Abstract:
A display apparatus is provided. The display apparatus includes a display panel which displays an image; a light-emitting diode (LED) module which provides backlight to the display panel; an LED driving unit which applies a driving voltage to the LED module; and an LED driving control unit which senses the driving voltage from the LED module and stops an operation of the LED driving unit if the sensed driving voltage is lower than a first reference voltage or higher than a second reference voltage.
Abstract:
A power supply device and a display system including the same are provided. A power supply device according to the disclosure is disposed so as to be spaced apart from a display device and supplies power to the display device, and includes a first power supplier which supplies power to the display device through a cable in a wired manner, a second power supplier which supplies power to the display device in a wireless manner, a detector for detecting whether the power supply device is connected to the display device through the cable, and a processor configured to control the second power supplier in a state in which the display device and the power supply device are disconnected, such that power is supplied in the wireless manner, and control the first power supplier based on detecting connection between the display device and the power supply device, such that power is supplied in the wired manner.
Abstract:
Provided is a display device. The display device includes a display to display an image, a processor to control the display to display a predetermined image, a power supplier to generate a direct current (DC) power by receiving an alternating current (AC) power, and supply the generated DC power to each of the display and the processor, and a sensor to output a sensing signal corresponding to whether the AC power is input, and the display stops an image display operation according to the sensing signal.
Abstract:
A convertible stand of a display apparatus is provided. In more detail, the convertible stand of the display apparatus supports a display body in a first state or a second state, the first state being a standing state and the second state being a wall-mounted state. In addition, the convertible stand of the display apparatus is coupled to a rear cover of a display body and supports the display body in the first state and the second state.
Abstract:
A display device is provided, which includes a display main body, a support configured to support the display main body, and the support being made of a transparent material, and a stand coupled to a lower portion of the support, wherein the display main body is configured to receive a power supply through the stand and the support.
Abstract:
A display device is provided, which includes a light emitter including an LED array; a current detector configured to detect current that flows through the LED array; a driving circuit configured to provide constant current to the LED array; and a cable including a first line configured to provide the constant current that is provided from the driving circuit to the light emitter, and a second line configured to connect a node, to which the current detector and the driving circuit are commonly connected, and the driving circuit to each other.
Abstract:
A power supplying system and a power module are provided. The power supplying system includes a power supplying apparatus configured to supply power to a display apparatus, and process an image signal received from outside and transmit the processed image signal to the display apparatus, and a power module configured to supply power to an external apparatus, wherein the power module is configured to be docked with the power supplying apparatus.
Abstract:
Disclosed is a display apparatus comprising: a signal receiver configured to receive an image signal; a signal processor configured to process the received image signal; a display comprising a display panel which displays an image based on the processed image signal, and a plurality of light emitting diode (LED) groups each of which comprises a plurality of LEDs connected in series and the LED groups being connected in parallel with each other to emit light for an image to be displayed on the panel in accordance with a driving current; a plurality of switches respectively provided in the LED groups and selectively cutting off flow of a driving current in each LED group; a voltage adjuster configured to apply a driving voltage to the plurality of LED groups; and a controller configured to control the plurality of switches so that the driving current can flow in the LED group to be driven among the plurality of LED groups, and to control the voltage adjuster so that the applied driving voltage can have a preset level based on the number of LED groups to be driven and a level of a total driving current flowing in the plurality of LED groups and sensed by a current sensor.Thus, local dimming of the display apparatus is controlled by one controller; thereby a display apparatus of which circuit is simplified and material costs has been decreased compared to the case where a plurality of controller control local dimming is provided.
Abstract:
A display device is provided, which includes a panel configured to display an image using an LED backlight configured to emit light incident on the panel, an image signal interface configured to provide an image signal to the panel, and a power supply including an LED driver configured to generate constant current, wherein the LED driver is detachable from the power supply.
Abstract:
A light emitting diode controlling circuit includes a first integrator configured to integrate a voltage value across a resistor of a light emitting diode driving circuit, a second integrator configured to integrate a predetermined reference current value, a comparator configured to compare a first integral value output from the first integrator and a second integral value output from the second integrator, and a controller configured to control a switch according to result of comparing the first integral value and the second integral value.