公开(公告)号：US08896638B2

公开(公告)日：2014-11-25

申请号：US13088207

申请日：2011-04-15

Applicant: Hiroyuki Kurabayashi ,  Yasutaka Tsuru ,  Yuya Ogi ,  Kazuhiko Tanaka ,  Akihiro Shiraishi

Inventor： Hiroyuki Kurabayashi ,  Yasutaka Tsuru ,  Yuya Ogi ,  Kazuhiko Tanaka ,  Akihiro Shiraishi

IPC: G09G5/10 ,  G09G3/34

CPC classification number: G09G3/3426 ,  G09G2320/0233 ,  G09G2320/0238 ,  G09G2320/0606 ,  G09G2320/0646 ,  G09G2320/0653 ,  G09G2360/16

Abstract: An initial light control value calculation section calculates the backlight's initial light control value K0 according to brightness of an inputted image signal for each area. A black area measurement section measures a black area S by obtaining ratio of the number of pixels satisfying Y≦Y0 (Y: brightness signal level, Y0: black level threshold) in the screen. A minimum light control value output section determines a minimum light control value Kmin based on comparison between the measured black area S and a black area threshold S0 and outputs a maximum value permissible for the light control value as the value Kmin when the black area S is the threshold value S0 or less. An LED control signal calculation section outputs a control signal to LED light sources based on a light control value K1 as the higher one of K0 and Kmin.

Abstract translation: 初始光控制值计算部根据每个区域的输入图像信号的亮度来计算背光源的初始光控制值K0。 黑色区域测量部通过获得满足Y＆nlE; Y0（Y：亮度信号电平，Y0：黑色电平阈值））的像素数的比例来测量黑色区域S. 最小光控制值输出部根据被测量的黑色区域S和黑色区域阈值S0之间的比较来确定最小光控制值Kmin，并且当黑色区域S为黑色区域S时，将控制值允许的最大值作为值Kmin输出 阈值S0以下。 LED控制信号计算部基于作为K0和Kmin中较高者的光控制值K1将控制信号输出到LED光源。

公开(公告)号：US08736543B2

公开(公告)日：2014-05-27

申请号：US13093667

申请日：2011-04-25

Applicant: Hidenao Kubota ,  Yasutaka Tsuru

Inventor： Hidenao Kubota ,  Yasutaka Tsuru

IPC: G09G3/36

CPC classification number: G09G3/3426 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2360/144 ,  G09G2360/16

Abstract: An area control section individually sets illumination intensity (light control value) of each backlight cell corresponding to each area of the display screen. A spatial filter corrects the light control values so that spatial distribution of the light control values becomes more moderate between adjoining areas. A black area control section sets the minimum value of the light control value based on a “black area” in the screen. A power control section corrects the light control values so that power consumption of the backlight does not exceed a limit value. A shading control section corrects the light control values to relatively lower brightness in the peripheral part of the screen compared to the central part of the screen. A micro-controller switches the operations of the above light control value correcting sections according to an image display mode selected by the user.

Abstract translation: 区域控制部分分别设置与显示画面的各区域对应的各背光单元的照明强度（光控制值）。 空间滤波器校正光控制值，使得光控制值的空间分布在相邻区域之间变得更温和。 黑区控制部根据画面中的“黑区”设定光控制值的最小值。 功率控制部分校正光控制值，使得背光的功耗不超过限制值。 与屏幕的中央部分相比，阴影控制部分将光控制值校正到屏幕周边部分的相对较低的亮度。 微控制器根据用户选择的图像显示模式切换上述光控制值校正部分的操作。

公开(公告)号：US20110292018A1

公开(公告)日：2011-12-01

申请号：US13093667

申请日：2011-04-25

Applicant: Hidenao KUBOTA ,  Yasutaka Tsuru

Inventor： Hidenao KUBOTA ,  Yasutaka Tsuru

IPC: G06F3/038 ,  G09G3/36

CPC classification number: G09G3/3426 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2360/144 ,  G09G2360/16

Abstract: An area control section individually sets illumination intensity (light control value) of each backlight cell corresponding to each area of the display screen. A spatial filter corrects the light control values so that spatial distribution of the light control values becomes more moderate between adjoining areas. A black area control section sets the minimum value of the light control value based on a “black area” in the screen. A power control section corrects the light control values so that power consumption of the backlight does not exceed a limit value. A shading control section corrects the light control values to relatively lower brightness in the peripheral part of the screen compared to the central part of the screen. A micro-controller switches the operations of the above light control value correcting sections according to an image display mode selected by the user.

