Display device and method of controlling the same

1. A display device comprising:

a display panel including a plurality of panel pixel lines; and

a controller configured to control the display panel,

wherein the plurality of panel pixel lines includes:

first type of panel pixel lines each composed of a plurality of first type of panel pixels disposed in a first direction; and

second type of panel pixel lines each composed of a plurality of second type of panel pixels disposed in the first direction,

wherein the first type of panel pixel lines and the second type of panel pixel lines are disposed alternately in a second direction perpendicular to the first direction,

wherein each first type of panel pixel includes a first red subpixel and a first blue subpixel disposed in the second direction and a first green subpixel disposed adjacent to the first red subpixel and the first blue subpixel toward a first side of the first direction and between the first red subpixel and the first blue subpixel in the second direction,

wherein each second type of panel pixel includes a second red subpixel and a second blue subpixel disposed in the second direction and a second green subpixel disposed adjacent to the second red subpixel and the second blue subpixel toward a second side of the first direction and between the second red subpixel and the second blue subpixel in the second direction, and

wherein the controller is configured to:

receive image data for a picture frame;

generate luminance data for the display panel from the image data;

modify the luminance data for the display panel by raising luminance values of a first red subpixel and a first blue subpixel adjacent to a first green subpixel located at an end of a first display line, the first display line being composed of a plurality of the first type of panel pixels consecutively arranged toward the first side of the first direction and assigned luminance values higher than 0; and

modify the luminance data for the display panel by raising luminance values of a second red subpixel and a second blue subpixel adjacent to a second green subpixel located at an end of a second display line, the second display line being composed of a plurality of the second type of panel pixels consecutively arranged toward the second side of the first direction and assigned luminance values higher than 0.

2. The display device according to claim 1 , wherein the controller is configured to modify the luminance data for the display panel by lowering luminance values of at least a part of first red subpixels and at least a part of first blue subpixels included in the first display line and luminance values of at least a part of second red subpixels and at least a part of second blue subpixels included in the second display line.

3. The display device according to claim 2 ,

wherein a total luminance value of modified luminance values of the first red subpixels included in the first display line and a luminance value of the adjacent first red subpixel is equal to a total luminance value of the first red subpixels included in the first display line before the modification,

wherein a total luminance value of modified luminance values of the first blue subpixels included in the first display line and a luminance value of the adjacent first blue subpixel is equal to a total luminance value of the first blue subpixels included in the first display line before the modification,

wherein a total luminance value of modified luminance values of the second red subpixels included in the second display line and a luminance value of the adjacent second red subpixel is equal to a total luminance value of the second red subpixels included in the second display line before the modification, and

wherein a total luminance value of modified luminance values of the second blue subpixels included in the second display line and a luminance value of the adjacent second blue subpixel is equal to a total luminance value of the second blue subpixels included in the second display line before the modification.

4. The display device according to claim 2 , wherein the controller is configured to modify the luminance data for the display panel by lowering luminance values of all first red subpixels and first blue subpixels in the first display line at a same rate and luminance values of all second red subpixels and second blue subpixels in the second display line at the same rate.

5. The display device according to claim 4 , wherein the controller is configured to modify the luminance data for the display panel by:

reassigning a luminance value reduced from the total luminance value of the all first red subpixels in the first display line to the adjacent first red subpixel;

reassigning a luminance value reduced from the total luminance value of the all first blue subpixels in the first display line to the adjacent first blue subpixel;

reassigning a luminance value reduced from the total luminance value of the all second red subpixels in the second display line to the adjacent second red subpixel; and

reassigning a luminance value reduced from the total luminance value of the all second blue subpixels in the second display line to the adjacent second blue subpixel.

6. The display device according to claim 2 ,

wherein a reduction rate of luminance values of first red subpixels at both ends of the first display line is higher than a reduction rate of a luminance value of a first red subpixel at the middle of the first display line,

wherein a reduction rate of luminance values of first blue subpixels at both ends of the first display line is higher than a reduction rate of a luminance value of a first blue subpixel at the middle of the first display line,

wherein a reduction rate of luminance values of second red subpixels at both ends of the second display line is higher than a reduction rate of a luminance value of a second red subpixel at the middle of the first display line, and

wherein a reduction rate of luminance values of second blue subpixels at both ends of the second display line is higher than a reduction rate of a luminance value of a second blue subpixel at the middle of the first display line.

7. The display device according to claim 2 , wherein the controller is configured to select the first display line and the second display line from display lines consisting of fewer than a predetermined number of panel pixels.

8. A method of controlling a display device,

the display device including a display panel including a plurality of panel pixel lines,

the plurality of panel pixel lines including:

first type of panel pixel lines each composed of a plurality of first type of panel pixels disposed in a first direction; and

second type of panel pixel lines each composed of a plurality of second type of panel pixels disposed in the first direction,

the first type of panel pixel lines and the second type of panel pixel lines being disposed alternately in a second direction perpendicular to the first direction,

each first type of panel pixel including a first red subpixel and a first blue subpixel disposed in the second direction and a first green subpixel disposed adjacent to the first red subpixel and the first blue subpixel toward a first side of the first direction and between the first red subpixel and the first blue subpixel in the second direction,

each second type of panel pixel including a second red subpixel and a second blue subpixel disposed in the second direction and a second green subpixel disposed adjacent to the second red subpixel and the second blue subpixel toward a second side of the first direction and between the second red subpixel and the second blue subpixel in the second direction, and

the method comprising:

receiving image data for a picture frame;

generating luminance data for the display panel from the image data;

modifying the luminance data for the display panel by raising luminance values of a first red subpixel and a first blue subpixel adjacent to a first green subpixel located at an end of first display line, the first display line being composed of a plurality of the first type of panel pixels consecutively arranged toward the first side of the first direction and assigned luminance values higher than 0, and

modifying the luminance data for the display panel by raising luminance values of a second red subpixel and a second blue subpixel adjacent to a second green subpixel located at an end of a second display line, the second display line being composed of a plurality of the second type of panel pixels consecutively arranged toward the second side of the first direction and assigned luminance values higher than 0.