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公开(公告)号：US5583531A
公开(公告)日：1996-12-10
申请号：US295038
申请日：1994-08-25
申请人： Hisao Okada , Takeshi Takarada , Tadatsugu Nisitani , Toshihiro Yanagi , Hirofumi Fukuoka , Yoshiharu Kanatani , Kuniaki Tanaka
发明人： Hisao Okada , Takeshi Takarada , Tadatsugu Nisitani , Toshihiro Yanagi , Hirofumi Fukuoka , Yoshiharu Kanatani , Kuniaki Tanaka
CPC分类号： G09G3/2011 , G09G3/3648 , G09G3/3688 , G09G2310/027 , G09G2320/0223 , G09G3/2014
摘要： A method of driving a display apparatus includes the steps of receiving output requests at a interval and outputting an oscillating voltage to a source line connected to display section, the oscillating voltage including a component which oscillates during one output period of time defined by the output requests.
摘要翻译： 一种驱动显示装置的方法包括以下步骤：以一定间隔接收输出请求，并将振荡电压输出到连接到显示部分的源极线，振荡电压包括在由输出请求定义的一个输出周期期间振荡的分量 。
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公开(公告)号：US5414443A
公开(公告)日：1995-05-09
申请号：US944025
申请日：1992-09-11
CPC分类号： H04N3/127 , G09G3/2011 , G09G3/3614 , G09G3/3648 , G09G3/3659 , G09G3/3677 , G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2310/0283 , G09G2310/0289 , G09G2320/0247
摘要： A drive device for driving a matrix-type LCD apparatus comprises a voltage signal supply means for outputting a plurality of voltage signals with different levels. The voltage signals have alternately positive and negative levels with respect to an AC reference voltage applied to a counter-electrode of the LCD apparatus. The AC reference voltage is approximately 180.degree. out-of-phase with the voltage signals. The drive device also comprises a signal electrode drive means which selects one of the voltage signals depending upon an input digital video signal, and which supplies the selected voltage signal to a signal electrode of the LCD apparatus.
摘要翻译： 用于驱动矩阵式LCD装置的驱动装置包括用于输出具有不同电平的多个电压信号的电压信号提供装置。 电压信号相对于施加到LCD装置的对电极的AC参考电压具有交替的正电平和负电平。 交流参考电压与电压信号相差180度左右。 驱动装置还包括信号电极驱动装置，该信号电极驱动装置根据输入的数字视频信号选择电压信号中的一个，并将所选择的电压信号提供给LCD装置的信号电极。
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公开(公告)号：US5111195A
公开(公告)日：1992-05-05
申请号：US470623
申请日：1990-01-26
CPC分类号： G09G3/3688 , G09G2310/0248 , G09G2330/021 , G09G3/2011
摘要： A driving circuit for a matrix type display device in which a plurality of picture elements are arranged in a matrix is disclosed. The driving circuit comprises a video signal output circuit for supplying video signals through output portions to the display device at each horizontal scan. The video signal output circuit comprises for each of the output portions: a comparison circuit for comparing the level of a video signal to be output, with the level of the output portion which is caused by the video signal output at the previous horizontal scan; and an output level control circuit for, when the level of said video signal to be output is higher than the level of the output portion, raising the level of said output portion to the level substantially identical with the level of the video signal to be output, and, when the level of said video signal to be otuput is lower than the level of the output portion, lowering the level of said output portion to the level substantially identical with the level of the video signal to be output.
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公开(公告)号：US5412397A
公开(公告)日：1995-05-02
申请号：US177202
申请日：1994-01-03
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/3648 , G09G2310/0224 , G09G2310/0297
摘要： A driving circuit for a matrix type liquid crystal display device is disclosed. The driving circuit comprises: a gate driver for, during a writing period, selectively driving a scanning line included in a group of scanning lines which correspond to the field to be scanned, and for, during an erasing period, selectively driving a scanning line included in another group of scanning lines which do not correspond to the field to be scanned; a source driver for, during said writing period of an even field, applying a signal voltage the level of which corresponds to a video signal, to the signal lines, and for, during the erasing period, applying a voltage to the signal lines to set the voltage applied to the picture elements to a level below the threshold level of the picture elements; and another source driver for, during said writing period of an odd field, applying a signal voltage the level of which corresponds to a video signal, to the signal lines, and for, during the erasing period, applying a voltage to the signal lines to set the voltage applied to the picture elements to a level below the threshold level of the picture elements. The writing period and the erasing period shares one horizontal scanning period.
摘要翻译： 公开了一种用于矩阵型液晶显示装置的驱动电路。 驱动电路包括：栅极驱动器，用于在写入周期期间选择性地驱动包括在与要扫描的场相对应的一组扫描线中的扫描线，并且在擦除期间，选择性地驱动包括的扫描线 在与扫描区域不对应的另一组扫描线中; 源极驱动器，在偶数场的所述写入周期期间，将对应于视频信号的电平的信号电压施加到信号线，并且在擦除周期期间，向信号线施加电压以设置 施加到像素的电压到低于图像元素的阈值水平的电平; 以及另一个源极驱动器，在奇数场的所述写入周期期间，将对应于视频信号的电平的信号电压施加到信号线，并且在擦除周期期间，向信号线施加电压， 将施加到像素的电压设置为低于图像元素的阈值电平的电平。 写周期和擦除周期共有一个水平扫描周期。
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公开(公告)号：US4983885A
公开(公告)日：1991-01-08
申请号：US277420
申请日：1988-11-29
IPC分类号： G09G3/30
CPC分类号： G09G3/30 , G09G2310/0267 , G09G2310/0275
摘要： A thin-film EL display panel drive circuit capable of varying the drive voltage according to changes in the number of emitting picture elements.
