公开(公告)号：US20110279131A1

公开(公告)日：2011-11-17

申请号：US13106411

申请日：2011-05-12

申请人： Ji-Hun KIM ,  Hyun-Min SONG ,  Joon-Ho NA ,  Ki-Uk GWAK ,  Sang-Gug LEE

发明人： Ji-Hun KIM ,  Hyun-Min SONG ,  Joon-Ho NA ,  Ki-Uk GWAK ,  Sang-Gug LEE

IPC分类号： G01R27/26

CPC分类号： G06F3/044

摘要： A circuit for measuring a capacitance value of a touch screen includes: a target capacitor unit having a target capacitor charged with a target charging voltage; a target voltage control unit to charge the target capacitor; a reference capacitor unit having a reference capacitor charged with a charging reference voltage; a reference voltage control unit to charge the reference capacitor; a comparator to compare the target charging voltage and the charging reference voltage and output a transition signal at a moment when the target charging voltage becomes higher than the charging reference voltage; and a controller to receive an output signal of the comparator and a clock signal and generate a digital output signal and a control signal, wherein a capacitance value of the target capacitor is measured using a time elapsed from a time when the target capacitor is initialized to a time when the transition signal is outputted.

摘要翻译： 用于测量触摸屏的电容值的电路包括：目标电容器单元，其具有充电目标充电电压的目标电容; 目标电压控制单元，用于对目标电容器充电; 具有充电了充电参考电压的参考电容器的参考电容器单元; 参考电压控制单元，用于对参考电容器充电; 比较器，用于比较目标充电电压和充电参考电压，并在目标充电电压变得高于充电参考电压的时刻输出转换信号; 以及控制器，用于接收比较器的输出信号和时钟信号，并产生数字输出信号和控制信号，其中使用从目标电容器初始化的时间起经过的时间来测量目标电容器的电容值 输出转换信号的时间。

公开(公告)号：US20110279407A1

公开(公告)日：2011-11-17

申请号：US13105301

申请日：2011-05-11

申请人： Ji-Hun KIM ,  Young-Bok Kim ,  Joon-Ho Na ,  Yeong-Shin Jang ,  Sang-Gug Lee

发明人： Ji-Hun KIM ,  Young-Bok Kim ,  Joon-Ho Na ,  Yeong-Shin Jang ,  Sang-Gug Lee

IPC分类号： G06F3/044

CPC分类号： G06F3/044 ,  G01R27/2605

摘要： A circuit for processing a touch line signal of a touch screen includes a plurality of sensing read circuits and a switch unit. The plurality of sensing read circuits include sensing read-out units and integrators, respectively. The sensing read-out units are configured to precharge a first sensor capacitor and a second sensor capacitor formed on a touch screen panel with a ground voltage and a supply voltage, allow charges charged in the first sensor capacitor and the second sensor capacitor to be shared, and read-out a charge sharing result obtained by allowing the charges of the first sensor capacitor and the second sensor capacitor to be shared. The integrators are configured to integrate output voltages of the sensing read-out units. The switch unit is configured to sequentially connect output terminals of the plurality of sensing read circuits to an input terminal of an analog-to-digital converter.

摘要翻译： 用于处理触摸屏的触摸线信号的电路包括多个感测读取电路和开关单元。 多个感测读取电路分别包括感测读出单元和积分器。 感测读出单元被配置为对接地电压和电源电压在触摸屏面板上形成的第一传感器电容器和第二传感器电容器进行预充电，允许在第一传感器电容器和第二传感器电容器中充电的电荷被共享 并且读出通过允许共享第一传感器电容器和第二传感器电容器的电荷而获得的电荷共享结果。 集成器被配置为集成感测读出单元的输出电压。 开关单元被配置为将多个感测读取电路的输出端子顺序地连接到模数转换器的输入端子。

公开(公告)号：US20110279298A1

公开(公告)日：2011-11-17

申请号：US13100596

申请日：2011-05-04

申请人： Ji-Hun KIM ,  Yeong-Joon Son ,  Joon-Ho Na ,  Jeong-Yeol Bae ,  Sang-Gug Lee

发明人： Ji-Hun KIM ,  Yeong-Joon Son ,  Joon-Ho Na ,  Jeong-Yeol Bae ,  Sang-Gug Lee

IPC分类号： H03M1/66

CPC分类号： H03M1/68 ,  H03M1/765 ,  H03M1/804

摘要： A DAC circuit using a charge subtraction method and a change transfer interpolation method includes resistor cells configured to divide a voltage of data of total K bits (=upper M bits+lower N bits) by resistance dividers; a decoder group configured to receive digital data of the M bits and the N bits divided in the resistor cells, process the digital data by the unit of 2 bits, and output respective corresponding voltages; a capacitor group configured to receive the voltages outputted from the decoder group and realize charge charging by a charge subtraction method and charge transferring by a charge transfer interpolation method; and an operational amplifier having a first input terminal which receives a reference voltage and a second input terminal which receives an interpolation voltage corresponding to an amount of charges transferred from the capacitor group, and configured to generate an output voltage.

