Display device and control method thereof

1. A display device, comprising:

a display panel comprising a first display area and a second display area, wherein the second display area comprises a plurality of staggered light-emitting areas and light-transmitting areas;

at least one sensor located in the second display area and configured to operate according to ambient light sensed through the second display area;

a dimming film arranged between the display panel and the at least one sensor, an orthographic projection of the dimming film on the display panel covering at least the second display area, wherein the dimming film has different transmittances under different electric field intensities;

a first drive circuit configured to provide first data signals to pixel units in the first display area of the display panel of the display device;

a second drive circuit configured to provide second data signals to pixel units in the second display area of the display panel, the second data signals having higher intensity than the first data signals so that the overall display brightness of the display panel is uniform;

a first adjustment circuit configured to adjust the electric field intensity applied on the dimming film to make the dimming film opaque in response to the display panel being in a non-working state;

a second adjustment circuit configured to adjust the electric field intensity applied on the dimming film to make the dimming film transparent in response to the display panel being in a working state.

2. The display device according to claim 1 , wherein

the second display area comprises a plurality of staggered first pixel units and transparent pixel units, each of the first pixel units comprising a light-emitting area, and each of the transparent pixel units comprising a light-transmitting area.

3. The display device according to claim 1 , wherein

the second display area comprises a plurality of second pixel units, each of the second pixel units comprising at least one light-emitting area and at least one light-transmitting area.

4. The display device according to claim 3 , wherein

the light-emitting areas and the light-transmitting areas of each second pixel unit are arranged alternately in turn along one of a first direction and a second direction, and there is an angle between the first direction and the second direction.

5. The display device according to claim 4 , wherein

the plurality of second pixel units are arranged along the first direction, and the light-emitting areas and light-transmitting areas of any two adjacent second pixel units are arranged alternately along the first direction.

6. The display device according to claim 1 , further comprising a determining circuit and a third adjustment circuit, and the at least one sensor comprises a light intensity sensor, wherein

the second adjustment circuit is further configured to adjust the transmittance of the dimming film to be its upper limit in response to one of the following: the display panel being switched from the non-working state to the working state; and the display panel being in the working state and detection that a change of actual light intensity of ambient light is greater than a preset light intensity threshold;

the determining circuit is configured to determine the actual light intensity of the ambient light according to the light intensity of ambient light detected by the light intensity sensor and the upper limit of the transmittance;

the third adjustment circuit is configured to adjust a brightness of the display panel according to the actual light intensity.

7. The display device according to claim 6 , wherein

the second adjustment circuit is further configured to adjust the transmittance of the dimming film to be a specified transmittance according to the actual light intensity of the ambient light;

wherein the specified transmittance is smaller than the upper limit of the transmittance, and a product of the actual light intensity and the specified transmittance is not less than a light intensity sensing lower limit of the at least one sensor in the display device.

8. The display device according to claim 1 , wherein the at least one sensor further comprises: a camera; and wherein

the second adjustment circuit is further configured to control the transmittance of the dimming film to remain at its upper limit in response to detection of activation of the camera, so that the camera can effectively sense the ambient light.

9. A control method of a display device for controlling the display device of claim 1 , comprising:

providing first data signals to pixel units in the first display area of the display panel of the display device;

providing second data signals to pixel units in the second display area of the display panel, the second data signals having higher intensity than the first data signals;

adjusting the electric field intensity applied on the dimming film to make the dimming film opaque in response to the display panel being in a non-working state;

adjusting the electric field intensity applied on the dimming film to make the dimming film transparent in response to the display panel being in a working state.

10. The method according to claim 9 , wherein said adjusting the electric field intensity applied on the dimming film to make the dimming film transparent in response to the display panel being in a working state comprises:

adjusting the transmittance of the dimming film to be its upper limit in response to one of the following: the display panel being switched from the non-working state to the working state; and the display panel being in the working state and detection that a change of actual light intensity of ambient light is greater than a preset light intensity threshold;

and the method further comprises:

determining the actual light intensity of the ambient light according to the light intensity of ambient light detected by a light intensity sensor and the upper limit of the transmittance;

adjusting a brightness of the display panel according to the actual light intensity.

11. The method according to claim 10 , wherein after determining the actual light intensity of the ambient light, the method further comprises:

adjusting the transmittance of the dimming film to be a specified transmittance according to the actual light intensity of the ambient light;

wherein the specified transmittance is smaller than the upper limit of the transmittance, and a product of the actual light intensity and the specified transmittance is not less than a light intensity sensing lower limit of the at least one sensor in the display device.

12. The method according to claim 9 , wherein the display device further comprises a camera; and

the method further comprises: in response to detection of activation of the camera,

controlling the transmittance of the dimming film to remain at its upper limit.

13. A computer-readable storage medium storing computer-executable instructions thereon, the computer-executable instructions, when being executed on a processor, enabling the processor to implement the control method of the display device according to claim 9 .

14. A computing device, comprising a processor and a memory, the memory being configured to store computer-executable instructions that are configured to enable the processor to implement the control method of the display device according to claim 9 when being executed on the processor.

15. The display device according to claim 4 , wherein

the plurality of second pixel units are arranged along the second direction, and the light-emitting areas and light-transmitting areas of any two adjacent second pixel units are arranged alternately along the second direction.

16. The method according to claim 9 , wherein the display device further comprises a camera; and

the method further comprises: in response to detection of activation of the camera, controlling the transmittance of the dimming film to remain at its upper limit and stopping providing data signals to the pixel units in the second display area.