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    Driving System For Active-Matrix Displays
    1.
    发明申请
    Driving System For Active-Matrix Displays 有权
    主动矩阵显示驱动系统

    公开(公告)号：US20110069096A1

    公开(公告)日：2011-03-24

    申请号：US12878439

    申请日：2010-09-09

    申请人： Kongning Li ,  Vasudha Gupta ,  Gholamreza Chaji ,  Arokia Nathan

    发明人： Kongning Li ,  Vasudha Gupta ,  Gholamreza Chaji ,  Arokia Nathan

    IPC分类号： G09G5/10

    CPC分类号： G09G3/2081 ,  G09G3/2022 ,  G09G3/3225 ,  G09G2320/0276 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2360/144 ,  G09G2360/16

    摘要： A system is provided for using raw grayscale image data, representing images to be displayed in successive frames, to drive a display having pixels that include a drive transistor and an organic light emitting device. The system defines high and low ranges of raw grayscale image data, and determines whether the raw grayscale image data for each pixel falls within the high range or the low range. Raw grayscale image data that falls within the low range is converted to higher grayscale values, and the pixels are driven with currents corresponding to the higher grayscale values during time periods that are shorter than complete frame time periods. Raw grayscale image data that falls within the high range is converted to higher grayscale values, and the pixels are driven with currents corresponding to the higher grayscale values during time periods that are shorter than complete frame time periods and different from the time periods of the low range image data. When the raw grayscale image data is adjusted according to a preselected gamma curve before using that data to drive the pixels, the high and low ranges may be selected according to how well the gamma curve corrects the raw grayscale image data within the ranges.

    摘要翻译： 提供了一种系统，用于使用原始灰度级图像数据，表示要在连续帧中显示的图像，以驱动具有包括驱动晶体管和有机发光装置的像素的显示。 该系统定义原始灰度级图像数据的高范围和低范围，并确定每个像素的原始灰度图像数据是否落在高范围或低范围内。 落在低范围内的原始灰度图像数据被转换为较高的灰度值，并且在比完整帧时间段短的时间段期间，以对应于较高灰度值的电流驱动像素。 落在高范围内的原始灰度图像数据被转换为较高的灰度值，并且在比完整的帧时间段短的时间段内与不同于低的时间段的时间段内的较高灰度值的电流驱动像素 范围图像数据。 当在使用该数据驱动像素之前根据预先选择的伽马曲线调整原始灰度图像数据时，可以根据伽马曲线如何校正范围内的原始灰度图像数据来选择高和低范围。

    METHOD AND SYSTEM FOR DRIVING LIGHT EMITTING DISPLAY
    2.
    发明申请
    METHOD AND SYSTEM FOR DRIVING LIGHT EMITTING DISPLAY 有权
    用于驱动发光显示的方法和系统

    公开(公告)号：US20100039453A1

    公开(公告)日：2010-02-18

    申请号：US12510780

    申请日：2009-07-28

    申请人： G. Reza Chaji ,  Kongning Li ,  Vasudha Gupta ,  Arokia Nathan

    发明人： G. Reza Chaji ,  Kongning Li ,  Vasudha Gupta ,  Arokia Nathan

    IPC分类号： G09G5/10

    CPC分类号： G09G3/3696 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0452 ,  G09G2310/0218 ,  G09G2310/0267 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0294 ,  G09G2310/0297 ,  G09G2320/0276 ,  G09G2320/0673

    摘要： A display system and its driving method is provided. The system includes: a driver for operating a panel having a plurality of pixels arranged by a plurality of first lines and at least one second line, the driver including: a driver output unit for providing to the panel a single driver output for activating the plurality of first lines, the single driver output being demultiplexed on the panel to activate each first line. The system includes: a driver for operating a panel having a plurality of pixels arranged by a plurality of data lines and at least one scan line, the driver including: a shift register unit including a plurality of shift registers; a latch and shift register unit including a plurality of latch and shift circuits for the plurality of shift registers, each storing an image signal from the corresponding shift register or shifting the image signal to a next latch and shift circuit; and a decoder unit including at least one decoder coupled to one of the latch and shift circuits, for decoding the image signal latched in the one of the latch and shift circuit to provide a driver output. The system includes: a driver for operating a panel having a plurality of pixels, the driver including: a plurality of multiplexers for a plurality of offset gamma curve sections, each offset gamma curve section having a first range less than a second range of a main gamma curve, at least one of offset gamma curve sections being offset by a predetermined voltage from a corresponding section of the main gamma curve; a plurality of decoders for the plurality of multiplexers; and an output buffer for providing a driver output based on the output from the decoder and the predetermined voltage.

