公开(公告)号：US20110254759A1

公开(公告)日：2011-10-20

申请号：US13142041

申请日：2009-12-25

申请人： Tomohiko Mori ,  Kazunari Tomizawa ,  Yuichi Yoshida

发明人： Tomohiko Mori ,  Kazunari Tomizawa ,  Yuichi Yoshida

IPC分类号： G09G3/36

CPC分类号： G09G3/3614 ,  G09G3/3607 ,  G09G3/3648 ,  G09G5/02 ,  G09G2300/0426 ,  G09G2300/0447 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2320/068 ,  G09G2340/06

摘要： A liquid crystal display device (100) according to the present invention includes pixels (P1) and (P2), each of which includes three subpixels (R1, G1, B1) and (R2, G2, B2). When the input signal indicates that a chromatic color should be represented, one of the subpixels (B1 and B2) is turned ON and at least one of the subpixels (R1, R2, G1 and G2) is turned ON, too. If the average luminance of the subpixels (B1 and B2) in a situation where the input signal indicates that the chromatic color should be represented is substantially equal to that of the subpixels (B1 and B2) in another situation where the input signal indicates that an achromatic color should be represented, the luminances of those subpixels (B1 and B2) in the former situation are different from those of the subpixels (B1 and B2) in the latter situation.

摘要翻译： 根据本发明的液晶显示装置（100）包括像素（P1）和（P2），每个像素包括三个子像素（R1，G1，B1）和（R2，G2，B2）。 当输入信号指示应该表示彩色时，子像素（B1和B2）中的一个被导通，并且子像素（R1，R2，G1和G2）中的至少一个也被接通。 在输入信号表示应该表示彩色的情况下的子像素（B1，B2）的平均亮度基本上等于子像素（B1和B2）的平均亮度， 应该表示无色的颜色，在后一种情况下，这些子像素（B1和B2）的亮度与子像素（B1和B2）的亮度不同。

公开(公告)号：US08947476B2

公开(公告)日：2015-02-03

申请号：US13520243

申请日：2011-01-06

申请人： Yuichi Yoshida ,  Kazunari Tomizawa ,  Tomohiko Mori

发明人： Yuichi Yoshida ,  Kazunari Tomizawa ,  Tomohiko Mori

IPC分类号： G09G5/02 ,  G09G5/00 ,  G09G3/36 ,  G09G3/20

CPC分类号： G09G3/3648 ,  G02F2201/52 ,  G09G3/2074 ,  G09G5/026 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2340/06

摘要： A liquid crystal display device includes a liquid crystal display panel and a driving circuit that supplies display signals to a plurality of subpixels of the liquid crystal display panel. The plurality of subpixels are a red subpixel, a green subpixel, a blue subpixel, and a yellow subpixel. When achromatic colors of at least some gray levels among all gray levels are to be displayed by the pixel, display signals which are supplied to a first subpixel group composed of certain two subpixels are display signals of the same grayscale level, whereas display signals which are supplied to a second subpixel group composed of the other two subpixels are display signals of a different grayscale level from the grayscale level of the display signals supplied to the first subpixel group. The first subpixel group includes the yellow subpixel, and the second subpixel group includes the blue subpixel.

摘要翻译： 液晶显示装置包括液晶显示面板和向液晶显示面板的多个子像素提供显示信号的驱动电路。 多个子像素是红色子像素，绿色子像素，蓝色子像素和黄色子像素。 当由像素显示所有灰度级中的至少一些灰度级的无彩色时，提供给由特定两个子像素构成的第一子像素组的显示信号是相同灰度级的显示信号，而显示信号 提供给由其他两个子像素构成的第二子像素组是从提供给第一子像素组的显示信号的灰度级别的不同灰度级的显示信号。 第一子像素组包括黄色子像素，第二子像素组包括蓝色子像素。

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。

公开(公告)号：US20110210911A1

公开(公告)日：2011-09-01

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

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：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：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：US09165494B2

公开(公告)日：2015-10-20

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： G09G3/36 ,  G09G3/20 ,  H04N9/67

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：US20120313981A1

公开(公告)日：2012-12-13

申请号：US13578633

申请日：2011-02-08

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

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

IPC分类号： G09G5/10

CPC分类号： G09G3/3607 ,  G09G3/2003 ,  G09G2300/0452 ,  G09G2340/06

摘要： A display device (100) according to the present invention includes a pixel defined by a plurality of sub pixels. The plurality of sub pixels are a red sub pixel (R) to display red, a green sub pixel (G) to display green, a blue sub pixel (B) to display blue, and a yellow sub pixel (Ye) to display yellow. When an input signal corresponding to green of the sRGB color space is externally input, the display device (100) according to the present invention provides display by use of the green sub pixel (G) and also the yellow sub pixel (Ye). According to the present invention, a multiple primary color display device which suppresses decline of the display quality when an input signal corresponding to green of the sRGB color space is externally input is provided.

