公开(公告)号：US20050128358A1

公开(公告)日：2005-06-16

申请号：US10998163

申请日：2004-11-29

申请人： Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata

发明人： Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata

IPC分类号： H04N5/208 ,  H04N5/57

CPC分类号： H04N5/57 ,  H04N5/208 ,  H04N21/4318 ,  H04N21/44008

摘要： A video signal processing apparatus includes a characteristic detection circuit for detecting luminance distribution corresponding to one frame of a video signal, a contrast compensation circuit for compensating contrast of the video signal, an edge compensation circuit for compensating an edge portion of the video signal, and a control circuit for determining a luminance range to be controlled on the basis of the luminance distribution detected by the characteristic detection circuit, and controlling the contrast compensation circuit and edge compensation circuit to conduct predetermined compensation on the video signal belonging to the luminance range. The control circuit controls the contrast compensation circuit to increase contrast for the video signal in the luminance range as compared with the video signal in other regions, and controls the edge compensation circuit to make an edge compensation quantity for the video signal in the luminance range smaller as compared with other regions.

摘要翻译： 视频信号处理装置包括用于检测对应于视频信号的一帧的亮度分布的特性检测电路，用于补偿视频信号的对比度的对比度补偿电路，补偿视频信号的边缘部分的边缘补偿电路，以及 控制电路，用于基于由特性检测电路检测的亮度分布来确定要被控制的亮度范围，并且控制对比度补偿电路和边缘补偿电路对属于亮度范围的视频信号进行预定的补偿。 控制电路控制对比度补偿电路，以增加与其他区域的视频信号相比在亮度范围内的视频信号的对比度，并且控制边缘补偿电路使亮度范围内的视频信号的边缘补偿量变小 与其他地区相比。

公开(公告)号：US20050057486A1

公开(公告)日：2005-03-17

申请号：US10893989

申请日：2004-07-20

申请人： Hiroshi Aoki ,  Ryo Hasegawa ,  Hirofumi Sakamoto ,  Haruki Takata ,  Yasutaka Tsuru

发明人： Hiroshi Aoki ,  Ryo Hasegawa ,  Hirofumi Sakamoto ,  Haruki Takata ,  Yasutaka Tsuru

IPC分类号： G02F1/133 ,  G09G3/18 ,  G09G3/20 ,  G09G3/34 ,  G09G3/36 ,  G09G5/04 ,  H04N5/66 ,  H04N5/74 ,  H04N9/12

CPC分类号： G09G3/3406 ,  G09G3/2092 ,  G09G5/04 ,  G09G2360/16 ,  H04N9/3155

摘要： An object of the present invention is to provide an image display technology with which high contrast can be stably obtained. In order to achieve the above object, the present invention changes the gain of a digital luminance signal by feeding back information on maximum and average luminance levels of the luminance signal, adjusts image contrast, and in accordance with the average luminance level detected from the feedback system, controls the illuminance of the backlight applied to a display unit. The control increases the illuminance of the backlight when the detected average luminance level is higher than the upper-limit value of a previously set reference range, and reduces the illuminance when the detected average luminance level is lower than the lower-limit value of the reference range.

摘要翻译： 本发明的目的是提供可以稳定地获得高对比度的图像显示技术。 为了实现上述目的，本发明通过反馈关于亮度信号的最大和平均亮度水平的信息，调整图像对比度，并且根据从反馈检测到的平均亮度水平来改变数字亮度信号的增益 系统控制应用于显示单元的背光的照度。 当检测到的平均亮度水平高于预先设定的参考范围的上限值时，控制增加背光的照度，并且当检测到的平均亮度水平低于参考值的下限值时，降低照度 范围。

公开(公告)号：US09047829B2

公开(公告)日：2015-06-02

申请号：US12781239

申请日：2010-05-17

申请人： Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

发明人： Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

IPC分类号： G09G3/34 ,  G02F1/1335

CPC分类号： G09G3/3426 ,  G02F1/1336 ,  G02F2001/133601 ,  G09G2320/0238 ,  G09G2320/0247 ,  G09G2320/0646 ,  G09G2330/021

摘要： An image display apparatus includes a dimming value determination circuit for determining a dimming value of a backlight based on an input image signal, an image signal compensation circuit for compensating the input image signal supplied to a liquid crystal panel in accordance with the dimming value, and a backlight drive circuit for driving and controlling the backlight in accordance with the dimming value. When the light emitting luminance of the present frame of the backlight increases relative to the light emitting luminance of the previous frame, the backlight drive circuit delays the timing for applying the dimming value of the present frame. This makes it possible to reduce power consumption of the backlight by suppressing deterioration in the image quality in spite of the sharp change in the display image luminance.

