公开(公告)号：US08780029B2

公开(公告)日：2014-07-15

申请号：US13119978

申请日：2009-09-18

申请人： Kozo Nakamura ,  Shun Ueki ,  Kazunari Tomizawa ,  Tomohiko Mori ,  Yuichi Yoshida

发明人： Kozo Nakamura ,  Shun Ueki ,  Kazunari Tomizawa ,  Tomohiko Mori ,  Yuichi Yoshida

IPC分类号： G09G3/36 ,  G06F3/038 ,  G09G5/00 ,  G09G5/10 ,  G09G5/02

CPC分类号： G09G3/3655 ,  G02F2201/52 ,  G09G2300/0426 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/028 ,  G09G2340/06

摘要： A multiprimary liquid crystal display device in which deteriorations in display quality caused by the coloration of a gray representation when viewed from an oblique direction are suppressed, and a signal conversion circuit for use in such a multiprimary liquid crystal display device are provided.A signal conversion circuit according to the present invention is for use in a multiprimary liquid crystal display device, the multiprimary liquid crystal display device having a pixel defined by a plurality of subpixels including a red subpixel, a green subpixel, a blue subpixel, and a yellow subpixel, and performing multicolor display by using four or more primary colors to be displayed by the plurality of subpixels, the signal conversion circuit converting an input video signal to a multiprimary signal corresponding to four or more primary colors. When a video signal for the pixel to display a gray color having a normalized luminance of no less than 0.2 and no more than 0.3 is input, the signal conversion circuit according to the present invention performs a conversion of the video signal so that, among the normalized luminances of the plurality of subpixels, the yellow subpixel has the lowest normalized luminance.

摘要翻译： 抑制了从倾斜方向观察时由灰色表示着色引起的显示质量恶化的多原色液晶显示装置，并且提供了用于这种多原色液晶显示装置的信号转换电路。 根据本发明的信号转换电路用于多原色液晶显示装置中，所述多原色液晶显示装置具有由包括红色子像素，绿色子像素，蓝色子像素和多个子像素的多个子像素所限定的像素 黄色子像素，并且通过使用由多个子像素显示的四个或更多个原色进行多色显示，信号转换电路将输入视频信号转换为对应于四个或更多原色的多原色信号。 当输入用于显示具有不小于0.2且不大于0.3的归一化亮度的灰度的像素的视频信号时，根据本发明的信号转换电路执行视频信号的转换，使得在 多个子像素的归一化亮度，黄色子像素具有最低归一化亮度。

公开(公告)号：US08675031B2

公开(公告)日：2014-03-18

申请号：US13503421

申请日：2010-10-26

申请人： Kohzoh Nakamura ,  Shun Ueki ,  Kazunari Tomizawa ,  Tomohiko Mori ,  Yuichi Yoshida

发明人： Kohzoh Nakamura ,  Shun Ueki ,  Kazunari Tomizawa ,  Tomohiko Mori ,  Yuichi Yoshida

IPC分类号： G09G5/02

CPC分类号： G02B5/201

摘要： A liquid crystal display device according to the present invention comprises a pixel including a plurality of sub pixels. The plurality of sub pixels include a red sub pixel (R), a green sub pixel (G), a blue sub pixel (B), a yellow sub pixel (Ye) and a cyan sub pixel (C). The aperture area size of one of the cyan sub pixel (C) and the blue sub pixel (B) is larger than the aperture area size of any of the other of the cyan (C) and blue (B) sub pixels, the green sub pixel (G) and the yellow sub pixel (Ye); and the aperture area size of the red sub pixel (R) is larger than the aperture area size of any of the other of the cyan (C) and blue (B) sub pixels, the green sub pixel (G), and the yellow sub pixel (Ye).

