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121. 发明授权

US07973752B2 Display apparatus 有权
标题翻译：显示装置
公开(公告)号：US07973752B2
公开(公告)日：2011-07-05
申请号：US11790140
申请日：2007-04-24
申请人： Kiyoshi Nakagawa , Toshihiro Yanagi , Taketoshi Nakano
发明人： Kiyoshi Nakagawa , Toshihiro Yanagi , Taketoshi Nakano
IPC分类号： G09G3/36
CPC分类号： G03B21/56
摘要： The present invention is so arranged as to include (a) gradation reference potential generating means including a group of output terminals whose voltages are determined in accordance with a voltage division ratio of one ladder resistor, so as to output gradation reference potentials, for example, of 1024, which is a 16 multiple of a required 64-gradations; (b) output terminal designating means including a memory for designating, among from the output terminals, an output terminal for each of the 64-gradations required, in accordance with the display modes; and (c) selecting means for selecting an output terminal that corresponds to an input gradation signal, among from the output terminals designated by the output terminal designating section, and for applying a voltage via the thus selected output terminal to a display screen. With this arrangement, it is possible to attain very similar gradient signal-brightness characteristics for respective display modes with high accuracy, in order to prevent a gradient display from being changed due to switchover of the display modes.
摘要翻译：本发明被设置为包括（a）包括一组输出端子的灰度参考电位产生装置，该组输出端子的电压根据一个梯形电阻器的分压比确定，以输出灰度参考电位，例如，为1024，这是所需64级的16倍; （b）输出端子指定装置，包括存储器，用于根据显示模式从输出端子中指定所需的64个等级中的每一个的输出端子; 以及（c）从输出端子指定部分指定的输出端子中选择与输入灰度信号相对应的输出端子的选择装置，以及通过这样选择的输出端子将电压施加到显示屏幕。通过这种布置，为了防止由于显示模式的切换而改变梯度显示，可以高精度地获得各种显示模式的非常相似的梯度信号亮度特性。

122. 发明授权

US07782284B2 Video signal line drive circuit, and display device having the circuit 失效
标题翻译：视频信号线驱动电路和具有该电路的显示装置
公开(公告)号：US07782284B2
公开(公告)日：2010-08-24
申请号：US11632056
申请日：2005-07-11
申请人： Ken Inada , Takuya Tsuda , Toshihiro Yanagi
发明人： Ken Inada , Takuya Tsuda , Toshihiro Yanagi
IPC分类号： G09G3/36
CPC分类号： G09G3/3685 , G09G3/2059 , G09G2310/0218 , G09G2310/027 , H01L2924/12041
摘要： The present invention relates to a video signal line drive circuit of a display device.An object of the present invention is to, when gradation conversion is performed in the display device using an error diffusion method, provide a display with a smooth gradation change even at boundaries of display blocks.In an error diffusion operation circuit (36) of a source driver unit (302), an error diffusion process is performed for each pixel based on, in addition to image data (Da) for a display block of the source driver unit (302), image data (Da) for areas near boundaries between the display block of the source driver unit (302) and display blocks of source driver units (301, 303) in previous and subsequent stages. A video signal is generated based on error-diffused image data (Db) generated by the error diffusion process.
摘要翻译：本发明涉及一种显示装置的视频信号线驱动电路。本发明的目的在于，在使用误差扩散方法的显示装置中进行灰度转换时，即使在显示块的边界也提供平滑的灰度变化的显示。在源极驱动器单元（302）的误差扩散运算电路（36）中，除了源极驱动器单元（302）的显示块的图像数据（Da）之外，还对每个像素进行误差扩散处理，，用于在源驱动器单元（302）的显示块和前一级和后续级中的源驱动器单元（301,303）的显示块之间的边界附近的区域的图像数据（Da）。基于由误差扩散处理产生的误差扩散图像数据（Db）产生视频信号。

