Light emitting device and method of driving the same
    1.
    发明授权
    Light emitting device and method of driving the same 有权
    发光装置及其驱动方法

    公开(公告)号:US08416160B2

    公开(公告)日:2013-04-09

    申请号:US13020320

    申请日:2011-02-03

    申请人: Ji Hun Kim

    发明人: Ji Hun Kim

    IPC分类号: G09G3/30

    摘要: The present invention relates to a light emitting device for preventing a cross-talk phenomenon and a pectinated pattern. The light emitting device includes data lines, scan lines, pixels and a discharging circuit. The data lines are disposed in a first direction, and the scan lines are disposed in a second direction different from the first direction. The pixels are formed in cross areas of the data lines and the scan lines. The discharging circuit discharges at least one data line to a first discharge voltage during a first sub-discharging time of a discharging time, and changes the first discharge voltage into a second discharge voltage during a second sub-discharging time of the discharging time. The light emitting device discharges data lines to discharge voltages corresponding to cathode voltage of pixels, and so cross-talk phenomenon and pectinated pattern is not occurred in the light emitting device.

    摘要翻译: 本发明涉及一种用于防止串扰现象和果胶图案的发光装置。 发光器件包括数据线,扫描线,像素和放电电路。 数据线设置在第一方向上,并且扫描线沿与第一方向不同的第二方向设置。 像素形成在数据线和扫描线的交叉区域中。 放电电路在放电时间的第一次放电时间期间将至少一条数据线放电至第一放电电压,并且在放电时间的第二次放电时间期间将第一放电电压变为第二放电电压。 发光器件将数据线放电以对应于像素的阴极电压的放电电压,因此在发光器件中不会发生串扰现象和锯齿状图案。

    LIQUID CRYSTAL PANEL DRIVING CIRCUIT FOR DISPLAY STABILIZATION
    2.
    发明申请
    LIQUID CRYSTAL PANEL DRIVING CIRCUIT FOR DISPLAY STABILIZATION 有权
    液晶面板驱动电路,用于显示稳定

    公开(公告)号:US20120280961A1

    公开(公告)日:2012-11-08

    申请号:US13461317

    申请日:2012-05-01

    IPC分类号: G09G5/00 G09G3/36

    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。

    SOURCE DRIVER OUTPUT CIRCUIT OF FLAT PANEL DISPLAY DEVICE
    4.
    发明申请
    SOURCE DRIVER OUTPUT CIRCUIT OF FLAT PANEL DISPLAY DEVICE 审中-公开
    平板显示设备的源驱动器输出电路

    公开(公告)号:US20120133631A1

    公开(公告)日:2012-05-31

    申请号:US13301101

    申请日:2011-11-21

    IPC分类号: G09G5/00

    CPC分类号: G09G3/3688 G09G2310/0248

    摘要: In a source driver output circuit of a flat panel display device, first and second latch units receive image data and store the received image data. A D/A converter converts the image data into a data voltage. An output buffer unit outputs the data voltage to a data line. A switching control unit decides whether or not the data voltages of two image data of the same channel among image data of horizontal lines adjacent to each other, stored in the first and second latch units, belong to the same grayscale voltage range, and outputs a switching control signal based on the decided result. A multiplexer unit selects a pre-charge voltage in response to the switching control signal or continuously maintains a connection state between a corresponding channel of the output buffer unit and the corresponding data line.

    摘要翻译: 在平板显示装置的源极驱动器输出电路中,第一和第二锁存单元接收图像数据并存储所接收的图像数据。 D / A转换器将图像数据转换成数据电压。 输出缓冲单元将数据电压输出到数据线。 切换控制单元判定存储在第一和第二锁存单元中的彼此相邻的水平线的图像数据中的相同信道的两个图像数据的数据电压是否属于相同的灰度级电压范围,并输出 根据决定的结果切换控制信号。 复用器单元响应于切换控制信号选择预充电电压,或者连续地保持输出缓冲器单元的相应通道与相应数据线之间的连接状态。

    SOURCE DRIVER INTEGRATED CIRCUIT WITH IMPROVED SLEW RATE
    5.
    发明申请
    SOURCE DRIVER INTEGRATED CIRCUIT WITH IMPROVED SLEW RATE 有权
    源驱动器集成电路具有改进的单向速率

    公开(公告)号:US20120081338A1

    公开(公告)日:2012-04-05

    申请号:US13247500

    申请日:2011-09-28

    IPC分类号: G06F3/038

    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。

    DIGITAL-TO-ANALOG CONVERTER CIRCUIT USING CHARGE SUBTRACTION METHOD AND CHARGE TRANSFER INTERPOLATION METHOD
    6.
    发明申请
    DIGITAL-TO-ANALOG CONVERTER CIRCUIT USING CHARGE SUBTRACTION METHOD AND CHARGE TRANSFER INTERPOLATION METHOD 审中-公开
    使用电荷分析方法和电荷转移插值方法的数字到模拟转换器电路

