The present disclosure provides a method for a display driver system and a display driver system. The method comprises: the control circuit transmitting a global signal and a first signal for a LED driver circuit in each stage to a first-stage LED driver circuit, wherein the global signal includes an command for indicating an operation mode of the LED driver circuit in each stage; the LED driver circuit in each stage determining the operation mode corresponding to the command according to the global signal, identifying a corresponding first signal of the LED driver circuit in the stage, and operating according to the determined operation mode and the corresponding first signal; and the LED driver circuit in each stage except for last stage transmitting the global signal to the LED driver circuit in its next stage, and in response to a completion of operation according to the determined operation mode and the corresponding first signal, transmitting the first signal for the LED driver circuit in each of sequential stages to the LED driver circuit in its next stage.

The present disclosure relates to a display device. The display device includes a display panel, data lines, a constant voltage line, a feedback line, and a display driver. The display panel includes pixels. The data lines transfer data voltages to the pixels. The constant voltage line transfers a constant voltage to the pixels. The feedback line is coupled to the constant voltage line. The display driver is configured to sense a change amount of the constant voltage through the feedback line, generate compensated image data by compensating image data according to the sensed change amount of the constant voltage, and provide the data voltages corresponding to the compensated image data to the pixels.

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.

An e-book reader in which destruction of a driver circuit at the time when a flexible panel is handled is inhibited. In addition, an e-book reader having a simplified structure. A plurality of flexible display panels each including a display portion in which display control is performed by a scan line driver circuit and a signal line driver circuit, and a binding portion fastening the plurality of display panels together are included. The signal line driver circuit is provided inside the binding portion, and the scan line driver circuit is provided at the edge of the display panel in a direction perpendicular to the binding portion.

An influence degree display device includes an acquirer configured to acquire information regarding magnitude of an influence factor that has an influence on progress of deterioration of a secondary cell that stores power used to drive an electric motor vehicle a display configured to display an image and a display controller configured to cause the display to display an image indicating the degree of influence on the progress of the deterioration of the secondary cell in accordance with the acquired magnitude of the influence factor.

End user presence and absence states are determined at an information handling system by analyzing infrared time of flight sensor presence detection information and applying it to manage presentation of notifications at the information handling system, such as operating system notifications and hardware notifications. Notifications are queued when a predetermined user absence state is detected and presented when a predetermined user presence state is detected to that an end user has a greater probability of viewing notifications when the display presents visual images before sleeping for an end user absence and after waking from an end user presence.

A gate driving unit includes an input module, a first output module, a second output module, a feedback module, and an output-controlling module. The input module outputs a previous level-transferring signal into a first node. The first output module outputs a present level-transferring signal. The second output module outputs a scan signal. The feedback module outputs a present-level feedback signal. The output-controlling module pulls up potential of the scan signal to a first direct-current high voltage and pulls up potential of the present level-transferring signal to a second direct-current high voltage.

An image display device of the present invention comprises a display and a power supply unit, and the power supply unit comprises: a first voltage detection unit that detects an input AC voltage by using a first resistance element; a second voltage detection unit that detects an input AC voltage by using a differential circuit having a capacitor element and a second resistance element; a converter that converts the level of the input voltage on the basis of a switching operation of a switching element so as to output a DC voltage; and a control unit that may control the switching element in the converter to be turned on, on the basis of a first signal detected by the first voltage detection unit or a second signal detected by the second voltage detection unit. As such, the present invention operates stably even when an AC voltage of a square wave is applied.

Provided are a display device and a method of operating the same. The method of operating the display device, which includes a display panel including a plurality of pixels and a data driver configured to provide data signals having different voltage levels to all data lines connected to pixels, comprises steps of applying a data signal having a first data voltage to all the data lines, determining whether a preset sensing current flows in a target wire, and applying a data signal having a second data voltage to all the data lines, wherein the second data voltage is offset from the first data voltage by a certain voltage level.