摘要翻译： 根据本发明的液晶显示装置包括具有多个子像素的像素。 多个子像素包括红色子像素（R），绿色子像素（G），蓝色子像素（B），黄色子像素（Ye）和青色子像素（C）。 青色子像素（C）和蓝色子像素（B）中的一个的开口面积尺寸大于青色（C）和蓝色（B）子像素中的任一个的开口面积尺寸，绿色 子像素（G）和黄色子像素（Ye）; 并且红色子像素（R）的开口面积尺寸大于青色（C）和蓝色（B）子像素，绿色子像素（G）和黄色子像素（G）中的任一个的开口面积尺寸 子像素（Ye）。

公开(公告)号：US20130271356A1

公开(公告)日：2013-10-17

申请号：US13976150

申请日：2011-12-22

申请人： Yuichi Yoshida ,  Tomohiko Mori ,  Kazunari Tomizawa ,  Kohzoh Nakamura ,  Shun Ueki

发明人： Yuichi Yoshida ,  Tomohiko Mori ,  Kazunari Tomizawa ,  Kohzoh Nakamura ,  Shun Ueki

IPC分类号： G09G3/20

CPC分类号： G09G3/2003 ,  G09G3/3611 ,  G09G2300/0452 ,  G09G2320/0666 ,  G09G2340/06 ,  H04N9/67

摘要： A signal conversion circuit (20) is used for a multiple-primary color liquid crystal display device (100) which performs color display using four primary colors of red displayed by a red-sub pixel (R), green displayed by green-sub pixel (G), blue displayed by blue-sub pixel (B), and yellow displayed by yellow-sub pixel (Ye), and converts an input three-primary color video signal into a multiple-primary color video signal corresponding to four primary colors. The signal conversion circuit (20) performs signal conversion such that a gray scale level of the yellow-sub pixel (Ye) is higher than a gray scale level of the green-sub pixel (G) in at least some cases from among cases in which a red gray-scale level r, a green gray-scale level g, and a blue gray-scale level b which are displayed by the three-primary color video signal satisfy a relationship of r>g>b.

摘要翻译： 信号转换电路（20）用于使用由红色子像素（R）显示的红色的四原色进行彩色显示的多原色液晶显示装置（100），由绿色子像素显示的绿色 （G），由蓝色子像素（B）显示的蓝色，以及由黄色子像素（Ye）显示的黄色，并将输入的三原色视频信号转换成对应于四个基色的多原色视频信号 。 信号变换电路（20）进行信号变换，使得黄色子像素（Ye）的灰度级别比绿色子像素（G）的灰度级水平高于至少一些情况下的绿色子像素（G）的灰度级 由三原色视频信号显示的红色灰度级r，绿色灰度级g和蓝色灰度级b满足r> g> b的关系。

公开(公告)号：US08436875B2

公开(公告)日：2013-05-07

申请号：US13128884

申请日：2009-11-05

申请人： Shun Ueki ,  Kozo Nakamura ,  Tomohiko Mori ,  Kazunari Tomizawa ,  Yuichi Yoshida

发明人： Shun Ueki ,  Kozo Nakamura ,  Tomohiko Mori ,  Kazunari Tomizawa ,  Yuichi Yoshida

IPC分类号： G09G5/10

CPC分类号： H04N9/64 ,  G02F1/133514 ,  G02F2201/52 ,  G09G3/3607 ,  G09G5/06 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2340/06

摘要： A multiple primary color display device which suppresses the reduction in the display quality when an input signal corresponding to green in an sRGB color space is input from outside is provided. A display device according to the present invention has a pixel defined by a plurality of sub pixels. The plurality of sub pixels include at least a red sub pixel for displaying red, a green sub pixel for displaying green, a blue sub pixel for displaying blue, and a yellow sub pixel for displaying yellow. When an input signal corresponding to green in the sRGB color space is input from outside, the display device according to the present invention provides display using the yellow sub pixel in addition to the green sub pixel.

