Abstract: A testing circuit and a test method for a liquid crystal display device are provided. The testing circuit for the liquid crystal display device employs p shorting bars to test subpixels of pixel cells formed on a substrate. The p shorting bars are respectively connected to (p×m+1)th, (p×m+2)th, (p×m+3)th . . . , (p×m+p)th numbered signal paths of the plurality of the signal paths, and when n is odd, p=2×n; when n is even, p=n; with m being zero or a positive integer.

Abstract: A display panel including a substrate, several data driving circuits, at least one first scan driving circuit and at least one second scan driving circuit is provided. The substrate has a display region and at least one non-display region adjacent to the display region. The non-display region has at least one first area, at least one second area, and at least one third area, wherein the first area connects the second and the third area. The data driving circuits are disposed on the first area and are electrically connected in serial. The first scan driving circuit is disposed on the second area. The second scan driving circuit is disposed on the third area.

Abstract: A drive method for a pixel with a first and a second sub-pixel is provided. The method includes the steps of inputting a gray-level signal to the first and the second sub-pixel for forming a first and a second pixel voltage respectively, and providing a first signal and a second signal to the first and the second common electrode to change the first and a second pixel voltage respectively after scan lines located in a special region have been scanned.

Abstract: A liquid crystal display includes a plurality of pixels defined by adjacent scan lines and data lines. Each pixel includes a first sub-pixel defined by the scan line and a first common electrode line and a second sub-pixel defined by the scan line and a second common electrode line. The first common electrode line is connected to at least one of the voltage sources. The second common electrode is electrically connected to two of the voltage sources through a first and a second switch devices. The two switch devices are connected to different scan lines.

Abstract: A method of gamma correction for a liquid crystal display (LCD) having an LCD panel. In one embodiment, the method includes the steps of dividing the LCD panel into N areas along a gate scanning direction, each area having a corresponding gamma and being characterized with a corresponding voltage-transmittance function, and determining grey level voltages of each area for each of a set of grey levels from the corresponding voltage-transmittance function of the area and a desired gamma curve of the LCD panel such that when the grey level voltages are respectively applied to the N areas for a grey level, a light transmittance through each area is substantially uniform and equals to a corresponding brightness.

Abstract: Disclosed is a method for driving a display panel. The display panel includes a plurality of unit pixels and a plurality of switches. The switches are used for controlling the unit pixels to display. The method includes transmitting a plurality of gate signals to the switches for driving the switches. More, the driving method also includes transmitting a plurality of data signals to the switches for providing a plurality of pixel voltages to the unit pixels and providing common voltages to the unit pixels as well as generating the potential differences with the common voltage and the pixel voltages of the unit pixels for controlling the display of the unit pixels by a group time. The total amount of potential differences in each unit pixel in the group time is substantially equal to zero. The group time includes a plurality of driving unit times. In each driving unit time, at least one group of pixels displays. A group of pixels includes a plurality of grayscale levels of brightness.

Abstract: A liquid crystal display and a driving method thereof. A gate driver drives a first pixel of the display via a first scanning line within a frame period including first and second data writing intervals. A first data voltage and a second data voltage are transmitted to the first pixel in the first and second data writing intervals, respectively. After the first data writing interval, a first color light source illuminates the first pixel. After the second data writing interval, a second color light source illuminates the first pixel. In a reset interval between the first and second data writing intervals, a voltage of a common line coupled to a storage capacitor of the first pixel is changed from a first common voltage to a second common voltage so that a voltage of a first liquid crystal capacitor of the first pixel is changed.

Abstract: A driving method applied to a liquid crystal display. First, a first pixel voltage is outputted to a first pixel in a first row of pixels to change a transmittance of the first pixel. Next, a second pixel voltage is outputted to a second pixel in a second row of pixels to change a transmittance of the second pixel. Then, a backlight module is turned on. Next, at a first predetermined time point after the first pixel voltage is outputted, a pixel electrode voltage of the first pixel is adjusted. Finally, at a second predetermined time point after the second pixel voltage is outputted, a pixel electrode voltage of the second pixel is adjusted. The second predetermined time point follows the first predetermined time point.

Abstract: A color filter and a manufacturing method thereof are provided. In the method of the invention, a substrate having a display area and a non-display area is provided. Thereafter, a black matrix is formed over the substrate, wherein black matrix defines the display area into a plurality of sub-pixel areas, and covers the non-display area, which forms an edge of the display area. Then, a color filter unit is formed in each sub-pixel area, and a light shielding layer is formed over the black matrix simultaneously. Accordingly, the shielding layer of the color filter provided by the present invention is capable of effectively reducing the light leakage from the edge of the display area.

Abstract: A method for driving a liquid crystal display is disclosed. A driving voltage corresponding to a gray scale is provided during a first interval of a time period to drive a pixel in response to the gray scale, and a reset voltage responsive to the gray scale is provided during a second interval of the time period.

