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1. 发明授权

US06542135B1 Plasma panel display device 失效
标题翻译：等离子面板显示设备
公开(公告)号：US06542135B1
公开(公告)日：2003-04-01
申请号：US09600151
申请日：2000-07-18
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita , Makoto Kawachi , Tadayuki Masumori , Takao Wakitani , Toshio Wakahara , Akira Yawata
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita , Makoto Kawachi , Tadayuki Masumori , Takao Wakitani , Toshio Wakahara , Akira Yawata
IPC分类号： G09G328
CPC分类号： G09G3/346 , G09G3/2029 , G09G3/2033 , G09G3/293 , G09G2320/0266
摘要： The display device of the present invention is provided with a means (8) for setting the writing pulse width of the attentional light-emitting sub-field wider than the normal writing pulse width at all the gray scale levels in the case where at least two continuous non-light-emitting sub-fields possibly exist before the attentional light-emitting sub-field at a certain gray scale level among all the gray scale levels specified on the basis of the number Z of sub-fields and the weighting of the sub-fields. According to the display device of the present invention, the discharge for writing can be stably executed without reducing the number of sub-fields in one field.
摘要翻译：本发明的显示装置设置有用于在所有灰度级别将注意发光子场的写入脉冲宽度设置为大于正常写入脉冲宽度的装置（8），在至少两个在基于子场数Z指定的所有灰度级之间的特定灰度级的注意发光子场之前，可能存在连续的非发光子场，并且子子的加权领域根据本发明的显示装置，可以在不减少一个场中的子场数的情况下稳定地执行用于写入的放电。

2. 发明授权

US06509884B2 Display device and luminance control method therefor 有权
公开(公告)号：US06509884B2
公开(公告)日：2003-01-21
申请号：US09994771
申请日：2001-11-28
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G328
CPC分类号： G09G3/2944 , G09G2320/0271 , G09G2320/041 , G09G2320/0626 , G09G2330/045
摘要： A temperature difference estimated value is found from a video signal using a temperature estimated value representing the temperature of the panel outer periphery of a display screen of a PDP and a reference value representing the temperature of the panel outer periphery of the PDP which is outputted from a panel periphery temperature setter by a temperature difference estimator, and the luminance of an image displayed on a display is controlled depending on the temperature difference estimated value by a controller and a brightness controller.

3. 发明授权

US06400346B2 Display apparatus capable of adjusting subfield number according to brightness 有权
公开(公告)号：US06400346B2
公开(公告)日：2002-06-04
申请号：US09788532
申请日：2001-02-21
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G328
CPC分类号： G09G3/2803 , G09G3/2022 , G09G3/2033 , G09G3/2037 , G09G3/294 , G09G3/34 , G09G2320/0261 , G09G2320/0266 , G09G2320/0276 , G09G2320/041 , G09G2320/0626 , G09G2320/106 , G09G2330/021 , G09G2360/144 , G09G2360/16
摘要： A display apparatus adjusts the brightness of a plasma display panel. The display apparatus comprises an adjusting device, which acquires image brightness data, and adjusts the number of subfields Z on the basis of brightness data.

4. 再颁专利

USRE39742E1 Display device and luminance control method therefor 有权
公开(公告)号：USRE39742E1
公开(公告)日：2007-07-24
申请号：US10727330
申请日：2003-12-04
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G3/28
CPC分类号： G09G3/2944 , G09G2320/0271 , G09G2320/041 , G09G2320/0626 , G09G2330/045
摘要： A temperature difference estimated value is found from a video signal using a temperature estimated value representing the temperature of the panel outer periphery of a display screen of a PDP and a reference value representing the temperature of the panel outer periphery of the PDP which is outputted from a panel periphery temperature setter by a temperature difference estimator, and the luminance of an image displayed on a display is controlled depending on the temperature difference estimated value by a controller and a brightness controller.

5. 发明授权

US06492965B2 Display device and luminance control method therefor 有权
公开(公告)号：US06492965B2
公开(公告)日：2002-12-10
申请号：US09994775
申请日：2001-11-28
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G328
CPC分类号： G09G3/2944 , G09G2320/0271 , G09G2320/041 , G09G2320/0626 , G09G2330/045
摘要： A temperature difference estimated value is found from a video signal using a temperature estimated value representing the temperature of the panel outer periphery of a display screen of a PDP and a reference value representing the temperature of the panel outer periphery of the PDP which is outputted from a panel periphery temperature setter by a temperature difference estimator, and the luminance of an image displayed on a display is controlled depending on the temperature difference estimated value by a controller and a brightness controller.

