Abstract: A liquid crystal display (LCD) device with reduced power consumption is provided with a plurality of data lines, a plurality of gate lines, and at least one demultiplexer. Each demultiplexer can comprise a plurality of switches respectively connected to the corresponding data lines and controlled by a plurality of clock signals and configured to receive an image signal, and selectively output the image signal to one of the data lines via the switches. During a driving period, one of the gate lines can be asserted, and the switches can be turned on simultaneously, then only the first one of the switches remains turned on to transmit the image signal to the corresponding data line, and then the first one of the switches are turned off and the other switches is sequentially turned on one at a time to transmit the image signal to the corresponding data lines.

Abstract: A method for driving a passive matrix organic light emitting diode (PMOLED) is provided. A pulse width modulation (PWM) constant current is provided to OLED pixels connected to a segment of a PMOLED array without voltage pre-charging the segment. Then, an offset value corresponding to missing gray scales of the OLED pixel is determined. According to the missing gray scales, the gray scales of the OLED pixel are rescaled starting from the offset. The OLED pixel is thus driven by a compensated PWM constant current having the rescaled gray scales during each horizontal line period.

Abstract: A gate driving apparatus for driving a pixel array on a panel. The apparatus includes a driver chip having a first transistor with a gate coupled to receive a Nth gate driving signal, a source coupled to receive a first voltage and a drain coupled to a Nth scan line of the pixel array, and a driving circuit formed on the panel, providing a second voltage to the Nth scan line when the first transistor in the driver chip is turned off by the Nth gate driving signal and providing the first voltage to the Nth scan line when the first transistor is turned on by the Nth gate driving signal.

Abstract: The present invention relates to a driving method for cholesteric liquid crystal display. A plurality of pixels of the display are controlled by a plurality of row drivers and a plurality of column drivers. According to the method of the invention, firstly, a DC input voltage or a non-symmetric AC input voltage is applied to the row drivers and the column drivers so that the voltage of the pixel is larger than a withstand voltage of the drivers. Then, an initial column signal and an initial row signal are respectively supplied by the corresponding column driver and row driver so as to initialize the corresponding pixel. The polarity of the initial column signal is different from that of the initial row signal. Because the initial row signal minus the initial column signal equals the signal of the pixel, the amplitude of the signal applied to the pixel can be increased.

Abstract: The invention relates to a 2D YC separation device and YC separation system for separating a composite signal into a luma signal (Y) and a chroma signal (C). Firstly, the 2D YC separation device utilizes a low-pass filter to separate the composite signal into a low-frequency composite signal and a high-frequency composite signal. The low-frequency composite signal is a low-frequency luma signal. A 2D comb filter is utilized to separate the high-frequency composite signal into a high-frequency luma signal and the chroma signal. The luma signal is equal to the low-frequency luma signal plus the high-frequency luma signal. Therefore, the 2D YC separation device of the present invention can perfectly separate the composite signal so as to obtain a better luma signal and chroma signal. The YC separation system of the present invention further comprises a 3D YC separation device and a motion detection device, so as to obtain a precise luma signal and chroma signal.

Abstract: This invention provides a method and computer-readable medium for detecting flesh-tone regions in pictures, images, and videos. First, a flesh-tone axis is defined in a color space coordinate system, the flesh-tone axis passing through both the center of a flesh-tone region and the origin of the color space coordinate system. A perpendicular point, is then calculated on the flesh-tone axis as being the point having the shortest distance to an input pixel. A first distance and a second distance are then calculated based on the coordinates of the input pixel, the perpendicular point and the center of the flesh-tone region. The determination as to whether the input pixel is in the flesh-tone region can be made based on the first distance and second distance.

Abstract: A luminescent display device is disclosed. The luminescent display device is comprised of an array of pixels, a first driving chip and a second driving chip. The array of pixels is comprised of columns and rows of pixels. The first driving chip is connected a first pixel of the array of pixels, and the second driving chip is connected to a second pixel of the array of pixels. The second pixel is adjacent to the first pixel. The first driving chip is not connected to all pixels in a row of the at least one row of pixels.

Abstract: The present invention relates to a data driving system and method for driving a panel. The data driving system comprises: a gamma voltage supply and a D/A converter. The gamma voltage supply produces a plurality of gamma voltages. The D/A converter receives the gamma voltages, a first pixel value and a second pixel value, and converts the first pixel value and the second pixel value to a corresponding gamma voltage in the gamma voltages. When the D/A converter converts the first pixel value, the gamma voltages have a first polarity offset. When the D/A converter converts the second pixel value, the gamma voltages have a second polarity offset. Because the data driving system of the invention periodically switches the first polarity offset and the second polarity offset of the gamma voltage supply, an offset in the driving voltage is eliminated by the first polarity (positive) offset and the second polarity (negative) offset in space and time. Therefore, there is no band mura in the panel.

Abstract: The invention relates to a reset device for a scan driver. The scan driver is used for driving a control circuit of a display. The reset device comprises: a first input terminal, a second input terminal and a reset circuit. The first input terminal receives a first input voltage. After the first input voltage inputs to the first input terminal, the second input terminal receives a second input voltage. The second input voltage has a temporary section and a stable section. At the stable section, the second input voltage is larger than the first input voltage. When the first input terminal receives the first input voltage, the reset circuit outputs a reset signal to the scan driver. When the second input voltage is larger than a threshold value at the temporary section, the reset circuit clears the reset signal. According to the reset device of the invention, the scan driver maintains at a reset state so as to prevent that outputs of the scan driver to be at high level at the same time of supplying power.

