公开(公告)号：US09013517B2

公开(公告)日：2015-04-21

申请号：US13415351

申请日：2012-03-08

申请人： Goki Toshima ,  Yoshihisa Ooishi ,  Ryutaro Oke ,  Junichi Maruyama

发明人： Goki Toshima ,  Yoshihisa Ooishi ,  Ryutaro Oke ,  Junichi Maruyama

IPC分类号： G09G5/10 ,  G09G3/36 ,  G09G3/20

CPC分类号： G09G3/3688 ,  G09G3/2025 ,  G09G3/3648 ,  G09G2320/0223 ,  G09G2320/0276 ,  G09G2340/0435

摘要： Provided is a liquid crystal display device, including: a data line; a plurality of pixel circuits; an output grayscale value generating circuit for outputting an output grayscale value obtained by correcting a display grayscale value indicating a grayscale potential having one of positive polarity and negative polarity; and a data-line driving circuit for selectively outputting an output potential having one of positive polarity and negative polarity corresponding to the output grayscale value to the data line. The data-line driving circuit outputs the potential so that the positive-polarity output potential corresponding to a smallest output grayscale value becomes lower than a positive-polarity grayscale potential indicated by a smallest one of the display grayscale values and that the negative-polarity output potential corresponding to the smallest output grayscale value becomes higher than a negative-polarity grayscale potential indicated by the smallest one of the display grayscale values.

摘要翻译： 提供一种液晶显示装置，包括：数据线; 多个像素电路; 输出灰度值产生电路，用于输出通过校正指示具有正极性和负极性之一的灰度级电位的显示灰度值而获得的输出灰度值; 以及数据线驱动电路，用于选择性地将对应于输出灰度值的正极性和负极性之一的输出电位输出到数据线。 数据线驱动电路输出电位，使得对应于最小输出灰度值的正极性输出电位变得低于由显示灰度值中最小的一个表示的正极性灰度级电位，而负极性输出 对应于最小输出灰度值的电位变得高于由最小的显示灰度值指示的负极性灰度级电位。

公开(公告)号：US08743040B2

公开(公告)日：2014-06-03

申请号：US13050983

申请日：2011-03-18

申请人： Yoshihisa Ooishi ,  Masato Ishii ,  Junichi Maruyama ,  Goki Toshima

发明人： Yoshihisa Ooishi ,  Masato Ishii ,  Junichi Maruyama ,  Goki Toshima

IPC分类号： G09G3/36

CPC分类号： G09G3/3659 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2310/0251 ,  G09G2320/0276

摘要： A liquid crystal display device which includes one image signal line which is connected to a plurality of pixels, a scanning line drive part which outputs an ON voltage to the respective pixels in a predetermined order, and a data line drive part which outputs image signal voltages. The data line drive part outputs a gray level signal voltage corresponding to a gray level value of the pixel as an image signal voltage in a first period, and outputs a correction gray level signal voltage different from the gray level signal voltage as an image signal voltage in a second period which precedes the first period. The liquid crystal display device further includes a control part which generates the correction gray level signal voltage based on the gray level value of the pixel and one or plurarity of gray level values of pixels which precede the pixel in order.

摘要翻译： 一种液晶显示装置，包括连接到多个像素的一个图像信号线，以预定顺序向各个像素输出导通电压的扫描线驱动部分和输出图像信号电压的数据线驱动部分 。 数据线驱动部在第一时间段中输出与像素的灰度值对应的灰度级信号电压作为图像信号电压，并输出与灰度级信号电压不同的校正灰度级信号电压作为图像信号电压 在第一个时期之前的第二个时期。 液晶显示装置还包括控制部，其基于像素的灰度级产生校正灰度级信号电压，并且依次按像素之前的像素的灰度级的一个或多个进行多次生成。

公开(公告)号：US20110109666A1

公开(公告)日：2011-05-12

申请号：US12942151

申请日：2010-11-09

申请人： Misa Owa ,  Junichi Maruyama ,  Goki Toshima ,  Yoshihisa Ooishi

发明人： Misa Owa ,  Junichi Maruyama ,  Goki Toshima ,  Yoshihisa Ooishi

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： G09G3/3648 ,  G09G3/3685 ,  G09G2320/0252 ,  G09G2320/041 ,  G09G2340/16