Abstract translation: 区域控制部分分别设置与显示画面的各区域对应的各背光单元的照明强度（光控制值）。 空间滤波器校正光控制值，使得光控制值的空间分布在相邻区域之间变得更温和。 黑区控制部根据画面中的“黑区”设定光控制值的最小值。 功率控制部分校正光控制值，使得背光的功耗不超过限制值。 与屏幕的中央部分相比，阴影控制部分将光控制值校正到屏幕周边部分的相对较低的亮度。 微控制器根据用户选择的图像显示模式切换上述光控制值校正部分的操作。

公开(公告)号：US20110267379A1

公开(公告)日：2011-11-03

申请号：US13088207

申请日：2011-04-15

Applicant: Hiroyuki KURABAYASHI ,  Yasutaka Tsuru ,  Yuya Ogi ,  Kazuhiko Tanaka ,  Akihiro Shiraishi

Inventor： Hiroyuki KURABAYASHI ,  Yasutaka Tsuru ,  Yuya Ogi ,  Kazuhiko Tanaka ,  Akihiro Shiraishi

IPC: G09G5/10

CPC classification number: G09G3/3426 ,  G09G2320/0233 ,  G09G2320/0238 ,  G09G2320/0606 ,  G09G2320/0646 ,  G09G2320/0653 ,  G09G2360/16

Abstract: An initial light control value calculation section calculates the backlight's initial light control value K0 according to brightness of an inputted image signal for each area. A black area measurement section measures a black area S by obtaining ratio of the number of pixels satisfying Y≦Y0 (Y: brightness signal level, Y0: black level threshold) in the screen. A minimum light control value output section determines a minimum light control value Kmin based on comparison between the measured black area S and a black area threshold S0 and outputs a maximum value permissible for the light control value as the value Kmin when the black area S is the threshold value S0 or less. An LED control signal calculation section outputs a control signal to LED light sources based on a light control value K1 as the higher one of K0 and Kmin.

Abstract translation: 初始光控制值计算部根据每个区域的输入图像信号的亮度来计算背光源的初始光控制值K0。 黑色区域测量部通过获得满足Y＆nlE; Y0（Y：亮度信号电平，Y0：黑色电平阈值））的像素数的比例来测量黑色区域S. 最小光控制值输出部根据被测量的黑色区域S和黑色区域阈值S0之间的比较来确定最小光控制值Kmin，并且当黑色区域S为黑色区域S时，将控制值允许的最大值作为值Kmin输出 阈值S0以下。 LED控制信号计算部基于作为K0和Kmin中较高者的光控制值K1将控制信号输出到LED光源。

公开(公告)号：US08009246B2

公开(公告)日：2011-08-30

申请号：US12129743

申请日：2008-05-30

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

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

IPC: G02F1/1335 ,  G02F1/1333 ,  F21V7/04

CPC classification number: G02F1/133604 ,  G02F1/133608 ,  G02F1/133611

Abstract: A direct type backlight unit used in a liquid crystal display device is provided which can suppress lowering of luminance at an electrode portion of a linear light source. A reflecting plate is formed on a side wall of a box-shaped reflector close to an end of a linear light source. The reflector reflects light beams from the linear light source to be guided toward a liquid crystal panel. The reflecting plate on the side wall has at least two inclined surfaces. The inclined surfaces may have a stepped shape or a convex ridge shape. According to this arrangement, it is possible to reduce or eliminate decrease of the luminance level at ends of an effective display area of a liquid crystal panel.

Abstract translation: 提供了一种用于液晶显示装置的直接型背光单元，其可以抑制线性光源的电极部分处的亮度降低。 反射板形成在靠近线状光源的端部的箱形反射器的侧壁上。 反射器反射来自线状光源的光束被引导到液晶面板。 侧壁上的反射板具有至少两个倾斜表面。 倾斜表面可以具有阶梯形状或凸脊形状。 根据该结构，能够降低或消除液晶面板的有效显示区域的端部的亮度水平的降低。

公开(公告)号：US20090150961A1

公开(公告)日：2009-06-11

申请号：US12326930

申请日：2008-12-03

Applicant: Nobuaki KABUTO ,  Yasutaka Tsuru ,  Yuya Ogi

Inventor： Nobuaki KABUTO ,  Yasutaka Tsuru ,  Yuya Ogi

IPC: H04N7/173

CPC classification number: H04N5/38 ,  G09G5/006 ,  G09G2370/045 ,  G09G2370/047 ,  G09G2370/12 ,  G09G2370/16 ,  H04N13/161 ,  H04N13/172 ,  H04N13/194 ,  H04N19/61 ,  H04N21/43635 ,  H04N21/43637

Abstract: The invention has: a first register that is set when receiving a CEC message which a video signal source reads an EDID of a video transmitting apparatus and issues and is reset in response to a leading edge of 5V that is supplied from the video signal source; and a second register which reads an EDID of a video displaying apparatus, is set when it is decided that the video displaying apparatus is a predetermined video displaying apparatus, and is reset when a state where an HPD is in a state of “L” has continued for a predetermined period of time or longer. Only when both of the first and second registers have been set, it is determined that a predetermined video signal source, the video transmitting apparatus, and the video displaying apparatus have directly been connected.

