公开(公告)号：US20130300690A1

公开(公告)日：2013-11-14

申请号：US13869784

申请日：2013-04-24

申请人： Jun Hyeok YANG ,  Jung Min CHOI ,  Yong Suk KIM ,  Hyung Seog OH

发明人： Jun Hyeok YANG ,  Jung Min CHOI ,  Yong Suk KIM ,  Hyung Seog OH

IPC分类号： G06F3/041

CPC分类号： G06F3/0416 ,  G06F3/0418 ,  G06F3/044

摘要： The present invention discloses a control circuit of a touch screen and a noise removing method. The present invention provides a technique for performing differential sensing on two adjacent detection lines of a touch screen panel and integrating a differential sensing signal to filter noise. The control circuit and the noise removing method may remove display noise having an effect on two adjacent detection lines, three-wavelength lamp noise having a predetermined frequency, 60 Hz noise, and charger noise caused by battery charging.

摘要翻译： 本发明公开了一种触摸屏的控制电路和噪声去除方法。 本发明提供了一种用于在触摸屏面板的两个相邻检测线上执行差分感测并将差分感测信号整合以滤除噪声的技术。 控制电路和噪声消除方法可以消除对两个相邻检测线的影响的显示噪声，具有预定频率的三波长灯噪声，60Hz噪声和由电池充电引起的充电器噪声。

公开(公告)号：US20110298769A1

公开(公告)日：2011-12-08

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： G09G3/36 ,  G09G5/00

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：US20110199821A1

公开(公告)日：2011-08-18

申请号：US13124825

申请日：2009-10-13

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： G11C16/06

CPC分类号： G11C16/30 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2330/02 ,  G09G2330/021 ,  G11C5/145

摘要： A power management IC includes a first IC having a boost converter IC which generates a second voltage using a first voltage supplied from an outside and supplies the second voltages to a charge pump, a reference voltage generation circuit, and an EEPROM; and a second IC configured to be inputted with a third voltage and a fourth voltage as outputs of the charge pump and output a fifth voltage and a sixth voltage. The second IC has a voltage regulator which regulates the third voltage and the fourth voltage or the fifth voltage and the sixth voltage and generates an eighth voltage and a ninth voltage as voltages required for programming operation or erasing operation of the EEPROM.

摘要翻译： 电源管理IC包括具有升压转换器IC的第一IC，其使用从外部提供的第一电压产生第二电压，并将第二电压提供给电荷泵，参考电压产生电路和EEPROM; 以及第二IC，被配置为输入第三电压和第四电压作为电荷泵的输出，并输出第五电压和第六电压。 第二IC具有调节第三电压和第四电压或第五电压和第六电压的电压调节器，并且产生作为EEPROM的编程操作或擦除操作所需的电压的第八电压和第九电压。

公开(公告)号：US08963905B2

公开(公告)日：2015-02-24

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： G09G5/00 ,  H03M1/00 ,  G09G3/36 ,  G09G3/20

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：US20120268144A1

公开(公告)日：2012-10-25

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

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：US20120169701A1

公开(公告)日：2012-07-05

申请号：US13394696

申请日：2010-09-01

申请人： Young Suk Son ,  Hyung Seog Oh ,  Dae Keun Han ,  Gyu Hyeong Cho ,  Jun Hyeok Yang ,  Seung Chul Jung

发明人： Young Suk Son ,  Hyung Seog Oh ,  Dae Keun Han ,  Gyu Hyeong Cho ,  Jun Hyeok Yang ,  Seung Chul Jung

IPC分类号： G09G5/00

CPC分类号： G06F3/0416 ,  G06F3/042 ,  G06F3/044

摘要： A readout integrated circuit (ROIC) for a touch screen, the readout integrated circuit includes: a touch sensor unit configured to include a plurality of touch sensors which are arranged in a matrix form having rows and columns in an inside or outside of a touch screen panel (TSP); a plurality of sensing blocks configured to sense an electrical change in each of the touch sensors, to convert the electrical change into a voltage value, and to store the voltage value; a delta circuit unit configured to receive a difference between two sensing voltage values stored in two sensing blocks, respectively, which are spaced by a predetermined distance and selected from among the plurality of sensing blocks, and to produce a delta (Δ) voltage; and an analog-to-digital converter configured to convert an analog signal output from the delta circuit unit into an N-bit digital signal (wherein, “N” is a natural number).

