A display apparatus according to the present disclosure can include a display panel; a back frame configured to attach to a wall structure by a fixing element; a height adjustment element joined to the back frame, including a permanent magnet and adjusting a height; a position adjustment element fixed to a rear surface of the display panel, including a magnetic material mounted by a magnetic force of the height adjustment element, and adjusting a position on a plane defined by the height adjustment element; a position limiter engaged between the position adjustment element and the height adjustment element; a sound generating device disposed at a rear surface of the display panel and having a latch holder; a middle frame disposed between the height adjustment element and the position adjustment element, and including a space receiving the sound generating device; and a latch disposed to engage with the latch holder.

The present disclosure relates to a flexible vibration film and a display apparatus having the same. A flexible vibration film includes: a vibration layer; a first electrode layer disposed on a bottom surface of the vibration layer; and a second electrode layer disposed on a top surface of the vibration layer, wherein the vibration layer includes: a first vibration unit having a first vibration characteristics; a second vibration unit having a second vibration characteristics; and a flexible insulating part disposed between the first vibration unit and the second vibration unit, and wherein the first electrode layer includes: a first part corresponding to the first vibration unit; and a second part corresponding to the second vibration unit.

A display apparatus may include a rear cover at a rear surface of a display module and a vibration generating module at a rear region of the rear cover. The vibration generating module may be configured to output sound in a forward direction and a lateral direction of the display module.

A display apparatus includes a display unit including a display panel configured to display an image, a curvature variation unit disposed on a rear surface of the display unit and varying a curvature of the display unit, and a vibration unit disposed on the rear surface of the display unit configured to vibrate the display panel.

A display device includes a display panel including a display layer including light-emitting elements disposed on a substrate, and a sensor electrode layer disposed on the display layer. The sensor electrode layer includes a first sound electrode and a second sound electrode; a vibration layer electrically contacting the first sound electrode and the second sound electrode and being deformed in response to a first sound driving voltage applied to the first sound electrode and a second sound driving voltage applied to the second sound electrode; and sensor electrodes disposed on the vibration layer. The sensor electrodes sense an input.

A display device includes a display panel including a display layer including light-emitting elements disposed on a substrate, and a sensor electrode layer disposed on the display layer. The sensor electrode layer includes a first sound electrode and a second sound electrode; a vibration layer electrically contacting the first sound electrode and the second sound electrode and being deformed in response to a first sound driving voltage applied to the first sound electrode and a second sound driving voltage applied to the second sound electrode; and sensor electrodes disposed on the vibration layer. The sensor electrodes sense an input.

A display apparatus according to the present disclosure can include a display panel; a back frame configured to attach to a wall structure by a fixing element; a height adjustment element joined to the back frame, including a permanent magnet and adjusting a height; a position adjustment element fixed to a rear surface of the display panel, including a magnetic material mounted by a magnetic force of the height adjustment element, and adjusting a position on a plane defined by the height adjustment element; a position limiter engaged between the position adjustment element and the height adjustment element; a sound generating device disposed at a rear surface of the display panel and having a latch holder; a middle frame disposed between the height adjustment element and the position adjustment element, and including a space receiving the sound generating device; and a latch disposed to engage with the latch holder.

A loudspeaker system composed of a flexible panel with an affixed array of force actuators, a signal processing system, and interface electronic circuits is described. The system described is capable of creating a pattern of standing bending waves at any location on the panel and the instantaneous amplitude, velocity, or acceleration of the standing waves can be controlled by an audio signal to create localized acoustic sources at the selected locations in the plane of the panel.

Disclosed is an electronic device, comprising a first exciter, a second exciter, and a first panel and a second panel that are provided oppositely. The first exciter is configured to control the first panel to vibrate, such that the first panel radiates a first sound wave. The second exciter is configured to control the second panel to vibrate, such that the second panel radiates a second sound wave. The electronic device of the present invention is provided with the two exciters to control each of the two panels to vibrate and radiate sound waves, such that both the first panel and the second panel can serve as a sound source. Controlling a vibration pattern of the second panel also enables control over a sound field of the first sound wave radiated by the first panel.

The invention relates to an electromagnetic actuator, which is designed to be connected to a backside of a plate like structure and which comprises an annular coil arrangement and a magnet system being designed to generate a magnetic field transverse to the annular coil arrangement. The annular coil arrangement and the magnet system are connected to each other by a plurality of springs, which are arranged inside of the annular coil arrangement. Furthermore, the invention relates to an output device, comprising a plate like structure and an electromagnetic actuator of the above kind connected to a backside of the plate like structure.