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    • 4. 发明授权
    • Liquid crystal display
    • 液晶显示器
    • US07417612B2
    • 2008-08-26
    • US11712337
    • 2007-02-27
    • Hyun-Su LeeByoung-Jun LeeJun-Pyo LeeYoung-Gil KimHoi-Sik Moon
    • Hyun-Su LeeByoung-Jun LeeJun-Pyo LeeYoung-Gil KimHoi-Sik Moon
    • G09G3/36
    • G09G3/2011G09G3/3648G09G3/3655G09G3/3696G09G2320/0219G09G2320/0276
    • A gamma voltage generator for a liquid crystal display (LCD) capable of removing residual images by compensating a gamma voltage is presented. The gamma voltage generation apparatus adjusts the common voltage by the kickback voltage for the intermediate gray level, and tunes the gamma voltages other than the intermediate gray level gamma voltage. The adjustment of the gamma voltages other than the intermediate gray level gamma voltage is achieved in such a manner that the difference between the intermediate gray level kickback voltage and the kickback voltage at one of the gray levels other than the intermediate gray level is equal to half of the difference between the sum of the two inverted gamma voltages representing the intermediate gray level gamma voltages and the sum of the two inverted gamma voltages corresponding to the selected gray level.
    • 提出了能够通过补偿伽马电压来去除残留图像的用于液晶显示器(LCD)的伽马电压发生器。 伽马电压产生装置通过用于中间灰度级的反冲电压来调节公共电压,并调谐除了中间灰度级伽玛电压之外的伽马电压。 以中间灰度级伽玛电压以外的伽马电压的调整以这样的方式实现:中间灰度级反冲电压与中间灰度之外的灰度级之一的反冲电压之间的差等于一半 表示中间灰度级伽玛电压的两个反相伽马电压的总和与对应于所选择的灰度级的两个反相伽马电压的总和之差。
    • 10. 发明授权
    • Gate drive device with shift register for display device and display device having the same
    • 具有用于显示装置的移位寄存器和具有其的显示装置的栅极驱动装置
    • US08253679B2
    • 2012-08-28
    • US12618094
    • 2009-11-13
    • Woo-Chul KimJun-Pyo LeeSeung-Hwan MoonSun-Kyu Son
    • Woo-Chul KimJun-Pyo LeeSeung-Hwan MoonSun-Kyu Son
    • G09G3/36
    • G09G3/3677G09G3/3659G09G2300/0439G09G2310/0251
    • A gate drive portion for a display device including multiple pixels having first and second sub-pixels includes a first shift register generating a first output signal in response to a first gate clock signal, a second shift register generating a second output signal in response to a second gate clock signal, a level shifter coupled to the first and second shift registers and amplifying the first and second output signals, and an output buffer coupled to the level shifter and generating first and second gate signals. The first gate signal is generated in synchronization with the first gate clock signal and the second gate signal is generated in synchronization with the second gate clock signal. Accordingly, the charging time of the first and second sub-pixels may be improved by separately driving the odd-numbered and even-numbered sub-pixels and the visibility of the LCD device may also be improved.
    • 用于包括具有第一和第二子像素的多个像素的显示装置的栅极驱动部分包括响应于第一栅极时钟信号产生第一输出信号的第一移位寄存器,响应于第二栅极时钟信号产生第二输出信号的第二移位寄存器 第二门时钟信号,耦合到第一和第二移位寄存器并放大第一和第二输出信号的电平移位器,以及耦合到电平移位器并产生第一和第二门信号的输出缓冲器。 与第一栅极时钟信号同步地生成第一栅极信号,并且与第二栅极时钟信号同步地产生第二栅极信号。 因此,可以通过分开驱动奇数和偶数子像素来提高第一和第二子像素的充电时间,并且还可以提高LCD装置的可视性。