Abstract: A buffering circuit with reduced power consumption is provided. The output buffering circuit includes first and second amplifier circuits. The first amplifier circuit includes a first input stage and a first output stage both coupled between a first power voltage and a second power voltage lower than the first power voltage, and an assistant discharging unit configured to provide a discharging current flowing from a first output node to a first intermediate power voltage during a discharging operation of the first amplifier circuit. The second amplifier circuit includes a second input stage and a second output stage both coupled between the first power voltage and the second power voltage, and an assistant charging unit configured to provide a charging current flowing from a second intermediate power voltage to a second output node during a charging operation of the second amplifier circuit.

Abstract: A multi-channel integrator includes a first switch, a second switch, and a plurality of integration units. First terminals of the first and second switches receive a first reference voltage. Each of the integration units includes an operational amplifier (OP-AMP), a feedback switch, a third switch, a fourth switch, and a feedback capacitor. A second input terminal of the OP-AMP receives a second reference voltage. Two terminals of the feedback switch are respectively coupled to a first input terminal and an output terminal of the OP-AMP. First terminals of the third switch and the fourth switch are respectively coupled to the first input terminal and the output terminal of the OP-AMP. A first terminal of the feedback capacitor is coupled to the second terminals of the first and the third switches. A second terminal of the feedback capacitor is coupled to the second terminals of the second and the fourth switches.

Abstract: A method for transmitting image data through reduced swing differential signaling (RSDS) transmission interfaces to a driver in a display is provided, in which the image data include a number of pixel values each represented by a number of bits. The method includes the step of: simultaneously transmitting at least two bits of one of the pixel values by a single timing controller in one time period, in which each of the simultaneously transmitted bits is transmitted through a respective data line of the RSDS transmission interfaces.

Abstract: A data transmission method for transmitting data between a timing controller and a source driver of a display and a display using the same are disclosed. The transmission method includes recognizing a start of a blank period of a frame period; sampling de-skew data on a data bus during the blank period based on a data clock; performing a de-skew function by comparing the sampled de-skew data with a predetermined de-skew code and adjusting the data clock; recognizing a start of a data input period of the frame period; and sampling pixel data on the data bus during the data input period based on the adjusted data clock. The display includes a timing controller, a data bus, and a source driver. The source driver is connected to the timing controller via the data bus for performing the data transmission method.

Abstract: A semiconductor device has a chip, a first bump electrode, a conductive wire and a second bump electrode. The chip has at least one contact pad, and the first bump electrode is formed on the contact pad. The conductive wire is disposed on an active surface of the chip and electrically connected to the first bump electrode. The second bump electrode is formed on the conductive wire, and the second bump electrode is not disposed over any contact pad of the chip. In addition, a method for packaging a chip and an IC package are also disclosed.

Abstract: The invention describes a system and method for driving a display device that includes an array of pixels respectively coupled with a plurality of scanning lines along a first direction and a plurality of data lines along a second direction, each of the data lines being adapted to transmit a driving signal that is amplified in a high-driving mode of operation. In one embodiment, the method comprises reading digital data associated with each of a plurality of pixels along one or more scanning line, evaluating a distribution of gray scale levels for pixels coupled along the one or more scanning line based on the content of the digital data, and determining whether the distribution of gray scale levels meets a condition for generating a control signal to disable the high-driving mode of operation.

Abstract: The invention describes a system and method for driving a display device that includes an array of pixels respectively coupled with a plurality of scanning lines along a first direction and a plurality of data lines along a second direction, each of the data lines being adapted to transmit a driving signal that is amplified in a high-driving mode of operation. In one embodiment, the method comprises reading first digital data associated with a first pixel, reading second digital data associated with a second pixel, and based on the content of the first and second digital data determining whether one or more condition for generating a control signal to disable the high-driving mode of operation is satisfied.

Abstract: A source driver receiving data from an external bus is provided. The source driver comprises: a plurality of internal buses; a serial-to-parallel unit, a shift register and a plurality of channels. The serial-to-parallel unit is for receiving the data from the external bus and converting the data into plural display data for transmitting respectively on the internal buses in parallel; the shift register is for outputting shift control signals; and the plurality of channels are for latching data from the internal buses according to the shift control signals; wherein each shift control signal controls at least two channels that correspond respectively to the internal buses.

Abstract: A display, which includes a display panel, a timing controller, and a source driver is provided. The timing controller analyzes gray level distribution of a video data to obtain an analysis result. The source driver is coupled between the display panel and the timing controller for driving the display panel to display a corresponding frame according to a video signal provided by the timing controller, and further the timing controller enables or disables a charge sharing function of the source driver in the display according to the analysis result. As a result, the charge sharing function is enabled optionally during different charge sharing periods, and thus the power consumption and the operation temperature of the source driver could be reduced as compared with the prior art.

Abstract: A data transmitting method for inputting a data signal to an electronic device. The data signal includes first and second sets of data, and the electronic device includes first to fourth receiving units and corresponding first to fourth registers. The transmitting method includes the following steps. First, the first and second receiving units are disabled. Then, the first set of data is inputted to the electronic device through the third and fourth receiving units and stored in the third and fourth registers during a first clock cycle of a clock signal. Thereafter, the second set of data is inputted to the electronic device through the third and fourth receiving units and stored in the third and fourth registers while the first set of data stored in the third and fourth registers is inputted to the first and second registers during a second clock cycle of the clock signal.

