公开(公告)号：US20130342434A1

公开(公告)日：2013-12-26

申请号：US13607782

申请日：2012-09-09

申请人： Chien-Chou Chen ,  Yu-Nan Huang

发明人： Chien-Chou Chen ,  Yu-Nan Huang

IPC分类号： G09G3/36

CPC分类号： G09G3/342 ,  G09G2310/0237 ,  G09G2320/0247 ,  G09G2320/0257

摘要： A method of reducing residual images of a liquid crystal display device includes generating multiple pulse width modulation signals corresponding to display blocks of a liquid crystal panel in turn; generating multiple driving signals corresponding to the display blocks according to the pulse width modulation signals; and correspondingly providing backlight to the display blocks according to the driving signals. During each frame period of the liquid crystal panel, each pulse width modulation signal has a first fixed width pulse voltage and a second fixed width pulse voltage. A period between a beginning of the first fixed width pulse voltage and an end of the second fixed width pulse voltage is longer than or equal to 16 milliseconds minus a predetermined time. A period between the end and a beginning of a first fixed width pulse voltage of a next frame period is shorter than or equal to the predetermined time.

摘要翻译： 降低液晶显示装置的残留图像的方法包括依次生成与液晶面板的显示块相对应的多个脉宽调制信号; 根据所述脉冲宽度调制信号产生对应于所述显示块的多个驱动信号; 并根据驱动信号相应地向显示块提供背光。 在液晶面板的每个帧周期期间，每个脉冲宽度调制信号具有第一固定宽度脉冲电压和第二固定宽度脉冲电压。 第一固定宽度脉冲电压的开始与第二固定宽度脉冲电压的结束之间的时间长于或等于16毫秒减去预定时间。 下一帧周期的第一固定宽度脉冲电压的结束和开始之间的时间段短于或等于预定时间。