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1. 发明授权

US5923320A Liquid-crystal display having the capability of a tablet 失效
标题翻译：具有片剂能力的液晶显示器
公开(公告)号：US5923320A
公开(公告)日：1999-07-13
申请号：US511613
申请日：1995-08-04
申请人： Hiroshi Murakami , Masafumi Itokazu , Ken-ichi Nakabayashi , Kazuhiro Takahara , Michiya Oura , Masami Oda
发明人： Hiroshi Murakami , Masafumi Itokazu , Ken-ichi Nakabayashi , Kazuhiro Takahara , Michiya Oura , Masami Oda
IPC分类号： G02F1/133 , G06F3/033 , G06F3/041 , G06F3/044 , G09G3/36 , G09G5/00
CPC分类号： G06F3/044
摘要： Disclosed is a liquid-crystal display having the capability of a tablet which offers high image quality and a high response speed. An active matrix type liquid-crystal display having the capability of a tablet comprises: an active matrix type liquid-crystal display composed of a device substrate having a plurality of scan electrodes, a plurality of data electrodes, a plurality of pixel electrodes, and a plurality of switching devices, and an opposed substrate holding a liquid crystal in cooperation with the device substrate; a voltage detector that when brought into contact with a display surface of the liquid-crystal display, detects pulses, which are applied consecutively to the scan electrodes and data electrodes, through electrostatic coupling between the detector and the scan electrodes or between the detector and the data electrodes and that outputs a detected signal; and a position detector for detecting a contact position of the detector on the basis of the detected signal. Herein, the device substrate is situated on the side of the observer of the display. The positions of data electrodes lying in the vicinity of a stylus are detected during a data electrode position detection period defined as a period during which no pulses are applied to scan electrodes. Positions of scan electrodes lying in the vicinity of the stylus are identified by detecting display scanning pulses that are applied consecutively to a plurality of scan electrodes in order to cause the switching devices to conduct consecutively during a display data writing period.
摘要翻译：公开了一种具有提供高图像质量和高响应速度的平板电脑的能力的液晶显示器。具有片剂能力的有源矩阵型液晶显示器包括：有源矩阵型液晶显示器，由具有多个扫描电极的器件基板，多个数据电极，多个像素电极和多个开关器件，以及与器件基板协作保持液晶的相对基板; 电压检测器，当与液晶显示器的显示表面接触时，通过检测器和扫描电极之间或检测器与扫描电极之间的静电耦合来检测连续施加到扫描电极和数据电极的脉冲数据电极，并输出检测信号; 以及位置检测器，用于基于检测到的信号检测检测器的接触位置。这里，器件基板位于显示器的观察者侧。位于触针附近的数据电极的位置在数据电极位置检测期间被检测，该数据电极位置检测周期被定义为扫描电极没有施加脉冲的周期。通过检测连续施加到多个扫描电极的显示扫描脉冲来识别位于触针附近的扫描电极的位置，以便在显示数据写入周期期间使开关器件连续导通。

2. 发明授权

US6040814A Active-matrix liquid crystal display and method of driving same 失效
标题翻译：有源矩阵液晶显示及其驱动方法
公开(公告)号：US6040814A
公开(公告)日：2000-03-21
申请号：US647685
申请日：1996-05-13
申请人： Hiroshi Murakami , Koji Yoshioka , Keizo Morita , Masafumi Itokazu , Ken-ichi Nakabayashi , Akira Yamamoto , Munehiro Haraguchi
发明人： Hiroshi Murakami , Koji Yoshioka , Keizo Morita , Masafumi Itokazu , Ken-ichi Nakabayashi , Akira Yamamoto , Munehiro Haraguchi
IPC分类号： G02F1/136 , G02F1/133 , G02F1/1368 , G09G3/20 , G09G3/36 , H01L29/786
CPC分类号： G09G3/3648 , G09G2310/0248 , G09G2310/0297 , G09G2320/0209 , G09G3/3614 , G09G3/3659 , G09G3/3688
摘要： An active-matrix LCD causes no cross-talk even if the capacitance between a given cell and adjacent data lines is large. The LCD has a liquid crystal panel which has data lines arranged in parallel with one another, scan lines arranged orthogonally to the data lines, and liquid crystal cells arranged at the intersections of the data and scan lines, respectively. Each of the cells has a cell electrode and a switching device that is arranged between and connected to the cell electrode and a corresponding one of the data lines. The conduction of the switching device is controlled in response to a scan pulse applied to a corresponding one of the scan lines. The LCD also has a data driver for applying data signals to the data lines, respectively, so that the data signals are written to corresponding ones of the cells, and a scan driver for applying the scan pulse sequentially to the scan lines. The data driver applies positive and negative signals that are opposite to each other with respect to a reference level, to each of the data lines within the period of the scan pulse, to zero an effective voltage applied to each data line. As a result, a voltage sustained by any cell to which data has been written is not affected by voltages successively applied to a data line to which the cell is connected and a data line to which the cell is capacitively connected.
摘要翻译：即使给定单元和相邻数据线之间的电容较大，有源矩阵LCD也不会引起串扰。 LCD具有液晶面板，其具有彼此平行布置的数据线，与数据线正交布置的扫描线和分别布置在数据和扫描线的交点处的液晶单元。每个单元具有单元电极和布置在单元电极之间并连接到单元电极和相应的一个数据线的开关器件。响应于施加到对应的一条扫描线的扫描脉冲来控制开关装置的导通。 LCD还具有用于将数据信号分别施加到数据线的数据驱动器，使得将数据信号写入相应的单元，以及用于将扫描脉冲顺序地应用于扫描线的扫描驱动器。数据驱动器将相对于基准电平彼此相反的正和负信号施加到扫描脉冲周期内的每个数据线，以将施加到每个数据线的有效电压归零。结果，已经写入数据的任何单元所持续的电压不受连续施加到单元连接的数据线的电压和单元电容连接的数据线的影响。

