| 摘要 |
A method and apparatus for controlling at least one transmission line in a liquid crystal display includes at least one transmission gate. The liquid crystal display includes a plurality of pixels, and each pixel includes a thin film transistor. At least one thin film transistor is connected to the transmission line. The transmission gate has first and second gates, an input and an output. The input is connected to the transmission line. The transmission gate transmits when one of a first voltage of said first gate is greater than a voltage of said input and a second voltage of said second gate is less than said voltage of said input. A first external terminal is connected to the first gate, a second external terminal is connected to the second gate, and a common external terminal is connected to the output of the transmission gate. When the first and second external terminals apply a floating potential, static electricity generated in the transmission line discharges through the transmission gate to the third external terminal. When a low and high voltage are respectively applied to the first and second external terminals, the transmission gate effectively isolates the transmission line. Alternatively, by applying a high and low voltage, respectively, to the first and second external terminals, the transmission line can be pre-charged via the transmission gate with a voltage applied to the common external terminal.
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