公开(公告)号：US6151006A

公开(公告)日：2000-11-21

申请号：US506211

申请日：1995-07-24

申请人： Toshihiro Yanagi ,  Takafumi Kawaguchi ,  Makoto Takeda

发明人： Toshihiro Yanagi ,  Takafumi Kawaguchi ,  Makoto Takeda

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  H04N5/66

CPC分类号： G09G3/3688 ,  G09G2310/027 ,  G09G2320/0204 ,  G09G2330/021 ,  G09G3/2014 ,  G09G3/3614

摘要： An active matrix type display device according to the present invention includes: a display panel including a plurality of pixels arranged in a matrix shape, scanning lines connected to the plurality of pixels, and signal lines connected to the plurality of pixels; and a signal line driving circuit for receiving an analog video signal and driving each signal line with a signal line driving signal corresponding to a signal level of the analog video signal. The signal line driving circuit generates a pulse signal having a duty ratio corresponding to the signal level of the analog video signal and outputs the pulse signal.

摘要翻译： 根据本发明的有源矩阵型显示装置包括：显示面板，包括以矩阵形状排列的多个像素，连接到所述多个像素的扫描线以及连接到所述多个像素的信号线; 以及信号线驱动电路，用于接收模拟视频信号并用对应于模拟视频信号的信号电平的信号线驱动信号驱动每个信号线。 信号线驱动电路产生具有与模拟视频信号的信号电平对应的占空比的脉冲信号，并输出脉冲信号。

公开(公告)号：US5745087A

公开(公告)日：1998-04-28

申请号：US432530

申请日：1995-05-01

申请人： Akira Tomiyoshi ,  Takafumi Kawaguchi

发明人： Akira Tomiyoshi ,  Takafumi Kawaguchi

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3648 ,  G09G2320/0204 ,  G09G2320/0219 ,  G09G3/2014 ,  G09G3/2018

摘要： A gray scale signal duty ratio conversion section employs D flip-flops and AND gates so as to generate detection pulses for rises and falls of the gray scale signal T based on the gray scale signal T input from the control circuit and the clock signal CKT. Among the rise-detection pulses and fall-detection pulses, only the fall-detection pulses are delayed by the D flip-flop by one clock, and the delayed fall-detection pulses and the rise-detection pulses are input to an RS flip-flop so that the altered gray scale signal T' is obtained as an output of the RS flip-flop. The altered gray scale signal T' thus obtained is a signal whose HIGH period is longer than the input gray scale T by one clock. Thus, it is possible to compensate for the phenomenon associated with a TFT liquid crystal display device driven by the gray-scale driving method where a voltage applied to a liquid crystal capacitance may vary with the turning off of the TFT is from the voltage it was charged with. As a result, the liquid crystal material is prevented from being deteriorated, whereby the display quality and the reliability of the liquid crystal display device are improved.

摘要翻译： 灰度信号占空比转换部分根据从控制电路和时钟信号CKT输入的灰度信号T，使用D个触发器和“与”门，以产生灰度信号T的上升和下降检测脉冲。 在上升检测脉冲和下降检测脉冲中，只有下降检测脉冲被D触发器延迟一个时钟，并且延迟的下降检测脉冲和上升检测脉冲被输入到RS触发器， 使得改变的灰度信号T'作为RS触发器的输出获得。 如此获得的改变的灰度信号T'是其HIGH周期比输入灰度T长一个时钟的信号。 因此，可以补偿与由灰度驱动方法驱动的TFT液晶显示装置相关联的现象，其中施加到液晶电容的电压可能随着TFT的截止而变化， 被控。 结果，防止液晶材料劣化，从而提高了液晶显示装置的显示质量和可靠性。

公开(公告)号：US5349226A

公开(公告)日：1994-09-20

申请号：US813268

申请日：1991-12-24

申请人： Takafumi Kawaguchi ,  Shiro Takeda

发明人： Takafumi Kawaguchi ,  Shiro Takeda

IPC分类号： G02F1/133 ,  G02F1/13 ,  G02F1/1345 ,  G02F1/136 ,  G02F1/1362 ,  G02F1/1368

CPC分类号： G02F1/1309 ,  G02F1/1362

摘要： In an active matrix substrate including an array of thin film transistors arranged in a matrix, source buses and gate buses formed on an insulating substrate, a contact pad is formed on the source buses and the gate buses so that a metal portion of these buses is exposed, in order to provide an access for probing to monitor the waveform of signals.