摘要翻译： 提供了从外部输入与sRGB颜色空间中的绿色对应的输入信号时抑制显示质量降低的多原色显示装置。 根据本发明的显示装置具有由多个子像素限定的像素。 多个子像素至少包括用于显示红色的红色子像素，用于显示绿色的绿色子像素，用于显示蓝色的蓝色子像素和用于显示黄色的黄色子像素。 当从外部输入对应于sRGB色彩空间中的绿色的输入信号时，根据本发明的显示装置除了绿色子像素之外还提供使用黄色子像素的显示。

公开(公告)号：US08576261B2

公开(公告)日：2013-11-05

申请号：US13133714

申请日：2009-12-08

申请人： Yuichi Yoshida ,  Kazunari Tomizawa ,  Tomohiko Mori ,  Kozo Nakamura ,  Shun Ueki

发明人： Yuichi Yoshida ,  Kazunari Tomizawa ,  Tomohiko Mori ,  Kozo Nakamura ,  Shun Ueki

IPC分类号： G09G5/10 ,  G09G3/36

CPC分类号： G09G3/3648 ,  G09G5/026 ,  G09G5/363 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0271 ,  G09G2320/028 ,  G09G2320/0666 ,  G09G2340/06

摘要： A liquid crystal display device (100A) of the present invention includes an active matrix substrate (220); a counter substrate (240); and a vertical alignment type liquid crystal layer (260). The liquid crystal display device (100) has a plurality of pixels, each of the pixels including a plurality of subpixels. The plurality of subpixels include a red subpixel (R), a green subpixel (G), and a blue subpixel (B). When each of adjacent two of the plurality of pixels represents an achromatic color at a certain grayscale level, a luminance of a blue subpixel (B) included in one of the two adjacent pixels is different from a luminance of a blue subpixel (B) included in the other of the two adjacent pixels.

摘要翻译： 本发明的液晶显示装置（100A）具有有源矩阵基板（220）。 相对基板（240）; 和垂直取向型液晶层（260）。 液晶显示装置（100）具有多个像素，每个像素包括多个子像素。 多个子像素包括红色子像素（R），绿色子像素（G）和蓝色子像素（B）。 当多个像素中的相邻两个像素中的每一个表示一定灰度级的无彩色时，包含在两个相邻像素之一中的蓝色子像素（B）的亮度与包括的蓝色子像素（B）的亮度不同 在两个相邻像素中的另一个。

公开(公告)号：US20130010213A1

公开(公告)日：2013-01-10

申请号：US13611600

申请日：2012-09-12

申请人： Kazunari Tomizawa ,  Tomohiko Mori ,  Shun Ueki ,  Takao Muroi

发明人： Kazunari Tomizawa ,  Tomohiko Mori ,  Shun Ueki ,  Takao Muroi

IPC分类号： H04N9/30

CPC分类号： G09G3/3607 ,  G02F1/133514 ,  G02F2201/52 ,  G09G2300/0447 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2340/06

摘要： A signal conversion circuit is disclosed which is suitably used in a multiprimary liquid crystal display device, and a multiprimary liquid crystal display device having such a signal conversion circuit. A signal conversion circuit according to one embodiment of the present invention is for use in a multiprimary liquid crystal display device, and converts an input video signal to a multiprimary signal corresponding to four or more primary colors. When generating a multiprimary signal for displaying dark skin, the signal conversion circuit according to an embodiment of the present invention applies a conversion to the video signal so that a color difference Δu′v′=((u′−u60′)2+(v′−v60′)2) is 0.03 or less, the color difference Δu′v′ being defined by CIE1976 chromaticity coordinates (u′, v′) representing a chromaticity when the pixel is viewed from the frontal direction and CIE1976 chromaticity coordinates (u60′, v60′) representing a chromaticity when the pixel is viewed from a 60° oblique direction.

