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    Liquid crystal display apparatus and driving method thereof
    161.
    发明授权
    Liquid crystal display apparatus and driving method thereof 有权

    公开(公告)号：US09916806B2

    公开(公告)日：2018-03-13

    申请号：US14471665

    申请日：2014-08-28

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Hyun Min Cho ,  Jae Byung Park ,  Seon-Tae Yoon ,  Kwangkeun Lee ,  Jaehyun Cho

    IPC: G09G3/36 ,  G09G3/34

    CPC classification number: G09G3/3685 ,  G09G3/3413 ,  G09G3/3607 ,  G09G3/3611 ,  G09G2320/064 ,  G09G2340/06

    Abstract: A liquid crystal display apparatus includes a gamma mapping unit configured to receive red, green, and blue image information from an external device. During the first field, the gamma mapping unit generates first to third data signals for controlling the first to third pixels based on the red, green, and blue image information in synchronization with the backlight unit. During the second field, the gamma mapping unit generates fourth and fifth data signals for controlling the first and second pixels based on at least one of the first to third data signals or based on the red, green, and blue image information. As the quantity of the second color light leaked is adjusted through the first and second color filters in the second field, a color reproduction range and brightness of the liquid crystal display panel are improved. Thus, the display quality of the liquid crystal display apparatus is improved.

    LIQUID CRYSTAL DISPLAY APPARATUS AND A DRIVING METHOD THEREOF
    164.
    发明申请
    LIQUID CRYSTAL DISPLAY APPARATUS AND A DRIVING METHOD THEREOF 有权
    液晶显示装置及其驱动方法

    公开(公告)号：US20150194104A1

    公开(公告)日：2015-07-09

    申请号：US14325792

    申请日：2014-07-08

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Kwangkeun Lee ,  Hyun Min Cho ,  Jae Byung Park ,  Jaehyun Cho ,  Sung-Jin Hong ,  Seon-Tae Yoon

    IPC: G09G3/36 ,  G09G3/34 ,  G09G5/10

    CPC classification number: G09G3/3607 ,  G09G3/3413 ,  G09G3/3659 ,  G09G3/3685 ,  G09G5/10 ,  G09G2310/0235 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/0271 ,  G09G2320/0276 ,  G09G2320/04 ,  G09G2330/021 ,  G09G2360/145

    Abstract: A method of driving a liquid crystal display apparatus includes gamma-correcting first and second gray scale data using a first gamma value to generate first and second luminance data; generating sub luminance data based on a smaller value of the first and second luminance data; correcting the sub luminance data using a second gamma value larger than the first gamma value to generate sub correction luminance data; correcting the first luminance data using the sub or second luminance data to generate first correction luminance data; correcting the second luminance data using the sub or first luminance data to generate second correction luminance data; performing inverse gamma correction on the first, second and sub correction luminance data using the first gamma value to generate first, second and sub correction gray scale data; and providing first to third pixels with the first, second, and sub correction gray scale data.

    Abstract translation: 驱动液晶显示装置的方法包括使用第一伽马值对第一和第二灰度数据进行伽马校正，以产生第一和第二亮度数据; 基于所述第一和第二亮度数据的较小值生成子亮度数据; 使用大于所述第一伽玛值的第二伽马值来校正所述副亮度数据，以产生副校正亮度数据; 使用子或第二亮度数据校正第一亮度数据，以产生第一校正亮度数据; 使用子或第一亮度数据校正第二亮度数据，以产生第二校正亮度数据; 使用第一伽玛值对第一，第二和第二校正亮度数据执行反伽马校正，以产生第一，第二和第二校正灰度数据; 以及向第一至第三像素提供第一，第二和第二校正灰度数据。

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