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1. 发明授权

US07002541B2 Active matrix type display and a driving method thereof 有权
公开(公告)号：US07002541B2
公开(公告)日：2006-02-21
申请号：US09974297
申请日：2001-10-04
申请人： Toshihiro Yanagi , Kouji Kumada , Takashige Ohta , Katsuya Mizukata
发明人： Toshihiro Yanagi , Kouji Kumada , Takashige Ohta , Katsuya Mizukata
IPC分类号： G09G3/36
CPC分类号： G09G3/3655 , G09G3/3614 , G09G3/3648 , G09G3/3688 , G09G2320/0204 , G09G2320/0247 , G09G2330/021
摘要： In an active matrix type display device, a signal voltage is applied from a signal line driving circuit via an active element such as a TFT to display electrodes on a matrix substrate, and a common voltage is applied to a counter electrode on a facing substrate so that the common voltage is shared by respective display cells. A level of the common voltage is switched in every refresh period of a different length. Thus, it is possible to appropriately set a value of the common voltage which is a reference for specifying an effective voltage of positive polarity and an effective voltage of negative polarity according to the refresh periods. As a result, even when the refresh periods of a different length exist in a mixed manner, it is possible to equalize the effective voltage of positive polarity and the effective voltage of negative polarity so as to suppress an occurrence of a flicker.

2. 发明授权

US06784863B2 Active matrix liquid crystal display and method of driving the same 有权
标题翻译：有源矩阵液晶显示及其驱动方法
公开(公告)号：US06784863B2
公开(公告)日：2004-08-31
申请号：US09977912
申请日：2001-10-04
申请人： Toshihiro Yanagi , Kouji Kumada , Takashige Ohta , Katsuya Mizukata
发明人： Toshihiro Yanagi , Kouji Kumada , Takashige Ohta , Katsuya Mizukata
IPC分类号： G09G336
CPC分类号： G09G3/3648 , G09G3/3614 , G09G3/3655 , G09G2320/0223
摘要： An active matrix liquid crystal display drives liquid crystal by writing through TFTs, etc. a source signal from a signal line drive circuit to display electrodes in display cells on a matrix substrate and applying a common signal supplied from a common signal generator to common electrodes on an opposite substrate, the common signal changing in polarity in each frame. After scanning is completed for scan lines corresponding to one frame, a controller controls the interval between scan periods and the cycle of change in polarity of the common signal so as to provide a non-scan period that is longer than the scan period. The provision of the non-scan period extends the duration in which a specified voltage is retained by the display cell. This reduces the effects of variations in retained voltages caused by parasitic capacitance which develops in reflective electrode structures in which the display electrodes partly overlook scan lines and signal lines. Thus, in frame inversion drive, differences in brightness between the top and bottom of the display screen are reduced, and display quality is improved.
摘要翻译：有源矩阵液晶显示器通过TFT等写入来自信号线驱动电路的源极信号来驱动液晶，以在矩阵基板上的显示单元中显示电极，并将公共信号发生器提供的公共信号施加到公共电极上相对的基板，每个帧中的公共信号的极性变化。在对应于一帧的扫描线完成扫描之后，控制器控制扫描周期之间的间隔和公共信号的极性变化周期，以提供比扫描周期长的非扫描周期。提供非扫描周期延长了显示单元保持指定电压的持续时间。这减少了由显示电极部分地忽略扫描线和信号线的反射电极结构中产生的寄生电容引起的保持电压变化的影响。因此，在帧反转驱动中，显示屏幕的顶部和底部之间的亮度差异减小，并且显示质量得到改善。

