公开(公告)号：US07671901B2

公开(公告)日：2010-03-02

申请号：US11195870

申请日：2005-08-03

Applicant: Kozo Masuda ,  Yasutaka Tsuru

Inventor： Kozo Masuda ,  Yasutaka Tsuru

IPC: H04N5/235

CPC classification number: H04N9/643 ,  H04N5/20 ,  H04N5/58 ,  H04N9/68 ,  H04N21/4131 ,  H04N21/41407 ,  H04N21/42202 ,  H04N21/4318 ,  H04N21/44008

Abstract: An image processing apparatus has an input portion for receiving video signals, an illumination sensor for detecting illumination of an environmental light, a corrector for correcting the video signals, and a controller for controlling the corrector to correct the video signals in accordance with distribution of luminance or hue or saturation of the video signals and with the detected illumination when any change occurs in the video signal. The apparatus further has a detector for detecting a change of the video signals in accordance with a mean value of luminance of the inputted video signals, a corrector for correcting the video signals, and a controller for controlling the correction portion to correct the video signals in accordance with distribution of luminance or hue or saturation of the video signals when the detector detects the change of the video signals.

Abstract translation: 图像处理装置具有用于接收视频信号的输入部分，用于检测环境光的照明的照明传感器，用于校正视频信号的校正器，以及用于控制校正器以根据亮度分布校正视频信号的控制器 或视频信号的色调或饱和度以及视频信号中发生任何变化时的检测到的照明。 该装置还具有用于根据输入的视频信号的亮度的平均值来检测视频信号的变化的检测器，用于校正视频信号的校正器，以及用于控制校正部分以校正视频信号的视频信号的控制器 根据检测器检测到视频信号的变化时的视频信号的亮度或色调或饱和度的分布。

公开(公告)号：US20060215044A1

公开(公告)日：2006-09-28

申请号：US11195870

申请日：2005-08-03

Applicant: Kozo Masuda ,  Yasutaka Tsuru

Inventor： Kozo Masuda ,  Yasutaka Tsuru

IPC: H04N9/73

CPC classification number: H04N9/643 ,  H04N5/20 ,  H04N5/58 ,  H04N9/68 ,  H04N21/4131 ,  H04N21/41407 ,  H04N21/42202 ,  H04N21/4318 ,  H04N21/44008

Abstract: An image processing apparatus has an input portion for receiving video signals, an illumination sensor for detecting illumination of an environmental light, a corrector for correcting the video signals, and a controller for controlling the corrector to correct the video signals in accordance with distribution of luminance or hue or saturation of the video signals and with the detected illumination when any change occurs in the video signal. The apparatus further has a detector for detecting a change of the video signals in accordance with a mean value of luminance of the inputted video signals, a corrector for correcting the video signals, and a controller for controlling the correction portion to correct the video signals in accordance with distribution of luminance or hue or saturation of the video signals when the detector detects the change of the video signals.

Abstract translation: 图像处理装置具有用于接收视频信号的输入部分，用于检测环境光的照明的照明传感器，用于校正视频信号的校正器，以及用于控制校正器以根据亮度分布校正视频信号的控制器 或视频信号的色调或饱和度以及视频信号中发生任何变化时的检测到的照明。 该装置还具有用于根据输入的视频信号的亮度的平均值来检测视频信号的变化的检测器，用于校正视频信号的校正器，以及用于控制校正部分以校正视频信号的视频信号的控制器 根据检测器检测到视频信号的变化时的视频信号的亮度或色调或饱和度的分布。

公开(公告)号：US08957880B2

公开(公告)日：2015-02-17

申请号：US12491334

申请日：2009-06-25

Applicant: Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

Inventor： Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

IPC: G06F3/038 ,  G09G5/00 ,  G09G3/36 ,  F21V7/04 ,  G09G3/34

CPC classification number: G09G3/342 ,  G09G3/36 ,  G09G2320/0233 ,  G09G2320/062

Abstract: In a local dimming technology for reducing power consumption of a display device using a backlight as in a liquid crystal display, the backlight is configured by a plurality of independently controllable light sources, an image is divided into areas of the same number as that of the controllable light sources and light emission intensity of the light source is calculated based on a feature value of each area. However, this technology has a problem that when a backlight luminance distribution within each area is not uniform, image quality is deteriorated or a power consumption reduction effect is lowered.In the present invention, the image is divided into areas of the number greater than that of the controllable light sources, and the light emission intensity of each light source is determined based on the feature values of a plurality of areas to reduce the above-described problem.

