Abstract: In a first display period of a display device, a first count value is recorded at the rising edge of the data enable signal for controlling the length of a horizontal line. Next, a second count value is recorded at the falling edge of the data enable signal for identifying the time when the data enable signal switches from a high level to a low level. When entering a porch period following the first display period, the counter is cleared when the count value reaches the first count value. In a second display period following the porch period, the counter is cleared at the rising edge of the data enable signal, and the first count value is used for controlling the length of the horizontal line.

Abstract: A driving method for a display device provides a first input pixel data corresponding to a pixel, and generates a second input pixel data by multiplying the first input pixel data by a predetermined rate. Next, an output pixel data corresponding to the second input pixel data is obtained from a predetermined gamma curve.

Abstract: A wired signal receiving apparatus including a signal receiver, a signal peak detector, and a signal comparator is disclosed. The signal receiver includes an operation current detecting circuit for detecting an operation current. The signal receiver further receives a transmission signal. The signal peak detector receives the operation current, detects a peak thereof, and generates a peak current. The signal comparator compares a reference signal and the peak current to generate an output current for regulating the operation current.

Abstract: A display driver apparatus and an inversion method thereof are provided. The display driver apparatus includes a gate drive unit, a source drive unit, a multiplexer unit and a common voltage generation unit. The gate drive unit is used to generate a gate signal for turning on/off sub-pixels. The source drive unit is used to generate a source signal required by the display panel. The multiplexer unit is used to regulate the sequence for the source signal to be delivered to the sub-pixels. The common voltage generation unit is used to generate a common voltage and switch the level of the common voltage during the enable period of the gate signal.

Abstract: A power-saving device for a driving circuit of a liquid crystal display panel is provided. The device comprises a first switch, a first capacitor, a second switch, a second capacitor, a third switch, an output buffer and a common electrode or a data line. The first capacitor and the second capacitor are coupled to the common electrode or the data line through the first switch and the second switch respectively. The output buffer is coupled to the common electrode or the data line through the third switch. The output buffer charges or discharges a ground-referenced equivalent capacitor of the data line or the common electrode. The device uses the switches to conduct positive and negative electric charges to the capacitors so that charges produced during the charging and discharging in the driving circuits of the common electrodes and data line can be stored and recycled to avoid unnecessary power waste.

Abstract: A DSD display driving method and driving device thereof are provided. Each of the pixels of the display is selectively driven by a pair of select lines, and the polarities of the select signals can be alternately changed in accordance with different frame times. The driving method and the driving device thereof is adapted for balancing the asymmetric positive and negative polarities of conventional pixel voltages and efficiently preventing the flicker phenomenon in a conventional driving method.

Abstract: A direct voltage/direct voltage converter comprising a switch-shaping circuit, a voltage-sensing device and a control device is provided. The direct voltage/direct voltage converter has several running modes. Through the control device, one of the running modes is selected to serve as a current operating mode. According to the current operating mode, the control device issues a switching signal for turning the switch-shaping circuit on or off.

Abstract: A direct voltage/direct voltage converter comprising a switch-shaping circuit, a voltage-sensing device and a control device is provided. The direct voltage/direct voltage converter has several running modes. Through the control device, one of the running modes is selected to serve as a current operating mode. According to the current operating mode, the control device issues a switching signal for turning the switch-shaping circuit on or off.

Abstract: The present invention provides an apparatus for increasing the slew rate. The apparatus for increasing the slew rate comprises an operational amplifier and a push-pull output stage. The present invention is operated under the principle of when there is a big difference between the output signal and the input signal, either the pull-up transistor or the pull-down transistor in the push-pull output stage is ON, so that the pushed or pulled current is provided to a load on the output terminal. When the difference between the output signal and the input signal becomes smaller, the operation of the push-pull output stage stops, and the load on the output terminal is directly driven by the operational amplifier at this time. Since the present invention only deploys an operational amplifier and a push-pull output stage and does not deploy error amplifier, the present invention reduces occupied area and saves consumed power, and also avoids offset voltage and oscillation problems.

Abstract: The present invention provides an apparatus for increasing the slew rate. The apparatus for increasing the slew rate comprises an operational amplifier and a push-pull output stage. The present invention is operated under the principle of when there is a big difference between the output signal and the input signal, either the pull-up transistor or the pull-down transistor in the push-pull output stage is ON, so that the pushed or pulled current is provided to a load on the output terminal. When the difference between the output signal and the input signal becomes smaller, the operation of the push-pull output stage stops, and the load on the output terminal is directly driven by the operational amplifier at this time. Since the present invention only deploys an operational amplifier and a push-pull output stage and does not deploy error amplifier, the present invention reduces occupied area and saves consumed power, and also avoids offset voltage and oscillation problems.