The present disclosure provides a driving backplane, including: a base substrate, a driving circuit arranged on the base substrate, an insulation layer on a side of the driving circuit facing away from the base substrate, a plurality of first tip structures arranged on a side of the insulation layer facing away from the base substrate, and a plurality of contact electrodes arranged on the side of the insulation layer facing away from the base substrate. The driving circuit includes a plurality of output terminals, the insulation layer includes a plurality of openings and the output terminals and the openings are in a one-to-one correspondence. The contact electrodes are electrically connected with the output terminals through the openings. Each of the contact electrodes covers the plurality of first tip structures to constitute a plurality of second tip structures having the same appearance as the first tip structures.

A display device may include a display panel including a display area, a non-display area which may be disposed on a periphery of the display area, and a pad area which may be disposed on one side of the non-display area. The display panel may include data lines disposed in the display area of the display panel along a second direction which intersects a first direction, and connection lines disposed in the display area of the display panel along the first direction. A first data line among the data lines may be connected to a first connection line among the connection lines.

A light-emitting device includes a first electrode, a second electrode facing the first electrode, a light-emitting layer provided between the first electrode the second electrode and including a phosphor, a layered body including a metal layer, a first insulating layer provided on a second electrode side of the metal layer, and a second insulating layer provided on a light-emitting layer side of the metal layer, and having a thickness that allows electron injection from the second electrode to the light-emitting layer, a first power supply configured to apply a voltage between the first electrode and the second electrode, and a second power supply configured to apply, between the metal layer and the second electrode, a voltage of which polarity of the second polarity is opposite to a polarity of the second electrode of a voltage applied by the first power supply between the first electrode and the second electrode.

A power supply unit adapts based on an image to be displayed by a display panel. The power supply unit includes a controller circuit for generating a power control signal, and a power supply circuit for generating one or more power supply voltages having a waveform based the power control signal. The controller circuit receives a set of configuration parameters from a display device and generates the power control signal based on the set of configuration parameters. The configuration parameters are stored in a look-up table of the display device.

An image update determining unit compares a previously set temperature with a temperature estimated by a temperature increase estimating unit, and determines whether or not an image update operation is executable, and an image update interval is appropriately set according to the estimated temperature by performing image update on an image to be displayed next when the image update determining unit determines the image update operation to be executable but not performing image update when the image update determining unit determines the image update operation to be non-executable.

A display device includes a substrate including a pixel area and a transmission area, and a pixel circuit disposed in the pixel area. The pixel circuit includes a first thin-film transistor included in a first multi-layer film, and a second thin-film transistor included in a second multi-layer film on the first multi-layer film. The first thin-film transistor and the second thin-film transistor are electrically connected to each other. The display device also includes a display element disposed on the second multi-layer film and including a pixel electrode electrically connected to the second thin-film transistor via a contact hole defined in the second multi-layer film, an opposite electrode facing the pixel electrode, and an intermediate layer between the pixel electrode and the opposite electrode.

There is disclosed a display driving device configured to drive a display device for displaying an image, including a source driver integrated circuit (IC) configured to convert image data into a source signal, and an energy harvesting device configured to convert thermal energy into electrical energy and supply the electrical energy to the source driver IC, wherein the energy harvesting device includes a thermal energy converter configured to convert thermal energy generated in the source driver IC to output an energy harvesting current, and an energy storage directly connected to the thermal energy converter, and configured to receive the energy harvesting current, store power, and output a first auxiliary voltage that is a voltage generated due to the stored power, wherein the thermal energy converter and the energy storage are located on the source driver IC.

A display device may include a display panel including a display area, a non-display area which may be disposed on a periphery of the display area, and a pad area which may be disposed on one side of the non-display area. The display panel may include data lines disposed in the display area of the display panel along a second direction which intersects a first direction, and connection lines disposed in the display area of the display panel along the first direction. A first data line among the data lines may be connected to a first connection line among the connection lines.

A display driver comprises: digital gamma circuitry configured to generate a voltage data based on an image data for a pixel of interest; compensating circuitry configured to calculate a total current of the display panel; and correction circuitry. The correction circuitry is configured to correct the voltage data, based on the calculated total current.

According to one embodiment, a communication device includes: a voltage detector configured to detect a voltage from a first signal line to which the communication device and a master device are connected; and a controller configured to output, in case of detecting a read-out command from a second signal line to which the communication device and the master device are connected, a first signal with a time length corresponding to a value of the voltage to a third signal line to which the communication device and the master device are connected, and output, in case that a first signal is not detected on the third signal line from another communication device different from the master device after output of the first signal ends, a second signal including information corresponding to the read-out command to the second signal line.