Display device and display method thereof

1. A display method of a display device, comprising following steps:

obtaining a target display frequency and a target backlight brightness value of a target display device;

obtaining a first display frequency and a first backlight brightness value of the target display device within a predetermined period;

confirming a backlight brightness compensation value of the target display device within the predetermined period according to a differential between the target display frequency and the first display frequency when the first display frequency and the target display frequency are different; and

compensating for the first backlight brightness value according to the backlight brightness compensation value;

wherein before the step of obtaining the target display frequency and the target backlight brightness value of the target display device, the method comprises following steps:

inputting an enabling signal into a timing controller of the target display device, wherein the enabling signal comprises a vertical blanking (VBlank) period; and

obtaining a refresh mode of the target display device;

wherein when the refresh mode of the target display device has a constant display frequency, the VBlank period is a constant VBlank period;

when the refresh mode of the target display device has a variable display frequency, the VBlank period is a variable VBlank period; and

wherein the step of obtaining the target display frequency and the target backlight brightness value of the target display device comprises following steps:

obtaining a proportion of usage time of different display frequencies of the target display device within a historical period;

obtaining a second display frequency of the target display device, wherein a proportion of usage time of the second display frequency is greater than or equal to a first threshold value; and

setting the second display frequency to be the target display frequency of the target display device, and setting a backlight brightness value corresponding to the second display frequency to be the target backlight brightness value of the target display device.

2. The display method of the display device of claim 1 , wherein the step of obtaining the target display frequency and the target backlight brightness value of the target display device comprises following steps:

obtaining a proportion of usage time of different display frequencies of the target display device within a historical period;

obtaining a third display frequency of the target display device, wherein a proportion of usage time of the third display frequency is less than a first threshold value;

obtaining a fourth display frequency of the target display device, wherein a proportion of usage time of the fourth display frequency is greater than or equal to the threshold value; and

setting the fourth display frequency to be the target display frequency of the target display device, setting a backlight brightness value corresponding to the fourth display frequency to be the target backlight brightness value of the target display device.

3. The display method of the display device of claim 1 , wherein the step of confirming the backlight brightness compensation value of the target display device within the predetermined period according to the differential between the target display frequency and the first display frequency when the first display frequency and the target display frequency are different comprises following steps:

obtaining the differential between the target display frequency and the first display frequency when the first display frequency and the target display frequency are different;

obtaining a first refresh duration of a display frame image of a backlight unit of the display device corresponding to a target display frequency phase, and obtaining a second refresh duration of the display frame image of the backlight unit of the display device corresponding to the first display frequency phase;

obtaining a third refresh duration of the backlight unit when the differential is greater than 0, wherein the third refresh duration is equal to a differential between the second refresh duration and the first refresh duration; and

confirming the backlight brightness compensation value of the target display device within the predetermined period during the third refresh duration of the backlight unit.

4. The display method of the display device of claim 3 , wherein when the target display frequency is greater than the first display frequency, the step of confirming the backlight brightness compensation value of the target display device within the predetermined period during the third refresh duration corresponding to the backlight unit comprises following steps:

confirming a refresh duration t and refresh times N of the backlight unit of a backlight driver chip of the display device during the third refresh duration, wherein t is greater than 0 and N is a positive integer; and

compensating for a brightness of the backlight unit by the backlight driver chip to confirm the backlight brightness compensation value of the target display device within the predetermined period during an n th refresh time in the third refresh duration of the backlight unit, wherein n is less than or equal to N and is a positive integer.

5. The display method of the display device of claim 4 , wherein in the step of compensating for a brightness of the backlight unit by the backlight driver chip during the n th refresh time in the third refresh duration of the backlight unit, a plurality of compensation values provided by the backlight driver chip for compensating for a brightness of the backlight unit in every refresh time t are same.

6. The display method of the display device of claim 3 , wherein the step of confirming the backlight brightness compensation value of the target display device within the predetermined period according to the differential between the target display frequency and the first display frequency when the first display frequency and the target display frequency are different comprises a following step:

confirming the backlight brightness compensation value of the target display device within the predetermined period during the second refresh duration of the backlight unit when the differential is less than 0.

7. The display method of the display device of claim 1 , wherein in the step of compensating for the first backlight brightness value according to the backlight brightness compensation value, after the first backlight brightness value is compensated, the first backlight brightness value is equal to the target backlight brightness value.

8. A display method of the display device, comprising following steps:

obtaining a target display frequency and a target backlight brightness value of a target display device;

obtaining a first display frequency and a first backlight brightness value of the target display device within a predetermined period;

confirming a backlight brightness compensation value of the target display device within the predetermined period according to a differential between the target display frequency and the first display frequency when the first display frequency and the target display frequency are different; and

compensating for the first backlight brightness value according to the backlight brightness compensation value;

wherein the step of obtaining the target display frequency and the target backlight brightness value of the target display device comprises following steps:

obtaining a proportion of usage time of different display frequencies of the target display device within a historical period;

obtaining a second display frequency of the target display device, wherein a proportion of usage time of the second display frequency is greater than or equal to a first threshold value; and

setting the second display frequency to be the target display frequency of the target display device, and setting a backlight brightness value corresponding to the second display frequency to be the target backlight brightness value of the target display device.

