公开(公告)号：US20080297463A1

公开(公告)日：2008-12-04

申请号：US12017371

申请日：2008-01-22

申请人： Yasutaka TSURU ,  Satoshi Ouchi ,  Seiji Murata ,  Mayumi Nagayoshi

发明人： Yasutaka TSURU ,  Satoshi Ouchi ,  Seiji Murata ,  Mayumi Nagayoshi

IPC分类号： G09G3/36 ,  G02F1/13357

CPC分类号： G09G3/3426 ,  G09G3/3611 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2360/16 ,  H04N5/57 ,  H04N5/66 ,  H04N9/68 ,  H04N21/4318 ,  H04N21/44008

摘要： For the purpose of suppressing untrue black with the change in luminance of video, which is displayed as the same object, being reduced to improve the contrast, there is provided a liquid crystal display apparatus that is capable of: extracting the pixel frequency distribution of an input video signal on a luminance level basis, and extracting the pixel frequency distribution of specific color from a color-difference signal of input video in a screen area, the color-difference signal being determined from the luminance distribution of a plurality of backlights; on the basis of the result of the extraction, determining the control amount of the luminance of the plurality of backlights, and the correction amount of the luminance of a liquid crystal panel, on a screen area basis; controlling the luminance of the plurality of backlights on the basis of the control amount of the luminance; and at the same time, controlling the luminance of the input video signal on the basis of the correction amount of the luminance.

摘要翻译： 为了抑制显示为相同对象的视频亮度变化的不真实黑色，为了提高对比度，提供了一种液晶显示装置，其能够：提取像素频率分布 在亮度级基础上输入视频信号，并且从屏幕区域中的输入视频的色差信号中提取特定颜色的像素频率分布，所述色差信号由多个背光的亮度分布确定; 基于提取结果，基于屏幕区域确定多个背光的亮度的控制量和液晶面板的亮度的校正量; 基于亮度的控制量来控制多个背光的亮度; 并且同时基于亮度的校正量来控制输入视频信号的亮度。

公开(公告)号：US20110316829A1

公开(公告)日：2011-12-29

申请号：US13091712

申请日：2011-04-21

申请人： Naoya OKA ,  Hiroyuki KURABAYASHI ,  Yasutaka TSURU ,  Kazuhiko TANAKA ,  Yuya OGI

发明人： Naoya OKA ,  Hiroyuki KURABAYASHI ,  Yasutaka TSURU ,  Kazuhiko TANAKA ,  Yuya OGI

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： G09G3/3426 ,  G09G2320/02 ,  G09G2320/0238 ,  G09G2320/0646 ,  G09G2360/16

摘要： A backlight of a liquid crystal display device is divided into a plurality of regions. A backlight area dimmer sets a dimming value for each of the regions of the backlight according to a characteristic amount of the input image. A backlight dimming limiter sets an upper limit and lower limit of the dimming value set by the backlight area dimmer. In this case, the backlight dimming limiter may set the upper and lower limits of the dimming value according to a combination of at least two pieces of information among illuminance information on the external light, category information on the input image and image mode information set by the user.

摘要翻译： 液晶显示装置的背光被分成多个区域。 背光区域调光器根据输入图像的特征量为背光的每个区域设置调光值。 背光调光限制器设定由背光区域调光器设定的调光值的上限和下限。 在这种情况下，背光调光限制器可以根据外部光的照度信息，输入图像的类别信息和由图像模式信息设定的图像模式信息之间的至少两条信息的组合来设定调光值的上限和下限 用户。

公开(公告)号：US20100194791A1

公开(公告)日：2010-08-05

申请号：US12629210

申请日：2009-12-02

申请人： Yuya OGI ,  Yasutaka TSURU ,  Kazuhiko TANAKA

发明人： Yuya OGI ,  Yasutaka TSURU ,  Kazuhiko TANAKA

IPC分类号： G09G5/10

CPC分类号： G06T5/40 ,  G06T5/008 ,  G06T2207/20012 ,  G09G3/3426 ,  G09G2320/0646 ,  G09G2360/16

摘要： For the purpose of obtaining a video signal by suppressing a black float while not consuming an excess electric power therein, not contributing to display of a backlight, a video display apparatus having a plural number of backlights for irradiating lights upon a display panel, comprises a histogram detector for conducting a histogram detection for each display region corresponding to that backlight from an input video signal of one (1) frame, a means for determining a control value of that plural number of backlights depending on a specific picture or video, which is detected by the histogram detector, and a video signal processor for controlling an amount of a controlled light the display panel of a display region, i.e., a put-out region, depending on the backlight control value, which is determined by the means for determining the control value of the backlight.

摘要翻译： 为了通过抑制黑色浮动而不消耗其中的多余电力来获得视频信号，不对显示背光有贡献，具有多个用于在显示面板上照射光的背光的视频显示装置包括： 直方图检测器，用于根据一（1）帧的输入视频信号对与所述背光对应的每个显示区域进行直方图检测;根据特定图像或视频来确定所述多个背光源的控制值的装置， 由直方图检测器检测的视频信号处理器，用于根据由用于确定的装置确定的背光控制值来控制显示区域的显示面板（即，放出区域）的受控光量的视频信号处理器 背光的控制值。

公开(公告)号：US20100295879A1

公开(公告)日：2010-11-25

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： G09G5/10

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：US20090207307A1

公开(公告)日：2009-08-20

申请号：US12327834

申请日：2008-12-04

申请人： Yasutaka TSURU ,  Yuya Ogi ,  Nobuaki Kabuto ,  Takeo Hioki ,  Kenya Kasahara ,  Kuninori Matsumi ,  Toyoshige Ohshika

发明人： Yasutaka TSURU ,  Yuya Ogi ,  Nobuaki Kabuto ,  Takeo Hioki ,  Kenya Kasahara ,  Kuninori Matsumi ,  Toyoshige Ohshika

IPC分类号： H04N3/27 ,  H04N5/14 ,  H04N5/44

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

摘要： 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.

摘要翻译： 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。