摘要翻译： 使用电荷减法和变迁内插法的DAC电路包括电阻单元，其被配置为通过电阻分压器来分配总共K位（=高M位+低N位）的数据的电压; 配置为接收M位的数字数据和在电阻单元中划分的N位的解码器组，以2位为单位处理数字数据，并输出相应的对应电压; 电容器组，被配置为接收从解码器组输出的电压，并通过电荷减法方法实现充电充电，并通过电荷转移插值方法进行电荷转移; 以及运算放大器，其具有接收参考电压的第一输入端子和接收与从所述电容器组传送的电荷量对应的内插电压的第二输入端子，并且被配置为产生输出电压。

公开(公告)号：US20120280961A1

公开(公告)日：2012-11-08

申请号：US13461317

申请日：2012-05-01

申请人： Yeong-Joon SON ,  Ji-Hun KIM ,  Sang-Min LEE ,  Joon-Ho NA ,  Hae-Won LEE

发明人： Yeong-Joon SON ,  Ji-Hun KIM ,  Sang-Min LEE ,  Joon-Ho NA ,  Hae-Won LEE

IPC分类号： G09G5/00 ,  G09G3/36

CPC分类号： G09G3/3685 ,  G09G2310/0248 ,  G09G2310/0297 ,  G09G2330/026 ,  G09G2330/027

摘要： Disclosed is a liquid crystal panel driving circuit of display stabilization, including: a plurality of output buffers buffering data voltage and supplying or cutting off the buffered data voltage to or from each of the plurality of data lines; an output MUX switch receiving outputs from two adjacent output buffers of the plurality of output buffers and transferring one of the two outputs to the plurality of data lines; a garbage switch connecting each of the plurality of data lines to a ground terminal; and a power on sensor or a power off sensor generating a power on or off reset signal in response to a turn on/off of a power supply voltage, wherein the output MUX switch is turned-off and the charge share switch and the garbage switch are turned-on, in response to the power on reset signal or the power off reset signal.

摘要翻译： 公开了一种显示稳定化的液晶面板驱动电路，包括：缓冲数据电压的多个输出缓冲器，并向多个数据线中的每个数据线提供缓冲的数据电压或从其中切出缓冲的数据电压; 输出MUX开关，其接收来自所述多个输出缓冲器的两个相邻输出缓冲器的输出，并将所述两个输出中的一个传送到所述多条数据线; 将所述多条数据线中的每一条连接到接地端的垃圾开关; 以及响应于电源电压的接通/断开而产生电源接通/断开复位信号的电源接通传感器或断电传感器，其中所述输出MUX开关断开，并且所述电荷共享开关和所述垃圾开关 响应于上电复位信号或断电复位信号而导通。

公开(公告)号：US20120081338A1

公开(公告)日：2012-04-05

申请号：US13247500

申请日：2011-09-28

申请人： Ji-Hun KIM ,  Pyung-Sik MA ,  Young-Bok KIM ,  Hyun-Ho CHO ,  Joon-Ho NA

发明人： Ji-Hun KIM ,  Pyung-Sik MA ,  Young-Bok KIM ,  Hyun-Ho CHO ,  Joon-Ho NA

IPC分类号： G06F3/038

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G3/3648 ,  G09G5/02 ,  G09G2300/0408 ,  G09G2310/027 ,  G09G2330/023

摘要： Disclosed is a source driver integrated circuit with an improved slew rate by disposing a switching unit, which operates as a resistance component during display driving, before the feedback line of an output buffer. According to the source driver integrated circuit with an improved slew rate, a switching unit, which operates as a resistance component when a signal is transferred, is disposed in the feedback loop of an output buffer, so that the resistance component is not shown to a panel load, thereby improving the slew rate of an output signal. In addition, the improved slew rate makes it possible to easily implement an image through a display.

摘要翻译： 公开了一种通过在输出缓冲器的反馈线之前设置在显示驱动期间作为电阻分量而工作的开关单元的具有改进的压摆率的源极驱动器集成电路。 根据具有改善的转换速率的源极驱动器集成电路，在输出缓冲器的反馈回路中设置作为电阻分量工作的开关单元，在输出缓冲器的反馈回路中，电阻分量不显示为 面板负载，从而提高输出信号的转换速率。 此外，改进的压摆率使得可以通过显示器容易地实现图像。

公开(公告)号：US20100109540A1

公开(公告)日：2010-05-06

申请号：US12482141

申请日：2009-06-10

申请人： Seung-Tae KIM ,  Han-Jin BAE ,  Won-Kyu HA ,  Ji-Hun KIM

发明人： Seung-Tae KIM ,  Han-Jin BAE ,  Won-Kyu HA ,  Ji-Hun KIM

IPC分类号： H05B37/02

CPC分类号： H05B33/0896 ,  G09G3/3225 ,  G09G3/3266 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/043

摘要： An organic light emitting diode display includes a first scan switching element controlled in response to a first scan signal from a first scan line and connected between a first data line and a first node, a first storage capacitor connected between the first node and an AC voltage supply line, a first driving switching element controlled in response to a signal applied to the first node and connected between a second node and the AC voltage supply line, a light emitting element connected between a high-level voltage supply line and the second node, a first sensing switching element controlled in response to a first gate signal from a first gate line and connected between the first data line and the second node, a second scan switching element controlled in response to a second scan signal from a second scan line and connected between a second data line and a third node, a second storage capacitor connected between the third node and the AC voltage supply line, and a second driving switching element controlled in response to a signal applied to the third node and connected between the second node and the AC voltage supply line.

摘要翻译： 有机发光二极管显示器包括响应于来自第一扫描线的第一扫描信号而被控制并连接在第一数据线和第一节点之间的第一扫描开关元件，连接在第一节点和AC电压之间的第一存储电容器 电源线，响应于施加到第一节点并连接在第二节点和AC电压供应线之间的信号而被控制的第一驱动开关元件，连接在高电平电压供应线和第二节点之间的发光元件， 响应于来自第一栅极线并连接在第一数据线和第二节点之间的第一栅极信号而被控制的第一感测开关元件，响应于来自第二扫描线的第二扫描信号而被控制的第二扫描开关元件， 在第二数据线和第三节点之间，连接在第三节点和AC电压供应线之间的第二存储电容器和第二驱动开关 响应于施加到第三节点并连接在第二节点和AC电压供应线之间的信号而控制瘙痒元件。