3. 发明授权

US07474305B2 Data transfer method, image display device and signal line driving circuit, active-matrix substrate 有权
标题翻译：数据传输方式，图像显示装置和信号线驱动电路，有源矩阵基板
公开(公告)号：US07474305B2
公开(公告)日：2009-01-06
申请号：US11245663
申请日：2005-10-06
申请人： Hisashi Nagata , Noboru Noguchi , Katsuya Mizukata
发明人： Hisashi Nagata , Noboru Noguchi , Katsuya Mizukata
IPC分类号： G09G5/00
CPC分类号： G09G3/3688 , G09G3/3614 , G09G3/3648 , G09G2310/0248 , G09G2310/0297 , G09G2320/0209
摘要： Each signal line enters a preliminary polarity inversion period prior to a normal polarity inversion period so as to be inverted to the opposite polarity. By the preliminary polarity inversion a signal line on a border of blocks experiences a potential hike and the potential oscillates, which, however, is restored later by the application of a correct potential in the normal polarity inversion period. When transferring data per block, the problem of different potential states between the border of the blocks and an area surrounding it, which is caused by the potential oscillation of the signal line on the border of the blocks, is relieved.
摘要翻译：每个信号线在正常极性反转周期之前进入初步极性反转周期，以便反相到相反的极性。通过初步极性反转，块的边界上的信号线经历潜在的升高，并且电位振荡，然而，其在稍后通过在正常极性反转周期中施加正确的电位而被恢复。当每块传输数据时，缓冲块边界上的信号线的潜在振荡引起的块边界与其周围区域之间的不同电位状态的问题得到缓解。

4. 发明申请

US20080108309A1 DISPLAY DEVICE AND DISPLAY SYSTEM 有权
标题翻译：显示设备和显示系统
公开(公告)号：US20080108309A1
公开(公告)日：2008-05-08
申请号：US11964177
申请日：2007-12-26
申请人： Hidetaka Mizumaki , Katsuya Mizukata , Yasukuni Yamane
发明人： Hidetaka Mizumaki , Katsuya Mizukata , Yasukuni Yamane
IPC分类号： H04B7/00
CPC分类号： G09G5/005 , G06F3/14 , G09G5/006
摘要： The display system of the present invention includes: a body unit (1) for transmitting image data that has been generated; and a display device (2) for displaying an image in accordance with the image data that has been transmitted from the body unit (1), and said display system is characterized in that the body unit (1) and the display device (2) perform communications via radio communication means, and the body unit (1) and the display device (2) are separately providable. Thus, the radio transmission is used as communication means, and there is no cable, connecting the display device (2) and the body unit (1), that transfers the data signal, so that the device user can operate the system freely while watching the display device (2). As a result, it is possible to improve the workability of the user of the present display system. Further, since there is no wire connection section, using a connection clip, that is provided in a conventional display device, it is possible to simplify a mechanism for securing the strength of the wire connection section.
摘要翻译：本发明的显示系统包括：主体单元（1），用于发送已经生成的图像数据; 以及显示装置（2），用于根据从身体单元（1）发送的图像数据显示图像，并且所述显示系统的特征在于，身体单元（1）和显示装置（2）通过无线电通信装置执行通信，并且主体单元（1）和显示设备（2）可以单独提供。因此，无线电传输被用作通信装置，并且没有连接显示装置（2）和传送数据信号的主体单元（1）的电缆，使得设备用户可以在观看时自由地操作系统显示装置（2）。结果，可以提高本显示系统的用户的可操作性。此外，由于没有使用传统显示装置中提供的连接夹的导线连接部分，可以简化用于确保电线连接部分的强度的机构。

5. 发明授权

US07176875B2 Data transfer method, image display device and signal line driving circuit, active-matrix substrate 有权
标题翻译：数据传输方式，图像显示装置和信号线驱动电路，有源矩阵基板
公开(公告)号：US07176875B2
公开(公告)日：2007-02-13
申请号：US09803509
申请日：2001-03-09
申请人： Hisashi Nagata , Noboru Noguchi , Katsuya Mizukata
发明人： Hisashi Nagata , Noboru Noguchi , Katsuya Mizukata
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/3614 , G09G3/3648 , G09G2310/0248 , G09G2310/0297 , G09G2320/0209
摘要： Each signal line enters a preliminary polarity inversion period prior to a normal polarity inversion period so as to be inverted to the opposite polarity. By the preliminary polarity inversion a signal line on a border of blocks experiences a potential hike and the potential oscillates, which, however, is restored later by the application of a correct potential in the normal polarity inversion period. When transferring data per block, the problem of different potential states between the border of the blocks and an area surrounding it, which is caused by the potential oscillation of the signal line on the border of the blocks, is relieved.
摘要翻译：每个信号线在正常极性反转周期之前进入初步极性反转周期，以便反相到相反的极性。通过初步极性反转，块的边界上的信号线经历潜在的升高，并且电位振荡，然而，其在稍后通过在正常极性反转周期中施加正确的电位而被恢复。当每块传输数据时，缓冲块边界上的信号线的潜在振荡引起的块边界与其周围区域之间的不同电位状态的问题得到缓解。

