Abstract: A Gamma curve correction method for an LCD sets a ground potential of the LCD as a common voltage and adjusts at least one of a plurality of positive Gamma voltages and a plurality of negative Gamma voltages of the LCD such that the central voltage value of a Gamma curve established by the positive Gamma voltages and the negative Gamma voltages becomes closer to the common voltage. As a result, flickers existing in the images of the LCD are improved.

Abstract: A Gamma curve correction method for an LCD sets a ground potential of the LCD as a common voltage, and adjusts at least one of a plurality of positive Gamma voltages and a plurality of negative Gamma voltages of the LCD such that the central value of a Gamma curve established by the positive Gamma voltages and the negative Gamma voltages becomes closer to the common voltage. As a result, flickers existing in the images of the LCD are improved.

Abstract: A Gamma curve correction method for an LCD sets a ground potential of the LCD as a common voltage, and adjusts at least one of a plurality of positive Gamma voltages and a plurality of negative Gamma voltages of the LCD such that the central value of a Gamma curve established by the positive Gamma voltages and the negative Gamma voltages becomes closer to the common voltage. As a result, flickers existing in the images of the LCD are improved.

Abstract: The present invention discloses a multipurpose half bridge signal output circuit. The multipurpose half bridge signal output circuit is capable of selectively operating under a charge sharing mode or a gate pulsing modulation mode. The multipurpose half bridge signal output circuit includes: a first output pin; a second output pin; a first circuit zone having a first common end coupled to the first output pin; and a second circuit zone having a second common end coupled to the second output pin.

Abstract: The present invention discloses a multipurpose half bridge signal output circuit. The multipurpose half bridge signal output circuit is capable of selectively operating under a charge sharing mode or a gate pulsing modulation mode. The multipurpose half bridge signal output circuit includes: a first output pin; a second output pin; a first circuit zone having a first common end coupled to the first output pin; and a second circuit zone having a second common end coupled to the second output pin.

Abstract: The present invention discloses a power supply circuit with adaptively enabled charge pump. The power supply circuit includes: a buck switching regulator switching at least one power switch therein to convert an input voltage to a middle voltage according to a control signal; a charge pump coupled to the buck switching regulator, wherein when the charge pump is enabled, the charge pump boosts the middle voltage to provide an output voltage higher than the middle voltage, and when the charge pump is disabled, the middle voltage is supplied as the output voltage; and a controller generating the control signal to control the switching regulator, and determining to enable or disable the charge pump according to a level of the input voltage.