摘要翻译： 公开了适用于多原色液晶显示装置的信号转换电路和具有这种信号转换电路的多原色液晶显示装置。 根据本发明的一个实施例的信号转换电路用于多原色液晶显示装置，并将输入视频信号转换成对应于四个或更多原色的多原色信号。 当产生用于显示暗皮肤的多原色信号时，根据本发明的实施例的信号转换电路将转换应用于视频信号，使得色差Dgr u'v'=（（u'-u60'）2 +（v'-v60'）2）为0.03以下，由CIE1976色度坐标（u'，v'）定义的色差＆Dgr; u'v'表示从正面观察像素时的色度， 表示当从60°倾斜方向观看像素时的色度的CIE1976色度坐标（u60'，v60'）。

公开(公告)号：US20120206326A1

公开(公告)日：2012-08-16

申请号：US13503421

申请日：2010-10-26

申请人： Kohzoh Nakamura ,  Shun Ueki ,  Kazunari Tomizawa ,  Tomohiko Mori ,  Yuichi Yoshida

发明人： Kohzoh Nakamura ,  Shun Ueki ,  Kazunari Tomizawa ,  Tomohiko Mori ,  Yuichi Yoshida

IPC分类号： G09G3/36

CPC分类号： G02B5/201

摘要： A liquid crystal display device according to the present invention comprises a pixel including a plurality of sub pixels. The plurality of sub pixels include a red sub pixel (R), a green sub pixel (G), a blue sub pixel (B), a yellow sub pixel (Ye) and a cyan sub pixel (C). The aperture area size of one of the cyan sub pixel (C) and the blue sub pixel (B) is larger than the aperture area size of any of the other of the cyan (C) and blue (B) sub pixels, the green sub pixel (G) and the yellow sub pixel (Ye); and the aperture area size of the red sub pixel (R) is larger than the aperture area size of any of the other of the cyan (C) and blue (B) sub pixels, the green sub pixel (G), and the yellow sub pixel (Ye).

摘要翻译： 根据本发明的液晶显示装置包括具有多个子像素的像素。 多个子像素包括红色子像素（R），绿色子像素（G），蓝色子像素（B），黄色子像素（Ye）和青色子像素（C）。 青色子像素（C）和蓝色子像素（B）中的一个的开口面积尺寸大于青色（C）和蓝色（B）子像素中的任一个的开口面积尺寸，绿色 子像素（G）和黄色子像素（Ye）; 并且红色子像素（R）的开口面积尺寸大于青色（C）和蓝色（B）子像素，绿色子像素（G）和黄色子像素（G）中的任一个的开口面积尺寸 子像素（Ye）。

公开(公告)号：US08233007B2

公开(公告)日：2012-07-31

申请号：US12375741

申请日：2007-07-30

申请人： Kazunari Tomizawa ,  Shun Ueki

发明人： Kazunari Tomizawa ,  Shun Ueki

IPC分类号： G09G5/02

CPC分类号： G09G5/02 ,  H04N9/67

摘要： A display device using a number n of primary colors (where n is a natural number that is equal to or greater than four) includes a video signal converting section that receives an m-primary-color signal representing a number m of primary colors (where is m is also a natural number that is smaller than n) and that converts the m-primary-color signal into an n-primary -color signal representing the n primary colors. The n primary colors include a color that is complementary to a particular one of the m primary colors. The video signal converting section generates the n-primary-color signal such that if a color component representing the particular primary color of the m-primary-color signal has a negative level, the complementary primary color has an increased luminance and the other non-complementary primary colors have decreased luminances compared to a situation where the color component representing the particular primary color is zero.

