公开(公告)号：US08242990B2

公开(公告)日：2012-08-14

申请号：US12318283

申请日：2008-12-23

申请人： Hongsung Song ,  Woongki Min ,  Yonggi Son ,  Suhyuk Jang

发明人： Hongsung Song ,  Woongki Min ,  Yonggi Son ,  Suhyuk Jang

IPC分类号： G09G3/36

CPC分类号： G09G3/3685 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2310/0205 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2320/0204

摘要： A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a timing signal multiplying circuit generating a first timing signal and a second timing signal whose frequency is higher than a frequency of the first timing signal, a frame counter detecting a multiplied frame period to be driven at the frequency of the second timing signal, a data processing circuit allowing a frequency of digital data output during the multiplied frame period to be higher than a frequency of the digital data output during a frame period except the multiplied frame period, a timing control signal generating circuit generating a polarity control signal for controlling polarities of the digital data, and a polarity control signal inverting circuit that increases a frequency of the polarity control signal during the multiplied frame period to generate an inverse polarity control signal.

摘要翻译： 公开了一种液晶显示器及其驱动方法。 液晶显示器包括产生第一定时信号的定时信号乘法电路和频率高于第一定时信号的频率的第二定时信号，检测要以第二定时信号频率驱动的相乘帧周期的帧计数器 定时信号，允许在相乘的帧周期期间输出的数字数据的频率高于除了相乘的帧周期之外的帧周期期间输出的数字数据的频率的数据处理电路;定时控制信号产生电路，其产生极性控制 用于控制数字数据的极性的信号;以及极性控制信号反相电路，其在倍增的帧周期期间增加极性控制信号的频率，以产生反极性控制信号。

公开(公告)号：US08098221B2

公开(公告)日：2012-01-17

申请号：US12318153

申请日：2008-12-22

申请人： Hongsung Song ,  Woongki Min ,  Yonggi Son ,  Suhyuk Jang

发明人： Hongsung Song ,  Woongki Min ,  Yonggi Son ,  Suhyuk Jang

IPC分类号： G09G3/36

CPC分类号： G09G3/3655 ,  G09G2320/0204 ,  G09G2320/0257

摘要： A liquid crystal display (LCD) capable of improving display quality and a method of driving the same are provided. The LCD comprises an LCD panel including a plurality of data lines and gate lines and liquid crystal cells arranged in a matrix at crossings of the gate lines and the data lines, a driving circuit for supplying a data voltage to the data lines and for supplying a scan pulse to the gate lines, a timing controller for generating a gate start pulse for indicating a start horizontal line in which scanning starts in a one frame period where one screen is displayed, a control clock generator for counting the number of frames using the gate start pulse and for generating a control clock whenever an accumulated count value becomes a multiple of a predetermined value, and a common voltage generating circuit for generating control data of a specific bit based on the control clock and for generating a common voltage whose level varies in stages per predetermined interval using the control data to supply the common voltage to the LCD panel.

摘要翻译： 提供了能够提高显示质量的液晶显示器（LCD）及其驱动方法。 液晶显示器包括一个LCD面板，包括多条数据线和栅极线以及在栅极线和数据线的交叉处以矩阵排列的液晶单元，用于向数据线提供数据电压并用于提供数据线的驱动电路 扫描脉冲到栅极线，定时控制器，用于产生用于指示在显示一个屏幕的一个帧周期内扫描开始的开始水平行的栅极起始脉冲;控制时钟发生器，用于使用该栅极对帧数进行计数 起始脉冲，并且每当累积计数值变为预定值的倍数时产生控制时钟;以及公共电压发生电路，用于基于控制时钟产生特定位的控制数据，并产生其电平变化的公共电压 使用控制数据将预定间隔的级数提供给LCD面板。

公开(公告)号：US08049698B2

公开(公告)日：2011-11-01

申请号：US12003762

申请日：2007-12-31

申请人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

发明人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G2310/0248 ,  G09G2330/021 ,  G09G2330/023 ,  G09G2360/16

摘要： A liquid crystal display includes a timing controller to activate a dynamic charge share control signal to indicate a time at which the gray level of the data voltage is changed from a white gray level to a black gray level and a time at which the polarity of the data voltage is inverted, and to activate a dot inversion control signal for widening a horizontal polarity inversion period of data voltages to be supplied to the data lines when a weakness patterns are input, and a data driving circuit supplying one of a common voltage and a charge share voltage to data lines only when the gray level of data is changed from the white gray level to the black gray level and when the polarity of the data voltage in response to the dynamic charge share control signal.