摘要翻译： 图像显示装置包括：调光值确定电路，用于基于输入图像信号确定背光的调光值;图像信号补偿电路，用于根据调光值补偿提供给液晶面板的输入图像信号;以及 用于根据调光值驱动和控制背光的背光驱动电路。 当背光的当前帧的发光亮度相对于前一帧的发光亮度增加时，背光驱动电路延迟了施加当前帧的调光值的定时。 这使得可以通过抑制显示图像亮度的急剧变化来抑制图像质量的劣化来降低背光的功耗。

公开(公告)号：US08823633B2

公开(公告)日：2014-09-02

申请号：US13079076

申请日：2011-04-04

申请人： Yuya Ogi ,  Yasutaka Tsuru ,  Kazuhiko Tanaka

发明人： Yuya Ogi ,  Yasutaka Tsuru ,  Kazuhiko Tanaka

IPC分类号： G09G3/36 ,  G02F1/1335 ,  G09G3/34

CPC分类号： G09G3/3426 ,  G09G3/3611 ,  G09G2320/0233 ,  G09G2320/062 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2360/16

摘要： In a liquid-crystal display device including an edge-light-scheme-employed backlight device, it is implemented to reduce its power consumption while maintaining its excellent picture-quality. The present invention is applied to the backlight device with a plurality of edge-light-scheme backlight cells in a matrix-like manner including a LED light-source, and a light-guiding plate for emitting light. The intensity of light from a backlight cell positioned at a screen's peripheral portion is so controlled as to be made lower than the intensity of light from a backlight cell at a central portion. The light intensity of a backlight cell having a LED light-source adjacent to a first edge portion of the illumination surface of the backlight device is so controlled as to be made higher than the light intensity of a backlight cell adjacent to a second edge portion opposed to the first edge portion.

摘要翻译： 在包括边缘照明方案的背光装置的液晶显示装置中，实现了降低其功耗，同时保持其优异的图像质量。 本发明以包括LED光源的矩阵状方式和用于发光的导光板应用于具有多个边缘光方案背光单元的背光装置。 来自位于屏幕周边部分的背光单元的光的强度被控制得低于在中心部分来自背光单元的光的强度。 具有与背光装置的照明面的第一边缘部相邻的LED光源的背光单元的光强度被控制为高于与相对的第二边缘部相邻的背光单元的光强度 到第一边缘部分。

公开(公告)号：US08451212B2

公开(公告)日：2013-05-28

申请号：US12963342

申请日：2010-12-08

申请人： Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

发明人： Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

IPC分类号： G09G3/3406

CPC分类号： G09G3/3426 ,  G09G2320/0276 ,  G09G2320/028 ,  G09G2320/0646 ,  G09G2320/0653 ,  G09G2320/068 ,  G09G2330/021 ,  G09G2354/00 ,  G09G2360/16

摘要： An image display device using the area control method for eliminating irregularities as seen from the side and also capable of lowering power consumption. The degree of flatness indicating the image flatness of an image in each image area is calculated, and in areas that are flat the light source luminance is set high in order to lessen irregularities as seen from the side; and in areas that are not flat the irregularities are difficult to perceive as seen from the side so an effect that cuts power consumption is obtained without having to correct the light source luminance.

摘要翻译： 一种图像显示装置，其使用区域控制方法来消除从侧面观察的不规则性并且还能够降低功耗。 计算出每个图像区域中的图像的平坦度的平坦度，并且在平坦的区域中，为了减轻从侧面看的不规则性，将光源亮度设置得较高; 并且在不平坦的区域中，不方便从侧面观察到难以察觉的情况，从而在不必校正光源亮度的情况下获得削减功耗的效果。

