Abstract: The present disclosure provides a driving system. The driving system includes: a voltage generating circuit configured to generate (2m+k+1) initial grayscale voltages; a ramp voltage curve generating circuit configured to generate (2m+1) ramp voltage curves by using the (2m+k+1) initial grayscale voltages based on k-bit data of received pixel data, each ramp voltage curve of the (2m+1) ramp voltage curves including 2k step voltages; a source driving circuit configured to generate additional 2n ramp voltage curves by using any two adjacent ramp voltage curves of the (2m+1) ramp voltage curves based on m-bit data of the received pixel data; and an output control circuit configured to select a grayscale voltage of the ramp voltage curves based on the received pixel data and send the selected grayscale voltage to the data signal input terminals of the pixel circuit.

Abstract: Provided is a compensation circuit for an operational amplifier including a primary pole. The compensation circuit includes: a control circuit; and a compensation capacitor including a first terminal connected to the primary pole, and a second terminal connected to an output terminal of the control circuit. The control circuit includes: a pull-up module including a control terminal connected to a second control signal terminal, an input terminal connected to an input power supply, and an output terminal connected to a first control node being the output terminal of the control circuit; a pull-down module including a control terminal connected to a first control signal terminal, and an output terminal connected to ground; and an input transistor including a control terminal connected to the primary pole, an input terminal connected to a first control node, and an output terminal connected to an input terminal of the pull-down module.

Abstract: The present disclosure provides a driving system. The driving system includes: a voltage generating circuit configured to generate (2m+k+1) initial grayscale voltages; a ramp voltage curve generating circuit configured to generate (2m+1) ramp voltage curves by using the (2m+k+1) initial grayscale voltages based on k-bit data of received pixel data, each ramp voltage curve of the (2m+1) ramp voltage curves including 2k step voltages; a source driving circuit configured to generate additional 2n ramp voltage curves by using any two adjacent ramp voltage curves of the (2m+1) ramp voltage curves based on m-bit data of the received pixel data; and an output control circuit configured to select a grayscale voltage of the ramp voltage curves based on the received pixel data and send the selected grayscale voltage to the data signal input terminals of the pixel circuit.

Abstract: A pixel circuit and a display device are provided. The pixel circuit includes a pixel unit which includes an operating current generating module and a light emission control module. The operating current generating module has a gate voltage terminal and is configured to generate an operating current according to a voltage of the gate voltage terminal. The light emission control module is connected in series with the operating current generating module and configured to control whether to provide the operating current to a light emitting device according to a light emission control signal. The driving control circuit includes: a data current module, configured to provide a data current and to input the data current to the gate voltage terminal; and a current adjusting module, configured to control whether to input a compensation current to the gate voltage terminal according to a current value of the operating current.

Abstract: A current-bootstrap comparator includes a receiving unit, a first current generation unit and a second current generation unit. The receiving unit receives a load voltage signal, a low threshold voltage and a high threshold voltage. The first current generation unit generates a first current. The second current generation unit generates a second current having a magnitude substantially same as a magnitude of the first current and a direction reverse to the first current. The first current and the second current are supplied to a next-stage circuit as a source current and a corresponding sink current, respectively, when the level of the load voltage signal is higher than the high threshold voltage or lower than the low threshold voltage. The magnitudes of the first current and the second current substantially equal zero when the level of the load voltage signal is between the high threshold voltage and the low threshold voltage.

Abstract: A current-bootstrap comparator includes a receiving unit, a first current generation unit and a second current generation unit. The receiving unit receives a load voltage signal, a low threshold voltage and a high threshold voltage. The first current generation unit generates a first current. The second current generation unit generates a second current having a magnitude substantially same as a magnitude of the first current and a direction reverse to the first current. The first current and the second current are supplied to a next-stage circuit as a source current and a corresponding sink current, respectively, when the level of the load voltage signal is higher than the high threshold voltage or lower than the low threshold voltage. The magnitudes of the first current and the second current substantially equal zero when the level of the load voltage signal is between the high threshold voltage and the low threshold voltage.

Abstract: The present invention relates to a driving circuit for a display panel and the driving module thereof and a display device and the method for manufacturing the same. The present invention comprises a power generating module, a plurality of signal generating units, a power generating circuit, and a scan control circuit. The power generating module generates a supply power source according to an input power source. The plurality of signal generating units are coupled to the power generating module and generate a plurality of control signals according to the supply power source and a plurality of input signals. The power generating circuit generates a driving power source. The scan control circuit is coupled to the power generating circuit and the plurality of signal generating unit, and generates a plurality of scan signals according to the driving power source and at least one of the plurality of control signals.

Abstract: The present relates to a start-up circuit, which is used for starting up a variable power supply circuit, which comprises a detection circuit and a transition circuit. The detection circuit is used for detecting an output voltage of the variable power supply and producing a detection signal. The transition circuit is coupled to the detection circuit. It transits the level of the detection signal and produces a control signal for starting up or cutting off the variable power supply. Thereby, the problem of incapability in transition can be avoided as well as achieving the purpose of low power consumption.

Abstract: The present invention relates to a driving circuit for a display panel and the driving module thereof and a display device and the method for manufacturing the same. The present invention comprises a power generating module, a plurality of signal generating units, a power generating circuit, and a scan control circuit. The power generating module generates a supply power source according to an input power source. The plurality of signal generating units are coupled to the power generating module and generate a plurality of control signals according to the supply power source and a plurality of input signals. The power generating circuit generates a driving power source. The scan control circuit is coupled to the power generating circuit and the plurality of signal generating unit, and generates a plurality of scan signals according to the driving power source and at least one of the plurality of control signals.