3. 发明授权

US06392629B1 Drive circuit for liquid-crystal displays and liquid-crystal display including drive circuits 失效
标题翻译：用于液晶显示器的驱动电路和包括驱动电路的液晶显示器
公开(公告)号：US06392629B1
公开(公告)日：2002-05-21
申请号：US09565916
申请日：2000-05-05
申请人： Hiroshi Murakami , Mitsuharu Nakazawa , Ken-ichi Nakabayashi
发明人： Hiroshi Murakami , Mitsuharu Nakazawa , Ken-ichi Nakabayashi
IPC分类号： G09G336
CPC分类号： G09G3/3688 , G09G3/2011 , G09G3/3666 , G09G2300/0408 , G09G2310/0218 , G09G2310/0259 , G09G2310/027 , G09G2310/0291 , G09G2320/0233 , G11C27/024
摘要： Disclosed is a liquid-crystal drive circuit having a simple configuration and being not susceptible to the characteristic of a device. The liquid-crystal drive circuit includes an auxiliary capacitor, applies a first voltage to a driving buffer, temporarily accumulates an output voltage of the driving buffer in the auxiliary capacitor, applies a voltage produced by subtracting the potential at the auxiliary capacitor from a second voltage to the driving buffer, and applies an output of the driving buffer onto a data bus.
摘要翻译：公开了一种液晶驱动电路，其结构简单，不易受器件特性的影响。液晶驱动电路包括辅助电容器，向驱动缓冲器施加第一电压，暂时将驱动缓冲器的输出电压累积在辅助电容器中，将从辅助电容器的电位减去的电压从第二电压施加到驱动缓冲器，并将驱动缓冲器的输出施加到数据总线上。

4. 发明授权

US06243066B1 Drive circuit for liquid-crystal displays and liquid-crystal display including drive circuits 失效
标题翻译：用于液晶显示器的驱动电路和包括驱动电路的液晶显示器
公开(公告)号：US06243066B1
公开(公告)日：2001-06-05
申请号：US09037544
申请日：1998-03-10
申请人： Hiroshi Murakami , Mitsuharu Nakazawa , Ken-ichi Nakabayashi
发明人： Hiroshi Murakami , Mitsuharu Nakazawa , Ken-ichi Nakabayashi
IPC分类号： G09G336
CPC分类号： G09G3/3688 , G09G3/2011 , G09G3/3666 , G09G2300/0408 , G09G2310/0218 , G09G2310/0259 , G09G2310/027 , G09G2310/0291 , G09G2320/0233 , G11C27/024
摘要： Disclosed is a liquid-crystal drive circuit having a simple configuration and being not susceptible to the characteristic of a device. The liquid-crystal drive circuit includes an auxiliary capacitor, applies a first voltage to a driving buffer, temporarily accumulates an output voltage of the driving buffer in the auxiliary capacitor, applies a voltage produced by subtracting the potential at the auxiliary capacitor from a second voltage to the driving buffer, and applies an output of the driving buffer onto a data bus.
摘要翻译：公开了一种液晶驱动电路，其结构简单，不易受器件特性的影响。液晶驱动电路包括辅助电容器，向驱动缓冲器施加第一电压，暂时将驱动缓冲器的输出电压累积在辅助电容器中，将从辅助电容器的电位减去的电压从第二电压施加到驱动缓冲器，并将驱动缓冲器的输出施加到数据总线上。

5. 发明授权

US06970274B2 Display device and driving method of the same 有权
标题翻译：显示装置及其驱动方法相同
公开(公告)号：US06970274B2
公开(公告)日：2005-11-29
申请号：US09774406
申请日：2001-01-31
申请人： Keizo Morita , Ken-ichi Nakabayashi
发明人： Keizo Morita , Ken-ichi Nakabayashi
IPC分类号： G01R31/02 , G02F1/133 , G09G3/20 , G09G3/36 , H04N1/04
CPC分类号： G09G3/3677 , G09G3/3648 , G09G3/3688 , G09G2300/0408 , G09G2310/0281 , G09G2310/0297 , G09G2330/08 , G09G2330/12 , G09G2352/00
摘要： A display device has a display section having scanning lines, and first and second scanning drivers having output lines for supplying scanning signals to the two ends of the scanning lines in the display section. When the potential of at least one of the output lines of the first or second scanning driver is fixed or unfixed due to an error in the first or second scanning driver, the output line at the fixed or unfixed potential is disconnected from the corresponding scanning line in the display section.
摘要翻译：显示装置具有显示部分，其具有扫描线，第一和第二扫描驱动器具有用于向显示部分中的扫描线的两端提供扫描信号的输出线。当第一或第二扫描驱动器的至少一条输出线的电位由于第一或第二扫描驱动器中的错误而固定或不固定时，固定或非固定电位的输出线与相应的扫描线断开在显示部分。

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