摘要:
A common-voltage compensation circuit functions to provide a crosstalk interference suppressing mechanism for use in a liquid crystal display having a liquid-crystal capacitor and a storage capacitor. The compensation circuit includes a buffer for receiving a preliminary common voltage, a current/voltage converter, a high-pass filter and a ripple-voltage inverter. The current/voltage converter is utilized for generating a liquid-crystal capacitor common voltage furnished to the liquid-crystal capacitor according to an output current of the buffer. The high-pass filter performs a high-pass filtering operation on the liquid-crystal capacitor common voltage for extracting a ripple voltage. The ripple-voltage inverter is employed to generate a storage capacitor common voltage furnished to the storage capacitor through performing an inverting operation on the ripple voltage based on the preliminary common voltage. The ripple voltage of the storage capacitor common voltage has a phase opposite to that of the liquid-crystal capacitor common voltage for suppressing crosstalk interference.
摘要:
A common-voltage compensation circuit functions to provide a crosstalk interference suppressing mechanism for use in a liquid crystal display having a liquid-crystal capacitor and a storage capacitor. The compensation circuit includes a buffer for receiving a preliminary common voltage, a current/voltage converter, a high-pass filter and a ripple-voltage inverter. The current/voltage converter is utilized for generating a liquid-crystal capacitor common voltage furnished to the liquid-crystal capacitor according to an output current of the buffer. The high-pass filter performs a high-pass filtering operation on the liquid-crystal capacitor common voltage for extracting a ripple voltage. The ripple-voltage inverter is employed to generate a storage capacitor common voltage furnished to the storage capacitor through performing an inverting operation on the ripple voltage based on the preliminary common voltage. The ripple voltage of the storage capacitor common voltage has a phase opposite to that of the liquid-crystal capacitor common voltage for suppressing crosstalk interference.
摘要:
A timing control method and device for LCD panel is provided. The timing control device comprises a mode selection unit storing timing parameters corresponding to resolutions of the LCDs, with the timing parameters updateable; a video device outputting a video signal; and a logic unit receiving the video signal and fetching corresponding timing parameters according to a resolution of the video signal and outputting a control signal according to the timing parameter.
摘要:
A timing controller (TCON) for use in flat panel displays to dynamically tune the display parameters thereof. The TCON comprises a bus master coupled to a bus and a register for configuring the register with a default value, and a bus slave coupled to an external interface for input of a custom value to configure the register, thereby rendering display parameters dynamically tunable.
摘要:
A water faucet includes a lower upright pipe integrally formed by a working process, and an upper upright pipe mounted on an upper portion of the lower upright pipe and formed by cutting a hollow pipe. Thus, the upper upright pipe is formed directly by cutting a hollow pipe, so that the upper upright pipe is made easily and rapidly, thereby decreasing the costs of fabrication, shortening the manufacturing time, simplifying the working process, and enhancing the working efficiency.
摘要:
A liquid crystal display (LCD) includes a display panel, an adjusting circuit, and a driving circuit. The display panel includes a common electrode. The adjusting circuit is electrically connected with the common electrode. According to the voltage distribution on the common electrode, the adjusting circuit outputs a distribution parameter. The driving circuit receives the distribution parameter and drives the display panel according to the distribution parameter. The adjusting circuit further includes a voltage comparator and a compensating circuit. The voltage comparator is used for measuring the voltage difference between two terminals of the common electrode. The compensating circuit is for obtaining the distribution parameter according to the voltage difference
摘要:
A method for driving a display panel includes generating data signals to drive pixels in the display panel. The pixels in the display panel are arranged in a matrix. In addition, the voltage values of the data signals are adjusted to render a sum of voltage values of the data signals in a unit area as zero.
摘要:
A method for driving a display panel includes generating data signals to drive pixels in the display panel. The pixels in the display panel are arranged in a matrix. In addition, the voltage values of the data signals are adjusted to render a sum of voltage values of the data signals in a unit area as zero.