摘要翻译： 液晶显示器包括定时控制器，用于激活动态电荷共享控制信号，以指示数据电压的灰度级从白色灰度级改变为黑色灰度级的时间，以及时间 数据电压反转，并且激活点反转控制信号，用于在输入弱图案时加宽要提供给数据线的数据电压的水平极性反转周期，以及数据驱动电路，提供公共电压和 只有当灰度级数据从白色灰度级变为黑色灰度级，并且数据电压的极性响应于动态电荷共享控制信号时，才将数据线的电荷共享电压。

公开(公告)号：US08049697B2

公开(公告)日：2011-11-01

申请号：US12003747

申请日：2007-12-31

申请人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

发明人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G2310/0248 ,  G09G2330/021 ,  G09G2330/023 ,  G09G2360/16

摘要： A liquid crystal display includes a liquid crystal display panel including a plurality of data lines, a plurality of gate lines crossing the plurality of data lines, and a plurality of liquid crystal cells, a timing controller to determine gray levels of input digital video data and a time when a polarity of a data voltage to be supplied to the data lines is inverted, and to generate a dynamic charge share control signal when the gray level of the data voltage is changed from a white gray level to a black gray level and the polarity of the data voltage is inverted, a data driving circuit to convert the digital video data from the timing controller into the data voltage, changing the polarity of the data voltage, and supplying any one of a common voltage and a charge share voltage to the data lines in response to the dynamic charge share control signal, and a gate driving circuit to sequentially supply scan pulses to the gate lines under the control of the timing controller.

摘要翻译： 液晶显示器包括：液晶显示面板，包括多条数据线，多条栅极线与多条数据线交叉;以及多个液晶单元，定时控制器，用于确定输入数字视频数据的灰度级;以及 当提供给数据线的数据电压的极性反转时，并且当数据电压的灰度级从白色灰度级变为黑色灰度级时产生动态电荷共享控制信号， 数据电压的极性反转，数据驱动电路将来自定时控制器的数字视频数据转换为数据电压，改变数据电压的极性，并将公共电压和电荷共享电压中的任一个提供给 响应于动态电荷共享控制信号的数据线;以及栅极驱动电路，用于在定时控制器的控制下顺序向扫描脉冲提供扫描脉冲。

公开(公告)号：US20100164985A1

公开(公告)日：2010-07-01

申请号：US12588404

申请日：2009-10-14

申请人： Youngho Kim ,  Suhyuk Jang ,  Songjae Lee

发明人： Youngho Kim ,  Suhyuk Jang ,  Songjae Lee

IPC分类号： G09G3/36 ,  G09G5/00

CPC分类号： G09G3/3614 ,  G09G2320/0204

摘要： A liquid crystal display and a driving method thereof are provided. The liquid crystal display includes a liquid crystal display panel, a register for storing pixel information of a problem pattern and polarity pattern information, a block pattern recognition unit for comparing input data with the problem pattern to count the number of problem patterns contained in the input data and comparing the count value with a first threshold value, a line pattern recognition unit for determining the line containing the problem pattern as a problem line, a frame pattern recognition unit for comparing the number of problem lines with a second threshold value, and determining the frame containing the input data as a problem frame, a polarity control signal generating unit for generating vertical and horizontal polarity control signals, and source drive integrated circuits (ICs) for controlling the vertical and horizontal polarities of data voltages supplied to the data lines.

摘要翻译： 提供了一种液晶显示器及其驱动方法。 液晶显示器包括：液晶显示面板，用于存储问题图案和极性图案信息的像素信息的寄存器;块模式识别单元，用于将输入数据与问题模式进行比较，以对输入中包含的问题模式的数量进行计数 数据并将计数值与第一阈值进行比较，行模式识别单元，用于确定包含问题模式的行作为问题行;帧模式识别单元，用于将问题行的数量与第二阈值进行比较，以及确定 包含作为问题帧的输入数据的帧，用于产生垂直和水平极性控制信号的极性控制信号产生单元和用于控制提供给数据线的数据电压的垂直和水平极性的源极驱动集成电路（IC）。

公开(公告)号：US20090267878A1

公开(公告)日：2009-10-29

申请号：US12318283

申请日：2008-12-23

申请人： Hongsung Song ,  Woongki Min ,  Yonggi Son ,  Suhyuk Jang

发明人： Hongsung Song ,  Woongki Min ,  Yonggi Son ,  Suhyuk Jang

IPC分类号： G09G3/36

CPC分类号： G09G3/3685 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2310/0205 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2320/0204

摘要： A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a timing signal multiplying circuit generating a first timing signal and a second timing signal whose frequency is higher than a frequency of the first timing signal, a frame counter detecting a multiplied frame period to be driven at the frequency of the second timing signal, a data processing circuit allowing a frequency of digital data output during the multiplied frame period to be higher than a frequency of the digital data output during a frame period except the multiplied frame period, a timing control signal generating circuit generating a polarity control signal for controlling polarities of the digital data, and a polarity control signal inverting circuit that increases a frequency of the polarity control signal during the multiplied frame period to generate an inverse polarity control signal.