Abstract: A signal-driving system for constructing gate signals of liquid crystal display (LCD), includes a plural stage of cascaded shift register units. Each stage of shift register unit includes a first pull-up switch unit, which is turned on for outputting a gate pulse on an output of this stage, based on either the first clock signal or the second clock signal; a pull-up driving unit, which is used for providing a driving pulse via a node for driving the first pull-up switch unit; a first pull-down switch unit, which is turned on to connect the output to a low-level voltage source; a second pull-down switch unit, which is turned on to connect said node to the low-level voltage source; a carry buffer unit, which is used for providing a control pulse on the second pull-down switch unit of previous stage, based on either the first clock signal or the second clock signal, and thereby ensuring operation of each stage independent of gate pulse signals outputted from the other stages.

Abstract: A liquid crystal display includes a source driver, a gate driver, a plurality of pixel units, a plurality of detecting circuits, and a decision unit. Each pixel unit includes a switch transistor and a liquid crystal capacitor. When turned on by a scan signal generated by the gate driver, the switch transistor conducts a data signal voltage generated by the source driver to the liquid crystal capacitor, to adjust alignment of liquid crystal molecules. Each detecting circuit is electrically connected to one pixel unit, and includes a first transistor, a second transistor, a third transistor and a sensor unit. The first transistor conducts a constant voltage to the sensor unit when turned on, and generates a dynamic voltage when turned off. Based on the dynamic voltage, the second transistor generates a dynamic current. The third transistor conducts the dynamic current to the decision unit when turned on.

Abstract: A display apparatus comprises a shift register array. The shift register array comprises a plurality of shift registers. At least one shift register comprises a first transistor, a second transistor, a third transistor, and a driving circuit. The gate and the first electrode of the first transistor receive an input signal. The gate of the second transistor is coupled to the second electrode of the first transistor. The second electrode of the second transistor generates an output signal. The first electrode of the second transistor receives a clock signal. The third transistor is used to pull down a voltage level at the gate of the second transistor. The driving circuit determines an on/off status of the third transistor in response to the input signal and the output signal.

Abstract: A pixel unit in the present invention is divided into two sub-pixels. Each sub-pixel includes a thin film transistor, a liquid crystal capacitor and a storage capacitor. The two transistors respectively located in different sub-pixels are connected to different scan lines. One of the two transistors is connected to the data line through another transistor. Therefore, two different pixel voltages are formed in a pixel.

Abstract: A pixel unit in the present invention is divided into two sub-pixels. Each sub-pixel includes a thin film transistor, a liquid crystal capacitor and a storage capacitor. The two transistors respectively located in different sub-pixels are connected to different scan lines. One of the two transistors is connected to the data line through another transistor. Therefore, two different pixel voltages are formed in a pixel.

Abstract: A test circuit for a flat panel display device is provided. The test circuit includes a substrate, a plurality of pixel structures, a plurality of signal lines and a plurality of shorting bar sets. The substrate includes at least one scan side, at least one data side and a pixel area. Each pixel structure formed in the pixel area having n sub-pixels, where n is a positive integer. The signal lines are formed on the substrate, and each signal line is connected to a corresponding sub-pixel. Each shorting bar set is formed on at least one of the at least one scan side and the at least one data side, wherein the shorting bar sets are electrically connected to the signal lines.

Abstract: A color filter and a manufacturing method thereof are provided. In the method of the invention, a substrate having a display area and a non-display area is provided. Thereafter, a black matrix is formed over the substrate, wherein black matrix defines the display area into a plurality of sub-pixel areas, and covers the non-display area, which forms an edge of the display area. Then, a color filter unit is formed in each sub-pixel area, and a light shielding layer is formed over the black matrix simultaneously. Accordingly, the shielding layer of the color filter provided by the present invention is capable of effectively reducing the light leakage from the edge of the display area.

Abstract: A shift register unit includes a plurality of register units electrically coupled in cascade. Each register unit outputs an output pulse according to a first clock signal, a second clock signal and an output pulse of a previous register unit. Each register unit includes a first switch unit, a second switch unit, a third switch unit, a fourth switch unit, and a driving unit. The first switch unit is used for conducting the input pulse to a first node when the first switch is turned on. The second switch unit is used for conducting the output pulse of the register unit according to the first clock signal to an output end when the second switch unit is turned on in response to the input pulse. The third switch unit electrically coupled to a supply end is used for conducting a supply voltage to the output end when the second switch unit is turned off.

Abstract: A liquid crystal display includes a plurality of scan lines arranged in parallel, a plurality of data lines arranged in parallel and crossing the scan lines, and a plurality of switching devices respectively formed in the locations of the scan lines crossing the data lines, the switching devices connected with same scan line are arranged on the two sides of the scan line and are located in the corresponding pixel respectively, wherein each pixel includes two switching devices and one switching device is connected to the corresponding data line through the other switching device.

Abstract: A shift register comprising means for providing a first pair of clock signals, CLK1 and XCLK1, with a first frequency, f1, and a second pair of clock signals, CLK2 and XCLK2, with a second frequency, f2, where the second frequency f2 is different from the first frequency f1, and means for generating a plurality of signals responsive to a start pulse signal, the first pair of clock signals CLK1 and XCLK1, and the second pair of clock signals CLK2 and XCLK2. Each of the plurality of signals is sequentially shifted from the start pulse signal.