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公开(公告)号：EP1441326A1
公开(公告)日：2004-07-28
申请号：EP02802023.8
申请日：2002-10-17
CPC分类号： G09G5/008 , G09G3/3648 , G09G5/005 , G09G5/006 , G09G2300/0486 , G09G2300/0491 , G09G2310/0205 , G09G2310/061 , G09G2320/0247 , G09G2320/0261 , G09G2340/0421
摘要： A frequency converting section (101), which is included in a liquid crystal display apparatus, generates an output video signal by inserting one non-image signal, which is to be concurrently written into pixels on L (L is an integer equal to or greater than two) gate lines of the liquid crystal panel, for one line, between image signals composing an input video signal, for corresponding L lines, and adjusting a number of horizontal scanning periods of the output video signal in a vertical blanking period so that a number of horizontal scanning periods composing one frame period is (L+1)×(2N+1) (N is an integer). Thus, when anti-back-transition driving is performed using a liquid crystal panel in OCB mode, it is possible to minimize increase in a driving frequency, prevent irregularity of brightness caused by AC driving of the liquid crystal panel, and reduce a cost.
摘要翻译： 包括在液晶显示装置中的频率转换部分（101）通过将要被同时写入的一个非图像信号插入L上的像素（L是等于或大于0的整数）来产生输出视频信号 对于一行，在构成输入视频信号的图像信号之间，对于相应的L行，并且在垂直消隐周期中调整输出视频信号的水平扫描周期的数量，使得液晶面板的两条栅极线 组成一个帧周期的水平扫描周期数是（L + 1）×（2N + 1）（N是整数）。 因此，在OCB模式下使用液晶面板进行防逆转驱动的情况下，能够使驱动频率的增加最小化，防止由液晶面板的AC驱动引起的亮度不均匀，并且降低成本。
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公开(公告)号：EP1382993A8
公开(公告)日：2004-03-31
申请号：EP02777874.5
申请日：2002-10-18
CPC分类号： G09G3/3648 , G02F1/1395 , G09G3/3677 , G09G2300/0486 , G09G2300/0491 , G09G2320/041
摘要： A liquid crystal display apparatus is provided with a detecting section (108) for detecting a value of a parameter that causes fluctuations in a back transition occurrence condition; a calculating section (106) for determining, in accordance with the detection value of the detecting section, at least one of a ratio of an time period of applying a high voltage with respect to one frame period, the high voltage being applied to the liquid crystal panel in order to prevent back transition, a magnitude of the high voltage, and an applied voltage corresponding to white display; and a controller (104) for alternately outputting a video signal and a non-image signal for applying the high voltage and driving the liquid crystal panel on a condition in accordance with the determination result of the calculating section. With this, it is possible to always display video irrespectively of fluctuation in the back transition occurrence condition.
摘要翻译： 本发明提供一种液晶显示装置，该液晶显示装置具备检测部，该检测部用于检测引起反转过渡发生条件的变动的参数的值; 计算部分（106），用于根据检测部分的检测值确定施加高电压的时间段相对于一个帧时段的比率中的至少一个，高电压施加于液体 以防止背面转变，高电压的大小以及与白色显示对应的施加电压; 以及控制器（104），用于交替地输出用于施加高电压的视频信号和非图像信号，并根据计算部分的确定结果在条件下驱动液晶面板。 由此，可以始终显示视频，而不管后回归发生条件的波动。
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