Abstract translation: 本发明具有：当接收到视频信号源读取视频发送装置的EDID并发出并根据从视频信号源提供的前沿5V被复位的CEC消息时设置的第一寄存器; 并且当确定视频显示设备是预定的视频显示设备时，设置读取视频显示设备的EDID的第二寄存器，并且当HPD处于“L”状态的状态具有 持续一段时间或更长时间。 只有当第一和第二寄存器都被设置时，确定已经直接连接了预定的视频信号源，视频发送装置和视频显示装置。

公开(公告)号：US20090059125A1

公开(公告)日：2009-03-05

申请号：US12230726

申请日：2008-09-04

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

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

IPC: G02F1/13357

CPC classification number: G02F1/133611 ,  G02F1/133603 ,  G02F2001/133607 ,  G02F2203/02

Abstract: An image display apparatus includes: a plurality of light sources for emitting light; an optical uniformizing portion for uniformizing light emitted from the plurality of light sources; a total reflection portion disposed above the plurality of light sources, the total reflection portion totally reflecting light from the optical uniformizing portion; an optical guide portion for guiding light totally reflected at the total reflection portion; an optical diffusion unit for diffusing light from the total reflection portion and outputting the diffused light; an optical parallelizing unit for parallelizing light from the optical diffusion unit; and a liquid crystal panel for modulating light from the optical parallelizing unit into an optical image in accordance with an image signal and displaying the optical image.

Abstract translation: 一种图像显示装置包括：多个用于发光的光源; 用于使从所述多个光源发射的光均匀化的光学均匀化部分; 全反射部分，设置在多个光源的上方，全反射部分全反射来自光学均匀化部分的光; 用于引导在全反射部分全反射的光的光导部; 光漫射单元，用于漫射来自全反射部分的光并输出漫射光; 用于使来自光扩散单元的光并行化的光学并行化单元; 以及用于根据图像信号将来自光学并行化单元的光调制成光学图像并显示光学图像的液晶面板。

公开(公告)号：US20070273787A1

公开(公告)日：2007-11-29

申请号：US11646405

申请日：2006-12-28

Applicant: Masahiro Ogino ,  Yasutaka Tsuru ,  Yoshiaki Mizuhashi ,  Junichi Satoh

Inventor： Masahiro Ogino ,  Yasutaka Tsuru ,  Yoshiaki Mizuhashi ,  Junichi Satoh

IPC: H04N7/01

CPC classification number: H04N7/015

Abstract: 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.

Abstract translation: 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：US20050285977A1

公开(公告)日：2005-12-29

申请号：US11061826

申请日：2005-02-22

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

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

IPC: H04N5/14 ,  H04N5/208 ,  H04N5/21

CPC classification number: H04N5/208

Abstract: 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.

Abstract translation: 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：US06509930B1

公开(公告)日：2003-01-21

申请号：US09596555

申请日：2000-06-19

Applicant: Yasuhiro Hirano ,  Takaaki Matono ,  Haruki Takata ,  Takashi Hasegawa ,  Kazuo Ishikura ,  Masato Sugiyama ,  Mitsuo Nakajima ,  Yasutaka Tsuru

Inventor： Yasuhiro Hirano ,  Takaaki Matono ,  Haruki Takata ,  Takashi Hasegawa ,  Kazuo Ishikura ,  Masato Sugiyama ,  Mitsuo Nakajima ,  Yasutaka Tsuru

IPC: H04N701

CPC classification number: H04N7/012 ,  H04N5/145 ,  H04N5/147

Abstract: A low-cost motion-compensated picture signal scan conversion circuit ensuring high picture quality is to be provided. The circuit has a motion-adaptive first interpolation signal generator; a second motion-compensated interpolation signal generator; a motion vector detector; and a setting unit for checking the reliability of motion compensation by comparing signals from the second interpolation signal generator with signals on interlaced scanning lines, and setting the selection of signals from the first and second interpolation signal generators, wherein interlaced scanned signals are converted into progressive scanned signals by setting the threshold so that the threshold become smaller with an increase in the number of re-searched blocks in the detection of motion vectors.

Abstract translation: 提供确保高图像质量的低成本运动补偿图像信号扫描转换电路。 该电路具有运动自适应第一内插信号发生器; 第二运动补偿插值信号发生器; 运动矢量检测器; 以及设置单元，用于通过将来自第二内插信号发生器的信号与隔行扫描线上的信号进行比较来检查运动补偿的可靠性，以及设置来自第一和第二内插信号发生器的信号的选择，其中隔行扫描信号被转换为渐进 通过设置阈值使得阈值随着检测运动矢量中的重新搜索的块的数量的增加而变小。