123. 发明申请

US20090267963A1 Liquid Crystal Display Device 有权
标题翻译：液晶显示装置
公开(公告)号：US20090267963A1
公开(公告)日：2009-10-29
申请号：US11887408
申请日：2006-03-24
申请人： Yuki Kawashima , Asahi Yamato , Kohzoh Takahashi , Kiyoshi Nakagawa , Toshihiro Yanagi
发明人： Yuki Kawashima , Asahi Yamato , Kohzoh Takahashi , Kiyoshi Nakagawa , Toshihiro Yanagi
IPC分类号： G09G3/36 , G09G5/10
CPC分类号： G09G3/3688 , G09G3/3648 , G09G3/3696 , G09G2320/0257 , G09G2320/0261 , G09G2320/0285
摘要： A control section (6) merely passes an incoming image data signal DAT onto a source driving section for display driving during the display of a still image. During the display of a moving image, the control section (6) converts, using a computing section (61) and a look-up table (5), a grayscale level signal in the incoming image data signal DAT to a grayscale level signal that is obtainable without using those application voltages at which the response speed of liquid crystal is slow. The control section (6) then outputs the resultant grayscale level signal to the source driving section for display driving.
摘要翻译：控制部分（6）在静止图像的显示期间仅将输入图像数据信号DAT传递到用于显示驱动的源极驱动部分。在运动图像的显示期间，控制部分（6）使用计算部分（61）和查找表（5）将输入图像数据信号DAT中的灰度等级信号转换成灰度级信号，可以在不使用液晶的响应速度慢的施加电压的情况下获得。然后，控制部分（6）将所得到的灰度级信号输出到用于显示驱动的源驱动部分。

124. 发明申请

US20090244102A1 LCD, LIQUID CRYSTAL DISPLAY DEVICE, AND THEIR DRIVE METHOD 审中-公开
标题翻译： LCD，液晶显示装置及其驱动方法
公开(公告)号：US20090244102A1
公开(公告)日：2009-10-01
申请号：US11990858
申请日：2006-08-29
申请人： Kiyoshi Nakagawa , Toshihiro Yanagi , Asahi Yamato , Yuki Kawashima , Kozo Takahashi
发明人： Kiyoshi Nakagawa , Toshihiro Yanagi , Asahi Yamato , Yuki Kawashima , Kozo Takahashi
IPC分类号： G06F3/038 , G09G5/10 , G09G3/36
CPC分类号： G09G3/3648 , G09G2320/0252 , G09G2320/0285 , G09G2340/16
摘要： In one embodiment of the present invention, the liquid crystal display device of the invention performs an overshoot drive, including: an LCD having a liquid crystal panel for displaying video image; a frame memory installed outside of the LCD; and lookup table, the table with which third gray scale data most suitable for performing the overshoot drive to the LCD can be computed based on first gray scale data of a first frame and second gray scale data of a second frame, where the second frame is a frame right before the first frame and is stored in the frame memory in advance, wherein lookup table data is stored for each response speed characteristic of the LCD. Thus, without rewriting of lookup table data, the liquid crystal display device having the lookup table most suitable for performing the overshoot drive is realized while high display quality is maintained therein.
摘要翻译：在本发明的一个实施例中，本发明的液晶显示装置执行过冲驱动，包括：具有用于显示视频图像的液晶面板的LCD; 安装在LCD外部的帧存储器; 和查找表，可以基于第一帧的第一灰度数据和第二帧的第二灰度数据来计算最适合于执行到LCD的过冲驱动的第三灰度数据的表，其中第二帧是预先在第一帧之前的帧并预先存储在帧存储器中，其中针对LCD的每个响应速度特性存储查找表数据。因此，在不重写查找表数据的情况下，实现具有最适合执行过冲驱动的查找表的液晶显示装置，同时保持高显示质量。

125. 发明申请

US20090135123A1 Method for Driving Liquid Crystal Display Apparatus 有权
标题翻译：驱动液晶显示装置的方法
公开(公告)号：US20090135123A1
公开(公告)日：2009-05-28
申请号：US11887220
申请日：2006-02-07
申请人： Asahi Yamato , Yuki Kawashima , Kiyoshi Nakagawa , Kohzoh Takahashi , Toshihiro Yanagi
发明人： Asahi Yamato , Yuki Kawashima , Kiyoshi Nakagawa , Kohzoh Takahashi , Toshihiro Yanagi
IPC分类号： G09G3/36
CPC分类号： G09G3/3607 , G09G3/2007 , G09G3/3696 , G09G2320/0252 , G09G2320/0285 , G09G2320/103 , G09G2330/021 , G09G2330/028 , G09G2340/16
摘要： In one embodiment of the present invention, when a still image is displayed, applied voltages respectively corresponding to a total of n (n being an integer of not less than 4) types of gradation 0 to (n−1) are outputted to pixels. When a moving image is displayed, an applied voltage corresponding to a predetermined gradation m (1≦m≦(n−2)) is applied to the pixels instead of applied voltages respectively corresponding to gradations of less than the predetermined gradation m. Overdrive driving is performed with respect to a total of n types of gradation.
摘要翻译：在本发明的一个实施例中，当显示静止图像时，分别对应于n（n是不小于4的整数）的灰度级0至（n-1）的总和的施加电压被输出到像素。当显示运动图像时，将对应于预定灰度m（1 <= m <=（n-2））的施加电压施加到像素，而不是分别对应于小于预定灰度m的灰度的施加电压。相对于n种灰度的总和来执行过驱动。

