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    • 3. 发明申请
    • LIQUID CRYSTAL DISPLAY AND METHOD OF OPERATING THE SAME
    • 液晶显示器及其操作方法
    • US20100033415A1
    • 2010-02-11
    • US12409681
    • 2009-03-24
    • Hyeon-Seok BAESang-Chul LEEKwang-Youl LEE
    • Hyeon-Seok BAESang-Chul LEEKwang-Youl LEE
    • G09G3/36
    • G09G3/3696G09G2330/02
    • A liquid crystal display includes; a liquid crystal panel, and a DC-DC converter which receives an input voltage to generate an analog drive voltage and a gate-on voltage used to operate the liquid crystal panel, wherein the DC-DC converter includes a pulse width modulation circuit which modulates a pulse width of the analog drive voltage and the gate-on voltage, a boost converter which boosts the input voltage to output the analog drive voltage, and a charge pump which boosts one of the input voltage and the analog drive voltage to output the gate-on voltage, wherein when a high voltage stress test is performed, the DC-DC converter outputs the analog drive voltage boosted to a voltage level higher than a voltage level of the analog drive voltage during a normal operation, and outputs the gate-on voltage having a voltage level substantially equal to a voltage level of the gate-on voltage during the normal operation.
    • 液晶显示器包括: 液晶面板和接收输入电压以产生用于操作液晶面板的模拟驱动电压和栅极导通电压的DC-DC转换器,其中DC-DC转换器包括调制脉冲宽度调制电路 模拟驱动电压和栅极导通电压的脉冲宽度,升压输入电压以输出模拟驱动电压的升压转换器,以及升压输入电压和模拟驱动电压之一以输出门极的电荷泵 - 其中当执行高压应力测试时,所述DC-DC转换器在正常操作期间将升压的模拟驱动电压输出到高于模拟驱动电压的电压电平的电压电平,并且输出门极导通 电压具有在正常操作期间基本上等于栅极导通电压的电压电平的电压电平。
    • 4. 发明申请
    • DRIVING APPARATUS, LIQUID CRYSTAL DISPLAY COMPRISING THE DRIVING APPARATUS AND METHOD OF DRIVING THE LIQUID CRYSTAL DISPLAY
    • 驱动装置,包含驱动装置的液晶显示器和驱动液晶显示器的方法
    • US20080007505A1
    • 2008-01-10
    • US11694018
    • 2007-03-30
    • Ho-young KimHyeon-seok Bae
    • Ho-young KimHyeon-seok Bae
    • G09G3/36
    • G09G3/3648G09G2310/08G09G2320/0223
    • A driving apparatus includes a timing controller, a gate driver, and a pulse width controller. The timing controller generates a gate output enable signal having a width which is used for defining on-voltage widths of gate driving signals. The gate driver sequentially outputs the gate driving signals corresponds to a plurality of gate lines. The gate driver is controlled to prevent overlapping of the gate driving signals. The pulse width controller includes a signal generator and a converter. The signal generator receives two of the gate driving signals from two adjacent gate lines, compares the two gate driving signals, and generates a detection signal that detects an overlapping area of the two gate driving signals. The converter converts the detection signal to a pulse width control signal and feeds the pulse width control signal back to the timing controller. The timing controller receives the pulse width control signal and adjusts the width of the gate output enable signal.
    • 驱动装置包括定时控制器,栅极驱动器和脉冲宽度控制器。 定时控制器产生具有用于限定栅极驱动信号的电压宽度的宽度的栅极输出使能信号。 栅极驱动器依次输出对应于多条栅极线的栅极驱动信号。 控制栅极驱动器以防止栅极驱动信号的重叠。 脉宽控制器包括信号发生器和转换器。 信号发生器接收来自两个相邻栅极线的两个栅极驱动信号,比较两个栅极驱动信号,并产生检测两个栅极驱动信号的重叠区域的检测信号。 该转换器将检测信号转换成脉冲宽度控制信号,并将脉冲宽度控制信号反馈给定时控制器。 定时控制器接收脉冲宽度控制信号并调整栅极输出使能信号的宽度。
    • 5. 发明授权
    • Plural power generating units for use in a liquid crystal display and control thereof
    • 用于液晶显示器的多个发电单元及其控制
    • US08139056B2
    • 2012-03-20
    • US12193151
    • 2008-08-18
    • Cheol Ho LeeHyeon Seok BaeSang Chul Lee
    • Cheol Ho LeeHyeon Seok BaeSang Chul Lee
    • G06F3/038G09G5/00
    • G09G3/3666G09G3/3696G09G2320/0223G09G2320/0233
    • A power generating module is provided in an LCD where the power generating module includes a first driving voltage generator, a second driving voltage generator and an output deviation controller. The first driving voltage generator generates and outputs a first set of LCD driving voltages including a first liquid crystal driving voltage and a first gate-on-voltage. The second driving voltage generator generates and outputs a similar second set of LCD driving voltages. The output deviation controller controls the first and second driving voltage generators using one or more feedback signals each corresponding to a potential difference between counterpart output voltages of the first driving voltage and the second driving voltage to reduce output deviations between those counterpart output voltages.
