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公开(公告)号：US07414608B2
公开(公告)日：2008-08-19
申请号：US10837712
申请日：2004-05-04
IPC分类号： G09G3/36
CPC分类号： G09G3/3611 , G06F3/14 , G09G3/3406 , G09G3/3426 , G09G2320/0238 , G09G2320/0247 , G09G2320/0271 , G09G2320/0276 , G09G2320/0626 , G09G2320/0646 , G09G2320/0653 , G09G2320/066 , G09G2320/103 , G09G2330/021 , G09G2340/10 , G09G2360/145 , G09G2360/16
摘要： An image display apparatus and method provided for visually improving a sense of contrast by adjusting contrast and a light source to have a correlation. A characteristics detection part detects MAX, MIN, and APL (average) of an input signal. A control data generation part calculates Gain for amplifying a difference between MAX and MIN to a width of a dynamic range and Offset indicating the DC level to be shifted so that the input video signal amplified by Gain falls within the output dynamic range of a DC level adjustment part. A signal amplitude adjustment part amplifies the input video signal with reference to APL and in accordance with Gain. The DC level adjustment part shifts the DC level of the amplified input video signal in accordance with a value of Offset. A light source control part controls a light source so that a visual brightness level on a screen is equal to a brightness level of the input video signal.
摘要翻译： 一种图像显示装置和方法，用于通过调整对比度和光源来具有相关性来视觉上提高对比度感。 特性检测部分检测输入信号的MAX，MIN和APL（平均）。 控制数据生成部分计算用于将MAX和MIN之间的差放大到动态范围的宽度的增益和指示要移位的DC电平的偏移，使得由增益放大的输入视频信号落在DC电平的输出动态范围内 调整部分。 信号幅度调整部分参考APL并根据增益放大输入视频信号。 DC电平调整部分根据Offset的值移位放大的输入视频信号的DC电平。 光源控制部分控制光源，使得屏幕上的视觉亮度水平等于输入视频信号的亮度水平。
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公开(公告)号：US20070063944A1
公开(公告)日：2007-03-22
申请号：US11604785
申请日：2006-11-28
申请人： Ichiro Sato , Katsuhiko Kumagawa , Kazuo Inoue , Taro Funamoto , Wataru Machidori , Katsuyuki Arimoto
发明人： Ichiro Sato , Katsuhiko Kumagawa , Kazuo Inoue , Taro Funamoto , Wataru Machidori , Katsuyuki Arimoto
IPC分类号： G09G3/36
CPC分类号： G02F1/134363 , G02F1/1368 , G02F2202/42 , G09G3/3611 , G09G2300/0434 , G09G2320/02 , G09G2320/0257 , G09G2320/0261 , G09G2340/16
摘要： When displaying moving images by using liquid crystal panels and others, a problem exists in that tail streaks occur, and image degradation is resultantly caused. To solve this problem, an echo suppression circuit divides a video signal into a pair composed of two successive frames for comparison between these two frames in signal level for the purpose of suppressing an echo phenomenon occurring when a liquid crystal panel displays video signals including moving images. If these two frames are not the same in signal level, the signal is accordingly corrected so as to equalize the signal level of these frames. Based on the video signals and others corrected by the echo suppression circuit, a controller operates the liquid crystal panel with AC drive through a source driver and a gate driver. As such, the drive voltage used to operate the liquid crystal panel with AC drive is adjusted so as to be balanced between positive and negative. In this manner, the tail streaks are prevented when displaying moving images.
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公开(公告)号：US20110007050A1
公开(公告)日：2011-01-13
申请号：US12877352
申请日：2010-09-08
申请人： Ichiro SATO , Katsuhiko KUMAGAWA , Kazuo INOUE , Taro FUNAMOTO , Wataru MACHIDORI , Katsuyuki ARIMOTO
发明人： Ichiro SATO , Katsuhiko KUMAGAWA , Kazuo INOUE , Taro FUNAMOTO , Wataru MACHIDORI , Katsuyuki ARIMOTO
CPC分类号： G02F1/134363 , G02F1/1368 , G02F2202/42 , G09G3/3611 , G09G2300/0434 , G09G2320/02 , G09G2320/0257 , G09G2320/0261 , G09G2340/16
摘要： When displaying moving images by using liquid crystal panels and others, a problem exists in that tail streaks occur, and image degradation is resultantly caused. To solve this problem, an echo suppression circuit divides a video signal into a pair composed of two successive frames for comparison between these two frames in signal level for the purpose of suppressing an echo phenomenon occurring when a liquid crystal panel displays video signals including moving images. If these two frames are not the same in signal level, the signal is accordingly corrected so as to equalize the signal level of these frames. Based on the video signals and others corrected by the echo suppression circuit, a controller operates the liquid crystal panel with AC drive through a source driver and a gate driver. As such, the drive voltage used to operate the liquid crystal panel with AC drive is adjusted so as to be balanced between positive and negative. In this manner, the tail streaks are prevented when displaying moving images.