126. 发明授权

US07295178B2 Display apparatus and display method 有权
标题翻译：显示装置和显示方法
公开(公告)号：US07295178B2
公开(公告)日：2007-11-13
申请号：US10617386
申请日：2003-07-11
申请人： Taketoshi Nakano , Toshihiro Yanagi , Takafumi Kawaguchi
发明人： Taketoshi Nakano , Toshihiro Yanagi , Takafumi Kawaguchi
IPC分类号： G09G3/36
CPC分类号： G09G3/3666 , G09G3/367 , G09G2310/04 , G09G2320/043 , G09G2330/021
摘要： A display apparatus of the present invention is provided with (i) a second memory for storing therein data of one frame for a whole display area of a display section, (ii) a first memory, provided in addition of the second memory, for storing therein data of one frame for a partial display area, (iii) a control section for causing the data respectively read out from the memories, to be respectively written in the display areas to which the data correspond to, and casing the partial display area to move to an predetermined position within a display screen of the display section, when a predetermined time lapses. The display apparatus has an improved display quality by moving the partial display area without affecting an image displayed in an area other than the partial display area.
摘要翻译：本发明的显示装置设置有：（i）第二存储器，用于存储显示部分的整个显示区域的一帧的数据;（ii）除第二存储器之外还提供的第一存储器，用于存储其中用于部分显示区域的一帧的数据，（iii）用于将从存储器分别读出的数据分别写入与数据对应的显示区域中的控制部分，并将部分显示区域包围到当预定时间过去时，移动到显示部分的显示屏幕内的预定位置。显示装置通过移动部分显示区域而不影响在部分显示区域以外的区域中显示的图像，具有改善的显示质量。

127. 发明授权

US07212185B2 Display device and driving method thereof 有权
标题翻译：显示装置及其驱动方法
公开(公告)号：US07212185B2
公开(公告)日：2007-05-01
申请号：US10621364
申请日：2003-07-18
申请人： Toshihiro Yanagi , Taketoshi Nakano , Asahi Yamato
发明人： Toshihiro Yanagi , Taketoshi Nakano , Asahi Yamato
IPC分类号： G09G3/36 , G09G5/00
CPC分类号： G09G3/3648 , G06F1/3218 , G06F1/3265 , G09G3/20 , G09G5/18 , G09G2330/021 , Y02D10/153 , Y02D50/20
摘要： A display device includes an inaction control circuit and a DCK-PLL circuit. The inaction control circuit stops driving of driving circuits, such as a signal line driving circuit, a scanning line driving circuit, analog circuit and the like, which are provided for driving an active matrix panel. The inaction control circuit stops the control circuits in a non-refresh period where all scanning lines become non-scanning state and provided between refresh periods for scanning a screen of the active matrix panel. The inaction control circuit also stops driving of the DCK-PLL circuit in the non-refresh period, in addition to stopping driving of the driving circuits.
摘要翻译：显示装置包括不动作控制电路和DCK-PLL电路。不动作控制电路停止用于驱动有源矩阵面板的驱动电路的驱动，例如信号线驱动电路，扫描线驱动电路，模拟电路等。无效控制电路在所有扫描线变为非扫描状态的非刷新期间停止控制电路，并且在用于扫描有源矩阵面板的屏幕的刷新周期之间提供控制电路。除了停止驱动电路的驱动之外，不动作控制电路还在非刷新期间停止DCK-PLL电路的驱动。

