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    Display device
    1.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号：US08314761B2

    公开(公告)日：2012-11-20

    申请号：US13524099

    申请日：2012-06-15

    申请人： Naoki Takada ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Norio Mamba ,  Shinichi Komura

    发明人： Naoki Takada ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Norio Mamba ,  Shinichi Komura

    IPC分类号： G09G5/02 ,  G09G3/36 ,  G09G5/10 ,  G06F15/00

    CPC分类号： G09G3/3607 ,  G09G3/3406 ,  G09G2320/0261 ,  G09G2320/0276 ,  G09G2320/0646 ,  G09G2360/16

    摘要： A processing portion for conversion from RGB to RGBW includes a W generating circuit, a sub-pixel rendering circuit, a W intensity calculating portion which transmits a W intensity setting value to a W generating circuit, and a low power backlight control circuit which expands data on the basis of the RGBW pixels generated by the sub-pixel rendering portion and lowers the backlight in accordance with the amount by which the data is expanded. The inputted RGB data is used as the RGBW data with the W intensity calculated by the W intensity calculating portion. A backlight control signal is generated based on the amount of data expansion in the sub-pixel rendering portion. Deterioration (darkness) of image quality due to a reduction in the brightness of a single color as a result of the conversion from RGB pixels to RGBW pixels is prevented and a reduction in the power is achieved.

    摘要翻译： 用于从RGB转换为RGBW的处理部分包括W发生电路，子像素渲染电路，向W发生电路发送W强度设置值的W强度计算部分和扩展数据的低功率背光控制电路 基于由子像素渲染部分生成的RGBW像素，并且根据数据扩展的量来降低背光。 输入的RGB数据被用作由W强度计算部分计算出的W强度的RGBW数据。 基于子像素渲染部分中的数据扩展量产生背光控制信号。 防止了由于RGB像素向RGBW像素的转换而导致的单色亮度降低导致的图像质量恶化（暗度），并且能够实现功率的降低。

    Display Device
    2.
    发明申请
    Display Device 有权
    显示设备

    公开(公告)号：US20090207182A1

    公开(公告)日：2009-08-20

    申请号：US12353314

    申请日：2009-01-14

    申请人： Naoki Takada ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Norio Mamba ,  Shinichi Komura

    发明人： Naoki Takada ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Norio Mamba ,  Shinichi Komura

    IPC分类号： G09G5/02

    CPC分类号： G09G3/3607 ,  G09G3/3406 ,  G09G2320/0261 ,  G09G2320/0276 ,  G09G2320/0646 ,  G09G2360/16

    摘要： The deterioration (darkness) of image quality due to a reduction in the brightness of a single color as a result of the conversion from RGB pixels to RGBW pixels is prevented and a reduction in the power is achieved. A processing portion for conversion from RGB to RGBW 106 is formed of a W generating circuit 201, which is the same as in the prior art, a sub-pixel rendering circuit 202, a W intensity calculating portion 203 which transmits a W intensity setting value 205 to a W generating circuit 201, and a low power backlight control circuit 204 which expands data on the basis of the RGBW pixels generated by the sub-pixel rendering portion 202 and lowers the backlight in accordance with the amount by which the data is expanded. The inputted RGB data is used as the RGBW data with the W intensity calculated by the W intensity calculating portion 203. A backlight control signal is generated in accordance with the amount of data expansion in the sub-pixel rendering portion 202.

