Abstract: The present disclosure discloses a clock and data recovery circuit. The clock and data recovery circuit may include a clock recovery unit configured to output a recovery clock signal by operating a first time-to-digital conversion circuit or a second time-to-digital conversion circuit depending on a phase difference between a clock of an input signal and the recovery clock signal, and a data recovery unit configured to sample data from the input signal and output recovery data.

Abstract: Disclosed are a display driver for a low power driving and a timing controller for the display device. The display device may include the timing controller configured to transmit a packet to which one of first option information corresponding to a static pattern or second option information corresponding to a dynamic pattern is applied, and a source driver configured to receive the packet and to perform a low power mode corresponding to the static pattern based on the first option information or adaptive charge sharing corresponding to the dynamic pattern based on the second option information.

Abstract: A display driving device capable of operating a source driver integrated circuit (IC) in a low power mode during a touch sensing period includes a source driver IC configured to operate in a first low power mode in which an analog data processing unit is deactivated or operate in a second low power mode in which both of the analog data processing unit and a digital data processing unit are deactivated, during a touch sensing period of a first frame; and a readout IC configured to supply touch sensor driving signals to touch sensors during the touch sensing period and receive touch sensing data from the touch sensors according to the touch sensor driving signals.

Abstract: Disclosed is an ESD protection circuit which performs a protection operation by detecting an introduction of an ESD signal when the ESD signal is introduced through a power line. The ESD protection circuit includes a noise detection circuit configured to provide a first detection signal which detects power noise or an ESD signal introduced through a power line; an ESD detection circuit configured to provide a second detection signal which detects an ESD signal introduced through the power line; and a pull-down control circuit configured to perform pull-down on the ESD signal of the power line when the first detection signal which detects the power noise or the ESD signal and the second detection signal which detects the ESD signal are received.

Abstract: The present disclosure relates to a data driving device, a data processing device, and a system for driving a display device and, more particularly, relates to a data driving device, a data processing device, and a system for automatically optimizing the configuration of the equalizer of the data driving device in the display device.

Abstract: The present disclosure relates to a technology for driving an LED, comprising sensing a forward-direction voltage of an LED and determining whether or not the LED is defective by comparing the forward-direction voltage with a comparative object voltage, wherein the comparative object voltage is continuously updated using a sensed forward-direction voltage so that the comparative object voltage may be set to be an unfixed value, that is, a value reflecting a current state of an LED. This allows a more accurate detection of a defect of an LED.

Abstract: The present disclosure relates to a technology for adjusting differences among integrated circuits, that may occur in a pixel sensing, using bias voltages, and more particularly, a technology for adjusting a gain or an offset of each integrated circuit by adjusting a bias voltage.

Abstract: The present disclosure may improve contrast and deep black by efficiently controlling local dimming in consideration of the ratio of a black image data and the non-uniformity in the area between blocks.

Abstract: Provided are a mura compensation circuit and a driving apparatus for a display applying the same. The mura compensation circuit includes a data remapping unit configured to remap display data of a pixel having mura so that an original gray scale range of the display data has a changed gray scale range and to provide the display data having the gray scale range in which the highest gray scale of the original gray scale range is lowered to a first gray scale of the gray scale range and the lowest gray scale of the original gray scale range is raised to a second gray scale by the remapping, and a mura compensation unit configured to perform mura compensations on the display data having the changed gray scale range and to provide the display data on which the mura compensations have been performed.

Abstract: Provided is a buck-boost converting circuit including an LED current regulator and bypass switches. The buck-boost converting circuit includes switches coupled in a matrix form in order to individually control a plurality of LEDs connected in series, an LED current regulator, and a circuit capable of buck-boost conversion.

Abstract: An embodiment may integrate a data driving circuit, a pixel sensing circuit, and a touch sensing circuit into one integrated circuit, thereby simplifying interfaces and wires between circuits and reducing the number of components.

Abstract: The present disclosure relates to a technology for assigning group labels during touch sensing, and more particularly to a technology for preventing two adjacent objects from receiving a same group label by searching for a valley when group labels are assigned and this allows labeling without performing any object separation process.

Abstract: The present disclosure discloses a digital loop filter in an all-digital phase-locked loop. The digital loop filter may include a selection circuit configured to output one of a first data signal and a second data signal as valid data, a first operation circuit configured to output a first operation signal by adding or subtracting the valid data and a first register signal, a first register circuit configured to register the first operation signal and output the first operation signal as the first register signal, a second operation circuit configured to output a second operation signal by adding or subtracting a value of at least one bit of the valid data and the first register signal, and a second register circuit configured to store the second operation signal and output the second operation signal as a control signal.

Abstract: A display driving apparatus includes an internal reference voltage generation circuit configured to generate and provide an internal reference voltage; a sensing circuit configured to simultaneously sense pixel signals provided from pixels of a display panel and the internal reference voltage, and output a reference voltage sensing signal generated by sensing of the internal reference voltage and pixel sensing signals generated by sensing of the pixel signals; and an output circuit configured to sequentially select the reference voltage sensing signal and the pixel sensing signals, convert the pixel sensing signals into pixel data, convert the reference voltage sensing signal into reference data, and transmits the pixel data and the reference data.

Abstract: Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.

Abstract: In an embodiment, various active pens may be searched for in every frame, so that various active pens may operate in a touch sensing system.

Abstract: According to an embodiment, both the high-speed communication and the low-speed communication are performed using a single communication line, thereby reducing limitations on wiring on a PCB and increasing the utilization efficiency of a transmission line.

Abstract: A ratiometric analog-to-digital conversion circuit includes a first voltage range operation circuit configured to use a first power supply voltage of a first voltage range, and output an analog signal corresponding to an external input signal; and a second voltage range operation circuit configured to use a second power supply voltage of a second voltage range, generate a digital value by analog-to-digital converting the analog signal, feed back the digital value for analog-to-digital conversion, and output a digital signal corresponding to the digital value and proportional to the input signal.

Abstract: A touch sensing device that compensates for a phase error of a downlink signal transmitted/received between a display device and an active pen. The touch sensing device includes a differential amplifier configured to amplify a difference between a first accumulated capacitance value for a first touch group and a second accumulated capacitance value for a second touch group, based on a first downlink signal generated during a pre-driving section, an ADC configured to convert an output signal of the differential amplifier into digital data, and a phase error compensator configured to detect an edge of the first downlink signal based on a difference value between current and previous values of the digital data and compensate for a phase error of the first downlink signal using the edge of the first downlink signal and an edge of an internal timing signal.

Abstract: Disclosed is a technology that supplies a signal to a panel driving integrated circuit (IC). A plurality of signals having different characteristics are stably provided to a panel driving IC according to a display operation or a touch operation, by controlling capacitance connected to a transmission conduction wire.