摘要翻译： 根据本发明的显示装置（100）包括由多个子像素限定的像素。 多个子像素是显示红色的红色子像素（R），显示绿色的绿色子像素（G），显示蓝色的蓝色子像素（B）和显示黄色的黄色子像素（Ye） 。 当外部输入对应于sRGB色彩空间的绿色的输入信号时，根据本发明的显示装置（100）通过使用绿色子像素（G）和黄色子像素（Ye）提供显示。 根据本发明，提供了当外部输入与sRGB色彩空间的绿色对应的输入信号时抑制显示质量下降的多原色显示装置。

公开(公告)号：US20120281033A1

公开(公告)日：2012-11-08

申请号：US13520243

申请日：2011-01-06

申请人： Yuichi Yoshida ,  Kazunari Tomizawa ,  Tomohiko Mori

发明人： Yuichi Yoshida ,  Kazunari Tomizawa ,  Tomohiko Mori

IPC分类号： G09G3/36 ,  G09G5/02

CPC分类号： G09G3/3648 ,  G02F2201/52 ,  G09G3/2074 ,  G09G5/026 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2340/06

摘要： A liquid crystal display device (100) according to the present invention includes a liquid crystal display panel (10) and a driving circuit (20) that supplies display signals to a plurality of subpixels of the liquid crystal display panel (10). The plurality of subpixels are a red subpixel (R), a green subpixel (G), a blue subpixel (B), and a yellow subpixel (Ye). When achromatic colors of at least some gray levels among all gray levels are to be displayed by the pixel, display signals which are supplied to a first subpixel group composed of certain two subpixels are display signals of the same grayscale level, whereas display signals which are supplied to a second subpixel group composed of the other two subpixels are display signals of a different grayscale level from the grayscale level of the display signals supplied to the first subpixel group. The first subpixel group includes the yellow subpixel (Ye), and the second subpixel group includes the blue subpixel (B). According to the present invention, a white point adjustment technique which is suitably used for a multiprimary liquid crystal display device that performs multicolor display by using four primary colors is provided.

摘要翻译： 根据本发明的液晶显示装置（100）包括向液晶显示面板（10）的多个子像素提供显示信号的液晶显示面板（10）和驱动电路（20）。 多个子像素是红色子像素（R），绿色子像素（G），蓝色子像素（B）和黄色子像素（Ye）。 当由像素显示所有灰度级中的至少一些灰度级的无彩色时，提供给由特定两个子像素构成的第一子像素组的显示信号是相同灰度级的显示信号，而显示信号 提供给由其他两个子像素构成的第二子像素组是从提供给第一子像素组的显示信号的灰度级别的不同灰度级的显示信号。 第一子像素组包括黄色子像素（Ye），第二子像素组包括蓝色子像素（B）。 根据本发明，提供了适用于通过使用四原色执行多色显示的多原色液晶显示装置的白点调整技术。

公开(公告)号：US20110080520A1

公开(公告)日：2011-04-07

申请号：US12993906

申请日：2009-05-21

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

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

IPC分类号： H04N9/30 ,  H04N7/01

CPC分类号： G09G5/02 ,  G02F1/133707 ,  G02F2001/134372 ,  G02F2201/52 ,  G09G3/006 ,  G09G3/2003 ,  G09G3/3607 ,  G09G3/3611 ,  G09G2300/0426 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2300/0486 ,  G09G2320/0242 ,  G09G2320/028 ,  G09G2340/06

摘要： There is provided a signal conversion circuit which is suitably used in a multiprimary liquid crystal display device (especially a multiprimary liquid crystal display device which performs display in a vertical alignment mode), and a multiprimary liquid crystal display device having such a signal conversion circuit.A signal conversion circuit according to the present invention is for use in a multiprimary liquid crystal display device which performs display in a vertical alignment mode, 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 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： 提供了适用于多原色液晶显示装置（特别是以垂直取向模式进行显示的多原色液晶显示装置）的信号转换电路以及具有这种信号转换电路的多原色液晶显示装置。 根据本发明的信号转换电路用于以垂直对准模式执行显示的多原色液晶显示装置，并将输入视频信号转换为与四种或更多原色对应的多原色信号。 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，CIE1976色度坐标 （u60'，v60'）表示当从60°倾斜方向观看像素时的色度。