A voltage regulation system, a driving circuit, a display device and a voltage regulation method are disclosed. The voltage regulation system, applicable to an electronic device, including a power supply circuit, a determination circuit and a regulation circuit. The power supply circuit is connected with the regulation circuit, and the power supply circuit is configured to provide a reference voltage and provide a first voltage inputted into the electronic device; the determination circuit is connected with the power supply circuit, and the determination circuit is configured to, according to the reference voltage and the first voltage, output a compensation voltage; and the regulation circuit is connected with the determination circuit so as to receive the compensation voltage, and the regulation circuit is configured to output a third voltage, according to the compensation voltage and a second voltage, in a case where the compensation voltage is not within a preset range.

A display system is disclosed. The display system includes an electronic device including first and second interfaces and a display apparatus. The electronic device is configured to: rectify external alternating current (AC) power by direct current (DC) power based on a first ground, convert the DC power into power based on a second ground, provide the converted power to the display apparatus through a first interface connected to the second ground, and provide a signal received from an external device through a second interface connected to an earth ground to the display apparatus through the first interface, wherein a ground of the display apparatus is the same as the second ground and the second ground is different from the earth ground.

A pixel driving circuit, a display device and an electronic device are provided. The pixel driving circuit includes: a first sub-pixel driving circuit, a second sub-pixel driving circuit, a third sub-pixel driving circuit, and a fourth sub-pixel driving circuit sequentially arranged in a first direction; a detection line; a first power line extending in the second direction; and a second power line extending in the second direction; wherein one of the first power line and the second power line is provided on a side of the second sub-pixel driving circuit away from the third sub-pixel driving circuit, and the other of the first power line and the second power line is provided on a side of the third sub-pixel driving circuit away from the second sub-pixel driving circuit.

The present disclosure proposes an overcurrent protective circuit and a display panel. The overcurrent protective circuit includes a power supply circuit, a logic algorithm circuit, and an overcurrent protective circuit. The logic algorithm circuit is additionally arranged in the overcurrent protective circuit. The logic algorithm circuit set different threshold currents of overcurrent protection for the display panel according on different driving frequencies. The overcurrent protective circuit adjusts the protective components inside the overcurrent protective circuit in accordance with the set threshold currents. Therefore, the display panel is protected by the overcurrent protective circuit at different frequencies.

A display device and a driving method thereof are provided. The display device includes a display including a pixel including a double gate transistor and a light emitting diode, a power supply for supplying power to the display, a current sensor for sensing a current flowing in the display or in the light emitting diode, and a gate voltage controller for providing a bias voltage signal to one gate electrode of the double gate transistor.

A display device includes a driving controller controlling a data driving circuit and providing a clock signal and a driving voltage in response to an image signal and a control signal received from an external source. The driving controller restores a data enable signal having a display period and a blank period in one frame on the basis of the control signal and sets a voltage level of the driving voltage applied to the gate driving circuit in accordance with a duration of the blank period. During a sequence of frames having a changing frame rate, the driving voltage for each respective frame may be set based on the duration of each respective blank period.

A display device includes a display panel including a plurality of pixels, a controller which generates a gate reference signal, a gate control circuit which outputs a gate driving signal based on the gate reference signal, and a gate driving circuit which provides gate signals to the plurality of pixels based on the gate driving signal. The gate control circuit includes a protection enable circuit which detects a first period of the gate reference signal, determines whether the period of the gate reference signal is changed, and generates a protection enable signal when the first period of the gate reference signal is not changed, and an over-current protection circuit which generates an over-current occurrence signal by detecting an over-current of the gate driving signal, and stops outputting the gate driving signal based on the over-current occurrence signal and the protection enable signal.

Embodiments relate to a display device that includes a control circuit, an array of light emitting diode (LED) zones, and an array of driver circuits that are distributed in the display area. The driver circuits are arranged in groups that are coupled to each other and to the control circuit in a serial communication chain via serial communication lines. The group of driver circuits are also coupled in parallel to a shared multi-wire command line that provides a high-speed interface for providing the driver control signals from the control circuit. The control circuit may furthermore issue readback commands to the driver circuits via the shared multi-wire command line or the serial communication chain. In response to the commands, the driver circuits provide readback data via a readback line through the serial communication chain or via parallel connections from the driver circuits.

A display device including pixels connected to first scan lines, second scan lines, third scan lines, emission control lines, and data lines, a first scan driver for supplying a first scan signal to each of the first scan lines in a first period, a second scan driver for supplying a second scan signal to each of the second scan lines in the first period, a third scan driver for supplying a third scan signal to each of the third scan lines in the first period and a second period, an emission driver for supplying an emission control signal to the emission control lines in the first period and the second period, and a data driver for supplying a data signal to the data lines in the first period, in which a width of the second scan signal is greater than that of the first scan signal.

A pixel includes a first light source including at least one first light emitting element between a first split electrode and a second power supply; a second light source unit including at least one second light emitting element between a second split electrode and the second power supply; a driving-current generator including a first transistor between a first power supply and the first and second light source units and generating a driving current corresponding to a first data signal; a first switching unit including a first switching element between the driving-current generator and the first light source; and a second switching unit including a second switching element between the driving-current generator and the second light source unit and controlling an electrical connection between the first and second light source units in response to a second data signal.