Display method and display device for displaying picture in visible region of flexible display screen

1. A display method based on a flexible display screen, comprising:

determining a width of a visible region of the flexible display screen;

determining data lines within a range of the visible region of the flexible display screen according to the width of the visible region of the flexible display screen;

outputting display data to the data lines within the range of the visible region of the flexible display screen, so as to display a picture in the visible region of the flexible display screen, wherein at least one side of the flexible display screen is fixed onto a rotator, such that the width of the visible region of the flexible display screen is lengthened or shortened during rotation of the rotator; and

wherein the determining the width of the visible region of the flexible display screen includes:

determining a first rotation data of the flexible display screen, the first rotation data including a rotation rate and a rotation direction of the flexible display screen,

determining a second rotation data of the flexible display screen, the second rotation data including a rotation time of the flexible display screen, and

determining the width of the visible region of the flexible display screen according to the first rotation data and the second rotation data.

2. The display method according to claim 1 , wherein,

the determining the width of the visible region of the flexible display screen according to the first rotation data and the second rotation data includes:

performing an integral operation to determine a variation width of the flexible display screen according to the rotation rate and the rotation time; and

determining the width of the visible region of the flexible display screen, according to an original display width of the flexible display screen, the variation width of the flexible display screen and the rotation direction; the original display width including a reset display width of the flexible display screen or a historical display width of the flexible display screen.

3. The display method according to claim 1 , wherein,

the determining the width of the visible region of the flexible display screen according to the first rotation data and the second rotation data includes:

performing an integral operation to determine a variation width of the flexible display screen according to the rotation rate and the rotation time; and

determining the width of the visible region of the flexible display screen according to an original rotation width of the flexible display screen, a maximum width of the flexible display screen, the variation width of the flexible display screen and the rotation direction; the original rotation width including a reset rotation width of the flexible display screen or a historical rotation width of the flexible display screen.

4. The method according to claim 2 , wherein, before the determining the first rotation data and the second rotation data of the flexible display screen, the method further comprises: performing a reset operation on the flexible display screen with the rotator, so that the flexible display screen has the reset display width.

5. The method according to claim 1 , wherein, a second sensor is mounted on the rotator, and the first rotation data is measured by the second sensor.

6. The method according to claim 1 , wherein, the at least one side of the flexible display screen is parallel to an extension direction of the data line.

7. The method according to claim 1 , wherein, the rotator include a first rotator and a second rotator, a first side of the flexible display screen is fixed onto the first rotator, a second side of the flexible display screen is fixed onto the second rotator, and the first side and the second side of the flexible display screen are opposite to each other.

8. A display device based on a flexible display screen, comprising a control circuit, wherein the control circuit includes:

a display width determining sub-circuit, configured to determine a width of a visible region of the flexible display screen;

a data line range determining sub-circuit, configured to determine data lines within a range of the visible region of the flexible display screen according to the width of the visible region of the flexible display screen; and

a display data outputting sub-circuit, configured to output display data to the data lines within the range of the visible region of the flexible display screen, so as to display a picture in the visible region of the flexible display screen, and

wherein the display device further comprises a rotator,

wherein at least one side of the flexible display screen is fixed onto the rotator, such that the width of the visible region of the flexible display screen is lengthened or shortened during rotation of the rotator,

wherein the control circuit further includes: a first rotation data receiving sub-circuit, configured to receive a first rotation data of the flexible display screen, the first rotation data including a rotation rate and a rotation direction of the flexible display screen; and a second rotation data obtaining sub-circuit, configured to obtain a second rotation data of the flexible display screen, the second rotation data including a rotation time of the flexible display screen, and

wherein the display width determining sub-circuit is configured to: determine the width of the visible region of the flexible display screen according to the first rotation data and the second rotation data.

9. The display device according to claim 8 , wherein, the display width determining sub-circuit includes:

a variation width determining sub-circuit, configured to perform an integral operation to determine a variation width of the flexible display screen according to the rotation rate and the rotation time; and

a display width first determining sub-circuit, configured to determine the width of the visible region of the flexible display screen, according to an original display width of the flexible display screen, the variation width of the flexible display screen and the rotation direction; the original display width of the flexible display screen including a reset display width of the flexible display screen or a historical display width of the flexible display screen.

10. The display device according to claim 8 wherein, the display width determining sub-circuit includes:

a variation width determining sub-circuit, configured to perform an integral operation to determine a variation width of the flexible display screen according to the rotation rate and the rotation time; and

a display width second determining sub-circuit, configured to determine the width of the visible region of the flexible display screen according to an original rotation width of the flexible display screen, a maximum width of the flexible display screen, the variation width of the flexible display screen and the rotation direction; the original rotation width of the flexible display screen including a reset rotation width of the flexible display screen or a historical rotation width of the flexible display screen.

11. The display device according to claim 9 , wherein, the control circuit further includes a reset operation sub-circuit, and the reset operating sub-circuit is configured to: control the rotator performing a reset operation on the flexible display screen, so that the flexible display screen has the reset display width, before the first rotation data receiving sub-circuit receives the first rotation data of the flexible display screen and the second rotation data obtaining sub-circuit obtains the second rotation data of the flexible display screen.

12. The display device according to claim 8 , further comprising a second sensor, wherein, the second sensor is mounted on the rotator, and the first rotation data is measured by the second sensor.

13. The display device according to claim 8 , wherein, the at least one side of the flexible display screen is parallel to an extension direction of the data line.

14. The display device according to claim 8 , wherein, the rotator include a first rotator and a second rotator, a first side of the flexible display screen is fixed onto the first rotator, a second side of the flexible display screen is fixed onto the second rotator, and the first side and the second side of the flexible display screen are opposite to each other.

15. The method according to claim 3 , wherein, before the determining the first rotation data and the second rotation data of the flexible display screen, the method further comprises: performing a reset operation on the flexible display screen with the rotator, so that the flexible display screen has the reset rotation width.

16. The display device according to claim 10 , wherein, the control circuit further includes a reset operation sub-circuit, and the reset operating sub-circuit is configured to: control the rotator performing a reset operation on the flexible display screen, so that the flexible display screen has the reset rotation width, before the first rotation data receiving sub-circuit receives the first rotation data of the flexible display screen and the second rotation data obtaining sub-circuit obtains the second rotation data of the flexible display screen.