摘要翻译： 当使用液晶面板等显示运动图像时，存在发生尾部条纹的问题，并且导致图像劣化。 为了解决这个问题，回波抑制电路将视频信号分成由两个连续帧构成的一对，用于在信号电平的这两个帧之间进行比较，以便抑制当液晶面板显示包括运动图像的视频信号时发生的回波现象 。 如果这两个帧在信号电平上不相同，则相应地校正信号以使这些帧的信号电平相等。 基于视频信号和由回波抑制电路校正的其他信号，控制器通过源极驱动器和栅极驱动器通过AC驱动来操作液晶面板。 因此，用于操作具有AC驱动的液晶面板的驱动电压被调节以便在正负之间平衡。 以这种方式，当显示运动图像时可以防止尾部条纹。
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公开(公告)号：US07265743B2
公开(公告)日：2007-09-04
申请号：US10837628
申请日：2004-05-04
IPC分类号： G09G3/36
CPC分类号： G09G3/3611 , G06F3/14 , G09G3/3406 , G09G3/3426 , G09G2320/0238 , G09G2320/0247 , G09G2320/0271 , G09G2320/0276 , G09G2320/0626 , G09G2320/0646 , G09G2320/0653 , G09G2320/066 , G09G2320/103 , G09G2330/021 , G09G2340/10 , G09G2360/145 , G09G2360/16
摘要： An image display apparatus and method are provided for visually improving a sense of contrast by adjusting contrast and a light source to have a correlation. A characteristics detection part detects MAX, MIN, and APL (average) of an input signal. A control data generation part calculates Gain for amplifying a difference between MAX and MIN to a width of a dynamic range and Offset indicating the DC level to be shifted so that the input video signal amplified by Gain falls within the output dynamic range of a DC level adjustment part. A signal amplitude adjustment part amplifies the input video signal with reference to APL and in accordance with Gain. The DC level adjustment part shifts the DC level of the amplified input video signal in accordance with a value of Offset. A light source control part controls a light source so that a visual brightness level on a screen is equal to a brightness level of the input video signal.
摘要翻译： 提供了一种图像显示装置和方法，用于通过调节对比度和光源来具有相关性来视觉上提高对比度感。 特性检测部分检测输入信号的MAX，MIN和APL（平均）。 控制数据生成部分计算用于将MAX和MIN之间的差放大到动态范围的宽度的增益和指示要移位的DC电平的偏移，使得由增益放大的输入视频信号落在DC电平的输出动态范围内 调整部分。 信号幅度调整部分参考APL并根据增益放大输入视频信号。 DC电平调整部分根据Offset的值移位放大的输入视频信号的DC电平。 光源控制部分控制光源，使得屏幕上的视觉亮度水平等于输入视频信号的亮度水平。
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公开(公告)号：US06980225B2
公开(公告)日：2005-12-27
申请号：US10297081
申请日：2002-03-20
申请人： Taro Funamoto , Wataru Machidori , Katsuyuki Arimoto , Yoshihito Ohta , Takahiro Kobayashi , Yasuhiro Kumamoto , Tetsuo Kariya
发明人： Taro Funamoto , Wataru Machidori , Katsuyuki Arimoto , Yoshihito Ohta , Takahiro Kobayashi , Yasuhiro Kumamoto , Tetsuo Kariya
CPC分类号： G09G3/36 , G09G3/3406 , G09G2310/08 , G09G2320/0247 , G09G2320/0261 , G09G2320/062 , G09G2320/0626 , G09G2320/064 , G09G2320/0646 , G09G2320/0653 , G09G2320/066 , G09G2320/103 , G09G2320/106
摘要： A liquid crystal display apparatus that uses a backlight for display includes a video signal time compression circuit for compressing a video signal in the time axis direction and outputting the time-compressed video signal, an LCD controller for driving a liquid crystal panel based on the time-compressed video signal, and a source driver and a gate driver. The liquid crystal display apparatus also includes a motion detection circuit for detecting the amount of motion of a display image based on the video signal, a PWM modulation pulse generation circuit for generating modulation pulses different in frequency according to the detection result from the motion detection circuit, and an inverter for lighting up the backlight based on the modulation pulses, to thereby enable reduction of image contour blurring in a moving image and reduction of flicker in a still image.
