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    • 1. 发明申请
    • Liquid crystal display and driving method thereof
    • 液晶显示及其驱动方法
    • US20070291190A1
    • 2007-12-20
    • US11302098
    • 2005-12-12
    • Kyoung-Ju ShinChong-Chul ChaiCheol-Woo ParkYoung-Chol Yang
    • Kyoung-Ju ShinChong-Chul ChaiCheol-Woo ParkYoung-Chol Yang
    • G09G3/36
    • G09G3/3696G02F2001/134318G09G3/3614G09G3/3648G09G2320/0219G09G2320/0247
    • A liquid crystal display (LCD) and a driving method thereof are provided. The LCD comprises a liquid crystal panel having a gate line, a data line, and a pixel defined by the intersection of the gate line and the data line; a grayscale voltage generating unit for generating a grayscale voltage; a driving voltage generating unit for generating a gate off voltage, a positive polarity gate on voltage, and a negative polarity gate on voltage, wherein the negative polarity gate on voltage is lower than the positive polarity gate on voltage; a gate driving unit for supplying the gate line with at least one of the positive polarity gate on voltage and the negative polarity gate on voltage; a data driving unit for supplying the pixel with a data voltage, wherein the data driving unit is supplied with the grayscale voltage from the grayscale voltage generating unit; and a signal control unit for controlling the data driving unit so that a positive polarity data voltage and a negative polarity data voltage are alternately applied to the pixel, and for controlling the gate driving unit so that the positive polarity gate on voltage is applied to the pixel supplied with the positive polarity data voltage and the negative polarity gate on voltage is applied to the pixel supplied with the negative polarity data voltage. Accordingly, the degree of flicker and image sticking is reduced.
    • 提供液晶显示器(LCD)及其驱动方法。 LCD包括具有栅极线,数据线和由栅极线和数据线的交点限定的像素的液晶面板; 用于产生灰度电压的灰度级电压产生单元; 用于产生栅极截止电压的驱动电压产生单元,正极性栅极导通电压和负极栅极导通电压,其中负极栅极导通电压低于正极栅极导通电压; 栅极驱动单元,用于向栅极线提供正极栅极导通电压和负极栅极中的至少一个电压; 数据驱动单元,用于向像素提供数据电压,其中数据驱动单元从灰度级电压产生单元提供灰度电压; 以及信号控制单元,用于控制数据驱动单元,使得正极性数据电压和负极性数据电压交替地施加到像素,并且用于控制栅极驱动单元,使得正极栅极导通电压被施加到 提供有正极数据电压和负极栅极导通电压的像素被施加到被提供有负极数据电压的像素。 因此,闪烁和图像残留的程度降低。
    • 2. 发明授权
    • Liquid crystal display and driving method thereof
    • 液晶显示及其驱动方法
    • US07907106B2
    • 2011-03-15
    • US11302098
    • 2005-12-12
    • Kyoung-Ju ShinChong-Chul ChaiCheol-Woo ParkYoung-Chol Yang
    • Kyoung-Ju ShinChong-Chul ChaiCheol-Woo ParkYoung-Chol Yang
    • G09G3/36
    • G09G3/3696G02F2001/134318G09G3/3614G09G3/3648G09G2320/0219G09G2320/0247
    • A liquid crystal display (LCD) and a driving method thereof are provided. The LCD comprises a liquid crystal panel having a gate line, a data line, and a pixel defined by the intersection of the gate line and the data line; a grayscale voltage generating unit for generating a grayscale voltage; a driving voltage generating unit for generating a gate off voltage, a positive polarity gate on voltage, and a negative polarity gate on voltage, wherein the negative polarity gate on voltage is lower than the positive polarity gate on voltage; a gate driving unit for supplying the gate line with at least one of the positive polarity gate on voltage and the negative polarity gate on voltage; a data driving unit for supplying the pixel with a data voltage, wherein the data driving unit is supplied with the grayscale voltage from the grayscale voltage generating unit; and a signal control unit for controlling the data driving unit so that a positive polarity data voltage and a negative polarity data voltage are alternately applied to the pixel, and for controlling the gate driving unit so that the positive polarity gate on voltage is applied to the pixel supplied with the positive polarity data voltage and the negative polarity gate on voltage is applied to the pixel supplied with the negative polarity data voltage. Accordingly, the degree of flicker and image sticking is reduced.
    • 提供液晶显示器(LCD)及其驱动方法。 LCD包括具有栅极线,数据线和由栅极线和数据线的交点限定的像素的液晶面板; 用于产生灰度电压的灰度级电压产生单元; 用于产生栅极截止电压的驱动电压产生单元,正极性栅极导通电压和负极栅极导通电压,其中负极栅极导通电压低于正极栅极导通电压; 栅极驱动单元,用于向栅极线提供正极栅极导通电压和负极栅极中的至少一个电压; 数据驱动单元,用于向像素提供数据电压,其中数据驱动单元从灰度级电压产生单元提供灰度电压; 以及信号控制单元,用于控制数据驱动单元,使得正极性数据电压和负极性数据电压交替地施加到像素,并且用于控制栅极驱动单元,使得正极栅极导通电压被施加到 提供有正极数据电压和负极栅极导通电压的像素被施加到被提供有负极数据电压的像素。 因此,闪烁和图像残留的程度降低。
    • 6. 发明申请
    • LIQUID CRYSTAL DISPLAY APPARATUS
    • 液晶显示装置
    • US20090174829A1
    • 2009-07-09
    • US12369918
    • 2009-02-12
    • Kyoung-Ju ShinCheol-Woo ParkChong-Chul Chai
    • Kyoung-Ju ShinCheol-Woo ParkChong-Chul Chai
    • G02F1/133
    • G02F1/13624G02F1/134363G02F2001/134372G02F2001/136245
    • In the provided liquid crystal display apparatus, a first switching element receives a first data signal and a second switching element receives a second data signal having a polarity opposite that of the first data signal. A first pixel electrode is electrically connected to the first switching element to receive the first data signal and a second pixel electrode is electrically connected to the second switching element to receive the second data signal. The second pixel electrode faces the first pixel electrode and is electrically insulated from the first pixel electrode. A liquid crystal layer has liquid crystal molecules aligned in response to the first and second data signals applied to the first and second pixel electrodes, respectively. Thus, the liquid crystal display apparatus may prevent afterimages on a screen thereof and a flickering phenomenon.
    • 在所提供的液晶显示装置中,第一开关元件接收第一数据信号,第二开关元件接收与第一数据信号的极性相反的第二数据信号。 第一像素电极电连接到第一开关元件以接收第一数据信号,并且第二像素电极电连接到第二开关元件以接收第二数据信号。 第二像素电极面对第一像素电极并与第一像素电极电绝缘。 液晶层具有分别响应于施加到第一和第二像素电极的第一和第二数据信号而取向的液晶分子。 因此,液晶显示装置可以防止其屏幕上的残影和闪烁现象。