Display device and control method thereof

1. A display device comprising: a display panel to display a frame having a resolution up to a first frame rate; a plurality of image processing units; and a processor configured to: based on change from a first mode of displaying a content, among a plurality of modes of the display device, to a second mode of displaying plural contents, among the plurality of modes of the display device, change frame rates of a plurality of contents output from the plurality of image processing units to a same frame rate, mix the plurality of contents with the frame rates having been changed to the same frame rate, and change a vertical resolution of the mixed content, wherein the display panel outputs the content of which the vertical resolution has been changed at a second frame rate greater than the first frame rate.

2. The display device of claim 1 , wherein

the frame rates of the plurality of contents is changed to the same frame rate, the plurality of contents with the frame rates changed to the same frame rate are mixed, and the vertical resolution of the mixed content is changed based on at least one of the plurality of contents being a predetermined type.

3. The display device of claim 2 , wherein the processor is configured to:

identify types of the plurality of contents based on metadata of the plurality of contents, and

the predetermined type is one of contents and sport contents of greater than or equal to a threshold frame rate.

4. The display device of claim 1 , wherein the processor is configured to:

skip or repeat frames of remaining contents among the plurality of contents based on one of the plurality of contents output from the plurality of image processing units and change the frame rates of the plurality of contents to the same frame rate.

5. The display device of claim 1 , further comprising:

a frame rate change unit that receives the mixed content of which vertical resolution has been changed from the processor, and changes the frame rate of the content of which vertical resolution has been changed to the second frame rate,

wherein the display panel outputs the mixed content at the second frame rate.

6. The display device of claim 5 ,

wherein the frame rate change unit, based on the frame rate of the mixed content of which vertical resolution has been changed being smaller than the second frame rate, changes the frame rate of the mixed content of which vertical resolution has been changed to the second frame rate through copying or interpolation of the frame of the content of which vertical resolution has been changed.

7. The display device of claim 1 , further comprising:

a plurality of frame rate change units connected to each of the plurality of image processing units,

wherein the plurality of frame rate change units change the plurality of contents output from the plurality of image processing units to the second frame rate, and provide the plurality of contents changed to the second frame rate to the processor.

8. The display device of claim 1 , wherein the processor is configured to:

based on one of the plurality of contents being a variable refresh rates (VRR) content, change the frame rates of the plurality of contents to correspond to the VRR content.

9. The display device of claim 1 , wherein the processor is configured to:

change the vertical resolution of the mixed content based on an equal division value of a vertical resolution of the display panel.

10. The display device of claim 1 , wherein the display panel comprises:

a plurality of gate lines and a plurality of data lines, and

wherein the display device simultaneously drives two or more adjacent gate lines among the plurality of gate lines based on the resolution of the display panel and the vertical resolution of the mixed content, and

each of the plurality of data lines provides data to pixels of a same column.

11. A control method of a display device comprising a display panel to display a frame of a first resolution up to a first frame rate, the method comprising: based on change from a first mode of displaying a content, among a plurality of modes of the display device, to a second mode of displaying plural contents, among the plurality of modes of the display device, changing frame rates of a plurality of contents output from a plurality of image processing units to a same frame rate; mixing the plurality of contents with the frame rates having been changed to the same frame rate; changing a vertical resolution of the mixed content; and outputting the mixed content of which the vertical resolution has been changed at a second frame rate greater than the first frame rate through the display panel.

12. The control method of claim 11 , wherein the vertical resolution of the mixed content is changed based on at least one of types of the plurality of contents being a predetermined type.

13. The control method of claim 12 , wherein the changing the vertical resolution of the mixed content comprises:

identifying types of the plurality of contents based on metadata of the plurality of contents, and

the predetermined type is one of contents and sport contents of greater than or equal to a threshold frame rate.

14. The control method of claim 11 , wherein the changing to the same frame rate comprises: skipping or repeating frames of remaining contents among the plurality of contents based on one of the plurality of contents output from the plurality of image processing units and changing the frame rates of the plurality of contents to the same frame rate.

15. The control method of claim 11 , further comprising:

changing the frame rate of the mixed content of which vertical resolution has been changed to the second frame rate,

wherein the outputting at the second frame rate comprises:

outputting the mixed content changed to the second frame rate through the display panel.

16. The display device of claim 15 ,

wherein the changing the frame rate of the mixed content of which vertical resolution has been changed to the second frame rate comprises, based on the frame rate of the mixed content of which vertical resolution has been changed being smaller than the second frame rate, changing the frame rate of the mixed content of which vertical resolution has been changed to the second frame rate through copying or interpolation of the frame of the content of which vertical resolution has been changed.

17. The display device of claim 11 , further comprising:

changing the plurality of contents with the frame rates having been changed to the same frame rate to the second frame rate, and

wherein the mixing comprises mixing the plurality of contents changed to the second frame rate.

18. The display device of claim 11 , wherein the changing frame rates of the plurality of contents to the same frame rate comprises, based on one of the plurality of contents being a variable refresh rates (VRR) content, changing the frame rates of the plurality of contents to correspond to the VRR content.

19. The display device of claim 11 , wherein the changing the vertical resolution of the mixed content comprises changing the vertical resolution of the mixed content based on an equal division value of a vertical resolution of the display panel.

20. A non-transitory recording medium for storing a program for performing an operation method of a display device for displaying a frame of a first resolution up to a first frame rate, wherein the operation method comprising: based on change from a first mode of displaying a content, among a plurality of modes of the display device, to a second mode of displaying plural contents, among the plurality of modes of the display device, changing frame rates of a plurality of contents output from a plurality of image processing units to a same frame rate; mixing the plurality of contents with the frame rates having been changed to the same frame rate; changing a vertical resolution of the mixed content; and outputting the mixed content of which the vertical resolution has been changed at a second frame rate greater than the first frame rate through the display panel.