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1. 发明授权

US08314761B2 Display device 有权
标题翻译：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。

2. 发明申请

US20090207182A1 Display Device 有权
标题翻译：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。

3. 发明授权

US08232944B2 Display device 有权
标题翻译：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。

4. 发明授权

US09646552B2 Display device with a source signal generating circuit 有权
公开(公告)号：US09646552B2
公开(公告)日：2017-05-09
申请号：US12314380
申请日：2008-12-09
申请人： Naoki Takada , Yasuyuki Kudo , Norio Mamba , Takuya Eriguchi , Tsutomu Furuhashi , Shinichi Iwasaki
发明人： Naoki Takada , Yasuyuki Kudo , Norio Mamba , Takuya Eriguchi , Tsutomu Furuhashi , Shinichi Iwasaki
IPC分类号： G09G3/36
CPC分类号： G09G3/3648 , G09G3/3614 , G09G2310/08 , G09G2320/0233 , G09G2320/0257
摘要： In RGB time division drives, there is capacitor coupling due to the effects of fluctuation in the drain lines, and thus, the image quality deteriorates (lateral smearing), so that the display brightness becomes different from the desired display brightness due to delay in the convergence of the fluctuation of the common potential, and thus, it is a goal to prevent the image quality from deteriorating (lateral smearing). In RGB time division drives, the order of time division is switched for each frame, or in the direction of the horizontal lines.

5. 发明申请

US20090046046A1 Display device 有权
标题翻译：显示设备
公开(公告)号：US20090046046A1
公开(公告)日：2009-02-19
申请号：US12155951
申请日：2008-06-12
申请人： Norio Mamba , Naoki Takada , Yasuyuki Kudo , Tsutomu Furuhashi
发明人： Norio Mamba , Naoki Takada , Yasuyuki Kudo , Tsutomu Furuhashi
IPC分类号： G09G3/36
CPC分类号： G09G3/3413 , G09G3/3406 , G09G3/3611 , G09G2320/0242 , G09G2320/0646 , G09G2320/0666 , G09G2330/021 , G09G2340/06 , G09G2360/16
摘要： An image processing unit (2 in FIG. 1) discards a high gray level side of input image data (RiGiBi) in accordance with a chroma coefficient (Csc), thereby to generate a signal of lowered chroma, and it expands the signal into output image data (RoGoBo) of full scale. Besides, the image processing unit (2) generates an image adjustment parameter (Th) and performs a control so as to reduce power of backlight (6), in interlocking with the full-scale expansion.
摘要翻译：图像处理单元（图1中的2）根据色度系数（Csc）丢弃输入图像数据（RiGiBi）的高灰度侧，从而生成降低色度的信号，并且将信号扩展成输出图像数据（RoGoBo）全尺寸。此外，图像处理单元（2）产生图像调整参数（Th），并且进行控制以便与全尺寸展开互锁来降低背光（6）的功率。

6. 发明授权

US08493305B2 Display device 有权
公开(公告)号：US08493305B2
公开(公告)日：2013-07-23
申请号：US12155951
申请日：2008-06-12
申请人： Norio Mamba , Naoki Takada , Yasuyuki Kudo , Tsutomu Furuhashi
发明人： Norio Mamba , Naoki Takada , Yasuyuki Kudo , Tsutomu Furuhashi
IPC分类号： G09G3/18
CPC分类号： G09G3/3413 , G09G3/3406 , G09G3/3611 , G09G2320/0242 , G09G2320/0646 , G09G2320/0666 , G09G2330/021 , G09G2340/06 , G09G2360/16
摘要： An image processing unit (2 in FIG. 1) discards a high gray level side of input image data (RiGiBi) in accordance with a chroma coefficient (Csc), thereby to generate a signal of lowered chroma, and it expands the signal into output image data (RoGoBo) of full scale. Besides, the image processing unit (2) generates an image adjustment parameter (Th) and performs a control so as to reduce power of backlight (6), in interlocking with the full-scale expansion.

