Patent ID: 9153191
Filing Date: 2015-10-06
Classification: G09G

Abstract:
1. A power management circuit for a liquid crystal display device, comprising: one or more power generating circuits, for receiving one or more input voltages and generating one or more output voltages, respectively; a gate pulse modulation circuit, coupled between a gate high-level voltage source and a discharging control terminal, for generating a gate control signal; and a discharging controller, coupled to the discharging control terminal, for providing a discharging path for the gate pulse modulation circuit, wherein one of the gate pulse modulation circuit and the discharging controller is further coupled to a power supply such that the gate pulse modulation circuit discharges to the power supply to recycle discharges to the power supply for reutilization during a gate discharging period, and the power supply is one of the one or more input voltages and the one or more output voltages and is not a ground level.