gain map data including gain values corresponding to the grayscales of the target area in the input image, based on the identified reference area; and

generating the converted image from the input image, based on the gain values corresponding to the grayscales of the target area in the input image.