摘要翻译： 公开了一种液晶显示器及其驱动方法。 液晶显示器包括产生第一定时信号的定时信号乘法电路和频率高于第一定时信号的频率的第二定时信号，检测要以第二定时信号频率驱动的相乘帧周期的帧计数器 定时信号，允许在相乘的帧周期期间输出的数字数据的频率高于除了相乘的帧周期之外的帧周期期间输出的数字数据的频率的数据处理电路;定时控制信号产生电路，其产生极性控制 用于控制数字数据的极性的信号;以及极性控制信号反相电路，其在倍增的帧周期期间增加极性控制信号的频率，以产生反极性控制信号。

公开(公告)号：US20090167664A1

公开(公告)日：2009-07-02

申请号：US12277132

申请日：2008-11-24

申请人： Hongsung SONG ,  Woongki Min ,  Yonggi Son ,  Suhyuk Jang

发明人： Hongsung SONG ,  Woongki Min ,  Yonggi Son ,  Suhyuk Jang

IPC分类号： G09G3/36

CPC分类号： G09G3/3614 ,  G09G2320/0247

摘要： A liquid crystal display and a method for driving the same are disclosed. The liquid crystal display includes a timing controller generating a polarity control signal. A logic inverting period of the polarity control signal during frame periods ranging from an Nth frame period among M frame periods to 2 to 4 frame periods following the Nth frame period is longer than a logic inverting period of the polarity control signal in the other frame periods, where N is an integer equal to or larger than 4 and M is larger than N. The liquid crystal cells in one frame period of the M frame periods are charged to the data voltage whose a polarity is opposite to a polarity of the data voltage in a previous frame period of one frame period.

摘要翻译： 公开了一种液晶显示器及其驱动方法。 液晶显示器包括产生极性控制信号的定时控制器。 在从第M帧周期的第N帧周期到第N帧周期之后的2到4个帧周期的帧周期期间，极性控制信号的逻辑反相周期比其他帧周期中的极性控制信号的逻辑反相周期长 其中N是等于或大于4并且M大于N的整数.M帧周期的一个帧周期中的液晶单元被充电到极性与数据电压的极性相反的数据电压 在一帧周期的前一帧周期内。

公开(公告)号：US20090146935A1

公开(公告)日：2009-06-11

申请号：US12314447

申请日：2008-12-10

申请人： Hong Sung Song ,  Chaeyoul Cho ,  Woongki Min ,  Yonggi Son ,  Suhyuk Jang

发明人： Hong Sung Song ,  Chaeyoul Cho ,  Woongki Min ,  Yonggi Son ,  Suhyuk Jang

IPC分类号： G09G3/36

CPC分类号： G09G3/3696 ,  G09G3/3611 ,  G09G3/3648 ,  G09G5/006 ,  G09G2330/06 ,  G09G2370/08

摘要： The exemplary embodiment relates to a liquid crystal display device. The liquid crystal display panel according to the exemplary embodiment includes: a liquid crystal display panel on which a plurality of data lines cross a plurality of gate lines; a source drive IC that supplies data voltages to the data lines; a gate drive IC that supplies gate pulses to the gate lines; a system board equipped with a scaler that transmits data from the scaler with a first interface specification; an interface board that receives the data according to the first interface specification, and transmitting the data with a second interface specification; and a control board equipped with a timing controller receiving the data in the second interface specification and supplying the data to the source drive IC, and controlling the operating timing of the source drive IC and the gate drive IC; wherein a number of the data transmitting lines required in the second interface specification is less than a number of data transmitting line required in the first interface specification.

