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1. 发明授权

US07301519B2 STN LCD driver using circuit with fewer capacitors and method therefor 有权
标题翻译： STN LCD驱动器使用电路较少的电容器及其方法
公开(公告)号：US07301519B2
公开(公告)日：2007-11-27
申请号：US10649557
申请日：2003-08-26
申请人： Hyung-seok Kim
发明人： Hyung-seok Kim
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/3614 , G09G3/3622
摘要： An STN LCD driver using a circuit with a reduced number of capacitors for driving voltage stabilization, and a method therefor, are provided. The STN LCD driver includes a driving voltage generating circuit, a common/segment driving circuit, first through third capacitors, and a control circuit. The driving voltage generating circuit generates first through fifth driving voltages to output the generated driving voltages via first through fifth output terminals. The common/segment driving circuit, which is controlled by a driving polarity signal, receives the first through fifth driving voltages and generates a common driving signal and a segment driving signal. The first capacitor is connected between the first output terminal and a ground voltage. The control circuit controls connection of the output terminals and the capacitors in response to the driving polarity signal, in order to reduce the number of the capacitors for driving voltage stabilization.
摘要翻译：提供了使用具有减少数量的用于驱动电压稳定化的电容器的电路的STN LCD驱动器及其方法。 STN LCD驱动器包括驱动电压产生电路，公共/分段驱动电路，第一至第三电容器和控制电路。驱动电压产生电路产生第一至第五驱动电压，以经由第一至第五输出端输出产生的驱动电压。由驱动极性信号控制的公共/段驱动电路接收第一至第五驱动电压，并产生公共驱动信号和段驱动信号。第一电容器连接在第一输出端子和接地电压之间。控制电路响应于驱动极性信号控制输出端子和电容器的连接，以便减少用于驱动电压稳定的电容器的数量。

2. 发明授权

US07154465B2 Multi-line selection driving method for a super-twisted nematic liquid crystal display having low-power consumption 失效
标题翻译：具有低功耗的超扭曲向列型液晶显示器的多线选择驱动方法
公开(公告)号：US07154465B2
公开(公告)日：2006-12-26
申请号：US10738414
申请日：2003-12-17
申请人： Bong-nam Kim , Hyung-seok Kim
发明人： Bong-nam Kim , Hyung-seok Kim
IPC分类号： G09G3/36
CPC分类号： G09G3/3625
摘要： A driving unit for an STN-LCD receives input image data and generates column signal functions for selected row lines according to on/off states of pixels, and row signal functions for the selected row lines according to negative/positive states of row signals. The driving unit determines a dot product value of the column signal function and the row signal function to find a mismatch value between the column signal function and the row signal function, and determines the total number of mismatch values corresponding to the row and column signals to be applied sequentially to the liquid crystal panel. The driving unit generates column signal voltages in a first driving time period T1 determined according to the total number of mismatch values, and applies the column signal voltages in period T1 to the column lines when the row signals are applied respectively to four row lines during the period T1.
摘要翻译：用于STN-LCD的驱动单元接收输入图像数据，并且根据像素的开/关状态产生用于所选行行的列信号功能，并且根据行信号的负/正状态为所选行行生成行信号功能。驱动单元确定列信号函数和行信号函数的点乘积值，以找出列信号函数和行信号函数之间的失配值，并将对应于行和列信号的失配值的总数确定为顺序地施加到液晶面板。驱动单元在根据失配值的总数确定的第一驱动时间段T 1中产生列信号电压，并且当行信号分别施加到四行行时将时段T 1中的列信号电压施加到列线期间T 1。

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