A control device including a USB port of a first interface capable of transmitting an image signal serving as a basis of an image to be displayed by the control device and capable of receiving power, and a port of a second interface capable of receiving power, is provided. The control device is accommodated in a housing, the USB port is disposed at a bottom surface which, given a surface of the housing where the touch panel is disposed as a front surface, is a side surface positioned in a longitudinal direction of the front surface, and the port is disposed at a rear surface opposite the front surface.

According to one embodiment, a display device includes a display region where pixels are arranged. Each of the pixels includes a pixel electrode, a light emitting element, a drive transistor, a first capacitance electrode layer opposed to the pixel electrode and held at a constant potential, and an insulating layer forming an auxiliary capacitance together with the pixel electrode and the first capacitance electrode layer. A value of the auxiliary capacitance of the first pixel, of the values of the auxiliary capacitance of the pixels is the largest.

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 pixels electrically connected to first scan lines, second scan lines, and emission lines, a first scan driver that applies first scan signals to the first scan lines, a second scan driver that applies second scan signals to the second scan lines, an emission control driver that applies emission signals to the emission lines, and a power supply that generates and outputs a first high voltage and a second high voltage. The second scan driver receives the first high voltage. The first scan driver and the emission control driver share the second high voltage.

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.

Disclosed is a data driving circuit including a noise filter, first through third voltage generators, and an output circuit. The noise filter receives a driving voltage and removes noise from the driving voltage to output a filtered driving voltage. The first voltage generator outputs a first voltage, a second voltage, and a third voltage. The second voltage generator generates a first reference voltage based on the filtered driving voltage, the first voltage, and the second voltage. The third voltage generator generates a second reference voltage based on the filtered driving voltage, the second voltage, and the third voltage. The output circuit outputs a data signal of a voltage level corresponding to an image signal based on the first reference voltage and the second reference voltage.

An overcurrent protection circuit and display drive device, comprising: when input current of a front end corresponding to a logic signal experiences overcurrent, preventing the input current of the front end experiencing overcurrent from being transmitted to a drive chip, thereby preventing damage to the drive chip.

Provided are a display panel and a display device. The display panel includes a driver circuit, a pixel circuit, a light-emitting element, a first power signal bus, and a second power signal bus. The driver circuit provides a drive signal for the pixel circuit. The pixel circuit provides a drive current for the light-emitting element. The light-emitting element includes a first electrode and a second electrode. The first power signal bus transmits a first power signal V1, the second power signal bus transmits a second power signal V2, and V1≠V2. The first power signal bus is connected to the pixel circuit. The pixel circuit is connected to the first electrode. The second power signal bus is connected to the second electrode. The second power signal bus at least partially overlaps the driver circuit.

According to one embodiment, a display device includes a display region where pixels are arranged. Each of the pixels includes a pixel electrode, a light emitting element, a drive transistor, a first capacitance electrode layer opposed to the pixel electrode and held at a constant potential, and an insulating layer forming an auxiliary capacitance together with the pixel electrode and the first capacitance electrode layer. A value of the auxiliary capacitance of the first pixel, of the values of the auxiliary capacitance of the pixels is the largest.

The present application discloses a display assembly and a display device. The display assembly includes a first display panel, a second display panel and a driving circuit; the second display panel is arranged in a stack with the first display panel; the first display panel and the second display panel have the same resolution, and the driving circuit outputs the same data driving signal to the first display panel and the second display panel; light emitting surfaces of the first display panel and the second display panel face the same direction.