摘要翻译： 在包括矩阵排列的薄膜晶体管阵列，形成在绝缘基板上的源极总线和栅极总线的有源矩阵基板中，在源极总线和栅极总线上形成接触焊盘，使得这些母线的金属部分 暴露，以便提供探测以监视信号波形的访问。

公开(公告)号：US07369124B2

公开(公告)日：2008-05-06

申请号：US10786609

申请日：2004-02-26

申请人： Taketoshi Nakano ,  Ken Inada ,  Takafumi Kawaguchi

发明人： Taketoshi Nakano ,  Ken Inada ,  Takafumi Kawaguchi

IPC分类号： G09G5/00

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G2310/0297 ,  G09G2320/0209 ,  G09G2320/0233 ,  G09G2330/021

摘要： A liquid crystal panel (500) is provided with a connection switching circuit (502) for connecting a video signal line driving circuit (300) to a plurality of video signal lines (Ls). The connection switching circuit (502) includes analog switches (SWi) that correspond to the video signal lines (Ls) and one side of each of the analog switches (SWi) is connected to one of the video signal lines (Ls). The video signal lines (Ls) are grouped together into groups of two video signal lines (Ls) that are spaced apart by one video signal line. The groups of video signal lines (Ls) respectively correspond to output terminals (TSj) of the video signal line driving circuit (300). The other sides of the analog switches (SWi) connected to the video signal lines (Ls) of the same group are connected to one another, and connected to one output terminal (TSj). Based on a switching control signal GS, the analog switches (SWi) connect each of the output terminals (TSj) in each horizontal scanning period by time division to the two video signal lines (Ls) of the corresponding group.

摘要翻译： 液晶面板（500）具有用于将视频信号线驱动电路（300）连接到多个视频信号线（Ls）的连接切换电路（502）。 连接切换电路（502）包括与视频信号线（Ls）对应的模拟开关（SW＆lt; i＆gt;）和模拟开关（SW＆lt; i＆gt; ）连接到视频信号线（Ls）之一。 视频信号线（Ls）被分组为由一条视频信号线隔开的两条视频信号线（Ls）的组。 视频信号线组（Ls）分别对应于视频信号线驱动电路（300）的输出端（TS SUB）。 连接到相同组的视频信号线（Ls）的模拟开关（SW）的另一侧彼此连接，并连接到一个输出端子（TS < / SUB>）。 基于开关控制信号GS，模拟开关（SW＆lt; i＆gt;）将每个水平扫描周期中的每个输出端子（TS SUB）连接到两个 视频信号线（Ls）。

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。

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。

公开(公告)号：US5614922A

公开(公告)日：1997-03-25

申请号：US414717

申请日：1995-03-31

申请人： Takafumi Kawaguchi ,  Akira Tomiyoshi ,  Makoto Takeda

发明人： Takafumi Kawaguchi ,  Akira Tomiyoshi ,  Makoto Takeda

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36

CPC分类号： G09G3/2011 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2330/021 ,  G09G3/2018

摘要： The active matrix type display apparatus of this invention includes a display medium made of an electro-optical material; a pair of substrates opposing each other with the display medium interposed therebetween; a plurality of pixel electrodes formed in a matrix on one of the substrates; a plurality of row electrodes; a plurality of column electrodes; switching devices each of which is disposed so as to correspond to each of the pixel electrodes, connects the corresponding pixel electrode to the column electrode corresponding to the pixel electrode, and is connected to the row electrode corresponding to the pixel electrode through a control terminal thereof; a row electrode driving circuit for applying a voltage to each of the row electrodes so that the corresponding switching device become conductive only in a row electrode scanning term during a horizontal scanning term assigned to each of the row electrodes; a column electrode driving circuit for alternately applying two kinds of voltages to each of the column electrodes repeatedly at a duty ratio in accordance with a display data corresponding to each of the column electrodes; and voltage switching inhibition element for inhibiting switching of the voltages to be applied to each of the column electrodes by the column electrode driving circuit at least in part of a horizontal scanning term that is not assigned as the row electrode scanning term of any of the row electrodes.