摘要翻译： 该示例性实施例涉及一种液晶显示装置。 根据示例性实施例的液晶显示面板包括：多个数据线与多条栅极线交叉的液晶显示面板; 向数据线提供数据电压的源极驱动IC; 栅极驱动IC，其向栅极线提供栅极脉冲; 配备有定标器的系统板，其用第一接口规范从定标器发送数据; 接口板，其根据第一接口规范接收数据，并用第二接口规范发送数据; 以及配备有定时控制器的控制板，其接收第二接口规格中的数据，并将数据提供给源极驱动IC，并控制源极驱动IC和栅极驱动IC的工作时序; 其中在所述第二接口规范中所需的数据传输线的数量少于所述第一接口规范中所需的数据传输线的数目。

公开(公告)号：US20090002302A1

公开(公告)日：2009-01-01

申请号：US12003762

申请日：2007-12-31

申请人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

发明人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G2310/0248 ,  G09G2330/021 ,  G09G2330/023 ,  G09G2360/16

摘要： A liquid crystal display includes a liquid crystal display panel having a plurality of data lines, a plurality of gate lines crossing the plurality of data lines, and a plurality of liquid crystal cells, a timing controller to determine gray levels of input digital video data and a time at which a polarity of a data voltage to be supplied to the data lines is inverted, to activate a dynamic charge share control signal to indicate a time at which the gray level of the data voltage is changed from a white gray level to a black gray level and a time at which the polarity of the data voltage is inverted, to detect weakness patterns in which the data of the white gray level and the black gray level are regularly arranged in the input digital video data, and to activate a dot inversion control signal for widening a horizontal polarity inversion period of data voltages to be supplied to the data lines when the weakness patterns are input, a data driving circuit to convert the digital video data from the timing controller into the data voltage, to convert the polarity of the data voltage, to supply any one of a common voltage and a charge share voltage between a positive data voltage and a negative data voltage to the data lines in response to the dynamic charge share control signal, and to widen the horizontal polarity inversion period of the data voltages in response to the dot inversion control signal, and a gate driving circuit to sequentially supply a scan pulse to the gate lines under the control of the timing controller.

摘要翻译： 液晶显示器包括具有多条数据线的液晶显示面板，与多条数据线交叉的多条栅极线，以及多个液晶单元，用于确定输入数字视频数据的灰度级的定时控制器，以及 要提供给数据线的数据电压的极性反转的时间，激活动态电荷共享控制信号，以指示数据电压的灰度级从白色灰度级变为 黑色灰度级和数据电压的极性反转的时间，以检测在输入的数字视频数据中规则地布置白色灰度级和黑色灰度级的数据的弱模式，并激活点 反转控制信号，用于在输入弱图案时加宽要提供给数据线的数据电压的水平极性反转周期;数据驱动电路，用于转换数字视频da ta从时序控制器转换成数据电压，以转换数据电压的极性，以响应于数据线向数据线提供正数据电压和负数据电压之间的公共电压和电荷共享电压中的任何一个 动态电荷共享控制信号，并且响应于点反转控制信号而加宽数据电压的水平极性反转周期;以及栅极驱动电路，在定时控制器的控制下，顺序地将栅极线提供扫描脉冲。

公开(公告)号：US09275590B2

公开(公告)日：2016-03-01

申请号：US12588404

申请日：2009-10-14

申请人： Youngho Kim ,  Suhyuk Jang ,  Songjae Lee

发明人： Youngho Kim ,  Suhyuk Jang ,  Songjae Lee

IPC分类号： G09G3/36

CPC分类号： G09G3/3614 ,  G09G2320/0204

摘要： A liquid crystal display and a driving method thereof are provided. The liquid crystal display includes a liquid crystal display panel, a register for storing pixel information of a problem pattern and polarity pattern information, a block pattern recognition unit for comparing input data with the problem pattern to count the number of problem patterns contained in the input data and comparing the count value with a first threshold value, a line pattern recognition unit for determining the line containing the problem pattern as a problem line, a frame pattern recognition unit for comparing the number of problem lines with a second threshold value, and determining the frame containing the input data as a problem frame, a polarity control signal generating unit for generating vertical and horizontal polarity control signals, and source drive integrated circuits (ICs) for controlling the vertical and horizontal polarities of data voltages supplied to the data lines.

摘要翻译： 提供了一种液晶显示器及其驱动方法。 液晶显示器包括：液晶显示面板，用于存储问题图案和极性图案信息的像素信息的寄存器;块模式识别单元，用于将输入数据与问题模式进行比较，以对输入中包含的问题模式的数量进行计数 数据并将计数值与第一阈值进行比较，行模式识别单元，用于确定包含问题模式的行作为问题行;帧模式识别单元，用于将问题行的数量与第二阈值进行比较，以及确定 包含作为问题帧的输入数据的帧，用于产生垂直和水平极性控制信号的极性控制信号产生单元和用于控制提供给数据线的数据电压的垂直和水平极性的源极驱动集成电路（IC）。