Silicon Works Co., Ltd.

Lx Semicon Co., Ltd.

Jung Hyun Tark

Hyung Sub Kim

Jung Min Choi

Seong Sik Yoon

Hee Yoon Jung

Sang Woo Kim

Hong Kyu Choi

Geon Soo Jang

Su Jeong Na

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.

Power management device for driving display panel

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.

Touch driver circuitand driving method, and driver apparatus of touch display device

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.

Data driving circuit, method for detecting noise of display signal, and display apparatus

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.

Power management device and display device including the same

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.

Display device and power management integrated circuit

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

Growing community of inventors

Daejeon, South Korea

Jung Hyun Tark