摘要： A liquid crystal display device includes data lines, a plurality of pixel circuits, and a control circuit which obtains data line potentials which are formed by correcting potentials which allow the respective pixel circuits to display tones. The control circuit obtains the data line potentials such that a correction amount from a first potential to the data line potential when a tone potential in a frame which is displayed is the first potential and a tone potential in a frame right before the frame is a second potential, and a correction amount from the second potential to the data line potential when the tone potential of the frame which is displayed is the second potential and the tone potential of the frame right before the frame is the first potential differ from each other.

摘要翻译： 液晶显示装置包括数据线，多个像素电路和控制电路，其获得通过校正允许各个像素电路显示色调的电位而形成的数据线电位。 控制电路获得数据线电位，使得当所显示的帧中的音调电位为第一电位时，从第一电位到数据线电位的校正量，并且帧正前方的音调电位为第二电平 电位以及当显示的帧的音调电位为第二电位且正好在帧之前的帧的音调电位彼此不同时，从第二电位到数据线电位的校正量。

公开(公告)号：US08847865B2

公开(公告)日：2014-09-30

申请号：US13050979

申请日：2011-03-18

申请人： Yoshihisa Ooishi ,  Misa Owa ,  Junichi Maruyama ,  Goki Toshima

发明人： Yoshihisa Ooishi ,  Misa Owa ,  Junichi Maruyama ,  Goki Toshima

IPC分类号： G09G3/36

CPC分类号： G09G3/3685 ,  G09G3/3648 ,  G09G2310/0205 ,  G09G2310/0251 ,  G09G2310/0275 ,  G09G2320/0285 ,  G09G2320/041

摘要： A data line driving section (6) outputs a video signal voltage for each pixel to a data line (DL) for each predetermined period in order. In outputting a video signal voltage for a pixel, the data line driving section (6) outputs a gradation signal voltage having a voltage corresponding to a gradation value of the pixel as the video signal voltage during a second part of the predetermined period, and outputs a correction gradation signal voltage different from the gradation signal voltage as the video signal voltage during a first part of the predetermined period. A control section (4) changes a relationship between the correction gradation signal voltage and the gradation signal voltage based on a combination of the gradation value of the pixel and a gradation value of a pixel preceding the pixel.

摘要翻译： 数据线驱动部分（6）按照每个预定周期将每个像素的视频信号电压输出到数据线（DL）。 在输出像素的视频信号电压时，数据线驱动部（6）在预定期间的第二部分输出具有与像素的灰度值对应的电压作为视频信号电压的灰度信号电压，并输出 与预定周期的第一部分期间的视频信号电压不同于灰度信号电压的校正灰度信号电压。 控制部分（4）基于像素的灰度值和像素之前的像素的灰度值的组合来改变校正灰度信号电压和灰度信号电压之间的关系。

公开(公告)号：US08648785B2

公开(公告)日：2014-02-11

申请号：US13050981

申请日：2011-03-18

申请人： Yoshihisa Ooishi ,  Goki Toshima ,  Junichi Maruyama ,  Misa Owa

发明人： Yoshihisa Ooishi ,  Goki Toshima ,  Junichi Maruyama ,  Misa Owa

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G2320/0252 ,  G09G2340/16

摘要： Provided is a display device including: a control portion; a display panel including one or more pixel circuits and an image signal line connected to the pixel circuits; and an image signal line driving circuit. The control portion includes a difference acquiring circuit for acquiring difference data between a value of a gray-level potential, which is to be applied to one of the pixel circuits from the image signal line, and a value of a precharge potential based on the gray-level potential. The image signal line driving circuit calculates the precharge potential based on the value of the gray-level potential and the difference data, and supplies the image signal line with the precharge potential and the gray-level potential in sequence.