Abstract translation: 在用于降低液晶显示器中使用背光的显示装置的功耗的局部调光技术中，背光由多个可独立控制的光源构成，图像被划分为与 基于每个区域的特征值计算可控光源和光源的发光强度。 然而，该技术存在的问题是，当各区域内的背光亮度分布不均匀时，图像质量劣化或降低功耗降低效果。 在本发明中，将图像分割为比可控光源大的数量的区域，并且基于多个区域的特征值来确定每个光源的发光强度，以减少上述 问题。

公开(公告)号：US20100045694A1

公开(公告)日：2010-02-25

申请号：US12491334

申请日：2009-06-25

Applicant: Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

Inventor： Kazuhiko Tanaka ,  Yasutaka Tsuru ,  Yuya Ogi

IPC: G09G3/36 ,  G09G5/02

CPC classification number: G09G3/342 ,  G09G3/36 ,  G09G2320/0233 ,  G09G2320/062

Abstract: In a local dimming technology for reducing power consumption of a display device using a backlight as in a liquid crystal display, the backlight is configured by a plurality of independently controllable light sources, an image is divided into areas of the same number as that of the controllable light sources and light emission intensity of the light source is calculated based on a feature value of each area. However, this technology has a problem that when a backlight luminance distribution within each area is not uniform, image quality is deteriorated or a power consumption reduction effect is lowered.In the present invention, the image is divided into areas of the number greater than that of the controllable light sources, and the light emission intensity of each light source is determined based on the feature values of a plurality of areas to reduce the above-described problem.

Abstract translation: 在用于降低液晶显示器中使用背光的显示装置的功耗的局部调光技术中，背光由多个可独立控制的光源构成，图像被划分为与 基于每个区域的特征值计算可控光源和光源的发光强度。 然而，该技术存在的问题是，当各区域内的背光亮度分布不均匀时，图像质量劣化或降低功耗降低效果。 在本发明中，将图像分割为比可控光源大的数量的区域，并且基于多个区域的特征值来确定每个光源的发光强度，以减少上述 问题。

公开(公告)号：US07333081B2

公开(公告)日：2008-02-19

申请号：US10893989

申请日：2004-07-20

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

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

IPC: G09G3/36

CPC classification number: G09G3/3406 ,  G09G3/2092 ,  G09G5/04 ,  G09G2360/16 ,  H04N9/3155

Abstract: 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.

Abstract translation: 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：US20060061842A1

公开(公告)日：2006-03-23

申请号：US11063752

申请日：2005-02-24

Applicant: Naoya Oka ,  Ryo Hasegawa ,  Yasutaka Tsuru ,  Hiroshi Aoki ,  Hirofumi Sakamoto

Inventor： Naoya Oka ,  Ryo Hasegawa ,  Yasutaka Tsuru ,  Hiroshi Aoki ,  Hirofumi Sakamoto

IPC: G03F3/08

CPC classification number: H04N5/202 ,  H04N9/69

Abstract: The present invention provides a technique for performing gamma correction processing when there are a plurality of characteristic areas, each of which is characterized by the high frequency in a luminance histogram to improve the impression of contrast. According to the present invention, a luminance characteristic detector (4) detects the luminance of an input image signal and a microcomputer (5) calculates an APL and a luminance histogram of an input image signal. A gamma correction circuit (6) performs the gamma correction processing in response to the luminosity of the input image signal by use of the result of the calculation carried out by the microcomputer (5). Then, if there are a plurality of characteristic areas, each of which is characterized by the high frequency in the luminance histogram, a characteristic emphasis circuit (7) performs grayscale extension processing for the plurality of characteristic areas. This makes it possible to perform the most suitable processing in response to the input image signal so that the impression of contrast is improved.

Abstract translation: 本发明提供了一种用于在存在多个特征区域时执行伽马校正处理的技术，每个特征区域的特征在于亮度直方图中的高频以改善对比度的印象。 根据本发明，亮度特性检测器（4）检测输入图像信号的亮度，并且微计算机（5）计算输入图像信号的APL和亮度直方图。 伽马校正电路（6）通过使用由微计算机（5）执行的计算结果，响应于输入图像信号的亮度来进行伽马校正处理。 然后，如果存在多个特征区域，其特征在于亮度直方图中的高频，特征强调电路（7）对多个特征区域进行灰度级扩展处理。 这使得可以响应于输入图像信号执行最合适的处理，从而改善了对比度的印象。

公开(公告)号：US08756347B2

公开(公告)日：2014-06-17

申请号：US12327834

申请日：2008-12-04

Applicant: Yasutaka Tsuru ,  Yuya Ogi ,  Nobuaki Kabuto ,  Takeo Hioki ,  Kenya Kasahara ,  Kuninori Matsumi ,  Toyoshige Ohshika