摘要翻译： 使用背光源进行显示的液晶显示装置包括：视频信号时间压缩电路，用于在时间轴方向压缩视频信号并输出时间压缩视频信号; LCD控制器，用于基于时间驱动液晶面板 压缩视频信号，以及源驱动器和栅极驱动器。 液晶显示装置还包括：运动检测电路，用于基于视频信号检测显示图像的运动量; PWM调制脉冲发生电路，用于根据运动检测电路的检测结果产生不同频率的调制脉冲; 以及用于基于调制脉冲来点亮背光的逆变器，从而能够减少运动图像中的图像轮廓模糊并减少静止图像中的闪烁。
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公开(公告)号：US08189143B2
公开(公告)日：2012-05-29
申请号：US12296722
申请日：2007-04-02
申请人： Wataru Machidori , Satoshi Kitao
发明人： Wataru Machidori , Satoshi Kitao
IPC分类号： G02F1/1333 , G02B27/22 , H04N13/04
CPC分类号： G02F1/133512 , B60K35/00 , B60K2350/901 , B60K2350/903 , G02F2001/134345 , H04N2013/403
摘要： A liquid crystal display panel is divided into a plurality of regions and a plurality of regions extending in respective striped shapes. The plurality of regions and the plurality of regions are arranged so as to alternately align. A plurality of sub-pixels are assigned to a first group and a second group, three sub-pixels of the first group constitute a pixel, and three sub-pixels of the second group constitute a pixel. Each pair of regions adjacent to each other constitutes each set, and parallax barriers are formed in a portion on a black matrix between adjacent sets and portions on the black matrix on outer sides of the regions positioned at ends, respectively.
摘要翻译： 液晶显示面板被分为多个区域和沿各个条纹形状延伸的多个区域。 多个区域和多个区域被布置成交替对准。 多个子像素被分配给第一组和第二组，第一组的三个子像素构成像素，并且第二组的三个子像素构成像素。 彼此相邻的每对区域构成每组，并且在相邻组之间的黑矩阵上的部分和位于端部的区域的外侧上的黑矩阵上的部分之间分别形成视差屏障。
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公开(公告)号：US20090279025A1
公开(公告)日：2009-11-12
申请号：US12296722
申请日：2007-04-02
申请人： Wataru Machidori , Satoshi Kitao
发明人： Wataru Machidori , Satoshi Kitao
IPC分类号： G02F1/1333
CPC分类号： G02F1/133512 , B60K35/00 , B60K2350/901 , B60K2350/903 , G02F2001/134345 , H04N2013/403
摘要： A liquid crystal display panel is divided into a plurality of regions and a plurality of regions extending in respective striped shapes. The plurality of regions and the plurality of regions are arranged so as to alternately align. A plurality of sub-pixels are assigned to a first group and a second group, three sub-pixels of the first group constitute a pixel, and three sub-pixels of the second group constitute a pixel. Each pair of regions adjacent to each other constitutes each set, and parallax barriers are formed in a portion on a black matrix between adjacent sets and portions on the black matrix on outer sides of the regions positioned at ends, respectively.