摘要翻译： 提供一种显示装置，包括：控制部; 包括一个或多个像素电路和连接到像素电路的图像信号线的显示面板; 和图像信号线驱动电路。 控制部分包括差分获取电路，用于从图像信号线获取要应用于像素电路中的一个的灰度电位的值与基于灰度的预充电电位的值之间的差分数据 水平的潜力。 图像信号线驱动电路基于灰度电位和差分数据的值来计算预充电电位，并且依次提供具有预充电电位和灰度电位的图像信号线。

公开(公告)号：US09251749B2

公开(公告)日：2016-02-02

申请号：US13371003

申请日：2012-02-10

申请人： Junichi Maruyama ,  Ryutaro Oke ,  Yoshihisa Ooishi

发明人： Junichi Maruyama ,  Ryutaro Oke ,  Yoshihisa Ooishi

IPC分类号： G09G3/34 ,  G09G3/36

CPC分类号： G09G3/3648 ,  G09G3/3688 ,  G09G2310/0248 ,  G09G2310/0281 ,  G09G2320/0204 ,  G09G2320/0219 ,  G09G2320/0223 ,  G09G2320/0257 ,  G09G2320/0285

摘要： In the case where the gray-scale value of the pixel X is the minimum gray-scale value, the data line driving circuit (4) outputs a video signal having a voltage obtained by correcting the positive polarity minimum gray-scale voltage corresponding to the minimum gray-scale value only when outputting a positive polarity video signal. In the above, the data line driving circuit (4) outputs the video signal having the voltage obtained by correcting the positive polarity minimum gray-scale voltage, using a voltage correction amount larger than that which is used in outputting the video signal having the voltage obtained by correcting the positive polarity gray-scale voltage corresponding to the intermediate gray-scale value.

摘要翻译： 在像素X的灰度值为最小灰度值的情况下，数据线驱动电路（4）输出具有通过对与该像素X相对应的正极性最小灰度电压进行校正而获得的电压的视频信号 仅当输出正极性视频信号时才具有最小灰度值。 在上文中，数据线驱动电路（4）使用比用于输出具有电压的视频信号所用的电压校正量大的电压校正量，输出具有通过校正正极性最小灰度电压而获得的电压的视频信号 通过校正与中间灰度值对应的正极性灰度电压而获得。

公开(公告)号：US20080303758A1

公开(公告)日：2008-12-11

申请号：US12131202

申请日：2008-06-02

申请人： Yoshihisa Ooishi ,  Junichi Maruyama ,  Takashi Shoji ,  Kikuo Ono

发明人： Yoshihisa Ooishi ,  Junichi Maruyama ,  Takashi Shoji ,  Kikuo Ono

IPC分类号： G09G3/34

CPC分类号： G09G3/2033 ,  G09G3/2037 ,  G09G3/36 ,  G09G3/3611 ,  G09G5/399 ,  G09G2340/02 ,  G09G2360/18

摘要： High-order bits to be utilized for current-frame display data and previous-frame display data, and low-order bits to be utilized for the current-frame display data alone are stored in independently controllable memory areas. For reading the current-frame display data from a frame memory, data of the high-order bits and data of the low-order bits are read. For reading the previous-frame data, the high-order bits alone are read. Thus, since a period during which the data of the low-order bits that is not utilized for the previous-frame display data is stored in the memory is shortened, a required memory capacity can be reduced. The data transfer time can be reduced by the time required for memory read for the data of the low-order bits that is not utilized for the previous-frame display data.

摘要翻译： 用于当前帧显示数据和前一帧显示数据的高位数，以及仅用于当前帧显示数据的低位比特存储在独立可控存储区域中。 为了从帧存储器读取当前帧显示数据，读取高位数据和低位数据的数据。 为了读取前一帧数据，只读取高位。 因此，由于缩短了对前一帧显示数据未被利用的低位数据的数据存储在存储器中的时段，所以可以减少所需的存储器容量。 数据传输时间可以减少对于未用于前一帧显示数据的低位的数据的存储器读取所需的时间。