Inventor： Yasutaka Tsuru ,  Yuya Ogi ,  Nobuaki Kabuto ,  Takeo Hioki ,  Kenya Kasahara ,  Kuninori Matsumi ,  Toyoshige Ohshika

IPC: G06F3/00 ,  G06F13/00 ,  H04N21/4367 ,  H04N21/4363 ,  H04N21/436 ,  H04N21/443

CPC classification number: H04N17/004 ,  G09G5/006 ,  G09G2370/047 ,  G09G2370/06 ,  G09G2370/12 ,  H04N5/4403 ,  H04N21/4122 ,  H04N21/43615 ,  H04N21/43632 ,  H04N21/4367 ,  H04N21/4432

Abstract: According to our invention, linked operation between a monitor apparatus for displaying images, and a set-top box for transmitting image signals to the monitor apparatus via a required interface, can be achieved properly, even if both units are constructed in casings separate from each other. The monitor apparatus uses a CEC line to transmit a CEC vendor command including at least a code associated with unit information, and the set-top box apparatus transmits the CEC vendor command including at least the code associated with the unit information. Upon receiving the vendor command from the set-top box apparatus, the monitor apparatus switches to the linked operation with the set-top box.

Abstract translation: 根据本发明，用于显示图像的监视器装置和用于经由所需接口将图像信号发送到监视器装置的机顶盒之间的链接操作可以被适当地实现，即使这两个单元构造在与每一个分开的外壳中 其他。 监视器装置使用CEC线来发送至少包括与单元信息相关联的代码的CEC供应商命令，并且机顶盒装置发送至少包括与单元信息相关联的代码的CEC供应商命令。 当从机顶盒装置接收到供应商命令时，监视器装置利用机顶盒切换到链接操作。

公开(公告)号：US20110249039A1

公开(公告)日：2011-10-13

申请号：US13079076

申请日：2011-04-04

Applicant: Yuya OGI ,  Yasutaka Tsuru ,  Kazuhiko Tanaka

Inventor： Yuya OGI ,  Yasutaka Tsuru ,  Kazuhiko Tanaka

IPC: G09G5/10

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

Abstract: 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.

Abstract translation: 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：US20110157247A1

公开(公告)日：2011-06-30

申请号：US12963342

申请日：2010-12-08

Applicant: Kazuhiko TANAKA ,  Yasutaka Tsuru ,  Yuya Ogi

Inventor： Kazuhiko TANAKA ,  Yasutaka Tsuru ,  Yuya Ogi

IPC: G09G5/10 ,  G09G3/36

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

Abstract: 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.

Abstract translation: 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：US07911558B2

公开(公告)日：2011-03-22

申请号：US12127025

申请日：2008-05-27

Applicant: Mayumi Nagayoshi ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

Inventor： Mayumi Nagayoshi ,  Satoshi Ouchi ,  Seiji Murata ,  Yasutaka Tsuru

IPC: G02F1/1333 ,  G02F1/1335

CPC classification number: G02F1/133608 ,  G02F1/133604 ,  G02F2001/133612

Abstract: An image display apparatus includes a backlight unit including a plurality of light sources arranged in a flat, a reflecting portion for reflecting light from the light sources, a diffuser for diffusing the light from the light sources and the light reflected from the reflecting portion, and a chassis for maintaining or supporting the light sources, the reflecting portion and the diffuser; and a liquid crystal display unit which receives the light diffused by the diffuser of the backlight unit. Concave portions are formed in the chassis at positions corresponding to electrodes of the plurality of light sources, positions corresponding to light-emitting portions of the light sources are arranged in a flat, and a circuit for driving the liquid crystal display unit is provided on a rear surface of a planar portion of the chassis. Accordingly, it is possible to realize a thin lightweight backlight with high luminance and high luminance uniformity.

Abstract translation: 一种图像显示装置，包括：背光单元，包括平面布置的多个光源，用于反射来自光源的光的反射部;漫射来自光源的光和从反射部反射的光; 用于维持或支撑光源的底盘，反射部分和扩散器; 以及液晶显示单元，其接收由所述背光单元的漫射器漫射的光。 凹槽部分形成在底座中对应于多个光源的电极的位置处，与光源的发光部分相对应的位置被布置成平面，并且用于驱动液晶显示单元的电路设置在 底盘的平面部分的后表面。 因此，可以实现具有高亮度和高亮度均匀性的薄型轻质背光。