公开(公告)号：US08107007B2

公开(公告)日：2012-01-31

申请号：US11646405

申请日：2006-12-28

申请人： Masahiro Ogino ,  Yasutaka Tsuru ,  Yoshiaki Mizuhashi ,  Junichi Satoh

发明人： Masahiro Ogino ,  Yasutaka Tsuru ,  Yoshiaki Mizuhashi ,  Junichi Satoh

IPC分类号： H04N7/01

CPC分类号： H04N7/015

摘要： A technique for flexibly converting the number of frames of a displayed image on the basis of a motion in the image or information of an image signal such as a program genre is provided. An image processing apparatus includes an input unit to which an image signal having a predetermined frame rate is input, an information acquirer for acquiring information concerning the input image signal, and a frame rate converter for converting the frame rate of the input image signal and outputting a resultant signal. The frame rate converter conducts the frame rate conversion of the input image signal on the basis of the information (such as the motion in the image or the program genre) of the input image signal acquired by the information acquirer.

摘要翻译： 提供了一种用于基于图像中的运动或诸如节目类型的图像信号的信息灵活地转换显示图像的帧数的技术。 一种图像处理装置包括输入具有预定帧速率的图像信号的输入单元，用于获取关于输入图像信号的信息的信息获取器，以及用于转换输入图像信号的帧速率并输出 结果信号。 帧速率转换器基于由信息获取器获取的输入图像信号的信息（诸如图像中的运动或节目类型）来执行输入图像信号的帧速率转换。

公开(公告)号：US07734143B2

公开(公告)日：2010-06-08

申请号：US11343217

申请日：2006-01-31

申请人： Yoshiaki Mizuhashi ,  Mitsuo Nakajima ,  Yasutaka Tsuru ,  Koichi Hamada

发明人： Yoshiaki Mizuhashi ,  Mitsuo Nakajima ,  Yasutaka Tsuru ,  Koichi Hamada

IPC分类号： H04N7/00 ,  H04N7/26

CPC分类号： H04N17/04 ,  H04N5/45 ,  H04N21/4316 ,  H04N21/4318 ,  H04N21/440218 ,  H04N21/440281 ,  H04N21/4854

摘要： A disclosed technique for adjusting the image quality uses a moving picture for a sample stored in advance on a storage medium. A plurality of sample moving picture images, based on the moving picture for a sample read from the storage medium, having different image quality relative to each other are displayed on the screen. This technique enables confirmation of how the actual image having been subjected to the image quality adjustment would be displayed in an apparatus for displaying a moving image, such as a television receiver, because the sample stored on the storage medium is a moving picture.

摘要翻译： 所公开的用于调整图像质量的技术使用预先存储在存储介质上的样本的运动图像。 基于用于从存储介质读取的样品的运动图像，具有彼此具有不同图像质量的多个样本运动图像图像被显示在屏幕上。 由于存储在存储介质上的样本是运动图像，因此该技术能够确认在用于显示诸如电视接收机的运动图像的装置中如何显示已经进行图像质量调整的实际图像。

公开(公告)号：US07430021B2

公开(公告)日：2008-09-30

申请号：US11061826

申请日：2005-02-22

申请人： Masahiro Nako ,  Yasutaka Tsuru ,  Ryo Hasegawa ,  Katsunobu Kimura ,  Hiroshi Aoki

发明人： Masahiro Nako ,  Yasutaka Tsuru ,  Ryo Hasegawa ,  Katsunobu Kimura ,  Hiroshi Aoki

IPC分类号： H04N5/208

CPC分类号： H04N5/208

摘要： A picture quality correction circuit is provided which performs contour correction by grasping features of an input video signal accurately. The correction circuit has a filter circuit for extracting contour components in an inputted video signal, a contour component nonlinear processor for changing amplitudes of the contour components extracted by the filter circuit, an adder for adding outputs of the contour component nonlinear processor and the input video signal, a histogram detection circuit for detecting a histogram of the contour components extracted by the filter circuit, and a control circuit for controlling contour emphasis quantities for the contour component nonlinear processor in accordance with the results of detection by the histogram detection circuit.

