Abstract: The present invention relates to a sensing structure of touch panel, which comprises a plurality of electrode groups disposed on a substrate. The substrate has a first side and a second side. Each electrode group comprises a first external electrode, a second external electrode, a plurality of internal electrodes, and a plurality of wires. The first external electrode is disposed on a first side; the second external electrode is disposed on the second side; the plurality of internal electrodes are disposed between the first external electrode and the second external electrode; and the plurality of wires are disposed on both sides of the electrode group alternately. Thereby, by disposing the first external electrode, the second external electrode, and the internal electrodes, all being zigzag, the disposable number of electrodes in each electrode group is increased. Accordingly, the sensitivity of touch sensing for the sensing structure of touch panel is enhanced.

Abstract: A power conversion system in an electronic device is utilized for converting an input voltage of a power source terminal to a required voltage of a load circuit to provide power to the load circuit. The power conversion system includes a first voltage conversion circuit for converting the input voltage to the required voltage of the load circuit according to a first control signal; and a power control module for generating the first control signal according to a starting signal or a load voltage of the load circuit; wherein the load circuit receives the voltage outputted from the first voltage conversion circuit to perform operations.

Abstract: The present invention relates to a driving circuit, the touch device thereof the touch module thereof, and the method for manufacturing the same. The present invention comprises a control circuit, a scan circuit, a touch panel, and a detection circuit. The control circuit generates an input signal. The scan circuit comprises a plurality of signal generating circuits, which receive the input signal, generate a plurality of scan signals according to the input signal, and output the plurality of scan signals to the plurality of scan electrodes of the touch panel. The detection circuit detects the touch panel according to the plurality of scan signals and outputs a detection signal to the control circuit to let the control circuit know at least a touch point of the touch panel being touched.

Abstract: The present disclosure provides a method of reusing electrical energy for a charge pump. The method comprises operating in a reusing phase after a boosting phase is completed; retrieving energy of parasitic capacitance in the reusing phase; and reusing the energy of the parasitic capacitance for an internal circuit.

Abstract: The present invention discloses a power circuit having multiple stages of charge pumps. The power circuit comprises a first charge pump, a second charge pump, a voltage stabilizing capacitor, and an output capacitor. The first charge pump adjusts an input voltage and produces a first output voltage. The second charge pump adjusts the first output voltage, produces a second output voltage, and outputs the second output voltage for driving a loading. The voltage stabilizing capacitor is coupled between the first and second charge pumps and connected externally to the output of the first charge pump. The output capacitor is coupled to the second charge pump for providing the second output voltage. According to the present invention, the effect of supplying large transient currents to the loading can be achieved by connecting externally the voltage stabilizing capacitor to the output of the first charge pump.

Abstract: A method of refreshing a memory array for a driving circuit includes generating a word-line scanning signal corresponding to a word-line of a memory array, and turning on a plurality of memory cells corresponding to the word-line of the memory array according to the word-line scanning signal to refresh the plurality of memory cells corresponding to the word-line of the memory array, wherein the memory has a first number of bit-lines and a second number of word-lines.

Abstract: The present invention provides an ambient light sensing module, which comprises a sawtooth signal generating circuit, an optical sensing unit, and a comparing unit. The sawtooth signal generating circuit produces a sawtooth signal. The optical sensing unit senses a light source and produces a light-sensing signal. The comparing unit produces a pulse-width modulation (PWM) signal related to the intensity of the light source according to the light-sensing signal and the sawtooth signal so that the PWM signal can be used as the control signal of the electronic device. The ambient light sensing module further comprises at least a fuse for determining a processing parameter. A signal processing unit processes the light-sensing signal according to the processing parameter for outputting a converting signal. The comparing unit compares the converting signal with the sawtooth signal for producing the PWM signal.

Abstract: A driver circuit for dot inversion of liquid crystals includes a positive source supplying a first positive signal and a second positive signal; a negative source supplying a first negative signal and a second negative signal; a first selector unit connected with the sources to receive the first positive signal and the first negative signal; a second selector unit connected with the sources to receive the second positive signal and the second negative signal; a first source connected with the selection unit to alternatively output a first positive voltage and a first negative voltage; a second source connected with the selection unit to alternatively output a second positive voltage and a second negative voltage. When the first source outputs the first positive voltage, the second source outputs the second negative voltage. When the first source outputs the first negative voltage, the second source outputs the second positive voltage.

Abstract: The present disclosure provides a voltage calibration circuit. The voltage calibration circuit includes a coupling voltage detection circuit and a common voltage circuit. The coupling voltage detection circuit is used for detecting a coupling voltage in an initial phase and generating a compensation voltage according to the coupling voltage. The common voltage circuit is used for adjusting a common voltage according to the compensation voltage and outputting the common voltage to a display module in a display phase.

