A display device includes a display unit that displays an image, an illuminating unit that irradiates light to the display unit, a plurality of electrodes that are arranged on the display unit, an applying unit that applies an electric signal to the electrodes, a detecting unit that detects electrical changes of the electrodes occurring due to the electric signal, and a control unit that controls the display unit or the illuminating unit based on temperature information of the electrodes indicated by the electrical changes. Each of the electrodes includes a plurality of extension portions, and a coupling portion that couples one ends of the extension portions. A longitudinal direction of each of the extension portions is along the other direction perpendicular to the one direction. The control unit controls the display unit or the illuminating unit based on a temperature distribution of each of the electrodes in the other direction.

A driving circuit applied in a display system includes a node, a current control circuit, a protecting circuit and a timing controller, wherein the node is arranged to connect to a lighting element; the current control circuit is coupled to the node and arranged to selectively provide a current to the lighting element according to a Pulse Width Modulation (PWM) signal; the protecting circuit is coupled to the node and arranged to be selectively enabled to limit the voltage of the node according to a control signal to make the voltage of the node maintain a predetermined voltage, wherein the lighting element does not have any current passed through when the voltage of the node maintains the predetermined voltage; and the timing controller is arranged to generate the PWM signal and the control signal.

A display apparatus includes a display panel, a data driver, a driving controller and a power voltage generator. The display panel displays an image. The data driver outputs a data voltage to the display panel. The driving controller controls an operation of the data driver. The power voltage generator outputs a power voltage of the display panel. The data driver outputs a clock recovery signal representing whether a clock recovery operation is normal or abnormal to the driving controller. The driving controller generates an overcurrent signal representing an overcurrent based on the clock recovery signal and outputs the overcurrent signal to the power voltage generator.

A method of power control of a display system, the method including receiving dynamic metadata corresponding to input image data, determining a panel load level of the display system based on the dynamic metadata, and applying a first net power control (NPC) function to the display system during a first scene based on the panel load level.

A display device includes a display panel that displays an image, a drive circuit that outputs a drive signal to the display panel, a power supply line that is formed in the display panel to supply a power supply voltage to the drive circuit, and a ground line that is formed in the display panel to supply a ground potential to the drive circuit. At least parts of the power supply line and the ground line overlap each other in planar view with an insulator interposed therebetween.

A color display pixel P.sub.CD in a liquid crystal display device (100) includes first through fourth pixels P.sub.1 through P.sub.4 arrayed in two rows by two columns, and first and second signal lines (13a, 13b) which are located in correspondence with each column of pixels and are supplied with signal voltages of polarities opposite to each other from a signal line driving circuit (30) in each vertical scanning period. A TFT (14) of one of the first and third pixel P.sub.1 and P.sub.3 is connected to the first signal line (13a), and a TFT (14) of the other pixel is connected to the second signal line (13b). A TFT (14) of one of the second and fourth pixel P.sub.2 and P.sub.4 is connected to the first signal line (13a), and a TFT (14) of the other pixel is connected to the second signal line (13b). The TFTs (14) of the first through fourth pixels P.sub.1 through P.sub.4 are controlled to be ON/OFF by a common scanning signal, and the polarities of the signal voltages supplied to the first and second signal lines (13a, 13b) are constant during an arbitrary vertical scanning period. Owing to this, the load on the signal line driving circuit is reduced.

An EL display apparatus includes: gate driver ICs (i. e., gate driver circuits); a plurality of pixels; gate signal lines each transmit a selection voltage for selecting a pixel from the pixels and non-selection voltage for placing a pixel in a non-selection state; and TCON. The pixels each include: a driving transistor; an EL element; a first switching transistor; and a second switching transistor. The gate driver ICs each include scanning and outputting buffer circuits which are connected to TCON to which an output signal of each of the scanning and outputting buffer circuits is inputted.

A display apparatus including a classifier configured to classify image data into preset data of an n-bits (“n” is a natural number), a toggle counter configured to count a number of toggles based on preset data of a present horizontal line and a previous horizontal line and to calculate a final toggle number using a weighted values corresponding to a swing width between data voltages of the present and previous horizontal lines, a determiner configured to determine a representative toggle number of a present frame based on a plurality of final toggle numbers of the present frame, compare the representative toggle number with a plurality of threshold values and determine a level of a power control signal based on a compared result.

A display having fused light-emitting diodes (LEDs) includes a display substrate and an array of pixel components disposed on the display substrate. Each pixel component comprises a light-emitting diode and an electrical fuse electrically connected in series with the light-emitting diode. The micro-transfer printable pixel components include an LED having first and second LED electrical contacts for providing power to the LED to cause the LED to emit light, a fuse having first and second fuse electrical contacts, the first fuse electrical contact electrically connected in series with the first LED electrical contact, a first electrode connected to the second fuse electrical contact, and a second electrode connected to the second LED electrical contact.

Provided is a display device. According to one embodiment, the display device includes: a backlight unit with a plurality of light emitting strings including at least one light emitting diode; and a display panel displaying an image using light outputted from the backlight unit, wherein the backlight unit includes: a light source unit including the plurality of light emitting strings and a plurality of photo transistors controlling the plurality of light emitting strings; a DC-DC converter outputting the driving voltage to the light source unit; and a driving control unit applying activated gate voltages to turn on the plurality of photo transistors and detecting driving time differences between an output time for outputting the driving voltage and applying times for applying the gate voltages.