7. 发明授权

US08957845B2 Display device 有权
公开(公告)号：US08957845B2
公开(公告)日：2015-02-17
申请号：US13929344
申请日：2013-06-27
申请人： Norio Mamba , Naoki Takada , Yasuyuki Kudo , Tsutomu Furuhashi
发明人： Norio Mamba , Naoki Takada , Yasuyuki Kudo , Tsutomu Furuhashi
IPC分类号： G09G3/18 , G09G3/34 , G09G3/36
CPC分类号： G09G3/3413 , G09G3/3406 , G09G3/3611 , G09G2320/0242 , G09G2320/0646 , G09G2320/0666 , G09G2330/021 , G09G2340/06 , G09G2360/16
摘要： An image processing unit (2 in FIG. 1) discards a high gray level side of input image data (RiGiBi) in accordance with a chroma coefficient (Csc), thereby to generate a signal of lowered chroma, and it expands the signal into output image data (RoGoBo) of full scale. Besides, the image processing unit (2) generates an image adjustment parameter (Th) and performs a control so as to reduce power of backlight (6), in interlocking with the full-scale expansion.

8. 发明申请

US20090146938A1 Display device 有权
标题翻译：显示设备
公开(公告)号：US20090146938A1
公开(公告)日：2009-06-11
申请号：US12314380
申请日：2008-12-09
申请人： Naoki Takada , Yasuyuki Kudo , Norio Mamba , Takuya Eriguchi , Tsutomu Furuhashi , Shinichi Iwasaki
发明人： Naoki Takada , Yasuyuki Kudo , Norio Mamba , Takuya Eriguchi , Tsutomu Furuhashi , Shinichi Iwasaki
IPC分类号： G09G3/36
CPC分类号： G09G3/3648 , G09G3/3614 , G09G2310/08 , G09G2320/0233 , G09G2320/0257
摘要： In RGB time division drives, there is capacitor coupling due to the effects of fluctuation in the drain lines, and thus, the image quality deteriorates (lateral smearing), so that the display brightness becomes different from the desired display brightness due to delay in the convergence of the fluctuation of the common potential, and thus, it is a goal to prevent the image quality from deteriorating (lateral smearing).In RGB time division drives, the order of time division is switched for each frame, or in the direction of the horizontal lines.
摘要翻译：在RGB时分驱动器中，由于漏极线的波动的影响，存在电容器耦合，因此图像质量恶化（侧向拖尾），使得显示亮度变得与期望的显示亮度不同，这是由于延迟共同潜力的波动收敛，因此，防止图像质量恶化（横向拖尾）的目标是。在RGB时分驱动器中，对于每个帧或在水平线的方向上切换时分顺序。

9. 发明授权

US08552946B2 Display device, display driver and image display method 有权
标题翻译：显示设备，显示驱动程序和图像显示方法
公开(公告)号：US08552946B2
公开(公告)日：2013-10-08
申请号：US12108583
申请日：2008-04-24
申请人： Yoshiki Kurokawa , Yukari Katayama , Hiroki Awakura , Naoki Takada , Yasuyuki Kudo , Akihito Akai , Goki Toshima , Akihisa Aoyama , Goro Sakamaki
发明人： Yoshiki Kurokawa , Yukari Katayama , Hiroki Awakura , Naoki Takada , Yasuyuki Kudo , Akihito Akai , Goki Toshima , Akihisa Aoyama , Goro Sakamaki
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G3/3611 , G09G2320/0276 , G09G2320/064 , G09G2320/0646 , G09G2320/0653 , G09G2320/066 , G09G2330/021 , G09G2360/145 , G09G2360/16
摘要： In a display device and a display driver, when a grayscale of a display image is equal to or lower than a specific grayscale value obtained from a histogram of the display image, a display grayscale is extended with a linear function. On the other hand, when a grayscale of a display image is equal to or higher than the specific grayscale value, histogram equalization of a part higher than the specific grayscale value is performed, and the display grayscale is extended with a non-linear function obtained from the histogram equalization.
摘要翻译：在显示装置和显示驱动器中，当显示图像的灰阶等于或低于从显示图像的直方图获得的特定灰度值时，以线性函数扩展显示灰度级。另一方面，当显示图像的灰阶等于或高于特定灰度值时，执行高于特定灰度值的部分的直方图均衡，并且利用获得的非线性函数来扩展显示灰度级从直方图均衡。

10. 发明申请

US20080079756A1 DISPLAY DRIVER 审中-公开
标题翻译：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。

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