Display panel and control method thereof, and display device

A driving method of a display panel, wherein the display panel comprises:

• a screen driving module;
• a display unit comprising a liquid crystal layer, a main display region and a function additional region, wherein the liquid crystal layer comprises a first liquid crystal layer disposed in the main display region and a second liquid crystal layer disposed in the function additional region;
• and
• a backlight module comprising a first light source block providing a light source for the main display region and a second light source block providing a light source for the function additional region, wherein the first light source block and the second light source block are independently driven and controlled;
• wherein the driving method comprises following steps of:
• S10, controlling the first light source block to turn on when a backlight driving module receives a first control signal;
• and
• S20, controlling the second light source block to turn on when the backlight driving module receives a second control signal;
• wherein when the backlight driving module controls the second light source block to be turned off, the screen driving module controls liquid crystals in the second liquid crystal layer to rotate to a transparent state, and when the backlight driving module controls the second light source block to be turned on, the screen driving module controls the liquid crystals in the second liquid crystal layer to rotate to a scattering state.

A display device, comprising:

• an electronic component and a display panel, wherein the display panel comprises:
• a display unit comprising a main display region and a function additional region, wherein at least a part of the function additional region is surrounded by the main display region;
• and
• a backlight module comprising a first light source block providing a light source for the main display region and a second light source block providing a light source for the function additional region, wherein the first light source block and the second light source block are independently driven and controlled;
• wherein the electronic component is disposed corresponding to the function additional region of the display panel;
• wherein when the electronic component is not operating and the second light source block is turned on, the function additional region displays a picture, and when the electronic component is operating and the second light source block is turned off, the function additional region does not display the picture.