6. 发明授权

US06462721B2 PDP display drive pulse controller for preventing light emission center fluctuation 失效
标题翻译： PDP显示驱动脉冲控制器，用于防止发光中心波动
公开(公告)号：US06462721B2
公开(公告)日：2002-10-08
申请号：US09915505
申请日：2001-07-27
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G328
CPC分类号： G09G3/2022 , G09G3/2803 , G09G3/2942 , G09G2320/0266
摘要： A drive pulse controller creates a driving signal for a display device that produces a gradation display. Each field of an input image signal is divided into a plurality of Z weighted subfields. The drive pulse controller determines a number of subfields Z for each field of the input image signal, changes the input image signal into a Z-bit brightness signal, specifies a number of sustain pulses for each subfield within a field, creates a driving signal for each field based on the Z-bit brightness signal and the number of sustain pulses, selects one of light emission time data stored in a time data source based on the determined Z, and calculates a delay time based on the selected light emission time data, such that the most-weighted subfields of consecutive fields having different numbers of subfields Z are positioned substantially at the same time.
摘要翻译：驱动脉冲控制器产生用于产生灰度显示的显示装置的驱动信号。输入图像信号的每个场被分成多个Z个加权子场。驱动脉冲控制器确定输入图像信号的每个场的子场数Z，将输入图像信号改变为Z位亮度信号，指定场内每个子场的维持脉冲数，创建驱动信号基于Z位亮度信号和维持脉冲数的每个场基于所确定的Z选择存储在时间数据源中的发光时间数据之一，并基于所选择的发光时间数据计算延迟时间，使得具有不同子场数Z的连续场的最重加权子场基本上位于同一时间。

7. 发明授权

US06965358B1 Apparatus and method for making a gray scale display with subframes 失效
标题翻译：用子画面进行灰度显示的装置和方法
公开(公告)号：US06965358B1
公开(公告)日：2005-11-15
申请号：US09623452
申请日：2000-01-18
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G3/20 , G09G3/28 , G09G3/34
CPC分类号： G09G3/2059 , G09G3/2022 , G09G3/2044 , G09G3/2077 , G09G3/288 , G09G2320/0261 , G09G2320/0266 , G09G2320/0276 , G09G2320/106
摘要： The invention provides an apparatus and a method applied to a plasma display panel or other display panel, achieving a gray scale display by using a plurality of weighted subfields. The apparatus comprises a gray scale limiting/difference diffusion circuit (17) for converting gray scale levels in a supplied image signal to specific gray scale levels that do not easily create pseudo contours in moving picture areas and to intermediate gray scale levels between the specific gray scale levels, and diffusing the difference between the converted gray scale level and the original gray scale level to adjacent pixels, and a dither circuit (19) for generating a video signal to display the converted gray scale level from the circuit (17) alternately in even and odd fields. The dither circuit (19) generates the video signal in which the gray scale levels offset the dither level above and below the dithered gray scale are alternately presented when the converted gray scale level is a dithered gray scale.
摘要翻译：本发明提供了一种应用于等离子体显示面板或其他显示面板的装置和方法，通过使用多个加权子场来实现灰度显示。该装置包括灰度限制/差分扩散电路（17），用于将所提供的图像信号中的灰度级转换为在运动图像区域中不容易产生伪轮廓的特定灰度级，以及特定灰度级之间的中间灰度级并且将转换的灰度级与原始灰度级之间的差扩散到相邻像素;以及抖动电路（19），用于产生视频信号以从电路（17）交替显示转换的灰度级，偶数和奇数场。抖动电路（19）产生视频信号，其中当转换的灰度级是抖动灰度时，交替呈现灰度等级偏移抖动灰度级上方和下方的抖动级别的视频信号。

