| 摘要 |
An exemplary liquid crystal display ( 20 ) includes a liquid crystal panel, a driving chip ( 200 ) and an external resistor ( 270 ). The driving chip is configured for driving the liquid crystal panel. The driving chip includes a storage circuit ( 210 ) and a voltage generator ( 260 ). The storage circuit includes a memory ( 240 ). The external resistor is connected to the storage circuit and the voltage generator. The voltage generator outputs a voltage, the external resistor divides the voltage into a common voltage. The storage circuit transforms the common voltage to a common voltage parameter, and the memory stores the common voltage parameter. The LCD has high reliability.
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