摘要翻译： 使用n个原色（其中n是等于或大于4的自然数）的显示装置包括视频信号转换部，其接收表示原色数量m的m原色信号（其中 m也是小于n的自然数，并且将m原色信号转换为表示n原色的n原色信号。 n原色包括与m个原色中的特定的一个颜色互补的颜色。 视频信号转换部分产生n原色信号，使得如果表示m原色信号的特定原色的色彩分量具有负电平，则互补原色具有增加的亮度， 与表示特定原色的颜色分量为零的情况相比，互补原色具有降低的亮度。

公开(公告)号：US08654116B2

公开(公告)日：2014-02-18

申请号：US13611600

申请日：2012-09-12

申请人： Kazunari Tomizawa ,  Tomohiko Mori ,  Shun Ueki ,  Takao Muroi

发明人： Kazunari Tomizawa ,  Tomohiko Mori ,  Shun Ueki ,  Takao Muroi

IPC分类号： G06F3/038 ,  G09G5/00 ,  H04N9/30

CPC分类号： G09G3/3607 ,  G02F1/133514 ,  G02F2201/52 ,  G09G2300/0447 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2340/06

摘要： A signal conversion circuit is disclosed which is suitably used in a multiprimary liquid crystal display device, and a multiprimary liquid crystal display device having such a signal conversion circuit. A signal conversion circuit according to one embodiment of the present invention is for use in a multiprimary liquid crystal display device, and converts an input video signal to a multiprimary signal corresponding to four or more primary colors. When generating a multiprimary signal for displaying dark skin, the signal conversion circuit according to an embodiment of the present invention applies a conversion to the video signal so that a color difference Δu′v′=((u′−u60′)2+(v′−v60′)2) is 0.03 or less, the color difference Δu′v′ being defined by CIE1976 chromaticity coordinates (u′, v′) representing a chromaticity when the pixel is viewed from the frontal direction and CIE1976 chromaticity coordinates (u60′, v60′) representing a chromaticity when the pixel is viewed from a 60° oblique direction.

摘要翻译： 公开了适用于多原色液晶显示装置的信号转换电路和具有这种信号转换电路的多原色液晶显示装置。 根据本发明的一个实施例的信号转换电路用于多原色液晶显示装置，并将输入视频信号转换成对应于四个或更多原色的多原色信号。 当产生用于显示暗皮肤的多原色信号时，根据本发明的实施例的信号转换电路将转换应用于视频信号，使得色差Deltau'v'=（（u'-u60'）2+（ v'-v60'）2）为0.03以下时，色差Deltau'v'由CIE1976色度坐标（u'，v'）定义，表示当从正面方向观察像素时的色度和CIE1976色度坐标（ u60'，v60'），表示当从60°倾斜方向观察像素时的色度。

公开(公告)号：US20110216109A1

公开(公告)日：2011-09-08

申请号：US13128884

申请日：2009-11-05

申请人： Shun Ueki ,  Kozo Nakamura ,  Tomohiko Mori ,  Kazunari Tomizawa ,  Yuichi Yoshida

发明人： Shun Ueki ,  Kozo Nakamura ,  Tomohiko Mori ,  Kazunari Tomizawa ,  Yuichi Yoshida

IPC分类号： G09G5/10

CPC分类号： H04N9/64 ,  G02F1/133514 ,  G02F2201/52 ,  G09G3/3607 ,  G09G5/06 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2340/06

摘要： A multiple primary color display device which suppresses the reduction in the display quality when an input signal corresponding to green in an sRGB color space is input from outside is provided. A display device according to the present invention has a pixel defined by a plurality of sub pixels. The plurality of sub pixels include at least a red sub pixel for displaying red, a green sub pixel for displaying green, a blue sub pixel for displaying blue, and a yellow sub pixel for displaying yellow. When an input signal corresponding to green in the sRGB color space is input from outside, the display device according to the present invention provides display using the yellow sub pixel in addition to the green sub pixel.

摘要翻译： 提供了从外部输入与sRGB颜色空间中的绿色对应的输入信号时抑制显示质量降低的多原色显示装置。 根据本发明的显示装置具有由多个子像素限定的像素。 多个子像素至少包括用于显示红色的红色子像素，用于显示绿色的绿色子像素，用于显示蓝色的蓝色子像素和用于显示黄色的黄色子像素。 当从外部输入对应于sRGB色彩空间中的绿色的输入信号时，根据本发明的显示装置除了绿色子像素之外还提供使用黄色子像素的显示。