公开(公告)号：US09030453B2

公开(公告)日：2015-05-12

申请号：US13201989

申请日：2010-01-29

申请人： Hyun Ho Cho ,  Young Icc Jung ,  Young Suk Son ,  Joon Ho Na ,  Hyung Seog Oh ,  Dae Seong Kim ,  Dae Keun Han

发明人： Hyun Ho Cho ,  Young Icc Jung ,  Young Suk Son ,  Joon Ho Na ,  Hyung Seog Oh ,  Dae Seong Kim ,  Dae Keun Han

IPC分类号： G06F3/038 ,  G09G5/00 ,  G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G2330/021

摘要： An LCD driving circuit includes a first buffer configured to have a terminal for a first voltage, a terminal for a second voltage and a terminal for an intermediate voltage between the first voltage and the second voltage, and be driven in a range from the first voltage to the intermediate voltage; and a second buffer configured to have a terminal for the first voltage, a terminal for the second voltage and a terminal for the intermediate voltage, and be driven in a range from the intermediate voltage to the second voltage. The terminal for the intermediate voltage of the first buffer and the terminal for the intermediate voltage of the second buffer are connected with each other, and the first voltage is a highest voltage, the second voltage is a lowest voltage, and the intermediate voltage is in a range from the first voltage to the second voltage.

摘要翻译： LCD驱动电路包括：第一缓冲器，被配置为具有用于第一电压的端子，用于第二电压的端子和用于第一电压和第二电压之间的中间电压的端子，并且在从第一电压 到中间电压; 以及第二缓冲器，被配置为具有用于第一电压的端子，用于第二电压的端子和用于中间电压的端子，并且在从中间电压到第二电压的范围内被驱动。 第一缓冲器的中间电压的端子和第二缓冲器的中间电压的端子彼此连接，第一电压为最高电压，第二电压为最低电压，中间电压为 从第一电压到第二电压的范围。

公开(公告)号：US08841927B2

公开(公告)日：2014-09-23

申请号：US13287607

申请日：2011-11-02

申请人： Yong Sung Ahn ,  Jung Min Choi ,  Yong Suk Kim ,  Hyung Seog Oh

发明人： Yong Sung Ahn ,  Jung Min Choi ,  Yong Suk Kim ,  Hyung Seog Oh

IPC分类号： G01R27/26 ,  G06F3/044 ,  G01R23/20 ,  G06F3/041

CPC分类号： G06F3/044 ,  G06F3/0416

摘要： A touch sensing circuit detects a difference in variation of coupling capacitances between mutually adjacent driving electrodes through the use of a differential amplifier, and senses whether or not a touch is made on a touch screen panel, thereby being capable of removing display noise.

摘要翻译： 触摸感测电路通过使用差分放大器检测相互相邻的驱动电极之间的耦合电容的变化差异，并且感测是否在触摸屏面板上进行触摸，从而能够去除显示噪声。

公开(公告)号：US08638164B2

公开(公告)日：2014-01-28

申请号：US13062652

申请日：2009-09-04

申请人： Young Suk Son ,  Yong Sung Ahn ,  Hyun Ja Cho ,  Hyung Seog Oh ,  Dae Keun Han

发明人： Young Suk Son ,  Yong Sung Ahn ,  Hyun Ja Cho ,  Hyung Seog Oh ,  Dae Keun Han

IPC分类号： H03F1/02

CPC分类号： G09G3/20 ,  G09G2310/0248 ,  G09G2310/0254 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2330/023

摘要： An amplifier and a display driving circuit. The amplifier includes an input stage, a bias stage and an output stage. The input stage determines voltage levels of two nodes in correspondence to two input voltages received in response to a first bias voltage, and includes four path selecting switches, two input transistors and one bias transistor. The bias stage generates two class AB output voltages which correspond to the voltage levels of the two nodes, and includes current mirrors, ten path selecting switches, class AB bias circuits and two bias transistors. The output stage generates an output voltage VOUT that corresponds to the two class AB output voltages, and includes two coupling capacitors and two push-pull transistors. The plurality of path selecting switches operate by one signal of a first path selecting signal and a second path selecting signal that are exclusively enabled with respect to each other.