摘要翻译： 提供了通过精确地掌握输入视频信号的特征来执行轮廓校正的图像质量校正电路。 校正电路具有用于提取输入视频信号中的轮廓分量的滤波器电路，用于改变由滤波电路提取的轮廓成分的幅度的轮廓分量非线性处理器，用于将轮廓分量非线性处理器和输入视频的输出相加的加法器 信号，用于检测由滤波器电路提取的轮廓分量的直方图的直方图检测电路，以及根据直方图检测电路的检测结果来控制轮廓分量非线性处理器的轮廓强调量的控制电路。

公开(公告)号：US07382414B2

公开(公告)日：2008-06-03

申请号：US10998163

申请日：2004-11-29

申请人： Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata

发明人： Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata

IPC分类号： H04N5/21 ,  H04N5/52

CPC分类号： H04N5/57 ,  H04N5/208 ,  H04N21/4318 ,  H04N21/44008

摘要： A video signal processing apparatus includes a characteristic detection circuit for detecting luminance distribution corresponding to one frame of a video signal, a contrast compensation circuit for compensating contrast of the video signal, an edge compensation circuit for compensating an edge portion of the video signal, and a control circuit for determining a luminance range to be controlled on the basis of the luminance distribution detected by the characteristic detection circuit, and controlling the contrast compensation circuit and edge compensation circuit to conduct predetermined compensation on the video signal belonging to the luminance range. The control circuit controls the contrast compensation circuit to increase contrast for the video signal in the luminance range as compared with the video signal in other regions, and controls the edge compensation circuit to make an edge compensation quantity for the video signal in the luminance range smaller as compared with other regions.

摘要翻译： 视频信号处理装置包括用于检测对应于视频信号的一帧的亮度分布的特性检测电路，用于补偿视频信号的对比度的对比度补偿电路，补偿视频信号的边缘部分的边缘补偿电路，以及 控制电路，用于基于由特性检测电路检测的亮度分布来确定要被控制的亮度范围，并且控制对比度补偿电路和边缘补偿电路对属于亮度范围的视频信号进行预定的补偿。 控制电路控制对比度补偿电路，以增加与其他区域的视频信号相比在亮度范围内的视频信号的对比度，并且控制边缘补偿电路使亮度范围内的视频信号的边缘补偿量变小 与其他地区相比。

公开(公告)号：US06611294B1

公开(公告)日：2003-08-26

申请号：US09720327

申请日：2000-12-22

申请人： Yasuhiro Hirano ,  Kazuo Ishikura ,  Masato Sugiyama ,  Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata ,  Takashi Kanehachi

发明人： Yasuhiro Hirano ,  Kazuo Ishikura ,  Masato Sugiyama ,  Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata ,  Takashi Kanehachi

IPC分类号： H04N701

CPC分类号： H04N7/012 ,  H04N5/145 ,  H04N5/4401 ,  H04N7/014 ,  H04N19/513 ,  H04N19/61

摘要： The present invention provides a movement correction frame count transformation apparatus for carrying out frame count transformation processing on a picture signal. In the apparatus, an input picture signal (S1) of interlaced scanning is converted into a signal (S2) of sequential scanning by an IP conversion unit (1). A movement detecting unit (3) detects movement detection signals (MD1 and MD2). A block unit movement vector searching unit (4) detects a block unit movement vector (BMV) by carrying out block matching processing. A movement vector correcting unit (5) carries out miniblock division processing to generate a movement vector (BV) if a movement correction error is equal to or greater than a threshold value. A pixel unit movement vector generating unit (6) generates a movement vector with a smallest error component between a frame signal of a current frame and a frame signal of an immediately preceding frame as a movement vector of a pixel. An MC interpolation frame signal generating unit (7) generates an interpolation frame in movement correction processing carried out by a median filter in order to produce a signal (S4) of sequential scanning as a result of frame count transformation based on movement correction.

摘要翻译： 本发明提供一种用于对图像信号执行帧计数变换处理的移动校正帧计数变换装置。 在该装置中，隔行扫描的输入图像信号（S1）被IP转换单元（1）转换成顺序扫描的信号（S2）。 移动检测单元（3）检测移动检测信号（MD1和MD2）。 块单元移动向量搜索单元（4）通过执行块匹配处理来检测块单元移动向量（BMV）。 如果移动校正误差等于或大于阈值，则运动矢量校正单元（5）执行小块分割处理以生成运动矢量（BV）。 像素单元移动向量生成单元（6）生成当前帧的帧信号与前一帧的帧信号之间的最小误差分量的运动矢量作为像素的运动矢量。 MC内插帧信号生成单元（7）生成由中值滤波器执行的移动校正处理中的内插帧，以便基于移动校正产生作为帧计数变换的结果的顺序扫描的信号（S4）。