Abstract: The present invention relates to an operational amplifier having low power consumption, which comprises a differential circuit, an output-stage circuit, and a floating bias generating circuit. The differential circuit receives an input signal and produces a control signal. The output-stage circuit is coupled to the differential circuit and produces an output signal according to the control signal. The floating bias generating circuit is coupled between the differential circuit and the output-stage circuit and generates a floating bias according to the control signal for controlling the rising or lowering of the voltage level of the output signal. Accordingly, the operational amplifier can charge and discharge rapidly, and thus extending the applications of the operational amplifier. Besides, the floating bias generating circuit can limit the output current while the operational amplifier is driving, and thus achieving the purpose of low power consumption.

Abstract: The present invention relates to an operational amplifier comprising an input-stage circuit, a floating current mirror circuit, and an output-stage circuit. The input-stage circuit receives an input signal and produces a control signal. The floating current mirror circuit is coupled to the input-stage circuit, and produces a mirror current according to the control signal. The output-stage circuit is coupled to the floating current mirror circuit, and produces a driving signal according to the mirror current. When the operational amplifier is operating in the static mode, the output-stage circuit further produces a static current according to the mirror current. Thereby, by using the floating current mirror circuit, the purpose of low power consumption can be achieved while driving to the high-voltage mode or to the low-voltage mode.

Abstract: A driving device outputting a plurality of sequentially asserted driving signals is provided, including a shift register, a buffer unit, and switch circuits. The shift register includes shift registering units coupled in series. The shift registering units respectively generate shift registering signals which are sequentially asserted. The buffer unit receives at least one input signal. The input signal is periodically asserted, and the buffer unit outputs the input signal. The switch circuits are coupled to the shift registering units to receive the shift registering signals, respectively. All of the switch circuits are coupled to the buffer unit to receive the input signal, and the switch circuits sequentially output the input signal to serve as the driving signals according to the assertion of the shift registering signals.

Abstract: A display panel includes a gate line circuit. The gate line circuit includes a gate driver, a control circuit and a gate line. The gate driver generates a first driving signal with alternate high and low levels. The first driving signal has a first rising edge and a first falling edge. The control circuit receives the first driving signal and generates a second driving signal. The second driving signal has a second rising edge and a second falling edge. The second rising edge and the second falling edge are respectively smoother than the first rising edge and the first falling edge. The control circuit includes at least one capacitor. The capacitor is charged in a first direction in response to the first rising edge of the first driving signal. The capacitor is charged in a second direction in response to the first falling edge of the first driving signal.

Abstract: A control method controlling a display panel comprising a pixel unit. The pixel unit is coupled to a data line and comprises a capacitor, a transistor, and a luminiferous device. The capacitor comprises a first terminal coupled to the data line and a second terminal coupled to the transistor. The voltage of the first terminal is increased and the voltage of the second terminal is reduced during a first period. The voltage of the first and the second terminals are controlled during a second period subsequent to the first period. The luminiferous device is lit according to the voltage of the capacitor during a third period subsequent to the second period. The voltage of the data line is maintained during the third period.

Abstract: A display device including a pixel unit, a selection unit, and a control unit is disclosed. The pixel unit includes a driving transistor and a capacitor. The driving transistor includes a gate and a source. The capacitor is coupled between the gate and the source. The selection unit selectively transmits a first voltage or a second voltage to the driving transistor. The control unit controls the selection unit and receives the voltage of the source.

Abstract: The present invention relates to an operational amplifier comprising an input-stage circuit, a floating current mirror circuit, and an output-stage circuit. The input-stage circuit receives an input signal and produces a control signal. The floating current mirror circuit is coupled to the input-stage circuit, and produces a mirror current according to the control signal. The output-stage circuit is coupled to the floating current mirror circuit, and produces a driving signal according to the mirror current. When the operational amplifier is operating in the static mode, the output-stage circuit further produces a static current according to the mirror current. Thereby, by using the floating current mirror circuit, the purpose of low power consumption can be achieved while driving to the high-voltage mode or to the low-voltage mode.

Abstract: The present relates to a start-up circuit, which is used for starting up a variable power supply circuit, which comprises a detection circuit and a transition circuit. The detection circuit is used for detecting an output voltage of the variable power supply and producing a detection signal. The transition circuit is coupled to the detection circuit. It transits the level of the detection signal and produces a control signal for starting up or cutting off the variable power supply. Thereby, the problem of incapability in transition can be avoided as well as achieving the purpose of low power consumption.

Abstract: A system for displaying image is provided. The system includes a pixel unit coupled to a source driver and including a first switch, a second switch, a first capacitor, a second capacitor, a driving transistor, and a luminiferous device. The first switch includes a first control terminal receiving a first scan signal, a first terminal receiving a first operation voltage, and a second terminal. The second switch includes a second control terminal receiving a second scan signal, a third terminal, and a fourth terminal coupled to the source driver. The first capacitor is coupled between the first and the second terminals. The second capacitor is coupled between the second and the third terminals. The driving transistor includes a gate coupled to the second terminal, a source receiving the first operation voltage, and a drain. The luminiferous device is coupled to the drain and receiving a second operation voltage.

Abstract: A display device including a pixel unit, a selection unit, and a control unit is disclosed. The pixel unit includes a driving transistor and a capacitor. The driving transistor includes a gate and a source. The capacitor is coupled between the gate and the source. The selection unit selectively transmits a first voltage or a second voltage to the driving transistor. The control unit controls the selection unit and receives the voltage of the source.

Abstract: A display device including a pixel unit, a selection unit, and a control unit is disclosed. The pixel unit includes a driving transistor and a capacitor. The driving transistor includes a gate and a source. The capacitor is coupled between the gate and the source. The selection unit selectively transmits a first voltage or a second voltage to the driving transistor. The control unit controls the selection unit and receives the voltage of the source.