摘要翻译： 放大器和显示驱动电路。 放大器包括输入级，偏置级和输出级。 输入级确定对应于响应于第一偏置电压接收的两个输入电压的两个节点的电压电平，并且包括四个路径选择开关，两个输入晶体管和一个偏置晶体管。 偏置级产生对应于两个节点的电压电平的两个AB类输出电压，并且包括电流镜，十路径选择开关，AB类偏置电路和两个偏置晶体管。 输出级产生对应于两个AB类输出电压的输出电压VOUT，并且包括两个耦合电容器和两个推挽晶体管。 多个路径选择开关由第一路径选择信号和第二路径选择信号的一个信号进行操作，第一路径选择信号和第二路径选择信号彼此独占地启用。

公开(公告)号：US20120044227A1

公开(公告)日：2012-02-23

申请号：US12909272

申请日：2010-10-21

申请人： Yong-Sung Ahn ,  Jung-Min Choi ,  Sang-Rok Cha ,  Dae-Keun Han ,  Hyung-Seog Oh ,  Yong-Suk Kim

发明人： Yong-Sung Ahn ,  Jung-Min Choi ,  Sang-Rok Cha ,  Dae-Keun Han ,  Hyung-Seog Oh ,  Yong-Suk Kim

IPC分类号： G09G5/00 ,  G09G3/36

CPC分类号： G09G3/3696 ,  G09G3/3677 ,  G09G2330/02 ,  G09G2330/06

摘要： A power supply circuit of a liquid crystal display device includes a first positive polarity charge charging unit including a first capacitor connected to positive and negative power terminals through switches to charge a charge, a second positive polarity charge charging unit including a second capacitor connected to the positive power terminal and a ground terminal through switches to charge a charge, a first positive polarity charge loading unit loading the charge supplied through the positive power terminal to a negative polarity terminal, a second positive polarity charge loading unit loading the charge charged in the first capacitor to a negative polarity terminal, a third positive polarity charge loading unit loading the charge charged in the second capacitor, and a positive polarity charge charging/loading control unit outputting charging control signals with a same phase to the switches, and periodically or irregularly changing durations of the charging and loading control signals.

摘要翻译： 液晶显示装置的电源电路包括第一正极性充电充电单元，其包括通过开关对正电源端子和负电源端子连接的第一电容器进行充电;第二正极性充电单元，包括连接到 正电源端子和接地端子，通过开关对电荷充电，第一正极性电荷负载单元将通过正电源端子提供的电荷负载到负极端子;第二正极性电荷负载单元，负载在第一 电容器连接到负极端子，第三正极性电荷负载单元加载充电在第二电容器中的电荷;以及正极性充电充电/负载控制单元，向开关输出具有相同相位的充电控制信号，并周期性地或不规则地改变 充电和加载控制的持续时间 诺尔斯

公开(公告)号：US20110266962A1

公开(公告)日：2011-11-03

申请号：US13095572

申请日：2011-04-27

申请人： Young Suk Son ,  Tae-Kyu Nam ,  Won-Suk Jang ,  Hyung-Seog Oh

发明人： Young Suk Son ,  Tae-Kyu Nam ,  Won-Suk Jang ,  Hyung-Seog Oh

IPC分类号： H05B37/02 ,  H03K3/00

CPC分类号： H05B33/0815 ,  H05B33/0827 ,  Y02B20/347

摘要： A driver IC for electrical loads, suitable for regulating a driving voltage depending upon a feedback signal and supplying a regulated driving voltage to a power supply line to which load strings are connected in parallel. The driver IC includes driving current sources respectively connected to the load strings through regulated voltage nodes and configured to supply driving current to the load strings in response to a control signal; sensing units configured to sense and output a minimum voltage among voltages of the regulated voltage nodes; a sample-and-hold circuit configured to sample, hold and output the minimum voltage in response to the control signal; and a comparator configured to compare an output voltage of the sample-and-hold circuit and a reference threshold voltage and generate the feedback signal.

摘要翻译： 一种用于电气负载的驱动器IC，适用于根据反馈信号调节驱动电压，并将调节的驱动电压提供给负载串并联连接的电源线。 驱动器IC包括分别通过调节电压节点连接到负载串的驱动电流源，并且被配置为响应于控制信号向驱动电流提供驱动电流; 感测单元，被配置为感测并输出调节电压节点的电压中的最小电压; 采样保持电路，被配置为响应于所述控制信号采样，保持和输出所述最小电压; 以及比较器，被配置为将采样保持电路的输出电压与参考阈值电压进行比较，并产生反馈信号。

公开(公告)号：US08854354B2

公开(公告)日：2014-10-07

申请号：US12909272

申请日：2010-10-21

申请人： Yong Sung Ahn ,  Jung Min Choi ,  Sang Rok Cha ,  Dae Keun Han ,  Hyung Seog Oh ,  Yong Suk Kim

