The present invention overcomes image defects such as the brightness inclination or smears by reducing the line resistance of a power source bus line which supplies electricity to organic EL elements. A plurality of pixels which are arranged in a matrix array is connected to power source lines, and the plurality of power source lines are connected to a power source bus line. Both ends of the power source bus line are connected to a power source part via a FPC. By supplying electricity to both ends of the power source bus line from the power source part, the line resistance of the power source bus line can be reduced.

A display device includes a display, an illuminance sensor, an IR sensor disposed at a lower side of the display device, a memory to store correction data set by respective reflectance, and a processor. The processor is configured to calculate a reflectance of a floor surface, in an environment in which the display device is arranged, based on a sensing value of the IR sensor, obtain correction data corresponding to the calculated reflectance from stored correction data of the memory, correct an illuminance value sensed by using the illuminance sensor according to the obtained correction data, and control an operation of the display based on the corrected illuminance value.

A display panel includes a pixel circuit that includes a light emitting module, a driving module, a first dual control module, and a second dual control module. A control end of the driving module is connected to a first node. The first dual control module has a control end connected to a first scanning line and has a first end connected to the first node. A first capacitor is formed between an intermediate node of the first dual control module and a first potential line. The second dual control module has a first end connected to the first node and has a second end connected to the driving module. A second capacitor is formed between an intermediate node of the second dual control module and a second potential line. Capacitance of one of the first capacitor and the second capacitor is greater than another.

Technologies for power efficient display synchronization are disclosed. A compute device may be connected to two display devices. The compute device may send image data to be displayed on each of the display devices in a burst mode, sending the image data in less time than the time between frames. The compute device may then enter a low-power state prior to sending the next image to the display devices. Before sending the next image to the display devices, the compute device may send a synchronization signal, which the display devices may use to synchronize the timing of displaying images between the two display devices.

The power consumption of a display device is reduced. The power consumption of a driver circuit in a display device is reduced. A pixel included in the display device includes a display element. The pixel is configured to have a function of retaining a first voltage corresponding to a first input pulse signal and a function of driving the display element with a third voltage obtained by addition of a second voltage corresponding to a second input pulse signal to the first voltage.

Disclosed is a system for transmitting/receiving wireless power, the system includes a wireless power transmitter including an inverter that generates a first current using an input power source, a first resonant circuit to which the first current is applied to transmit a power signal, and a first controller that controls the inverter, and a wireless power receiver including a second resonant circuit that receives the power signal, an impedance varying unit that varies an impedance of the second resonant circuit, and a second controller that controls the impedance varying unit, wherein the first controller controls the inverter to spread a frequency spectrum of the power signal, and the second controller controls the impedance varying unit such that the second resonant circuit resonates with the power signal generated from the first resonant circuit of the wireless power transmitter. Additional various embodiments recognized through the specification are possible.

The power consumption of a display device is reduced. The power consumption of a driver circuit in a display device is reduced. A pixel included in the display device includes a display element. The pixel is configured to have a function of retaining a first voltage corresponding to a first input pulse signal and a function of driving the display element with a third voltage obtained by addition of a second voltage corresponding to a second input pulse signal to the first voltage.

A Light-Emitting Diode (LED) apparatus has a power source outputting a source DC power at a source DC voltage, a plurality of LEDs drivable at a driving DC voltage lower than the source DC voltage, and an electrical path connecting the power source to each LED for powering the LED by the power source. Each electrical path comprises a first portion connected to the power source at the source DC voltage and a second portion connected to the LED at the driving DC voltage, and the length of the first portion is longer than that of the second portion.

An electronic device includes a substrate, an array circuit, a first distribution terminal, a second distribution terminal, a first power input terminal, a first wire and a second wire. The first distribution terminal and the second distribution terminal are disposed on a side surface of the substrate and are electrically connected to the array circuit. The first power input terminal, the first wire and the second wire are disposed on a bottom surface of the substrate. A first end of the first power input terminal is electrically connected to the first distribution terminals through the first wire. A second end of the first power input terminal opposite to the first end is electrically connected to the second distribution terminals through the second wire. A minimum distance between the first end and the first distribution terminal is less than a minimum distance between the second end and the first distribution terminal.

A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a first driving element including a first electrode connected to a 1-1 th node, a gate electrode connected to a 1-2 th node, and a second electrode connected to a 1-3 th node; and a second driving element including a first electrode connected to a 2-1 th node, a gate electrode connected to a 2-2 th node, and a second electrode connected to a second-third node. A second electrode voltage of the first driving element is transmitted to the gate electrode of the second driving element, and a second electrode voltage of the second driving element is transmitted to the gate electrode of the first driving element.