Abstract: An LED driving apparatus for driving an LED array including an output terminal group and a converter group is provided. The output terminal group includes a plurality of output terminals. The converter group includes a plurality of digital-to-analog converters. Each of the digital-to-analog converters outputs a driving current according to pixel data to drive a corresponding one of the LEDs. Each of digital-to-analog converters includes a plurality of sub-driving current generating circuits. The sub-driving current generating circuits are coupled to the corresponding output terminal of the output terminal group. Each of the sub-driving current generating circuits generates a sub-driving current having a current value corresponding to a bit order of a bit of the pixel data. The driving current is generated by summing up the sub-driving currents.

Abstract: A current driving digital pixel apparatus including a power rail, a common rail, a micro light emitting device, and a current driver is provided. The power rail is configured to supply a source current. The micro light emitting device is electrically coupled to the common rail. The current driver includes a first switching device electrically coupled to the power rail and a current mirror device electrically coupled between the first switching device and the micro light emitting device. The current mirror device receives the source current from the power rail through the first switching device and supplies a current to the micro light emitting device. The first switching device is a low voltage device and the current mirror device is a medium voltage device.

Abstract: A current source with hysteresis for an output circuit includes a tail current transistor, a resistor and a differential pair. The tail current transistor is used for supplying a current to the output circuit. The resistor is coupled to a drain terminal of the tail current transistor. The differential pair, coupled to the resistor, is used for controlling a magnitude of the current supplied to the output circuit. The differential pair includes a first transistor, of which a bulk terminal is coupled to a terminal of the resistor; and a second transistor, of which a bulk terminal is coupled to another terminal of the resistor.

Abstract: A driving circuit configured to drive a display panel having a touch panel is provided. The driving circuit includes a signal generating circuit, a sensor driving circuit, and a source driving circuit. The signal generating circuit modulates a plurality of voltage signals on a first driving signal and a second driving signal, and drives the gate lines with the modulated first driving signal and the modulated second driving signal during a sensing period. The sensor driving circuit modulates the voltage signals on a third driving signal, and drives the sensor pads with the modulated third driving signal during the sensing period. The data lines are controlled to be electrically floating during the sensing period. In addition, a method for driving a display panel having a touch panel is also provided.

Abstract: A current source with hysteresis for an output circuit includes a tail current transistor, a resistor and a differential pair. The tail current transistor is used for supplying a current to the output circuit. The resistor is coupled to a drain terminal of the tail current transistor. The differential pair, coupled to the resistor, is used for controlling a magnitude of the current supplied to the output circuit. The differential pair includes a first transistor, of which a bulk terminal is coupled to a terminal of the resistor; and a second transistor, of which a bulk terminal is coupled to another terminal of the resistor.

Abstract: A level conversion circuit including a first level shifter and a second level shifter is provided. The first level shifter converts a first control voltage into a second control voltage during a voltage conversion period. The second level shifter is coupled to the first level shifter. The second level shifter converts the second control voltage into a third control voltage during the voltage conversion period to control a next stage circuit. The first level shifter is configured to detect a voltage level of a power domain where the third control voltage operates and generate a plurality of middle voltages based on the detection result. The second level shifter is configured to generate the third control voltage based on the middle voltages. Furthermore, a voltage level conversion method is also provided.

Abstract: A level conversion circuit including a first level shifter and a second level shifter is provided. The first level shifter converts a first control voltage into a second control voltage during a voltage conversion period. The second level shifter is coupled to the first level shifter. The second level shifter converts the second control voltage into a third control voltage during the voltage conversion period to control a next stage circuit. The first level shifter is configured to detect a voltage level of a power domain where the third control voltage operates and generate a plurality of middle voltages based on the detection result. The second level shifter is configured to generate the third control voltage based on the middle voltages. Furthermore, a voltage level conversion method is also provided.

Abstract: This invention discloses an anti-biofouling membrane for water-treatment. The anti-biofouling membrane for water-treatment comprises a substrate, and an anti-biofouling copolymer on the substrate. The anti-biofouling copolymer comprises a plurality of hydrophobic groups and a plurality of hydrophilic groups. The anti-biofouling copolymer can be stably coated on the surface of the substrate by the hydrophobic groups. And the hydrophilic groups can help the anti-biofouling membrane to present excellent anti-biofouling capability. Preferably, the anti-biofouling copolymer coated on the substrate will not decrease the permeability of the substrate. More preferably, the presented capability of the mentioned anti-biofouling membrane for water-treatment can achieve the commercial level filtering membrane.

Abstract: A power selector, a source driver and an operating method thereof are provided. The source driver includes a plurality of channel groups. Each channel group includes a first and a second switching unit, a first and a second multiplexer, and an operating voltage control module. The first and the second switching unit respectively receive a first-polarity grayscale data and a second-polarity grayscale data. Output terminals of the first and the second multiplexer are respectively coupled to a first and a second data line. The operating voltage control module switches operating voltages of the first and the second multiplexer to a first operating power set or a second operating power set according to polarities of the first and the second data line and controls the first and the second switching unit to prevent the first and the second multiplexer from receiving the first-polarity grayscale data and the second-polarity grayscale data simultaneously.

Abstract: A display driving device and a method for driving a display panel are provided. The display driving device includes the display panel and a display driver. The display panel includes a plurality of pixel units and a plurality of multiplexers. Each of the multiplexers is disposed with N data lines. The display driver provides a plurality of display data strings and a plurality of selection signals to the multiplexers to control the multiplexers according to the selection signals to receive and sequentially output the display data of the pixel units. Each of the display data strings forms two display data sets of different polarities in a same scan line, and the display data sets include the display data of at least one pixel unit. Thereby, the polarity inversion number of the display data and accordingly the power consumption can be reduced when the display driving device drives the pixel units.