Abstract: The present invention discloses a power circuit having multiple stages of charge pumps. The power circuit comprises a first charge pump, a second charge pump, a voltage stabilizing capacitor, and an output capacitor. The first charge pump adjusts an input voltage and produces a first output voltage. The second charge pump adjusts the first output voltage, produces a second output voltage, and outputs the second output voltage for driving a loading. The voltage stabilizing capacitor is coupled between the first and second charge pumps and connected externally to the output of the first charge pump. The output capacitor is coupled to the second charge pump for providing the second output voltage. According to the present invention, the effect of supplying large transient currents to the loading can be achieved by connecting externally the voltage stabilizing capacitor to the output of the first charge pump.

Abstract: The present invention relates to a voltage boosting circuit capable of modulating duty cycle automatically, which comprises an inductor, a switching module, and a control circuit. The inductor is coupled to an input for receiving an input power. The switching module is coupled among the inductor, a ground, and an output for switching so that the input power can charge the inductor and produce charged energy, or for switching so that the charged energy of the inductor can discharge to the output and produce an output voltage. The control circuit outputs at least a control signal according to the charged energy and the output voltage for controlling the switching module to switch the inductor and provide the input power to the output, to switch the charged energy of the inductor to discharge to the output, or to switch the input power to charge the inductor.

Abstract: The present invention relates to a power circuit of displaying device, which comprises a timing controller, a control circuit, and a charge pump (single or multiple stages). The timing controller outputs a timing control signal to the control circuit. The control circuit outputs a clock signal or a capacitance adjusting signal according to the timing control signal. The charge pump receives the input voltage and outputs an output voltage according to the clock signal or the capacitance adjusting signal. The output voltage is provided to the scan driver for generating a plurality of scan driving signals. Accordingly, by increasing the rise rate of the output voltage of the charge pump in the voltage conversion time and reducing the rise rate of the output voltage close to the voltage holding time, the present invention can achieve the effect of reducing the power consumption.

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 an analog-to-digital converting circuit with temperature sensing and the electronic device thereof. The present invention uses a first impedance device to receive a reference voltage and produces an input current according to a temperature. An analog-to-digital converting unit is coupled to the first impedance device and produces a digital output signal according to the input current. Thereby, according to the present invention, by integrating the first impedance device into the analog-to-digital converting circuit, the circuit area and the power consumption can be lowered, which further reduces the cost and improves the accuracy of temperature sensing.

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 a sensing structure of touch panel, which comprises a plurality of first electrode groups are located on a first side of a substrate. The bottom of each first electrode is located on the first side and extends towards a second side. A plurality of extended electrode groups are connected to the plurality of first electrode groups, respectively. The bottom of each extended electrode is located on the second side and extends towards the first side. The plurality of second electrode groups are located on the substrate. A first sub-electrode of each second electrode is interleaved with and insulated electrically from each extended electrode. The plurality of third electrode groups are located on the substrate and have a plurality of third electrodes. A first sub-electrode of the third electrode is interleaved with and insulated electrically from the second sub-electrode of the second electrode.

Abstract: The present invention relates to a voltage converter, which uses an inductor coupled between a power supply and a reference voltage for providing a supply voltage. A plurality of output capacitors are coupled to both sides of the inductor, respectively, and receive the supply voltage for producing a positive voltage and a negative voltage. A plurality of output switches are coupled to both sides of the inductor, respectively, and control the inductor to charge the plurality of output capacitors. A feedback control circuit produces a control signal according to the positive and negative voltages for controlling the plurality of output switches. Thereby, the present invention can produce positive and negative voltage by means of the inductor. Accordingly, the voltage converter according to the present invention avoids usage of multiple inductors and capacitors in producing voltages with different levels, and thus reducing the circuit area as well as the manufacturing cost.

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 oscillating device, which comprises a driving module and an oscillating module. The driving module is used for producing a first driving voltage and a second driving voltage. The oscillating module comprises a first symmetric load circuit, a second symmetric load circuit, and a bias circuit. The first symmetric load circuit and the second symmetric load circuit produce a bias according to the first driving voltage. The bias circuit produces a bias current according to the second driving voltage. The oscillating module produces an oscillating signal according to the first driving voltage and the bias current, where the bias current is proportional to the bias. Thereby, by making the driving signal produced by driving module proportional to the bias of the oscillating module, simple compensation for temperature and process can be performed. Thereby, the frequency can be tuned using a few calibration bits.

Abstract: The present invention discloses a mobile phone comprising a gravity sensor, a processor, and a memory. The gravity sensor senses inertia data along a specific direction, the processor couples with the gravity sensor and receives a output signal from the gravity sensor, and the memory stores at least one personal information and operates under the processor's control. When either the gravity sensor or the processor detects a vertical free-fall motion, the processor performs a information security process to lock the personal information to become inaccessible.