    • 发电模块设置在LCD中,其中发电模块包括第一驱动电压发生器,第二驱动电压发生器和输出偏差控制器。 第一驱动电压发生器产生并输出包括第一液晶驱动电压和第一栅极导通电压的第一组LCD驱动电压。 第二驱动电压发生器产生并输出类似的第二组LCD驱动电压。 输出偏差控制器使用一个或多个反馈信号来控制第一和第二驱动电压发生器,每个反馈信号各自对应于第一驱动电压和第二驱动电压的对方输出电压之间的电位差,以减小这些对应输出电压之间的输出偏差。
    • 6. 发明申请
    • LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME
    • 液晶显示装置及其驱动方法
    • US20080084412A1
    • 2008-04-10
    • US11842225
    • 2007-08-21
    • Hyeon Seok BAESang Chul LEE
    • Hyeon Seok BAESang Chul LEE
    • G09G5/00G09G3/36
    • G09G3/3611G09G3/3648G09G2310/061G09G2310/08G09G2320/02
    • A liquid crystal display (“LCD”) device and method of driving the same capable of eliminating pressure induced light leakage includes a liquid crystal display comprising an LCD panel having a plurality of gate lines, a plurality of data lines formed in a direction to intersect the plurality of gate lines, and a plurality of unit pixels respectively formed at intersection regions of the plurality of gate and data lines; a power circuit for generating a plurality of driving voltages for driving the LCD panel; a gate driving unit for driving the plurality of gate lines; a source driving unit for driving the plurality of data lines; and a timing control circuit for generating plurality of control signals for controlling the gate and source driving units, wherein the timing control circuit drives the LCD panel in a non-electric field state every predetermined frame.
    • 一种液晶显示器(“LCD”)装置及其驱动方法,能够消除压力感应的光泄漏,包括:液晶显示器,包括具有多个栅极线的LCD面板,沿相交方向形成的多条数据线 多个栅极线,以及分别形成在多个栅极和数据线的交叉区域的多个单位像素; 用于产生用于驱动LCD面板的多个驱动电压的电源电路; 用于驱动所述多条栅极线的栅极驱动单元; 源驱动单元,用于驱动多条数据线; 以及定时控制电路,用于产生用于控制所述栅极和源极驱动单元的多个控制信号,其中所述定时控制电路每隔预定帧驱动所述LCD面板处于非电场状态。
    • 8. 发明授权
    • Liquid crystal display and method of operating the same
    • 液晶显示器及其操作方法
    • US08339347B2
    • 2012-12-25
    • US12409681
    • 2009-03-24
    • Hyeon-Seok BaeSang-Chul LeeKwang-Youl Lee
    • Hyeon-Seok BaeSang-Chul LeeKwang-Youl Lee
    • G09G3/36
    • G09G3/3696G09G2330/02
    • A liquid crystal display includes; a liquid crystal panel, and a DC-DC converter which receives an input voltage to generate an analog drive voltage and a gate-on voltage used to operate the liquid crystal panel, wherein the DC-DC converter includes a pulse width modulation circuit which modulates a pulse width of the analog drive voltage and the gate-on voltage, a boost converter which boosts the input voltage to output the analog drive voltage, and a charge pump which boosts one of the input voltage and the analog drive voltage to output the gate-on voltage, wherein when a high voltage stress test is performed, the DC-DC converter outputs the analog drive voltage boosted to a voltage level higher than a voltage level of the analog drive voltage during a normal operation, and outputs the gate-on voltage having a voltage level substantially equal to a voltage level of the gate-on voltage during the normal operation.
    • 液晶显示器包括: 液晶面板和接收输入电压以产生用于操作液晶面板的模拟驱动电压和栅极导通电压的DC-DC转换器,其中DC-DC转换器包括调制脉冲宽度调制电路 模拟驱动电压和栅极导通电压的脉冲宽度,升压输入电压以输出模拟驱动电压的升压转换器,以及升压输入电压和模拟驱动电压之一以输出门极的电荷泵 - 其中当执行高压应力测试时,所述DC-DC转换器在正常操作期间将升压的模拟驱动电压输出到高于模拟驱动电压的电压电平的电压电平,并且输出门极导通 电压具有在正常操作期间基本上等于栅极导通电压的电压电平的电压电平。