公开(公告)号：US20090207123A1

公开(公告)日：2009-08-20

申请号：US12277660

申请日：2008-11-25

申请人： HUN-JOO KIM ,  Jin-Woo Park ,  Young-Suk Ha

发明人： HUN-JOO KIM ,  Jin-Woo Park ,  Young-Suk Ha

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G2320/064

摘要： A backlight driving apparatus and a driving method thereof, in which the backlight driving apparatus includes a driving unit and a controller. The driving unit boosts an input voltage in response to a duty ratio of a control signal and provides the boosted input voltage to an LED array. The controller increases the duty ratio of the control signal in a step-by-step fashion by comparing a preset target value with a sequentially increasing step-setting value if a driving start signal is enabled.

摘要翻译： 背光驱动装置及其驱动方法，其中背光驱动装置包括驱动单元和控制器。 驱动单元响应于控制信号的占空比而提高输入电压，并将升压的输入电压提供给LED阵列。 如果启动启动信号，则通过将预设目标值与顺序增加的步进设定值进行比较，控制器以逐步的方式增加控制信号的占空比。