9. The display method of the display device of claim 8 , wherein the step of obtaining the target display frequency and the target backlight brightness value of the target display device comprises following steps:

obtaining a proportion of usage time of different display frequencies of the target display device within a historical period;

obtaining a third display frequency of the target display device, wherein a proportion of usage time of the third display frequency is less than a first threshold value;

obtaining a fourth display frequency of the target display device, wherein a proportion of usage time of the fourth display frequency is greater than or equal to the threshold value; and

setting the fourth display frequency to be the target display frequency of the target display device, setting a backlight brightness value corresponding to the fourth display frequency to be the target backlight brightness value of the target display device.

10. The display method of the display device of claim 8 , wherein the step of confirming the backlight brightness compensation value of the target display device within the predetermined period according to the differential between the target display frequency and the first display frequency when the first display frequency and the target display frequency are different comprises following steps:

obtaining the differential between the target display frequency and the first display frequency when the first display frequency and the target display frequency are different;

obtaining a first refresh duration of a display frame image of a backlight unit of the display device corresponding to a step of the target display frequency, and obtaining a second refresh duration of the display frame image of the backlight unit of the display device corresponding to a step of the first display frequency;

obtaining a third refresh duration of the backlight unit when the differential is greater than 0, wherein the third refresh duration is equal to a differential between the second refresh duration and the first refresh duration; and

confirming the backlight brightness compensation value of the target display device within the predetermined period during the third refresh duration of the backlight unit.

11. The display method of the display device of claim 10 , wherein when the target display frequency is greater than the first display frequency, the step of confirming the backlight brightness compensation value of the target display device within the predetermined period during the third refresh duration corresponding to the backlight unit comprises following steps:

confirming a refresh duration t and refresh times N of the backlight unit of a backlight driver chip of the display device during the third refresh duration, wherein t is greater than 0 and N is a positive integer; and

compensating for a brightness of the backlight unit by the backlight driver chip to confirm the backlight brightness compensation value of the target display device within the predetermined period during an n th refresh time in the third refresh duration of the backlight unit, wherein n is less than or equal to N and is a positive integer.

12. The display method of the display device of claim 11 , wherein in the step of compensating for a brightness of the backlight unit by the backlight driver chip during the n th refresh time in the third refresh duration of the backlight unit, a plurality of compensation values provided by the backlight driver chip for compensating for a brightness of the backlight unit in every refresh time t are same.

13. The display method of the display device of claim 10 , wherein the step of confirming the backlight brightness compensation value of the target display device within the predetermined period according to the differential between the target display frequency and the first display frequency when the first display frequency and the target display frequency are different comprises a following step:

confirming the backlight brightness compensation value of the target display device within the predetermined period during the second refresh duration of the backlight unit when the differential is less than 0.

14. The display method of the display device of claim 8 , wherein in the step of compensating for the first backlight brightness value according to the backlight brightness compensation value, after the first backlight brightness value is compensated, the first backlight brightness value is equal to the target backlight brightness value.

15. A display device, comprising:

a first obtaining module, wherein the first obtaining module is configured to obtain a target display frequency and a target backlight brightness value of a target display device;

a second obtaining module, wherein the second obtaining module is configured to obtain a first display frequency and a first backlight brightness value of the target display device;

a processing module, wherein the processing module is configured to confirm a backlight brightness compensation value of the target display device within a predetermined period according to a differential between the target display frequency and the first display frequency when the first display frequency and the target display frequency are different; and

a compensation module, wherein the compensation module is configured to compensate for the first backlight brightness value according to the backlight brightness compensation value;

wherein the processing module is configured to obtain a differential between the target display frequency and the first display frequency when the first display frequency and the target display frequency are different, and the processing module is configured to obtain a first refresh duration of a display frame image of a backlight unit of the display device corresponding to a target display frequency phase, and is configured to obtain a second refresh duration of the display frame image of the backlight unit of the display device corresponding to the first display frequency phase; and

wherein when the differential is greater than 0, the processing module is configured to obtain a third refresh duration of the backlight unit, and the third refresh duration is a differential between the second refresh duration and the first refresh duration.

16. The display device of claim 15 , wherein the first obtaining module is configured to obtain a refresh mode of the target display device; and

wherein when the refresh mode of the target display device has a constant display frequency, a vertical blanking (VBlank) period is a constant v VBlank period; and

when the refresh mode of the target display device has a variable display frequency, the VBlank period is a variable VBlank period.

17. The display device of claim 15 , wherein the compensation module is configured to adjust the compensated first backlight brightness value to the target backlight brightness value.