公开(公告)号：US20080030514A1

公开(公告)日：2008-02-07

申请号：US11622023

申请日：2007-01-11

申请人： Yoshihisa Ooishi ,  Junichi Maruyama ,  Kikuo Ono

发明人： Yoshihisa Ooishi ,  Junichi Maruyama ,  Kikuo Ono

IPC分类号： G06T1/60 ,  G09G3/36 ,  G09G5/10

CPC分类号： G06T1/60 ,  G09G3/2025 ,  G09G3/3648 ,  G09G2310/0251 ,  G09G2320/0247 ,  G09G2320/0261 ,  G09G2320/0276 ,  G09G2340/0435

摘要： There is disclosed a display device which is driven by a two-field drive scheme. That is, brightness corresponding to one frame of image is obtained in two scans. The display screen is divided into plural regions. One of the regions is driven by a black insertion method. The other region is driven by a pseudo-normal drive method. In this method, an image based on the same display data is displayed twice. The display data is converted such that the gamma characteristics of the pseudo-normally driven region are substantially equal to the gamma characteristics of the region driven by the black insertion method. If necessary, each individual pixel in the boundary region between the region driven by the black insertion method and the region driven by the pseudo-normal drive method is displayed black or white. The boundary region has a width of at least two pixels.

摘要翻译： 公开了一种由双场驱动方式驱动的显示装置。 也就是说，在两次扫描中获得与一帧图像相对应的亮度。 显示屏分为多个区域。 其中一个区域由黑色插入法驱动。 其他区域由伪正常驱动方式驱动。 在该方法中，基于相同显示数据的图像被显示两次。 显示数据被转换成使得伪正常驱动区域的伽马特性基本上等于由黑色插入方法驱动的区域的伽马特性。 如果需要，由黑色插入方法驱动的区域和由伪正常驱动方法驱动的区域之间的边界区域中的每个像素被显示为黑色或白色。 边界区域具有至少两个像素的宽度。

公开(公告)号：US07847771B2

公开(公告)日：2010-12-07

申请号：US11279598

申请日：2006-04-13

申请人： Junichi Maruyama ,  Hiroyuki Nitta ,  Yoshihisa Ooishi ,  Kikuo Ono

发明人： Junichi Maruyama ,  Hiroyuki Nitta ,  Yoshihisa Ooishi ,  Kikuo Ono

IPC分类号： G09G3/36

CPC分类号： G09G3/2022 ,  G09G3/3688 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2320/0276 ,  G09G2340/16

摘要： A speed doubling circuit receiving display data in one frame period and outputting field A display data and field B display data in one frame period. A field conversion circuit converts the field A display data to have a highest gray-scale if the display data has a high gray-scale, and converts the field B display data to have a lowest gray-scale if the display data has a low gray-scale. Between the speed doubling circuit and field conversion circuit, an emphasis circuit is disposed which emphasizes each of the field A display data and field B display data in accordance with the display data one frame period before and the display data in the present frame period.

摘要翻译： 在一个帧周期中接收显示数据并在一个帧周期中输出字段A显示数据和字段B显示数据的加倍电路。 如果显示数据具有高灰阶，则场转换电路将场A显示数据转换为具有最高灰度，并且如果显示数据具有低灰度，则将场B显示数据转换为具有最低灰度 -规模。 在倍速电路和场转换电路之间，设置强调电路，其根据前一帧周期的显示数据和当前帧周期中的显示数据强调场A显示数据和场B显示数据中的每一个。

公开(公告)号：US20090085856A1

公开(公告)日：2009-04-02

申请号：US12139598

申请日：2008-06-16

申请人： Yuuki OKADA ,  Kikuo Ono ,  Yoshihisa Ooishi ,  Junichi Maruyama

发明人： Yuuki OKADA ,  Kikuo Ono ,  Yoshihisa Ooishi ,  Junichi Maruyama

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2340/16

摘要： An overdrive device corrects IN data by referring to a look-up table based on IN data, ODA data outputted from the look-up table, which is previous by one frame and ODB data outputted from the look-up table, which is previous by two frames.

摘要翻译： 过驱动装置通过参照查询表来查询IN数据，该查找表基于IN数据，从查找表输出的ODA数据，其前面是一帧，并且从查找表输出的ODB数据， 两帧。