Abstract: A monitor supporting device includes an arm module, a connection module, and a pivoting module. The connection module includes a main plate body adapted to be secured to an arm-securing portion of a monitor, and a cable-fixing unit connected to the main plate body. The cable-fixing unit includes an extension arm body that defines a constraining space adapted for passage of a plurality of cables therethrough, and that is adapted for allowing a cable tie to tie and secure the cables thereonto. The pivoting module is connected to the arm module and the main plate body, such that the connection module is pivotable relative to the arm module. A junction of the pivoting module and the main plate body is disposed above the extension arm body.

Abstract: A liquid crystal display (LCD) driver has the characteristic that using a voltage-switching control circuit to receive the liquid crystal positive voltage and the segment positive voltage generated by the driving voltage generating circuit. The voltage-switching control circuit respectively switches the liquid crystal positive voltage and the liquid crystal negative voltage to input to the common driver in different frame stages such that only one of the liquid crystal positive voltage and the liquid crystal negative voltage exists at the same time. Therefore, for the choice of the semiconductor manufacturing process for the LCD driver, the process with only half of the voltage-resistant can be chosen according to the original design of the circuit, and the supplying for the voltage needed by the segment driver and the common driver is unchanged.