A display device includes a display unit which displays an image, a roller to which an end of the display unit is fixed and which winds or unwinds the display unit by rotating, a housing which accommodates the display unit and the roller, and a guide member which is provided inside the housing and guides a movement of the display unit.

The present embodiments relates to a display panel configured to display images, a plurality of sound generating actuators in a plurality of sound output areas, the sound generating actuators configured to vibrate the display panel to generate sound, and a partition that is between each of the plurality of sound output areas and surrounds at least one of the plurality of sound output areas.

The invention relates to the technical field of television, and more particularly, to a data storage framework and a television device. The television device comprises a main screen and a plurality of sub-screens. The data storage framework comprises: a processor; a basic database, and a differential database, wherein the basic database is configured to store configuration data items of the main screen; the differential database is configured to store configuration data items of the plurality of sub-screens different from those of the main screen; wherein the processor is connected to the basic database and the differential database, respectively; and during display configuration of the plurality of sub-screens, the processor combines the basic database and the differential database to form a synthetic database, and outputs the synthetic database to the plurality of sub-screens. Thus, the storage data are optimized; the storage space is saved; and lower cost is realized.

The invention relates to the technical field of television, and more particularly, to a data storage framework and a television device. The television device comprises a main screen and a plurality of sub-screens. The data storage framework comprises: a processor; a basic database, and a differential database, wherein the basic database is configured to store configuration data items of the main screen; the differential database is configured to store configuration data items of the plurality of sub-screens different from those of the main screen; wherein the processor is connected to the basic database and the differential database, respectively; and during display configuration of the plurality of sub-screens, the processor combines the basic database and the differential database to form a synthetic database, and outputs the synthetic database to the plurality of sub-screens. Thus, the storage data are optimized; the storage space is saved; and lower cost is realized.

A display apparatus includes a display panel including a display area configured to display an image, and a non-display area, at least one first sound generator in the display area, and at least one second sound generator in the non-display area, wherein each of the at least one first sound generator and the at least one second sound generator is configured to vibrate the display panel to generate sound toward a front of the display panel.

An image display device includes: an image forming device; an optical device having a virtual image forming region where a virtual image is formed on the basis of light emitted from the image forming device; and a dimming device for adjusting the amount of external light incident from the outside, disposed so as to face the virtual image forming region and to be away from the optical device. The dimming device includes: a transparent protective substrate on which external light is incident; a dimming layer formed on a surface of the protective substrate facing the optical device; and a moisture-retaining layer formed on the dimming layer.

An image display device includes: an image forming device; an optical device having a virtual image forming region where a virtual image is formed on the basis of light emitted from the image forming device; and a dimming device for adjusting the amount of external light incident from the outside, disposed so as to face the virtual image forming region and to be away from the optical device. The dimming device includes: a transparent protective substrate on which external light is incident; a dimming layer formed on a surface of the protective substrate facing the optical device; and a moisture-retaining layer formed on the dimming layer.

Disclosed are a signal transmission device and a smart TV including a wireless signal module. The signal transmission device includes: a main antenna having a first signal input port, the first signal input port being connected with the wireless signal module; a transmission antenna adjacent to and spaced from the main antenna, the transmission antenna having a signal output port; and a dead-zone compensating antenna having a second signal input port. The second signal input port is connected with the signal output port through a signal transmission line, and the main antenna receives signals input by the wireless signal module and transmits the signals, the transmission antenna receives a part of the signals and transmits the part of the signals to a dead-zone compensating antenna through the signal transmission line; the dead-zone compensating antenna transmits the received signals and compensates a signal dead zone of the main antenna.

Disclosed are a signal transmission device and a smart TV including a wireless signal module. The signal transmission device includes: a main antenna having a first signal input port, the first signal input port being connected with the wireless signal module; a transmission antenna adjacent to and spaced from the main antenna, the transmission antenna having a signal output port; and a dead-zone compensating antenna having a second signal input port. The second signal input port is connected with the signal output port through a signal transmission line, and the main antenna receives signals input by the wireless signal module and transmits the signals, the transmission antenna receives a part of the signals and transmits the part of the signals to a dead-zone compensating antenna through the signal transmission line; the dead-zone compensating antenna transmits the received signals and compensates a signal dead zone of the main antenna.

An electronic device and an audio system comprising the electronic device are disclosed. The electronic device comprises: a microphone; a communicator performing communication with an external electronic device, and a processor configured to, based on receiving, via the microphone, an audio signal generated in a surroundings of the microphone and an audio signal of an inaudible frequency band which the external electronic device outputs through a speaker connected to the external electronic device, remove audio signals of remaining frequency bands except for the inaudible frequency band from the received audio signals and control the communicator to transmit an audio signal of the inaudible frequency band to the external electronic device.