    摘要翻译： 提供了显示系统及其驱动方法。 该系统包括：用于操作具有由多个第一线和至少一条第二线布置的多个像素的面板的驱动器，所述驱动器包括：驱动器输出单元，用于向面板提供用于激活多个第一线的单个驱动器输出 的第一行，单个驱动器输出在面板上解复用以激活每个第一行。 该系统包括：驱动器，用于操作具有由多个数据线和至少一条扫描线布置的多个像素的面板，所述驱动器包括：移位寄存器单元，包括多个移位寄存器; 锁存器和移位寄存器单元，其包括用于多个移位寄存器的多个锁存和移位电路，每个存储来自相应的移位寄存器的图像信号或将图像信号移位到下一个锁存和移位电路; 以及解码器单元，包括耦合到所述锁存器和移位电路中的一个的至少一个解码器，用于对锁存在所述锁存器和移位电路中的一个中的所述图像信号进行解码以提供驱动器输出。 该系统包括：用于操作具有多个像素的面板的驱动器，所述驱动器包括：用于多个偏移伽马曲线部分的多个多路复用器，每个偏移伽马曲线部分具有小于主要第二范围的第一范围 γ曲线，偏移伽马曲线段中的至少一个偏移来自主伽马曲线的对应部分的预定电压; 用于所述多个多路复用器的多个解码器; 以及输出缓冲器，用于基于来自解码器的输出和预定电压来提供驱动器输出。

    Driving system for active-matrix displays
    5.
    发明授权
    Driving system for active-matrix displays 有权
    有源矩阵显示驱动系统

    公开(公告)号：US09093019B2

    公开(公告)日：2015-07-28

    申请号：US12878439

    申请日：2010-09-09

    申请人： Kongning Li ,  Vasudha Gupta ,  Gholamreza Chaji ,  Arokia Nathan

    发明人： Kongning Li ,  Vasudha Gupta ,  Gholamreza Chaji ,  Arokia Nathan

    IPC分类号： G09G3/22 ,  G09G3/20 ,  G09G3/32

    CPC分类号： G09G3/2081 ,  G09G3/2022 ,  G09G3/3225 ,  G09G2320/0276 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2360/144 ,  G09G2360/16

    摘要： A system is provided for using raw grayscale image data, representing images to be displayed in successive frames, to drive a display having pixels that include a drive transistor and an organic light emitting device. The system determines whether the raw grayscale image data for each pixel falls within a high range or a low range. Raw grayscale image data that falls within the low range is converted to higher grayscale values, and the pixels are driven with currents corresponding to the higher grayscale values during time periods that are shorter than complete frame time periods. Raw grayscale image data that falls within the high range is converted to higher grayscale values, and the pixels are driven with currents corresponding to the higher grayscale values during time periods that are shorter than complete frame time periods and different from the time periods of the low range image data.

    摘要翻译： 提供了一种系统，用于使用原始灰度级图像数据，表示要在连续帧中显示的图像，以驱动具有包括驱动晶体管和有机发光装置的像素的显示。 系统确定每个像素的原始灰度图像数据是否落在高范围或低范围内。 落在低范围内的原始灰度图像数据被转换为较高的灰度值，并且在比完整帧时间段短的时间段期间，以对应于较高灰度值的电流驱动像素。 落在高范围内的原始灰度图像数据被转换为较高的灰度值，并且在比完整的帧时间段短的时间段内与不同于低的时间段的时间段内的较高灰度值的电流驱动像素 范围图像数据。

    Driving system for active-matrix displays
    6.
    发明授权
    Driving system for active-matrix displays 有权
    有源矩阵显示驱动系统

    公开(公告)号：US08937632B2

    公开(公告)日：2015-01-20

    申请号：US13365391

    申请日：2012-02-03

    申请人： Kongning Li ,  Vasudha Gupta ,  Gholamreza Chaji ,  Arokia Nathan

    发明人： Kongning Li ,  Vasudha Gupta ,  Gholamreza Chaji ,  Arokia Nathan

    IPC分类号： G09G5/10 ,  G09G3/30

    CPC分类号： G09G3/3233 ,  G09G3/2022 ,  G09G3/2081 ,  G09G3/3225 ,  G09G2320/0276 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2360/144 ,  G09G2360/16

    摘要： Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.

    摘要翻译： 用于表示要在连续帧中显示的图像的原始灰度图像数据用于通过将每个帧划分成至少第一和第二帧来驱动具有包括驱动晶体管和有机发光器件的像素的显示器，并且提供每个像素 驱动电流在第一子帧中比在第二子帧中高于在第一预选范围内的原始灰度值的驱动电流，并且在第二子帧中比在第一子帧中对于原始灰度值的驱动电流高 第二个预选范围。 显示器可以是有源矩阵显示器，例如AMOLED显示器。