Abstract: Power management device for driving a display panel is disclosed. In order to achieve the above object, a power management device of operating a display panel may include a first buffer circuit configured to generate and output a first gamma reference voltage in a first section of a frame and generate and output a first touch driving voltage in a second section of the frame; and a second buffer circuit configured to generate and output a second gamma reference voltage in the first section and generate and output a second touch driving voltage in the second section.

Abstract: The present disclosure relates to a touch driver circuit capable of reducing the distortion of a common voltage modulation signal caused by line resistance. The touch driver circuit may include a touch power integrated circuit configured to generate a reference gamma voltage set to output the reference gamma voltage set through a gamma transmission path during a display period, and generate a touch driving voltage to output the touch driving voltage through the gamma transmission path during a touch period, and a source-readout integrated circuit configured to drive a source driving circuit block using the reference gamma voltage set during the display period, and generate a common voltage modulation signal using the touch driving voltage to drive a readout circuit block using the generated common voltage modulation signal during the touch period.

Abstract: The present disclosure relates to a technology for a power management device applied to a display device, in which driving voltages having different levels are supplied to driving devices having different sizes of load in different times, and this allows all of the driving devices to stably receive voltages within a limited range even though the number of driving devices increases according to the enlargement of a display panel.

Abstract: The present embodiment provides a technology for sensing a common mode voltage in the positive line and negative line of a transmission line for image data and determining whether noise occurs in the image data transmitted through the transmission line by comparing the common mode voltage with a set reference voltage.

Abstract: The present disclosure relates to a touch driver circuit capable of reducing the distortion of a common voltage modulation signal caused by line resistance. The touch driver circuit may include a touch power integrated circuit configured to generate a reference gamma voltage set to output the reference gamma voltage set through a gamma transmission path during a display period, and generate a touch driving voltage to output the touch driving voltage through the gamma transmission path during a touch period, and a source-readout integrated circuit configured to drive a source driving circuit block using the reference gamma voltage set during the display period, and generate a common voltage modulation signal using the touch driving voltage to drive a readout circuit block using the generated common voltage modulation signal during the touch period.

Abstract: The present embodiment provides a technology for sensing a common mode voltage in the positive line and negative line of a transmission line for image data and determining whether noise occurs in the image data transmitted through the transmission line by comparing the common mode voltage with a set reference voltage.

Abstract: The present disclosure, which relates to a power management integrated circuit to dynamically control ripples of driving voltages, allows reducing power consumption of the power management integrated circuit in a section where there is no operation for a display.

Abstract: The present disclosure relates to a technology for a power management device applied to a display device, in which driving voltages having different levels are supplied to driving devices having different sizes of load in different times, and this allows all of the driving devices to stably receive voltages within a limited range even though the number of driving devices increases according to the enlargement of a display panel.

Abstract: Power consumption of a display device is reduced by controlling power supplies in driving sections and in non-driving sections to be different.

Abstract: The present disclosure, which relates to a power management integrated circuit to dynamically control ripples of driving voltages, allows reducing power consumption of the power management integrated circuit in a section where there is no operation for a display.

Abstract: Power consumption of a display device is reduced by controlling power supplies in driving sections and in non-driving sections to be different.