6. 发明授权

US6020872A Matrix-type display device and method for driving the same 失效
标题翻译：矩阵型显示装置及其驱动方法
公开(公告)号：US6020872A
公开(公告)日：2000-02-01
申请号：US813490
申请日：1997-03-07
申请人： Katsuya Mizukata , Manabu Tanaka
发明人： Katsuya Mizukata , Manabu Tanaka
IPC分类号： G09G3/36 , G09G3/20 , G09G5/00 , H04N3/22 , H04N5/66
CPC分类号： G09G5/008 , H04N7/0122 , G09G2340/0421 , G09G2340/0442 , G09G2340/045 , G09G3/2011 , G09G3/3611
摘要： According to a driving method of a matrix-type display device of the present invention, a reference clock signal supplied by a reference clock oscillator is divided by a plurality of frequency dividing circuits, so that division clock signals are obtained. One among the division clock signals is selected by a switching operation by a switching circuit, and the selected division clock signal is outputted as a sampling clock signal to a row electrode driving circuit. Timings for the switching operation of the switching circuit are controlled by a switching control circuit in accordance with a horizontal synchronization signal and the reference clock signal. One or more of the frequency dividing circuits outputs a division clock signal having unequal clocks, when necessary. By thus arranging the division clock signals so that they have unequal clocks, it is allowed to set N of the division ratio 1/N to a value other than an integral number. Therefore, it is possible to set the division ratios close to each other, and hence, it is ensured that the reference clock signal has a lower frequency.
摘要翻译：根据本发明的矩阵型显示装置的驱动方法，由参考时钟振荡器提供的参考时钟信号由多个分频电路分压，从而获得分频时钟信号。通过开关电路的切换操作来选择分频时钟信号之一，并且将所选择的分频时钟信号作为采样时钟信号输出到行电极驱动电路。用于开关电路的开关操作的定时由根据水平同步信号和参考时钟信号的开关控制电路来控制。当需要时，一个或多个分频电路输出具有不等时钟的分频时钟信号。通过这样布置分频时钟信号使得它们具有不相等的时钟，允许将分频比1 / N的N设置为除整数之外的值。因此，可以将分频比设定为接近，从而确保基准时钟信号的频率更低。

7. 发明申请

US20060028420A1 Data transfer method, image display device and signal line driving circuit, active-matrix substrate 有权
公开(公告)号：US20060028420A1
公开(公告)日：2006-02-09
申请号：US11245663
申请日：2005-10-06
申请人： Hisashi Nagata , Noboru Noguchi , Katsuya Mizukata
发明人： Hisashi Nagata , Noboru Noguchi , Katsuya Mizukata
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/3614 , G09G3/3648 , G09G2310/0248 , G09G2310/0297 , G09G2320/0209
摘要： Each signal line enters a preliminary polarity inversion period prior to a normal polarity inversion period so as to be inverted to the opposite polarity. By the preliminary polarity inversion a signal line on a border of blocks experiences a potential hike and the potential oscillates, which, however, is restored later by the application of a correct potential in the normal polarity inversion period. When transferring data per block, the problem of different potential states between the border of the blocks and an area surrounding it, which is caused by the potential oscillation of the signal line on the border of the blocks, is relieved.

