Patent ID: 8248340

Claim:
A liquid crystal display, comprising: a liquid crystal panel comprising at least two pixel regions; a mode selector configured to provide a first or second mode selection signal; and a timing controller configured to receive at least two video signal sets and in response to the first or second mode selection signal, control the liquid crystal panel to display a picture corresponding to one of the at least two video signal sets using full-screen displaying or to simultaneously display at least two pictures, each of the at least two pictures corresponding to one of the at least two video signal sets using split-screen displaying; wherein each of the at least two pixel regions corresponds to one of the at least two pictures while using the split-screen displaying, the mode selector comprises a power supply, a first resistor, a second resistor, a mode conversion switch, and an output terminal for outputting the first or second mode selection signal, the mode conversion switch comprises a first contact terminal, a second contact terminal, and a third contact terminal, one end of the first resistor is connected to the first contact terminal, the other end of the first resistor is connected to a positive terminal of the power supply, the first contact terminal is configured for providing the first mode selection signal, one end of the second resistor is connected to the second contact terminal, the other end of the second resistor is connected to a negative terminal of the power supply, a node between the second resistor and the power supply is grounded, the second contact terminal is configured for providing the second mode selection signal, and the third contact terminal is floated, and the output terminal is electrically coupled to one of the first, second, or third contact terminals according to an input instruction.