发明人： Yong Sung Ahn ,  Jung Min Choi ,  Sang Rok Cha ,  Dae Keun Han ,  Hyung Seog Oh ,  Yong Suk Kim

IPC分类号： G09G5/00 ,  G09G3/36

CPC分类号： G09G3/3696 ,  G09G3/3677 ,  G09G2330/02 ,  G09G2330/06

摘要： A power supply circuit of a liquid crystal display device includes a first positive polarity charge charging unit including a first capacitor connected to positive and negative power terminals through switches to charge a charge, a second positive polarity charge charging unit including a second capacitor connected to the positive power terminal and a ground terminal through switches to charge a charge, a first positive polarity charge loading unit loading the charge supplied through the positive power terminal to a negative polarity terminal, a second positive polarity charge loading unit loading the charge charged in the first capacitor to a negative polarity terminal, a third positive polarity charge loading unit loading the charge charged in the second capacitor, and a positive polarity charge charging/loading control unit outputting charging control signals with a same phase to the switches, and periodically or irregularly changing durations of the charging and loading control signals.

摘要翻译： 液晶显示装置的电源电路包括第一正极性充电充电单元，其包括通过开关对正电源端子和负电源端子连接的第一电容器进行充电;第二正极性充电单元，包括连接到 正电源端子和接地端子，通过开关对电荷充电，第一正极性电荷负载单元将通过正电源端子提供的电荷负载到负极端子;第二正极性电荷负载单元，负载在第一 电容器连接到负极端子，第三正极性电荷负载单元加载充电在第二电容器中的电荷;以及正极性充电充电/负载控制单元，向开关输出具有相同相位的充电控制信号，并周期性地或不规则地改变 充电和加载控制的持续时间 诺尔斯

公开(公告)号：US08717338B2

公开(公告)日：2014-05-06

申请号：US13063539

申请日：2009-09-04

申请人： Young-Suk Son ,  Hyun-Min Song ,  Hyun-Ja Cho ,  Yong-Sung Ahn ,  Hyung-Seog Oh ,  Dae-Keun Han

发明人： Young-Suk Son ,  Hyun-Min Song ,  Hyun-Ja Cho ,  Yong-Sung Ahn ,  Hyung-Seog Oh ,  Dae-Keun Han

IPC分类号： G06F3/038

CPC分类号： G09G3/3614 ,  G09G3/3688 ,  G09G2310/0248 ,  G09G2310/0297 ,  G09G2330/021

摘要： A display driving circuit includes a buffer section, an N-dot switch circuit, a charge sharing switch circuit, and a sharing voltage level control switch circuit. The buffer section buffers a plurality of pixel driving signals outputted from a plurality of DACs. The N-dot switch circuit selects paths of the plurality of pixel driving signals outputted from the buffer section in response to a first path selecting signal or a second path selecting signal that is determined depending upon a dot inversion method, and switches the paths to a plurality of output terminals. The charge sharing switch circuit shares charges among the plurality of output terminals in response to a charge sharing control signal. The sharing voltage level control switch circuit controls charge sharing between the plurality of output terminals and a voltage level upon charge sharing, in response to a sharing voltage level control signal.

摘要翻译： 显示驱动电路包括缓冲器部分，N点开关电路，电荷共享开关电路和共享电压电平控制开关电路。 缓冲器部分缓冲从多个DAC输出的多个像素驱动信号。 N点开关电路响应于根据点反转方法确定的第一路径选择信号或第二路径选择信号，选择从缓冲器部分输出的多个像素驱动信号的路径，并将路径切换到 多个输出端子。 电荷共享开关电路响应于电荷共享控制信号而在多个输出端子之间共享电荷。 响应于共享电压电平控制信号，共享电压电平控制开关电路控制多个输出端子之间的电荷共享和电荷共享时的电压电平。

公开(公告)号：US08441473B2

公开(公告)日：2013-05-14

申请号：US12593102

申请日：2008-03-17

申请人： Dae-Keun Han ,  Dae-Seong Kim ,  Hyung-Seog Oh ,  Joon-Ho Na ,  Hyun-Ho Cho

发明人： Dae-Keun Han ,  Dae-Seong Kim ,  Hyung-Seog Oh ,  Joon-Ho Na ,  Hyun-Ho Cho

IPC分类号： G06F3/038

CPC分类号： G09G3/3614 ,  G09G3/3685 ,  G09G2320/0247

摘要： A method of removing offsets between channels of a liquid crystal panel is provided. The method includes: alternately arranging first type output buffers and second type output buffers for driving the pixels in units of at least two rows of the pixels; and arranging the first type output buffers and the second type output buffers in units of at least two columns of the pixels so that the output buffers with types opposite to those of previous two columns are arranged. The second type output buffers are embodied by switching connections among the differential transistors and connections among the load transistors in the first type output buffers.

