Abstract: A touch feedback circuit and driving method thereof, and a touch display device are disclosed, so that the user's finger can feel feedback from a touch display, thereby improving the user experience. The touch feedback circuit comprises a deformation element, at least one control module, a control line, a first signal line and a first voltage terminal, wherein the control module is configured to output a signal provided by the first signal line to the deformation element under the control of the control line, the deformation element is configured to deform under the control of the control module and the first voltage terminal, the control line and the first signal line are used to control the deformation element corresponding to a determined touch position.

Abstract: The present disclosure provides a power management integrated circuit (PMIC) and a display device. The PMIC includes an FBN and a DC voltage output unit configured to output different DC voltages to the FBN in a time-division manner.

Abstract: The present disclosure provides a buffer structure and a display device. The buffer structure includes a deformable sealed capsule, and a flowable filler in a hollow part of the sealed capsule. For the buffer structure according to the present disclosure, the hollow part of the deformable sealed capsule is provided with the flowable filler, when the display device suffers uneven internal forces resulting from deformation of the liquid crystal panel or the backboard, the flowable filler in the hollow part of the buffer structure flows to a position suffering a smaller force from a position suffering a larger force until achieving the force balance, thereby to reduce difference of forces at different positions in the display device and further improve light leakage phenomenon caused by uneven forces.