8. 发明授权

US06812932B2 Detector for detecting pseudo-contour noise and display apparatus using the detector 失效
标题翻译：用于检测伪轮廓噪声的检测器和使用该检测器的显示装置
公开(公告)号：US06812932B2
公开(公告)日：2004-11-02
申请号：US09916285
申请日：2001-07-30
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G328
CPC分类号： G09G3/2059 , G09G3/2022 , G09G3/2033 , G09G3/2037 , G09G3/2055 , G09G3/288 , G09G2320/0261 , G09G2320/0266 , G09G2320/0276 , G09G2320/106 , G09G2360/16 , H04N5/145
摘要： A pseudo-contour noise detecting device for detecting pseudo-contour noise is provided. The pseudo-contour noise is embodied as contour lines appearing spuriously in a motion picture displayed such that a gradation display is performed by using a plurality of weighted subfields into which one field of an input image, including a plurality of pixels, is divided. The device includes a pseudo-contour noise calculating unit in which, a logic operation is performed, for each subfield, on each pixel of at least a portion of the input image using a value of the each pixel and values of at least one of the pixels surrounding the each pixel. Further, a value corresponding to an amount of pseudo-contour noise is calculated according to a number of subfields in which a difference is detected between the value of the each pixel and the values of the at least one of the pixels surrounding the each pixel.

9. 发明授权

US06690388B2 PDP display drive pulse controller 失效
标题翻译： PDP显示驱动脉冲控制器
公开(公告)号：US06690388B2
公开(公告)日：2004-02-10
申请号：US09908936
申请日：2001-07-20
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G520
CPC分类号： G09G3/2037 , G09G3/2022 , G09G3/2033 , G09G3/2059 , G09G3/2803 , G09G3/288 , G09G2320/0261 , G09G2320/0266 , G09G2320/0271 , G09G2320/0276 , G09G2320/041 , G09G2320/0626 , G09G2320/106 , G09G2360/144 , G09G2360/16
摘要： A display apparatus creates, for each image, a number of subfields Z from a first subfield to a Zth subfield in accordance with a Z bit representation of each pixel, a weighing value for each subfield, and a number of gradation display points. The display apparatus detects a peak image brightness level and an average image brightness level. A weighing multiple including a positive integer part and a fractional part is determined based on the peak image brightness level and the average image brightness level. The weighing multiple is multiplied by the weighing value of each subfield to obtain a product capable of having a positive integer part and a fractional part. An integer value near the product is defined as a number of drive pulses for each subfield. The weighing multiple is increased as the average image brightness level decreases and as the peak image brightness level increases.
摘要翻译：对于每个图像，显示装置根据每个像素的Z位表示，每个子场的称重值和灰度显示点的数量，从第一子场到第Z子场创建多个子场Z。显示装置检测峰值图像亮度水平和平均图像亮度水平。基于峰值图像亮度水平和平均图像亮度水平来确定包括正整数部分和小数部分的称重倍数。称重倍数乘以每个子场的称重值，以获得能够具有正整数部分和小数部分的乘积。乘积附近的整数值被定义为每个子场的驱动脉冲数。当平均图像亮度水平降低并且峰值图像亮度水平增加时，称量倍数增加。

10. 发明授权

US06388678B1 Plasma display panel drive pulse controller 有权
标题翻译：等离子显示屏驱动脉冲控制器
公开(公告)号：US06388678B1
公开(公告)日：2002-05-14
申请号：US09355339
申请日：1999-08-05
申请人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
发明人： Mitsuhiro Kasahara , Yuichi Ishikawa , Tomoko Morita
IPC分类号： G09G502
CPC分类号： G09G3/2037 , G09G3/2022 , G09G3/2033 , G09G3/2059 , G09G3/2803 , G09G3/288 , G09G2320/0261 , G09G2320/0266 , G09G2320/0271 , G09G2320/0276 , G09G2320/041 , G09G2320/0626 , G09G2320/106 , G09G2360/144 , G09G2360/16
摘要： A display apparatus has an adjusting device, which acquires image brightness data, and adjusts a weighting multiplier N on the basis of brightness data. The weighting multiplier N takes not only a positive integer, but also a decimal fraction numeral. In accordance with this, even if weighting multiplier N changes, an abrupt change in brightness does not occur, and a person watching the screen is not left with a sense of incongruousness.
摘要翻译：显示装置具有调整装置，其获取图像亮度数据，并且基于亮度数据来调整加权乘数N. 加权乘数N不仅包含正整数，还包括十进制数字。根据这一点，即使加权乘数N改变，也不会发生亮度的突然变化，并且观看屏幕的人不会有不协调的感觉。

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