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1. 发明授权

US08154560B2 Display drive circuit 有权
标题翻译：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。

2. 发明授权

US08633951B2 Display system 有权
标题翻译：显示系统
公开(公告)号：US08633951B2
公开(公告)日：2014-01-21
申请号：US13684676
申请日：2012-11-26
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 , G06T1/00 , G06K9/00 , G06K9/40 , H04N1/40 , H04N1/46 , H04N5/46 , H04N9/30 , H04N9/28
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。

3. 发明授权

US08345072B2 Display system 有权
标题翻译：显示系统
公开(公告)号：US08345072B2
公开(公告)日：2013-01-01
申请号：US13423315
申请日：2012-03-19
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 , G06T1/00 , G06K9/00 , G06K9/40 , H04N1/60 , H04N1/46
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。

4. 发明申请

US20130076806A1 DISPLAY SYSTEM 有权
标题翻译：显示系统
公开(公告)号：US20130076806A1
公开(公告)日：2013-03-28
申请号：US13684676
申请日：2012-11-26
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： G09G1/00
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。

5. 发明申请

US20120176400A1 DISPLAY SYSTEM 有权
标题翻译：显示系统
公开(公告)号：US20120176400A1
公开(公告)日：2012-07-12
申请号：US13423315
申请日：2012-03-19
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： G09G3/36 , G09G5/10 , G09G5/02
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。

6. 发明授权

US08754841B2 Display driver 有权
标题翻译：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％。

7. 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。

8. 发明申请

US20080272999A1 DISPLAY DEVICE, DISPLAY DRIVER AND IMAGE DISPLAY METHOD 有权
标题翻译：显示设备，显示驱动器和图像显示方法
公开(公告)号：US20080272999A1
公开(公告)日：2008-11-06
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 Toshimi , Akihisa Aoyama , Goro Sakamaki
发明人： Yoshiki Kurokawa , Yukari Katayama , Hiroki Awakura , Naoki Takada , Yasuyuki Kudo , Akihito Akai , Goki Toshimi , 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。

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。

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