    摘要翻译： 由于由RGB像素转换为RGBW像素而导致的单色亮度降低导致的图像质量的恶化（黑暗）被防止并且能够实现功率的降低。 用于从RGB转换为RGBW 106的处理部分由与现有技术相同的W发生电路201形成为子像素渲染电路202，W强度计算部分203，其发送W强度设定值 205到W发生电路201，以及低功率背光控制电路204，其根据由子像素渲染部分202生成的RGBW像素扩展数据，并根据数据扩展的量降低背光 。 输入的RGB数据被用作由W强度计算部分203计算的W强度的RGBW数据。根据子像素渲染部分202中的数据扩展量来生成背光控制信号。

    Display device
    3.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号：US08232944B2

    公开(公告)日：2012-07-31

    申请号：US12353314

    申请日：2009-01-14

    申请人： Naoki Takada ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Norio Mamba ,  Shinichi Komura

    发明人： Naoki Takada ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Norio Mamba ,  Shinichi Komura

    IPC分类号： G09G5/02 ,  G09G3/36 ,  G09G5/10 ,  G06F15/00

    CPC分类号： G09G3/3607 ,  G09G3/3406 ,  G09G2320/0261 ,  G09G2320/0276 ,  G09G2320/0646 ,  G09G2360/16

    摘要： The deterioration (darkness) of image quality due to a reduction in the brightness of a single color as a result of the conversion from RGB pixels to RGBW pixels is prevented and a reduction in the power is achieved.A processing portion for conversion from RGB to RGBW 106 is formed of a W generating circuit 201, which is the same as in the prior art, a sub-pixel rendering circuit 202, a W intensity calculating portion 203 which transmits a W intensity setting value 205 to a W generating circuit 201, and a low power backlight control circuit 204 which expands data on the basis of the RGBW pixels generated by the sub-pixel rendering portion 202 and lowers the backlight in accordance with the amount by which the data is expanded. The inputted RGB data is used as the RGBW data with the W intensity calculated by the W intensity calculating portion 203. A backlight control signal is generated in accordance with the amount of data expansion in the sub-pixel rendering portion 202.

    摘要翻译： 由于由RGB像素转换为RGBW像素而导致的单色亮度降低导致的图像质量的恶化（黑暗）被防止并且能够实现功率的降低。 用于从RGB转换为RGBW 106的处理部分由与现有技术相同的W发生电路201形成为子像素渲染电路202，W强度计算部分203，其发送W强度设定值 205到W发生电路201，以及低功率背光控制电路204，其根据由子像素渲染部分202生成的RGBW像素扩展数据，并根据数据扩展的量降低背光 。 输入的RGB数据被用作由W强度计算部分203计算的W强度的RGBW数据。根据子像素渲染部分202中的数据扩展量来生成背光控制信号。

    DISPLAY DEVICE
    4.
    发明申请
    DISPLAY DEVICE 有权
    显示设备

    公开(公告)号：US20120249613A1

    公开(公告)日：2012-10-04

    申请号：US13524099

    申请日：2012-06-15

    申请人： Naoki TAKADA ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Norio Mamba ,  Shinichi Komura

    发明人： Naoki TAKADA ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Norio Mamba ,  Shinichi Komura

    IPC分类号： G09G5/10

    CPC分类号： G09G3/3607 ,  G09G3/3406 ,  G09G2320/0261 ,  G09G2320/0276 ,  G09G2320/0646 ,  G09G2360/16

    摘要： A processing portion for conversion from RGB to RGBW includes a W generating circuit, a sub-pixel rendering circuit, a W intensity calculating portion which transmits a W intensity setting value to a W generating circuit, and a low power backlight control circuit which expands data on the basis of the RGBW pixels generated by the sub-pixel rendering portion and lowers the backlight in accordance with the amount by which the data is expanded. The inputted RGB data is used as the RGBW data with the W intensity calculated by the W intensity calculating portion. A backlight control signal is generated based on the amount of data expansion in the sub-pixel rendering portion. Deterioration (darkness) of image quality due to a reduction in the brightness of a single color as a result of the conversion from RGB pixels to RGBW pixels is prevented and a reduction in the power is achieved.