摘要翻译： 本发明的有源矩阵型显示装置包括由电光材料制成的显示介质; 一对基板彼此相对，介于其间的显示介质; 在一个基板上以矩阵形成的多个像素电极; 多个行电极; 多个列电极; 将与各像素电极对应配置的开关元件，将对应的像素电极与对应于像素电极的列电极相连接，并通过控制端子连接到与像素电极对应的行电极 ; 行电极驱动电路，用于向每个行电极施加电压，使得相应的开关器件在分配给每个行电极的水平扫描期间仅在行电极扫描期间变为导通; 列电极驱动电路，用于根据对应于每个列电极的显示数据以占空比重复地向每个列电极施加两种电压; 以及电压切换禁止元件，用于通过列电极驱动电路抑制对列电极施加的电压的切换，至少部分水平扫描项不被分配为行中的任一行的行电极扫描项 电极。

公开(公告)号：US5253093A

公开(公告)日：1993-10-12

申请号：US783890

申请日：1991-10-29

申请人： Shiro Takeda ,  Takafumi Kawaguchi ,  Makoto Takeda

发明人： Shiro Takeda ,  Takafumi Kawaguchi ,  Makoto Takeda

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  G02F1/13 ,  G09G1/10

CPC分类号： G09G3/3677 ,  G09G2310/0283

摘要： An improved row electrode driving circuit can drive a matrix type display apparatus without necessitating digital signals transmitted between partial row electrode driving circuits. Each of the partial row electrode driving circuits is allocated with a number. In each of the partial row electrode driving circuits, shift register shifts a pulse signal to sequentially output it from a plurality of outputs. At each time when a predetermined number of clock pulses have been counted, a count signal is produced. When the shift direction is set to the upper direction, a signal indicating the allocated number is produced. When the shift direction is set to the lower direction, a signal indicating a number which is obtained by subtracting the allocated number from a specified number is produced. When this number and the clock pulse count number satisfy a predetermined relationship, the pulse signal is output.

公开(公告)号：US5166670A

公开(公告)日：1992-11-24

申请号：US634591

申请日：1990-12-27

申请人： Shiro Takeda ,  Takafumi Kawaguchi ,  Makoto Takeda

发明人： Shiro Takeda ,  Takafumi Kawaguchi ,  Makoto Takeda

IPC分类号： G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3688 ,  G09G2310/0283

摘要： An improved column electrode driving circuit can drive a matrix type display apparatus without necessitating that digital signals be transmitted between partial column electrode driving circuits. Each of the partial column electrode driving circuits is allocated with a number. In each of the partial column electrode driving circuits, a shift register shifts a sample signal to sequentially output it from a plurality of outputs. At each time when a predetermined number of clock pulses have been counted, a count signal is produced. When the shift direction is set to the right direction, a signal indicating the allocated number is produced. When the shift direction is set to the left direction, a signal indicating a number, which is obtained by subtracting the allocated number from a specified number, is produced. When this number and the clock pulse count number satisfy a predetermined relationship, the sample signal is output.

公开(公告)号：US08134675B2

公开(公告)日：2012-03-13

申请号：US11915435

申请日：2006-05-01

申请人： Takafumi Kawaguchi ,  Takahiro Yamamoto

发明人： Takafumi Kawaguchi ,  Takahiro Yamamoto

IPC分类号： G02F1/1345 ,  G02F1/1333 ,  G02F1/1335

CPC分类号： G02F1/133308 ,  G02F1/133608 ,  G02F2001/133317

摘要： A liquid crystal display device includes at least: a liquid crystal display panel; a light source provided on a back side of the liquid crystal display panel; and a frame accommodating the liquid crystal display panel and the light source and having an upper opening and a lower opening in an upper portion and a lower portion of the frame, respectively. The liquid crystal display panel includes a TFT substrate provided on a side of the light source, a CF substrate, a liquid crystal layer interposed between the TFT substrate and the CF substrate, a thin film driving circuit formed on the TFT substrate for driving the liquid crystal layer, and a front polarizing plate provided on a front surface of the CF substrate and having an overhanging portion overhanging from a periphery of the CF substrate. The front polarizing plate covers the upper opening of the frame and the overhanging portion is fixed to an upper end surface of the frame.

摘要翻译： 液晶显示装置至少包括：液晶显示面板; 设置在所述液晶显示面板的背面的光源; 以及容纳液晶显示面板和光源并且在框架的上部和下部分别具有上部开口和下部开口的框架。 液晶显示面板包括设置在光源侧的TFT基板，CF基板，介于TFT基板和CF基板之间的液晶层，形成在TFT基板上的用于驱动液体的薄膜驱动电路 以及设置在CF基板的前表面上并具有从CF基板的周边突出的突出部分的前偏振片。 前偏光板覆盖框架的上开口，伸出部固定在框架的上端面上。