摘要翻译： 一种用于触摸屏的读出集成电路（ROIC），所述读出集成电路包括：触摸传感器单元，被配置为包括多个触摸传感器，所述多个触摸传感器以矩阵形式布置，在触摸屏的内部或外部具有行和列 小组（TSP）; 多个感测块，被配置为感测每个触摸传感器中的电变化，将电变化转换为电压值，并存储电压值; Δ电路单元，被配置为接收分别存储在两个感测块中的两个感测电压值之间的差异，所述感测电压值间隔预定距离并从所述多个感测块中选择并产生增量（＆Dgr）电压; 以及模拟 - 数字转换器，被配置为将从所述增量电路单元输出的模拟信号转换为N位数字信号（其中，“N”是自然数）。

公开(公告)号：US08502459B2

公开(公告)日：2013-08-06

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： H05B41/36 ,  H05B37/02

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：US20110169808A1

公开(公告)日：2011-07-14

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： G09G5/00 ,  H03F3/45

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：US20100141687A1

公开(公告)日：2010-06-10

申请号：US12594794

申请日：2008-03-26

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

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

IPC分类号： G09G5/10

CPC分类号： G09G3/2007 ,  G09G2310/0275 ,  G09G2320/0276 ,  G09G2320/041

摘要： Provided are a method of arranging gamma buffers capable of decreasing a Kelvin of a source driver included in a flat panel display and minimizing a temperature deviation between source drivers, and the flat panel display applying the method. The method of arranging a plurality of gamma buffers which are arranged in one or more source drivers to output corresponding gamma voltages, includes a step of calculating power consumptions of the gamma buffers, wherein the method further comprises one or more steps of: changing tab points of the gamma buffers by using the calculated power consumptions of the gamma buffers; and changing positions of the gamma buffers by using the calculated power consumptions of the gamma buffers.

摘要翻译： 提供了一种布置能够降低平板显示器中包括的源极驱动器的开尔文并使源极驱动器之间的温度偏差最小化的应用该方法的平板显示器的方法。 布置在一个或多个源驱动器中以输出相应伽马电压的多个伽马缓冲器的方法包括计算伽马缓冲器的功耗的步骤，其中该方法还包括一个或多个步骤：改变标记点 的γ缓冲器的功率消耗; 以及通过使用计算出的伽马缓冲器的功率消耗来改变伽马缓冲器的位置。

公开(公告)号：US6154388A

公开(公告)日：2000-11-28

申请号：US283572

申请日：1999-04-01

申请人： Hyung Seog Oh

发明人： Hyung Seog Oh

IPC分类号： G11C11/40 ,  G11C5/00 ,  G11C16/04

CPC分类号： G11C5/005

摘要： A security circuit for a semiconductor memory, is disclosed, which is able to provide excellent security and safety for data stored in the memory, even if a small number of pads are available. The circuit includes a pad connected to a terminal on a memory IC for use as a write enable terminal, a fuse connected between the pad and the internal memory IC for isolating the internal memory IC from the pad after data is written on the memory IC, a low voltage detecting part for detecting a low voltage at a pad terminal, a latching part for forwarding an output of the low voltage detecting part after maintaining or inverting the output, a switching part for supplying power sufficient to the fuse in response to a signal from the latching part, a pull-up part for pulling up a voltage of the memory when the fuse is blown, and a power on reset part for initializing the latching part.

摘要翻译： 公开了一种用于半导体存储器的安全电路，其能够为存储在存储器中的数据提供优异的安全性和安全性，即使少数焊盘是可用的。 该电路包括连接到存储器IC上的端子用作写入使能端子的焊盘，连接在焊盘和内部存储器IC之间的熔丝，用于在将数据写入存储器IC之后将内部存储器IC与焊盘隔离， 用于检测焊盘端子处的低电压的低电压检测部分，用于在保持或反相输出之后转发低电压检测部分的输出的锁存部分，用于响应于信号向保险丝提供足够的电力的开关部分 从所述闩锁部开始，当所述保险丝熔断时，用于提升所述存储器的电压的上拉部，以及用于初始化所述闩锁部的上电复位部。