A display driving circuit and a display device including the same are provided. The display driving circuit includes a source driver which applies source data to a display panel, a power supply unit which receives an external voltage from a power module to generate an internal voltage and a logic unit which is supplied with the internal voltage to control the source driver, wherein the logic unit includes a voltage variable determination logic which determines whether a supply voltage including the internal voltage and the external voltage is changed, thereby generating a voltage variable signal, and a voltage control logic which receives the voltage variable signal to change the supply voltage.

A channel control unit and a display device using the same are provided. The channel control unit can include a data driver that converts pixel data into data voltages and supplies the data voltages to data lines, and an ineffective channel controller that receives channel data, generates dummy data during an ineffective channel section indicated by the channel data, and sends the dummy data to the data driver.

A display device includes: a display panel including pixels, first to N-th gate integrated circuits (GICs) embedded in gate circuit boards and configured to output gate signals to the pixels, a first gate input power line and a first gate input signal line formed to pass through the gate circuit boards and connected to the GICs, a first feedback power line connected to the first gate input power line, a power supply configured to output a first gate input voltage to the first gate input power line, a first compensator configured to output a first compensation signal in response to a first feedback voltage from the first feedback power line, and a controller configured to output a first gate control signal to the first gate input signal line and output a power control signal to the power supply in response to the first compensation signal.

A buffer circuit according to an aspect of the inventive concepts include an operational amplifier configured to amplify an input voltage to generate an output voltage; a slew-rate compensating circuit configured to generate a compensation current based on a difference between a voltage level of the input voltage and a voltage level of the output voltage, and configured to provide the compensation current to the operational amplifier through a boosting transistor; and an offset blocking circuit configured to turn off the boosting transistor when the difference between the voltage level of the input voltage and the voltage level of the output voltage is less than a reference voltage level by providing a blocking current to the slew-rate compensating circuit.

A display device includes a display panel, a display controller configured to output a video data signal, a gate driver, and a plurality of source drivers which are arranged in an extension direction of gate lines and generate a gradation voltage signal to be supplied to each of a plurality of pixel units based on the video data signal supplied from the display controller. Each of the plurality of source drivers includes a data processing unit configured to share an abnormal state sharing signal indicating whether an abnormality has occurred in communication with the display controller with other source drivers, and when the abnormal state sharing signal indicates that an abnormality has occurred in communication with the display controller, supply a gradation voltage signal corresponding to predetermined gradation data different from a gradation voltage signal based on the video data signal to each of the plurality of pixel units.

An operation method and an electronic device supporting the same are provided. The operation method includes receiving, by a display driver integrated circuit (IC), display data from a processor and supplying, by the display driver IC, a second gamma signal set to display a luminance of a second magnitude greater than a first magnitude to a second display area having a second pixel arrangement density lower than a first pixel arrangement density, while supplying a first gamma signal set to display a luminance of the first magnitude to a first display area disposed at the first pixel arrangement density in a display panel.

A full-panel display with hybrid regional subpixel layouts is provided. The full-panel includes a display panel having a first region with an array of first subpixels of respective a first color, a second color, and a third color, and a second region with an array of second subpixels of respective the first color, the second color, and the third color. The array of first subpixels and the array of second subpixels are collectively configured to achieve a higher transmission rate in the first region to an accessory installed therein while keep a luminance ratio between the first subpixels unchanged from that between the second subpixels. Optionally, a number density and/or a unit subpixel area of the first subpixels of at least one color is smaller in the first region than that in the second region.

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.

Disclosed are a method for driving a silicon-based driving back plate and a display apparatus. The method includes: acquiring a watch position of a user on the silicon-based driving back plate within one frame time; determining a watch region of the user on the silicon-based driving back plate according to the watch position; and controlling a sum of an analog modulation bit for analog scanning charging and a digital modulation bit for digital scanning charging performed on each row of pixels in the watch region to be greater than a sum of an analog modulation bit for analog scanning charging and a digital modulation bit for digital scanning charging performed on each row of pixels in a non-watch region.

A light emitting display device includes a pixel circuit unit, a data distribution unit, a plurality of signal generating units, a unit light emitting diode, and a dummy opening. The pixel circuit unit is configured to generate an output current. The data distribution unit is configured to apply a data voltage to the pixel circuit unit through a data line. The plurality of signal generating units are respectively configured to apply a scan signal and a light emission control signal to the pixel circuit unit through a plurality of signal lines. The unit light emitting diode is configured to receive the output current of the pixel circuit unit and is attached to the pixel circuit unit. The dummy opening is formed in the region where the pixel circuit unit, the data distribution unit, and a plurality of signal generating units are not positioned.