Display panel and display device

1. A display panel, comprising a display region and a non-display region surrounding the display region, the non-display region being provided with a plurality of sensing components, wherein

the plurality of sensing components each are configured to generate a first signal when the display panel is in a flattened state;

when the display panel is in a partially-rolled state, the display panel comprises a flattened part and a rolled part, a sensing component in the flattened part is configured to generate the first signal, and a sensing component in the rolled part is configured to generate a second signal; and

the plurality of sensing components each are configured to generate the second signal when the display panel is in a fully-rolled state;

wherein the display panel further comprises a controller electrically coupled with each of the plurality of sensing components, and configured to control, according to the first signal and the second signal, the flattened part to display an image when the display panel is in the partially-rolled state; and

each sensing component of the plurality of sensing components comprises:

a first input end;

a first detection end coupled with the controller;

a second input end;

a second detection end coupled with the controller;

a first resistor coupled between the first input end and the first detection end;

a second resistor coupled between the first detection end and the second input end;

a third resistor coupled between the second input end and the second detection end; and

a fourth resistor coupled between the second detection end and the first input end, wherein

a voltage difference between the first input end and the second input end is greater than zero; and

when the display panel is in the partially-rolled state,

for a sensing component in the flattened part, resistance values of the first resistor, the second resistor, the third resistor, and the fourth resistor are equal, and the sensing component is configured to generate the first signal; and

for a sensing component in the rolled part, resistance values of the first resistor and the third resistor are different from resistance values of the second resistor and the fourth resistor, and the sensing component is configured to generate the second signal;

wherein the display panel further comprises a first power line and a second power line, a voltage difference between the first power line and the second power line is greater than zero, the first input end of each of the plurality of sensing components is electrically coupled with the first power line, and the second input end of each of the plurality of sensing components is electrically coupled with the second power line.

2. The display panel of claim 1 , wherein the display region is provided with a plurality of data lines, the plurality of data lines are electrically coupled with the controller, and the controller is configured to:

when the display panel is in the partially-rolled state, control the flattened part to display an image by controlling, according to the first signal and the second signal, a data line in the flattened part to work.

3. The display panel of claim 1 , wherein the display panel is rollable along a first direction, the non-display region comprises a first non-display sub-region and a second non-display sub-region, the first non-display sub-region and the second non-display sub-region are located on two opposite sides of the display region respectively along a second direction, some sensing components are spaced apart in the first non-display sub-region along the first direction, and some sensing components are spaced apart in the second non-display sub-region along the first direction.

4. The display panel of claim 1 , wherein the display panel is rollable along a first direction, and the plurality of sensing components are spaced apart along the first direction.

5. The display panel of claim 1 , wherein the first resistor and the third resistor each are a force-sensitive resistor.

6. The display panel of claim 1 , wherein the display panel comprises an active layer, and the sensing components and the active layer are on a same layer.

7. The display panel of claim 1 , wherein each of the plurality of sensing components defines a through hole penetrating the sensing component.

8. A display device, comprising:

a display panel; and

a reel coupled with the display panel, wherein

the display panel is rollable and flattenable relative to the reel, and the display panel comprises a display region and a non-display region surrounding the display region, the non-display region is provided with a plurality of sensing components, wherein

the plurality of sensing components each are configured to generate a first signal when the display panel is in a flattened state;

when the display panel is in a partially-rolled state, the display panel comprises a flattened part and a rolled part, a sensing component in the flattened part is configured to generate the first signal, and a sensing component in the rolled part is configured to generate a second signal; and

the plurality of sensing components each are configured to generate the second signal when the display panel is in a fully-rolled state;

wherein the display panel further comprises a controller electrically coupled with each of the plurality of sensing components, and configured to control, according to the first signal and the second signal, the flattened part to display an image when the display panel is in the partially-rolled state; and

wherein each sensing component of the plurality sensing components comprises:

a first input end;

a first detection end coupled with the controller;

a second input end;

a second detection end coupled with the controller;

a first resistor coupled between the first input end and the first detection end;

a second resistor coupled between the first detection end and the second input end;

a third resistor coupled between the second input end and the second detection end; and

a fourth resistor coupled between the second detection end and the first input end, wherein

a voltage difference between the first input end and the second input end is greater than zero; and

when the display panel is in the partially-rolled state,

for a sensing component in the flattened part, resistance values of the first resistor, the second resistor, the third resistor, and the fourth resistor are equal, and the sensing component is configured to generate the first signal; and

for a sensing component in the rolled part, resistance values of the first resistor and the third resistor are different from resistance values of the second resistor and the fourth resistor, and the sensing component is configured to generate the second signal; and

wherein the display panel further comprises a first power line and a second power line, a voltage difference between the first power line and the second power line is greater than zero, the first input end of each of the plurality of sensing components is electrically coupled with the first power line, and the second input end of each of the plurality of sensing components is electrically coupled with the second power line.

9. The display device of claim 8 , wherein the display region is provided with a plurality of data lines, the plurality of data lines are electrically coupled with the controller, and the controller is configured to:

when the display panel is in the partially-rolled state, control the flattened part to display an image by controlling, according to the first signal and the second signal, a data line in the flattened part to work.

10. The display device of claim 8 , wherein the display panel is rollable along a first direction, the non-display region comprises a first non-display sub-region and a second non-display sub-region, the first non-display sub-region and the second non-display sub-region are located on two opposite sides of the display region respectively along a second direction, some sensing components are spaced apart in the first non-display sub-region along the first direction, and some sensing components are spaced apart in the second non-display sub-region along the first direction.

11. The display device of claim 8 , wherein the display panel is rollable along a first direction, and the plurality of sensing components are spaced apart along the first direction.

12. The display device of claim 8 , wherein the first resistor and the third resistor each are a force-sensitive resistor.

13. The display device of claim 8 , wherein the display panel comprises an active layer, and the sensing components and the active layer are on a same layer.

14. The display device of claim 8 , wherein each of the plurality of sensing components defines a through hole penetrating the sensing component.