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：US20110254879A1

公开(公告)日：2011-10-20

申请号：US13142042

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 ,  G09G5/02

CPC分类号： G09G3/3607 ,  G02F2201/52 ,  G09G3/3648 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0271 ,  G09G2320/0285 ,  G09G2320/068 ,  G09G2340/0457 ,  G09G2340/06

摘要： A liquid crystal device (100A) according to the present invention has first and second pixels (P1 and P2). Each of the first and second pixels (P1 and P2) includes first, second and third subpixels (R, G, and B). When the input signal indicates that each pixel should represent the first color, the luminances of the respective third subpixels (B1 and B2) of the first and second pixels (P1 and P2) are different from each other. But when the input signal indicates that each pixel should represent the second color, the average luminance of the respective third subpixels (B1 and B2) is substantially the same as when the first color is specified, and the luminances of the respective third subpixels (B1 and B2) are substantially equal to each other.

摘要翻译： 根据本发明的液晶装置（100A）具有第一和第二像素（P1和P2）。 第一和第二像素（P1和P2）中的每一个包括第一，第二和第三子像素（R，G和B）。 当输入信号指示每个像素应表示第一颜色时，第一和第二像素（P1和P2）的各个第三子像素（B1和B2）的亮度彼此不同。 但是，当输入信号表示每个像素应表示第二颜色时，各个第三子像素（B1和B2）的平均亮度与指定第一颜色时的平均亮度基本相同，并且各个第三子像素（B1 和B2）基本上彼此相等。

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：US20140253422A1

公开(公告)日：2014-09-11

申请号：US14241766

申请日：2012-08-28

申请人： Kazunari Tomizawa ,  Yuichi Yoshida ,  Tomohiko Mori ,  Makoto Hasegawa

发明人： Kazunari Tomizawa ,  Yuichi Yoshida ,  Tomohiko Mori ,  Makoto Hasegawa

IPC分类号： G09G3/36

CPC分类号： G09G3/3607 ,  G02F1/133514 ,  G09G2320/0242 ,  G09G2320/028 ,  G09G2340/06 ,  G09G2360/16

摘要： This liquid crystal display device (100) includes a pixel defined by a plurality of subpixels that includes red, green, blue and yellow subpixels (R, G, B, Ye). As long as the sum of respective luminances of all of the subpixels but the blue subpixel (B) falls within the range of 0% to 50% while the color displayed by the pixel is changing from the color blue in which the blue subpixel (B) is at the highest grayscale level and the other subpixels are at the lowest grayscale level into the color white in which all of those subpixels are at the highest grayscale level substantially without changing its hue, the yellow subpixel (Ye) starts to increase its grayscale level at a different timing, and/or has its grayscale level increased at a different ratio with respect to an increase in the pixel's luminance, from the red and green subpixels (R, G) do.

摘要翻译： 该液晶显示装置（100）包括由包括红色，绿色，蓝色和黄色子像素（R，G，B，Ye）的多个子像素限定的像素。 只要所有子像素而蓝色子像素（B）的各亮度的和落在0％〜50％的范围内，而由像素显示的颜色从蓝色子像素（B ）处于最高灰度级，其他子像素处于最低灰度级，进入白色，其中所有这些子像素基本上处于最高灰度级，而不改变其色调，黄色子像素（Ye）开始增加其灰度 在与红色和绿色子像素（R，G）do相对于像素亮度增加的不同比例增加和/或其灰度等级增加。

公开(公告)号：US20140118423A1

公开(公告)日：2014-05-01

申请号：US14128643

申请日：2012-06-22

申请人： Makoto Hasegawa ,  Kazunari Tomizawa ,  Tomohiko Mori ,  Yuichi Yoshida

发明人： Makoto Hasegawa ,  Kazunari Tomizawa ,  Tomohiko Mori ,  Yuichi Yoshida

IPC分类号： G09G3/20

CPC分类号： G09G3/2074 ,  G09G3/2003 ,  G09G3/3607 ,  G09G2320/0247 ,  G09G2320/0276 ,  G09G2320/028 ,  G09G2360/16

摘要： Viewing angle characteristics on the entire display surface are improved while suppressing harmful effects such as flicker and banding caused by viewing angle improvement control. A liquid crystal display apparatus (1) includes: a liquid crystal panel (11) which includes a plurality of pixels arranged in a matrix; a drive control unit (24) which performs viewing angle improvement processing by converting a gradation of a video signal input to the pixel; and a processing object determination unit (22) which determines whether or not an image displayed on each of the pixels of the liquid crystal panel (11) is an image having an intermediate color. The drive control unit (24) is configured to perform the viewing angle improvement processing on the pixel determined by the processing object determination unit (22) such that the pixel displays the image having the intermediate color.

摘要翻译： 改善了整个显示面上的视角特性，同时抑制由视角改善控制引起的闪烁和带状等有害影响。 液晶显示装置（1）包括：液晶面板（11），包括以矩阵排列的多个像素; 驱动控制单元（24），其通过转换输入到像素的视频信号的灰度来执行视角改善处理; 以及处理对象确定单元（22），其确定在液晶面板（11）的每个像素上显示的图像是否是具有中间颜色的图像。 驱动控制单元（24）被配置为对由处理对象确定单元（22）确定的像素执行视角改善处理，使得像素显示具有中间颜色的图像。

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。