128. 发明授权

US07176869B2 Drive circuit for use in liquid crystal display, liquid crystal display incorporating the same, and electronics incorporating the liquid crystal display 有权
标题翻译：用于液晶显示器的驱动电路，并入液晶显示器的液晶显示器以及结合了液晶显示器的电子装置
公开(公告)号：US07176869B2
公开(公告)日：2007-02-13
申请号：US09898185
申请日：2001-07-03
申请人： Kouji Kumada , Toshihiro Yanagi , Takashige Ohta
发明人： Kouji Kumada , Toshihiro Yanagi , Takashige Ohta
IPC分类号： G09G3/36
CPC分类号： G09G3/3655 , G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2320/0204 , G09G2320/0257
摘要： A drive circuit for use in a liquid crystal display supplies source signals from a source driver to pixel electrodes through switching by means of TFTs according to scan signals from a gate driver, includes a reference voltage generator circuit for adjusting potential differences between the pixel electrodes and a common electrode so as to compensate for the effects of variations in drain voltages caused by parasitic capacity in the TFTs and compensate for irregularities in DC voltage caused by asymmetry in properties between an active matrix substrate and an opposite substrate sandwiching a liquid crystal layer. The reference voltage generator circuit is composed of a reference voltage generator circuit for shifting the voltage levels of the source signals supplied by the source driver equally for all the pixel electrodes. Thus, the drive circuit for use in a liquid crystal display is applicable to portable electronics operative without necessarily performing periodical D/A conversions and includes the reference voltage generator circuit running on a reduced power supply.
摘要翻译：用于液晶显示器的驱动电路通过根据来自栅极驱动器的扫描信号的TFT通过TFT的切换来提供源极驱动器到像素电极的源极信号，该参考电压发生器电路用于调整像素电极和公共电极，以补偿由TFT中的寄生电容引起的漏极电压变化的影响，并且补偿由有源矩阵基板和夹持液晶层的相对基板之间的性质的不对称性引起的直流电压的不规则性。参考电压发生器电路由参考电压发生器电路组成，用于将源极驱动器提供的源极信号的电压电平相等于所有像素电极。因此，用于液晶显示器的驱动电路可应用于便携式电子设备，而不需要执行周期性的D / A转换，并且包括在减小的电源上运行的参考电压发生器电路。

129. 发明授权

US06867760B2 Display device and display method 有权
标题翻译：显示设备和显示方式
公开(公告)号：US06867760B2
公开(公告)日：2005-03-15
申请号：US10037804
申请日：2001-12-26
申请人： Toshihiro Yanagi , Hideki Morii , Hidekazu Miyata
发明人： Toshihiro Yanagi , Hideki Morii , Hidekazu Miyata
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36
CPC分类号： G09G3/3677 , G09G3/3648 , G09G3/3696 , G09G2310/066 , G09G2320/0204 , G09G2320/0219 , G09G2320/0223 , G09G2320/0247
摘要： In the display device and the display method of the present invention, a scanning signal line driving circuit controls falls of a scanning signal line, so as to make level shifts occurring to pixel potentials substantially uniform throughout display plane, the level shifts being caused by parasitic capacitances which parasitically exist in scanning signal lines. Fall waveforms of the scanning signal change at a change rate Sx which is a change quantity per unit time, and by desirably setting the change rate Sx, a change rate Sx1 in the vicinity of an input-side end of the scanning signal line and a change rate SxN in the vicinity of the other end thereof are substantially equal to each other, not being influenced by signal delay transmission characteristic which the scanning signal line possesses, like scanning signal line waveforms Vg(1, j) and Vg(N, j).
摘要翻译：在本发明的显示装置和显示方法中，扫描信号线驱动电路控制扫描信号线的下降，使得在显示面上使像素电位发生大致均匀的电平偏移，电平偏移由寄生寄生在扫描信号线上的电容。扫描信号的下降波形以每单位时间的变化量的变化率Sx变化，并且希望将变化率Sx设定为扫描信号线的输入侧端部附近的变化率Sx1，像扫描信号线波形Vg（1，j）和Vg（N，j）一样，其另一端附近的变化率SxN基本相等，不受扫描信号线所具有的信号延迟传输特性的影响）。

130. 发明授权

US06741229B1 Display device and method for driving the same 有权
标题翻译：显示装置及其驱动方法
公开(公告)号：US06741229B1
公开(公告)日：2004-05-25
申请号：US09611382
申请日：2000-07-07
申请人： Toshihiro Yanagi , Takafumi Kawaguchi
发明人： Toshihiro Yanagi , Takafumi Kawaguchi
IPC分类号： G09G336
CPC分类号： G09G3/3648 , G09G3/3611 , G09G2320/0261 , G09G2320/10 , G09G2340/0435 , G09G2360/18
摘要： A device for displaying a video signal which is supplied to the device along with a vertical synchronizing signal, includes a plurality of pixels arranged in a matrix, a switching element connected to each of the plurality of pixels, and a driving circuit for writing the video signal into each of the plurality of pixels via the switching element. The driving circuit writes the video signal to each of the plurality of pixels with a cycle TW1 shorter than one cycle of the vertical synchronizing signal.
摘要翻译：用于显示与垂直同步信号一起提供给设备的视频信号的装置包括以矩阵形式布置的多个像素，连接到多个像素中的每一个的开关元件以及用于写入视频的驱动电路经由开关元件将信号输入到多个像素中的每一个。驱动电路以比垂直同步信号的一个周期短的周期TW1将视频信号写入多个像素中的每一个。

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