    摘要翻译： 用于从RGB转换为RGBW的处理部分包括W发生电路，子像素渲染电路，向W发生电路发送W强度设置值的W强度计算部分和扩展数据的低功率背光控制电路 基于由子像素渲染部分生成的RGBW像素，并且根据数据扩展的量来降低背光。 输入的RGB数据被用作由W强度计算部分计算出的W强度的RGBW数据。 基于子像素渲染部分中的数据扩展量产生背光控制信号。 防止了由于RGB像素向RGBW像素的转换而导致的单色亮度降低导致的图像质量恶化（暗度），并且能够实现功率的降低。

    Display driver
    6.
    发明授权
    Display driver 有权
    显示驱动程序

    公开(公告)号：US08754841B2

    公开(公告)日：2014-06-17

    申请号：US13734144

    申请日：2013-01-04

    申请人： Naoki Takada ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Goro Sakamaki

    发明人： Naoki Takada ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Goro Sakamaki

    IPC分类号： G09G3/34 ,  G02F1/13357

    CPC分类号： G09G3/3413 ,  G09G3/3406 ,  G09G5/10 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/0653 ,  G09G2330/021 ,  G09G2360/144 ,  G09G2360/16

    摘要： In a display driver, a first backlight control unit using a histogram and a second backlight control unit using an optical sensor can be used in combination. The display driver includes a PWM generating unit setting a control signal value consisting of a product of a luminance rate of X % and a luminance rate of Y % as a luminance rate of a control signal for controlling a backlight with respect to maximum backlight luminance when a luminance rate of a control signal obtained by first backlight control with respect to the maximum backlight luminance is X % and a luminance rate of a control signal obtained by second backlight control with respect to the maximum backlight luminance is Y %.

    摘要翻译： 在显示驱动器中，可以组合使用使用直方图的第一背光控制单元和使用光学传感器的第二背光控制单元。 显示驱动器包括PWM生成单元，其将由X％的亮度率和Y％的亮度率的乘积构成的控制信号值作为用于控制背光源的控制信号的亮度率相对于最大背光亮度而设置， 通过相对于最大背光亮度的第一背光控制获得的控制信号的亮度率为X％，并且通过相对于最大背光亮度的第二背光控制获得的控制信号的亮度率为Y％。

    DISPLAY DRIVER
    8.
    发明申请
    DISPLAY DRIVER 审中-公开
    显示驱动器

    公开(公告)号：US20080079756A1

    公开(公告)日：2008-04-03

    申请号：US11779673

    申请日：2007-07-18

    申请人： Akihito Akai ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Goro Sakamaki ,  Hiroki Awakura ,  Naoki Takada

    发明人： Akihito Akai ,  Yasuyuki Kudo ,  Yoshiki Kurokawa ,  Goro Sakamaki ,  Hiroki Awakura ,  Naoki Takada

    IPC分类号： G09G5/10

    CPC分类号： G09G3/3406 ,  G09G3/3688 ,  G09G2320/0261 ,  G09G2320/0613 ,  G09G2320/0626 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2340/145 ,  G09G2360/16

    摘要： A liquid crystal driver of liquid crystal display device in which a plurality of expansion/contraction ratios of display data, for example, two kinds of expansion/contraction ratios can be set in a register is provided. Further, the two kinds of expansion/contraction ratios are applicable respectively in two kinds of areas (still-image and video-image) whose coordinates are previously set in a liquid crystal panel. As a result, it is possible to make the still-image area and the video-image area have different expansion/contraction ratios of pixel value respectively. In this manner, it is possible to make display brightness high only in the video-image area, thereby realizing both lower power consumption and visibility improvement at the same time.

    摘要翻译： 提供了一种液晶显示装置的液晶驱动器，其中可以在寄存器中设置显示数据的多个扩展/缩小比例，例如两种扩展/缩放比。 此外，两种扩张/收缩率分别适用于在液晶面板中预先设定坐标的两种区域（静止图像和视频图像）。 结果，可以使静止图像区域和视频图像区域分别具有不同的像素值的扩展/缩小比率。 以这种方式，可以仅在视频图像区域中使显示亮度高，从而同时实现较低的功耗和可见度提高。