摘要翻译： 提供一种去除液晶面板通道之间偏移的方法。 该方法包括：交替排列第一类型的输出缓冲器和第二类型的输出缓冲器，用于以至少两行像素为单位驱动像素; 并且以至少两列像素为单位布置第一类型输出缓冲器和第二类型输出缓冲器，使得排列具有与前两列相反类型的输出缓冲器。 第二类型输出缓冲器通过在差分晶体管之间切换连接和在第一类型输出缓冲器中的负载晶体管之间的连接来实现。

公开(公告)号：US20110096054A1

公开(公告)日：2011-04-28

申请号：US12912187

申请日：2010-10-26

申请人： Hyun-Ho CHO ,  Ji-Hun Kim ,  Joon-Ho Na ,  Hyung-Seog Oh ,  Dae-Seong Kim ,  Dae-Keun Han

发明人： Hyun-Ho CHO ,  Ji-Hun Kim ,  Joon-Ho Na ,  Hyung-Seog Oh ,  Dae-Seong Kim ,  Dae-Keun Han

IPC分类号： G09G3/36 ,  G09G5/00

CPC分类号： G09G3/3685 ,  G09G3/20 ,  G09G3/3696 ,  G09G2310/027

摘要： Disclosed is a liquid crystal display panel driving circuit for driving a liquid crystal display panel with a resolution of N bits. N-bit digital data including upper X bits and lower Y bits is inputted. The liquid crystal display panel driving circuit includes a resistor string unit according to areas, a DAC converter switching unit according to areas, and an interpolation amplifier. The resistor string unit outputs analog reference voltages at different ratios according to three areas. The DAC converter switching unit receives the N-bit digital data, selects (Y+1) analog voltages from the analog reference voltages based on the upper X bits, outputs the (Y+1) analog voltages, and outputs the (Y+1) analog voltages of different combinations based on the lower Y bits. The interpolation amplifier receives the (Y+1) analog voltages and generates an interpolated output voltage by setting weights for the (Y+1) analog voltages by using multi-factors.

摘要翻译： 公开了一种以N位分辨率驱动液晶显示面板的液晶显示面板驱动电路。 输入包括高X位和低Y位的N位数字数据。 液晶显示面板驱动电路包括根据区域的电阻串单元，根据区域的DAC转换器切换单元和内插放大器。 电阻串单元根据三个区域输出不同比例的模拟参考电压。 DAC转换器切换单元接收N位数字数据，从模拟参考电压基于高X位选择（Y + 1）模拟电压，输出（Y + 1）模拟电压，并输出（Y + 1） ）基于较低Y位的不同组合的模拟电压。 内插放大器通过使用多因素设置（Y + 1）模拟电压的权重，接收（Y + 1）模拟电压并产生内插输出电压。

公开(公告)号：US20100118024A1

公开(公告)日：2010-05-13

申请号：US12593102

申请日：2008-03-17

申请人： Dae-Keun Han ,  Dae-Seong Kim ,  Hyung-Seog Oh ,  Joon-Ho Na ,  Hyun-Ho Cho

发明人： Dae-Keun Han ,  Dae-Seong Kim ,  Hyung-Seog Oh ,  Joon-Ho Na ,  Hyun-Ho Cho

IPC分类号： G09G3/36 ,  G06F3/038

CPC分类号： G09G3/3614 ,  G09G3/3685 ,  G09G2320/0247

摘要： A method of removing offsets between channels of a liquid crystal panel is provided. The method includes: alternately arranging first type output buffers and second type output buffers for driving the pixels in units of at least two rows of the pixels; and arranging the first type output buffers and the second type output buffers in units of at least two columns of the pixels so that the output buffers with types opposite to those of previous two columns are arranged. The second type output buffers are embodied by switching connections among the differential transistors and connections among the load transistors in the first type output buffers.

摘要翻译： 提供一种去除液晶面板通道之间偏移的方法。 该方法包括：交替排列第一类型的输出缓冲器和第二类型的输出缓冲器，用于以至少两行像素为单位驱动像素; 并且以至少两列像素为单位布置第一类型输出缓冲器和第二类型输出缓冲器，使得排列具有与前两列相反类型的输出缓冲器。 第二类型输出缓冲器通过在差分晶体管之间切换连接和在第一类型输出缓冲器中的负载晶体管之间的连接来实现。