Abstract: An interface circuit for data transmission and the method thereof is described. The interface circuit includes a transmitter providing data through first data signals during the data periods corresponding to rising and falling edges of a clock signal, a transition detection unit selectively asserting a detection signal in response to the number of the first data signals having transitions between every two adjacent data periods, a transition reduction unit generating second data signals by outputting the inverted and non-inverted first data signals respectively when the detection signal is asserted and de-asserted, and a receiver restoring the data from the second data signals and the detection signal.

Abstract: A method for transmitting image data in a display is provided. The method includes the steps of: sending first pixel data through a first bus to a source driver; sending second pixel data through a second bus to the source driver; reorganizing the first pixel data and the second pixel data in the source driver; and generating third pixel data according to the reorganization of the first pixel data and the second pixel data for channels in the source driver. A display is also disclosed herein.

Abstract: The present invention discloses an apparatus for driving a display in which each pixels of the display receives a driving voltage and a common voltage, and a luminance of each pixel is determined by a difference between the received driving voltage and the common voltage. The apparatus comprises a plurality of source driver chips, each of which receives a pixel value and generates the driving voltage corresponding to the pixel value according to a plurality of Gamma voltages, wherein at least one of the Gamma voltages is generated by one of the source driver chips.

Abstract: A display comprises a panel, a gate driver and a plurality of source drivers. The panel comprises a plurality of pixels arranged in an array. The gate driver is provided for selectively activating a gate line of the panel. The source drivers, during a line period, receive a plurality of transfer pulses, each of which corresponds to one of the source drivers. The source drivers drive one row of the pixels corresponding to the activated gate line, while triggered by the corresponding transfer pulse, wherein the transfer pulses are not all identical. A method for driving a display is also disclosed herein.

Abstract: A wire-on-array (WOA) flat panel display is provided. The wire-on-array (WOA) flat panel display is characterized in a plurality of high input impedance components between the flexible printed circuit (FPC) board and the corresponding source driver circuits. Each of the high input impedance components is able to receive gamma voltages with little input current and then transmit the gamma voltages to each of the source driver circuit for production of source voltages of little banding effect.

Abstract: A capacitive fingerprint sensor comprises a fingerprint capacitor, a reference capacitor, a first transistor, a second transistor, a comparator and a multiplexer. The fingerprint capacitor has a capacitance that is either a valley capacitance CFV or a ridge capacitance CFR, wherein CFV is smaller than CFR. One end of the reference capacitor CS is connected to the fingerprint capacitor, and the other end is connected to a trigger signal, wherein the trigger signal is initiated only during a precharge phase. The first transistor is configured to control the fingerprint capacitor during a scan line period. The second transistor is configured to precharge the fingerprint and reference capacitors. One end of the comparator is connected to the second transistor. The multiplexer is connected to another input end of the comparator for providing a first voltage VA and a threshold voltage Vth.

Abstract: A driving method and a transreflective display apparatus are provided herein. In the driving method, a plurality of voltage-to-transparency curves are provided. An ambient light intensity of the display apparatus is detected for determining a display mode, wherein the display mode is either a transmissive mode or a reflective mode. Next, one of the voltage-to-transparency curves is selected according to the display mode and the ambient light intensity for driving the display apparatus. Therefore, by referring a proper voltage-to-transparency curve to drive the display apparatus, the display quality of the display apparatus can be enhanced.

Abstract: A capacitive fingerprint sensor comprises a first transistor, a second transistor, a fingerprint capacitor and a third transistor. The fingerprint capacitor has a capacitance that is either a valley capacitance CFV or a ridge capacitance CFR, wherein CFV is smaller than CFR. The first transistor is configured to precharge the fingerprint capacitor. The second transistor is configured to discharge the fingerprint capacitor toward a bias voltage VB. The third transistor is configured to output the voltage of the fingerprint capacitor after discharge.

Abstract: A capacitive fingerprint sensor comprises a fingerprint capacitor, an integrator, a first transistor, a second transistor and a multiplexer. The fingerprint capacitor has a capacitance that is either a valley capacitance CFV or a ridge capacitance CFR, wherein CFV is smaller than CFR. The integrator has a reference capacitor Cfb. The first transistor is configured to control the fingerprint capacitor during a scan line period. The second transistor is configured to precharge the fingerprint capacitor and to redistribute the charges between the fingerprint capacitor and the reference capacitor Cfb. The multiplexer is connected to the integrator for providing a first voltage VA and a second voltage VB, wherein the first voltage VA is greater than the second voltage VB.

Abstract: A capacitive fingerprint sensor comprises a fingerprint capacitor, an integrator, a first transistor, a second transistor and a third transistor. The fingerprint capacitor has a capacitance that is either a valley capacitance CFV or a ridge capacitance CFR, wherein CFV is smaller than CFR. The integrator has a reference capacitor Cfb. The first transistor is configured to control the fingerprint capacitor during a scan line period. The second transistor is configured to discharge the fingerprint capacitor. The third transistor is configured to precharge the fingerprint capacitor and to redistribute the charges between the fingerprint capacitor and the reference capacitor Cfb.