The composite display apparatus includes multiple display devices each including a power supply having predetermined supply power and a power supply connection unit that connects the power supplies of the respective display devices to each other in parallel. The composite display apparatus is configured in such a manner that, in a case where at least one display device among the multiple display devices requires electric power exceeding the predetermined supply power of the power supply of the display device, electric power is supplied to the display device from the power supply of the other display device or devices. The present technology can be applied, for example, to a multi-display apparatus and so forth.

The composite display apparatus includes multiple display devices each including a power supply having predetermined supply power and a power supply connection unit that connects the power supplies of the respective display devices to each other in parallel. The composite display apparatus is configured in such a manner that, in a case where at least one display device among the multiple display devices requires electric power exceeding the predetermined supply power of the power supply of the display device, electric power is supplied to the display device from the power supply of the other display device or devices. The present technology can be applied, for example, to a multi-display apparatus and so forth.

Disclosed are a display apparatus and an electronic apparatus, the display apparatus including: a main body including a display and a connector; and an adapter connectable to the main body and configured to supply power to the connected main body, the adapter including: a transformer configured to boost an input first alternating current (AC) voltage, a switch including a switching device configured to switch a current flowing in the transformer, a controller configured to control the switching device to output a second AC voltage boosted by the transformer, and the main body including a power factor correction (PFC) converter configured to correct a power factor of the second AC voltage output from the adapter and output a direct current (DC) voltage.

Disclosed are a display apparatus and an electronic apparatus, the display apparatus including: a main body including a display and a connector; and an adapter connectable to the main body and configured to supply power to the connected main body, the adapter including: a transformer configured to boost an input first alternating current (AC) voltage, a switch including a switching device configured to switch a current flowing in the transformer, a controller configured to control the switching device to output a second AC voltage boosted by the transformer, and the main body including a power factor correction (PFC) converter configured to correct a power factor of the second AC voltage output from the adapter and output a direct current (DC) voltage.

A display device is disclosed. The display device may comprise a display panel; a frame disposed behind the display panel and coupled to the display panel; a stand configured to support the frame at a lower part of the display panel; a bottom accommodation portion fixed to a lower part of the stand, the bottom accommodation portion having an inner space that is opened rearward; and a box slidably inserted into the inner space, the box having an accommodation space provided inside the box.

An infinite rotation joint that allows members of a suspension arm assembly at the infinite rotation joint to have unlimited rotation relative to one another. The infinite rotation joint is configured to pass at least an optical signal therethrough. At least two portions of the infinite rotation joint are separable and can automatically form a unit when adjacent arms are connected together such that the infinite rotation joint can be separated into the at least two portions. The at least two portions are configured to be automatically connected to allow the optical signal to pass therethrough once the at least two portions are engaged.

An electronic device includes a power receiving unit that receives power from an external device, a first voltage conversion unit that generates a first output voltage regardless of a variation of the input voltage, a second voltage conversion unit in which a second output voltage varies due to a variation of the input voltage, a voltage supply unit that steps up or down the first output voltage or the second output voltage and supplies the output voltage to a load circuit of the electronic device, and a control unit that performs control so as to supply power to the load circuit of the electronic device by switching to the first voltage conversion unit or the second voltage conversion unit based on a voltage supplied to the load circuit of the electronic device.

Disclosed is a display device. The display device of the present disclosure comprises: a carrier having a built-in battery and a display panel driven by receiving power from the batter, wherein the carrier has a power reception unit for charging the battery and a sensing unit for sensing the remaining battery amount; a cradle which approaches or moves away from the carrier, wherein the cradle has a power transmission unit for providing power to the power reception unit; and a control unit for controlling the distance between the carrier and the cradle and whether the power transmission unit operates, on the basis of the information about the remaining battery amount obtained from the sensing unit.

A display device is disclosed. The display device may comprise: a power supply configured to generate power; an external input port, which can be connected to at least one external device; a display; and a processor configured to: acquire brightness information about the display, identify first power information required by the display based on the acquired brightness information, and adjust, based on the identified first power information and second power information provided from the power supply, power supplied to the external input port.

A modification kit for converting an existing signage mounting structure to an electronic sign generally includes at least one sectional sign assembly including a frame section having a back-facing portion configured to be coupled to the existing signage mounting structure and a front-facing portion including an array of bays, each individual bay having removably mounted therein an LED display module and being prewired with a power routing system; wherein the power routing system includes an input end that branches out to a plurality of output ends, each disposed in one of the bays and each configured to directly couple to one of the LED display modules; a power kit configured to couple the input end of each power routing system to an AC power source; and an installation kit configured to facilitate mounting said back-facing portion to the existing signage mounting structure.