Abstract: A circuit for driving a display panel comprises a source driving circuit having a plurality of driving units for driving the display panel according to display data; at least one of the driving units has a buffer and a switch circuit wherein the buffer includes an input terminal and an output terminal, and the switch circuit is coupled to the buffer and used for selectively and electrically connecting the output terminal of the buffer and the display panel, electrically connecting the input terminal of the buffer and the display panel, or electrically disconnecting the buffer and the display panel. The present invention also provides a method for driving a display panel.

Abstract: The invention is a driving apparatus and circuit for efficiently converting a direct current (DC) signal into an alternating current (AC) signal to drive a fluorescent lamp. A semi class E configuration which utilizes only one transistor is employed in the invention. The invention comprises a power transistor, a transformer wherein a primary winding is used as a load for the power transistor and a secondary winding is used to transfer energy to the load for the driving apparatus, i.e. the CCFL tube, and control means which extracts the frequency and current of the power transistor and corrects the deviation between the frequency of the power transistor and that of the control means.

Abstract: A triple operation voltage device including a first type substrate, a high voltage (HV) first type well, a second type well, a low voltage (LV) device well, and a middle voltage (MV) device well is provided. The HV first type well is disposed inside the first type substrate. The second type well is disposed inside the first type substrate to separate the HV first type well from the first type substrate. The LV device well and the MV device well are separately disposed inside the HV first type well by the separation of the HV first type well. The triple operation voltage device assists in reducing the space between the LV device well and the MV device well and improving the integration of integrated circuits.

Abstract: An output device for outputting an output signal. The output device comprises an amplifying unit and a control unit. The amplifying unit has a first input terminal, a second input terminal, and an output terminal outputting the output signal, wherein the amplifying unit is configured with a feedback loop. The control unit configures in the feedback loop and controlled by a control signal. The control unit turns off the feedback according to the control signal for a first period, and the control unit turns on the feedback according to the control signal after the first period.

Abstract: A liquid crystal display (LCD) panel comprises a first substrate; a first electrode layer; a colour filter film comprising red, blue and green filter layers; a second substrate; a liquid crystal layer; and a second electrode layer. The first electrode layer is disposed on the first substrate and the colour filter film is disposed on the first electrode layer, and the liquid crystal layer is disposed between the colour filter film and the second substrate. According to the present invention, colour filter film with a high dielectric constant (i.e. larger than 3) is employ to effectively increase voltage of the liquid crystal layer to effectively promote the contrast of images displayed by the LCD panel.

Abstract: A pixel element and a liquid crystal display with discharge function are disclosed. In each of the pixel elements of the liquid crystal display, a transistor is disposed between the common electrode and the pixel electrode. The transistor will be turned on by a discharge signal sent from the master control unit of the liquid crystal display when the liquid crystal display is turned on or turned off, so as to provide the same common voltage to both the common electrode and the pixel electrode. Therefore, the positive and negative charges accumulated in the common electrode and the pixel electrode can be removed and the liquid crystal display is well protected.

Abstract: The invention relates to a substrate with slot. The substrate of the invention comprises an active surface and a plurality of metal plates. The metal plates are formed on the active surface. Each metal plate has a first surface and a second surface. The first surface is connected to the active surface. At least one metal plate has at least one slot formed on the second surface. Therefore, according to the substrate with slot of the invention, a resin for connecting a chip and the metal plates can entirely seal sides and corners of the chip so as to prevent water or dust from entering the chip and protect the chip.

Abstract: A flash memory structure comprises a semiconductor substrate, a source region, a drain region, a first insulating dielectric layer, a floating gate, a second insulating dielectric layer, and a control gate. The semiconductor substrate has a first top surface and a second top surface that is lower than the first top surface. The source region and the drain region are respectively in the second top surface and the first top surface of the semiconductor substrate, and the semiconductor substrate connecting the source region and the drain region is a vertical channel region. The whole channel region is covered by the first insulating dielectric layer, the floating gate, the second insulating dielectric layer, and the control gate in turn.

Abstract: The present invention relates to a driving method for cholesteric liquid crystal display. A plurality of pixels of the display are controlled by a plurality of row drivers and a plurality of column drivers. According to the method of the invention, firstly, a DC input voltage or a non-symmetric AC input voltage is applied to the row drivers and the column drivers so that the voltage of the pixel is larger than a withstand voltage of the drivers. Then, an initial column signal and an initial row signal are respectively supplied by the corresponding column driver and row driver so as to initialize the corresponding pixel. The polarity of the initial column signal is different from that of the initial row signal. Because the initial row signal minus the initial column signal equals the signal of the pixel, the amplitude of the signal applied to the pixel can be increased.

Abstract: A source driver for LCD devices, used for driving at least one data line, comprises an input for receiving a predetermined voltage; an output electrically being connected to the data line and having an output voltage; a voltage clamping circuit for clamping the output voltage within a predetermined voltage range; a first differential amplifier for increasing the clamped output voltage toward the predetermined voltage; and a second differential amplifier for decreasing the clamped output voltage toward the predetermined voltage. The present invention also provides a source driving method for LCD devices.

Abstract: A liquid crystal on silicon panel. The liquid crystal on silicon panel includes a lower and upper substrate, a liquid crystal sealed between the lower and the upper substrate, a plurality of color pixels disposed on the lower substrate and separated from each other by gaps, each color pixel comprising a pixel electrode on the lower substrate and a color filter on the pixel electrode, and a photo-resist material.