8. 发明授权

US6011534A Driving circuit for image display device including signal generator which generates at least two types of sampling pulse timing signals having phases that differ from each other 失效
标题翻译：用于图像显示装置的驱动电路包括信号发生器，其产生具有彼此不同的相位的至少两种采样脉冲定时信号
公开(公告)号：US6011534A
公开(公告)日：2000-01-04
申请号：US726363
申请日：1996-10-04
申请人： Manabu Tanaka , Katsuya Mizukata
发明人： Manabu Tanaka , Katsuya Mizukata
IPC分类号： G09G3/36 , G09G3/20 , G09G5/18 , H04N5/66
CPC分类号： G09G3/20 , G09G3/3648 , G09G5/18
摘要： A driving circuit for an image display device includes a signal generating circuit for generating an initiation control signal for controlling the initiation of sampling of a video signal to be input, and a sampling pulse timing signal for determining timing of sampling. When a set of discrete signals is input as the video signal, the signal generating circuit generates two sampling pulse timing signals whose phases differ from each other, selects one of the sampling pulse timing signals alternately in each horizontal scanning period, and outputs the selected sampling pulse timing signal to a shift register in a source driver. The signal generating circuit also switches the output signal between the two sampling pulse timing signals in a set of four fields.
摘要翻译：用于图像显示装置的驱动电路包括：信号产生电路，用于产生用于控制要输入的视频信号的采样开始的启动控制信号;以及采样脉冲定时信号，用于确定采样定时。当输入一组离散信号作为视频信号时，信号发生电路产生相位相互不同的两个采样脉冲定时信号，在每个水平扫描周期中交替选择一个采样脉冲定时信号，并输出所选择的采样脉冲定时信号发送到源驱动器中的移位寄存器。信号发生电路还在一组四个场中的两个采样脉冲定时信号之间切换输出信号。

9. 发明授权

US5598177A Driving apparatus and method for an active matrix type liquid crystal display apparatus 失效
标题翻译：一种有源矩阵型液晶显示装置的驱动装置和方法
公开(公告)号：US5598177A
公开(公告)日：1997-01-28
申请号：US361460
申请日：1994-12-21
申请人： Katsuya Mizukata , Takafumi Kawaguchi , Shiro Takeda , Makoto Takeda
发明人： Katsuya Mizukata , Takafumi Kawaguchi , Shiro Takeda , Makoto Takeda
IPC分类号： G02F1/133 , G09G3/36
CPC分类号： G09G3/3677 , G09G3/3648 , G09G2310/0251
摘要： A driving method of the invention is suitable for an active matrix type liquid crystal display apparatus having row and column electrodes. The driving method includes the steps of applying a gate-one pulse for writing data for one line to the column electrodes to each of the row electrodes. The gate-on pulse has a pulse waveform which includes at least one concave portion during a horizontal period.
摘要翻译：本发明的驱动方法适用于具有列和列电极的有源矩阵型液晶显示装置。该驱动方法包括以下步骤：施加用于将行一行的数据写入列电极的栅极 - 一脉冲到每行行电极。栅极导通脉冲具有在水平周期期间包括至少一个凹部的脉搏波形。

10. 发明授权

US5319706A Synchronizing circuit 失效
标题翻译：同步电路
公开(公告)号：US5319706A
公开(公告)日：1994-06-07
申请号：US753902
申请日：1991-09-03
申请人： Katsuya Mizukata , Takafumi Kawaguchi , Makoto Takeda , Hiroshi Take
发明人： Katsuya Mizukata , Takafumi Kawaguchi , Makoto Takeda , Hiroshi Take
IPC分类号： G11B20/02 , G11B20/12 , H04K1/00 , H04L7/08 , H04N5/10 , H04N5/913 , H04N5/93 , H04N5/06 , H04N7/093
CPC分类号： H04N5/10 , H04N5/913 , H04N2005/91314
摘要： When a specific signal (such as copy guard signal) is added between horizontal synchronizing signals in a composite synchronizing signal, and the addition period of the specific signal is defined in a specific period on the basis of the vertical synchronizing signal, the composite synchronizing signal is masked to remove the specific signal, thereby obtaining a masked composite synchronizing signal. Afterwards, from the masked composite synchronizing signal, the horizontal synchronizing signal and vertical synchronizing signal are obtained. In the case of composite synchronizing signal containing noise, without masking, the horizontal synchronizing signal and vertical synchronizing signal are directly obtained from the composite synchronizing signal. Therefore, when noise is not present, the horizontal synchronizing signal and vertical synchronizing signal may be obtained without disturbing the video image.
摘要翻译：当在复合同步信号中的水平同步信号之间添加特定信号（例如复制保护信号），并且基于垂直同步信号在特定周期内定义特定信号的相加周期时，复合同步信号被掩蔽以去除特定信号，从而获得掩蔽的复合同步信号。之后，从掩蔽的复合同步信号中获得水平同步信号和垂直同步信号。在包含噪声的复合同步信号的情况下，没有掩蔽，从复合同步信号直接获得水平同步信号和垂直同步信号。因此，当不存在噪声时，可以获得水平同步信号和垂直同步信号而不干扰视频图像。

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