    公开(公告)号:US20110279298A1

    公开(公告)日:2011-11-17

    申请号:US13100596

    申请日:2011-05-04

    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。

    LIQUID CRYSTAL DISPLAY PANEL DRIVING CIRCUIT
    7.
    发明申请
    LIQUID CRYSTAL DISPLAY PANEL DRIVING CIRCUIT 有权
    液晶显示面板驱动电路

    公开(公告)号:US20110096054A1

    公开(公告)日:2011-04-28

    申请号:US12912187

    申请日:2010-10-26

    IPC分类号: G09G3/36 G09G5/00

    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。

    Light emitting device and method of driving the same
    8.
    发明授权
    Light emitting device and method of driving the same 有权
    发光装置及其驱动方法

    公开(公告)号:US07898508B2

    公开(公告)日:2011-03-01

    申请号:US11543141

    申请日:2006-10-05

    申请人: Ji Hun Kim

    发明人: Ji Hun Kim

    摘要: The present invention relates to a light emitting device for preventing a cross-talk phenomenon and a pectinated pattern. The light emitting device includes data lines, scan lines, pixels and a discharging circuit. The data lines are disposed in a first direction, and the scan lines are disposed in a second direction different from the first direction. The pixels are formed in cross areas of the data lines and the scan lines. The discharging circuit discharges at least one data line to a first discharge voltage during a first sub-discharging time of a discharging time, and changes the first discharge voltage into a second discharge voltage during a second sub-discharging time of the discharging time. The light emitting device discharges data lines to discharge voltages corresponding to cathode voltage of pixels, and so cross-talk phenomenon and pectinated pattern is not occurred in the light emitting device.

    摘要翻译: 本发明涉及一种用于防止串扰现象和果胶图案的发光装置。 发光器件包括数据线,扫描线,像素和放电电路。 数据线设置在第一方向上,并且扫描线沿与第一方向不同的第二方向设置。 像素形成在数据线和扫描线的交叉区域中。 放电电路在放电时间的第一次放电时间期间将至少一条数据线放电至第一放电电压,并且在放电时间的第二次放电时间期间将第一放电电压变为第二放电电压。 发光器件将数据线放电以对应于像素的阴极电压的放电电压,因此在发光器件中不会发生串扰现象和锯齿状图案。

    Light emitting device with cross-talk preventing circuit and method of driving the same
    9.
    发明授权
    Light emitting device with cross-talk preventing circuit and method of driving the same 有权
    具有串扰防止电路的发光装置及其驱动方法

    公开(公告)号:US07598935B2

    公开(公告)日:2009-10-06

    申请号:US11410086

    申请日:2006-04-25

    申请人: Ji Hun Kim

    发明人: Ji Hun Kim

    IPC分类号: G09G3/30

    摘要: A light emitting device and a method of driving the same are provided where a cross-talk problem can be overcome. The light emitting device includes a display panel including a plurality of scan lines disposed in a first direction, a plurality of data lines disposed in a second direction, wherein the second direction is different from the first direction, and a plurality of pixels that are defined as overlying areas of the plurality of scan lines and the plurality of data lines, and a cross-talk preventing circuit configured to provide the plurality of scan lines with compensating currents according to display data provided by an outside device.

    摘要翻译: 提供一种可以克服串扰问题的发光器件及其驱动方法。 发光装置包括:显示面板,包括沿第一方向设置的多条扫描线,沿第二方向设置的多条数据线,其中第二方向与第一方向不同,多个像素被限定 作为多个扫描线和多条数据线的叠加区域,以及串扰防止电路,被配置为根据由外部设备提供的显示数据向多条扫描线提供补偿电流。

    Light emitting device and method of driving the same
    10.
    发明授权
    Light emitting device and method of driving the same 有权
    发光装置及其驱动方法

    公开(公告)号:US07450094B2

    公开(公告)日:2008-11-11

    申请号:US11435760

    申请日:2006-05-18

    IPC分类号: G09G3/30

    摘要: The present invention relates to a light emitting device where currents passing through scan lines have the same values. The light emitting device includes data lines, scan lines, pixels, one or more dummy data line and a cross-talk preventing circuit. The data lines are disposed in a first direction, and the scan lines are disposed in a second direction. The pixels are formed in cross areas of the data lines and the scan lines. The dummy data line is disposed in the first direction. The cross-talk preventing circuit provides a compensating current to scan line related to luminescence of the scan lines through the dummy data line so that total sum of current passing through the scan line has a desired value. In the light emitting device, currents passing through scan lines have the same values, and so a cross-talk phenomenon is not occurred to a panel.

    摘要翻译: 本发明涉及通过扫描线的电流具有相同值的发光器件。 发光装置包括数据线,扫描线,像素,一个或多个虚拟数据线和串扰防止电路。 数据线沿第一方向设置,扫描线设置在第二方向。 像素形成在数据线和扫描线的交叉区域中。 虚拟数据线沿第一方向设置。 串扰防止电路通过虚拟数据线提供与扫描线的发光相关的扫描线的补偿电流,使得通过扫描线的电流的总和具有期望值。 在发光装置中,通过扫描线的电流具有相同的值,因此面板不发生串扰现象。