    Display drive circuit
    9.
    发明授权
    Display drive circuit 有权
    显示驱动电路

    公开(公告)号：US08154560B2

    公开(公告)日：2012-04-10

    申请号：US12468345

    申请日：2009-05-19

    申请人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Hiroyuki Nitta ,  Kazuki Homma ,  Junya Takeda

    发明人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Hiroyuki Nitta ,  Kazuki Homma ,  Junya Takeda

    IPC分类号： G09G5/00 ,  G09G5/02 ,  H04N1/46 ,  H04N1/60 ,  G06T1/00 ,  G06K9/00 ,  G06K9/40

    CPC分类号： G09G1/002 ,  G09G3/3655 ,  G09G5/04 ,  G09G5/06 ,  G09G2320/0242 ,  G09G2340/145

    摘要： A display drive circuit of the invention has: an initial-color-gamut-apex-coordinate-storing unit capable of storing initial color gamut apex coordinates; a user-target-color-gamut-apex-coordinate-storing unit capable of storing user target color gamut apex coordinates; a saturation-expansion-coefficient-deciding unit for deciding expansion coefficients of saturation data based on the initial and user target color gamut apex coordinates; and an expansion unit for expanding saturations of display data based on the saturation expansion coefficients. The expansion coefficients of saturation data are decided based on the initial and user target color gamut apex coordinates, and saturations of display data are expanded according to the expansion coefficients. Thus, the degree of expanding the saturations can be controlled for each color gamut or each of R, G and B color properties of an LC display panel.

    摘要翻译： 本发明的显示驱动电路具有：能够存储初始色域顶点坐标的初始色域 - 顶点坐标存储单元; 能够存储用户目标色域顶点坐标的用户对象色彩 - 顶点坐标存储单元; 饱和扩张系数决定单元，用于基于初始和用户目标色域顶点坐标来确定饱和度数据的扩展系数; 以及用于基于饱和度膨胀系数扩大显示数据的饱和度的扩展单元。 基于初始和用户目标色域顶点坐标来确定饱和度数据的扩展系数，根据扩展系数扩展显示数据的饱和度。 因此，可以对于每个色域或LC显示面板的R，G和B颜色属性中的每一个来控制饱和度的扩大程度。

    Display driving circuit
    10.
    发明申请
    Display driving circuit 审中-公开
    显示驱动电路

    公开(公告)号：US20070097069A1

    公开(公告)日：2007-05-03

    申请号：US11546250

    申请日：2006-10-12

    申请人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Toshiyuki Kumagai ,  Goro Sakamaki

    发明人： Yoshiki Kurokawa ,  Yasuyuki Kudo ,  Toshiyuki Kumagai ,  Goro Sakamaki

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3406 ,  G09G3/2092 ,  G09G3/3611 ,  G09G2320/0247 ,  G09G2320/0271 ,  G09G2320/04 ,  G09G2320/0633 ,  G09G2320/0646 ,  G09G2320/0653 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2360/16 ,  G09G2360/18

    摘要： In a display driving circuit according to the present invention, not all the pixel values (example : 0˜255) but only the values (example : 179˜255) of the significant partial range (N˜100%) have data of histogram of pixels of an image as a partial histogram, and when the pixel (Ds) at the significant t% rank order of the entire histogram is within the range of the partial histogram, the display driving circuit performs its operation in the same manner as in the case where it has the entire histogram, and when the pixel (Ds) is out of the range, the display driving circuit uses the range minimum value (N) in the place of the pixel of the significant t% rank order and performs its operation.

    摘要翻译： 在根据本发明的显示驱动电路中，并非所有像素值（例如：0〜255），而只有有效部分范围（N〜100％）的值（例如：179〜255）具有 作为部分直方图的图像的像素，并且当整个直方图的显着t％等级的像素（Ds）在部分直方图的范围内时，显示驱动电路以与 其具有整个直方图的情况，并且当像素（Ds）超出该范围时，显示驱动电路使用代表有效t％等级次序的像素的范围最小值（N）并执行其操作 。