摘要翻译： 液晶显示面板被分为多个区域和沿各个条纹形状延伸的多个区域。 多个区域和多个区域被布置成交替对准。 多个子像素被分配给第一组和第二组，第一组的三个子像素构成像素，并且第二组的三个子像素构成像素。 彼此相邻的每对区域构成每组，并且在相邻组之间的黑矩阵上的部分和位于端部的区域的外侧上的黑矩阵上的部分之间分别形成视差屏障。
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公开(公告)号：US07173609B2
公开(公告)日：2007-02-06
申请号：US10049049
申请日：2001-06-08
申请人： Ichiro Sato , Katsuhiko Kumagawa , Kazuo Inoue , Taro Funamoto , Wataru Machidori , Katsuyuki Arimoto
发明人： Ichiro Sato , Katsuhiko Kumagawa , Kazuo Inoue , Taro Funamoto , Wataru Machidori , Katsuyuki Arimoto
IPC分类号： G09G3/36
CPC分类号： G02F1/134363 , G02F1/1368 , G02F2202/42 , G09G3/3611 , G09G2300/0434 , G09G2320/02 , G09G2320/0257 , G09G2320/0261 , G09G2340/16
摘要： When displaying moving images by using liquid crystal panels and others, a problem exists in that tail streaks occur, and image degradation is resultantly caused. To solve this problem, an echo suppression circuit divides a video signal into a pair composed of two successive frames for comparison between these two frames in signal level for the purpose of suppressing an echo phenomenon occurring when a liquid crystal panel displays video signals including moving images. If these two frames are not the same in signal level, the signal is accordingly corrected so as to equalize the signal level of these frames. Based on the video signals and others corrected by the echo suppression circuit, a controller operates the liquid crystal panel with AC drive through a source driver and a gate driver. As such, the drive voltage used to operate the liquid crystal panel with AC drive is adjusted so as to be balanced between positive and negative. In this manner, the tail streaks are prevented when displaying moving images.
摘要翻译： 当使用液晶面板等显示运动图像时，存在发生尾部条纹的问题，并且导致图像劣化。 为了解决这个问题，回波抑制电路将视频信号分成由两个连续的帧组成的对，用于在信号电平的这两个帧之间进行比较，以便抑制当液晶面板显示包括运动图像的视频信号时发生的回波现象 。 如果这两个帧在信号电平上不相同，则相应地校正信号以使这些帧的信号电平相等。 基于视频信号和由回波抑制电路校正的其他信号，控制器通过源极驱动器和栅极驱动器通过AC驱动来操作液晶面板。 因此，用于操作具有AC驱动的液晶面板的驱动电压被调节以便在正负之间平衡。 以这种方式，当显示运动图像时可以防止尾部条纹。
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公开(公告)号：US06795053B1
公开(公告)日：2004-09-21
申请号：US09743324
申请日：2001-01-09
IPC分类号： G09G336
CPC分类号： G09G3/3611 , G06F3/14 , G09G3/3406 , G09G3/3426 , G09G2320/0238 , G09G2320/0247 , G09G2320/0271 , G09G2320/0276 , G09G2320/0626 , G09G2320/0646 , G09G2320/0653 , G09G2320/066 , G09G2320/103 , G09G2330/021 , G09G2340/10 , G09G2360/145 , G09G2360/16
摘要： Provided are an image display apparatus and method capable of visually improving a sense of contrast by adjusting contrast and a light source to have correlation. A characteristics detection part 11 detects MAX, MIN, and APL of an input signal. A control data generation part 12 calculates Gain for amplifying a difference between MAX and MIN to a width of a dynamic range and Offset indicating the DC level to be shifted so that the input video signal amplified by Gain falls with in the output dynamic range of a DC level adjustment part 13B. A signal amplitude adjustment part 13A amplifies the input video signal with reference to APL and in accordance with Gain. The DC level adjustment part 13B shifts the DC level of the amplified input video signal in accordance with a value of Offset. A light source control part 16 controls a light source 18 so that a visual brightness level on a screen is equal to a brightness level of the input video signal.
摘要翻译： 提供一种图像显示装置和方法，其能够通过调整对比度和光源来具有相关性来可视地改善对比度感。 特性检测部11检测输入信号的MAX，MIN，APL。 控制数据生成部12计算用于将MAX和MIN之间的差放大到动态范围的宽度的增益，以及指示要移位的DC电平的偏移，使得由增益放大的输入视频信号在输出动态范围内下降 直流电平调整部13B。 信号幅度调整部件13A参考APL并根据增益放大输入视频信号。 DC电平调整部13B根据Offset的值移位放大的输入视频信号的DC电平。 光源控制部分16控制光源18，使得屏幕上的视觉亮度水平等于输入视频信号的亮度水平。
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