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公开(公告)号：US4866348A
公开(公告)日：1989-09-12
申请号：US45189
申请日：1987-04-28
IPC分类号： G09G3/30
CPC分类号： G09G3/30 , G09G2310/0248 , G09G2310/0267 , G09G2310/0275 , G09G2320/0204
摘要： A drive circuit for a thin-film electroluminescent (EL) matrix display panel includes an odd side N-ch high voltage MOS driver, and an odd side P-ch high voltage MOS driver connected to odd number scanning electrodes of the thin-film electroluminescent (EL) matrix display panel. Even number scanning electrodes of the thin-film electroluminescent (EL) matrix display panel are connected to an even side N-ch high voltage MOS driver and an even side P-ch high voltage MOS driver. The four MOS drivers are effectively controlled to perform an alternating current driving of the thin-film electroluminescent (EL) matrix display panel. A source level switching circuit is connected to the odd side and even side N-ch high voltage MOS drivers so as to switch the source voltage in synchronization with the field driving of the thin-film electroluminescent (EL) matrix display panel.
摘要翻译： 用于薄膜电致发光（EL）矩阵显示面板的驱动电路包括奇数侧N沟道高电压MOS驱动器和连接到薄膜电致发光的奇数扫描电极的奇数侧P-ch高电压MOS驱动器 （EL）矩阵显示面板。 薄膜电致发光（EL）矩阵显示面板的偶数扫描电极连接到偶极N沟道高电压MOS驱动器和偶极侧P沟道高电压MOS驱动器。 有效地控制四个MOS驱动器，以进行薄膜电致发光（EL）矩阵显示面板的交流驱动。 源极电平切换电路连接到奇数侧和偶数侧N沟道高电压MOS驱动器，以便与薄膜电致发光（EL）矩阵显示面板的场驱动同步地切换源电压。
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公开(公告)号：US4479120A
公开(公告)日：1984-10-23
申请号：US310753
申请日：1981-10-13
CPC分类号： H05B33/08 , G09G3/30 , Y02B20/325
摘要： A display device includes an EL panel including an array of scan electrodes, an array of data electrodes crossing the scan electrodes and a plurality of pixels each lying sandwiched between a respective one of the scan electrodes and a respective one of data electrodes, a circuit for applying sequentially a write pulse voltage V.sub.W to the scan electrodes in a line scanning fashion and a circuit for applying a refresh pulse voltage V.sub.R of a polarity opposite that of the write pulse voltage V.sub.W throughout the panel upon completion of field scanning. A circuit is further provided for applying throughout the display panel upon completion of field scanning a pulse voltage having the same polarity as that of the refresh pulse V.sub.R and an amplitude insufficient to cause electroluminescence. Alternatively, a pulse voltage having a polarity opposite that of the refresh pulse V.sub.R and an amplitude insufficient to cause electroluminescence may be applied after the application of the refresh pulse V.sub.R is completed.
摘要翻译： 显示装置包括：EL面板，其包括扫描电极阵列，与扫描电极交叉的数据电极阵列，以及分别夹在扫描电极中的相应扫描电极和数据电极之间的多个像素， 以线扫描方式依次施加写入脉冲电压VW到扫描电极，以及用于在场扫描完成时在整个面板施加与写入脉冲电压VW的刷新脉冲电压VR相反的刷新脉冲电压VR的电路。 进一步提供电路，用于在场扫描完成场景扫描时具有与刷新脉冲VR相同极性的脉冲电压和不足以引起电致发光的振幅。 或者，可以在施加刷新脉冲VR完成之后施加具有与刷新脉冲VR的极性相反的脉冲电压和不足以引起电致发光的振幅。
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公开(公告)号：US3967112A
公开(公告)日：1976-06-29
申请号：US478614
申请日：1974-06-12
申请人： Yoshiharu Kanatani , Masahiro Ise , Etsuo Mizukami
发明人： Yoshiharu Kanatani , Masahiro Ise , Etsuo Mizukami
CPC分类号： G03G5/024
摘要： Disclosed is a photo-image memory panel composed of an electroluminescent element which exhibits electrical polarization effects upon light excitation. Under the conditions when the panel is biased by DC voltage or DC offset voltage, light irradiation is applied to the panel to establish a light-activated polarized electric field of which the intensity is controllable in dependence upon a photo-image desired to be written into the panel. Then, the photo-image written into the panel is held while maintaining the polarized electric field. Thereafter, application of a predetermined voltage pulse enables the reading out of the photo-image in the form of light emission. Alternatively, in case of an electroluminescent element of which the light emission versus applied voltage characteristics involve the hysteresis phenomenon, a train of alternating current pulses are employed as reading-out pulses to maintain light emission corresponding to the read-out image.
摘要翻译： 公开了一种由电致发光元件组成的光图像存储面板，其在光激发时具有电极化效应。 在面板被直流电压或直流偏移电压偏置的条件下，对面板施加光照射，以建立光活化极化电场，其强度可根据期望写入的光电图像而被控制 面板。 然后，在保持极化电场的同时保持写入面板的照片图像。 此后，施加预定的电压脉冲使得能够以光发射的形式读出照片。 或者，在发光与施加电压特性包含滞后现象的电致发光元件的情况下，采用一系列交流脉冲作为读出脉冲，以维持对应于读出图像的发光。
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公开(公告)号：US4488150A
公开(公告)日：1984-12-11
申请号：US508414
申请日：1983-06-28
申请人： Yoshiharu Kanatani
发明人： Yoshiharu Kanatani
CPC分类号： H04N3/14
摘要： There is disclosed an image display device including a thin film EL element with crossing scan electrodes and data electrodes, a modulation circuit for applying data pulses of a varying amplitude to the respective ones of the data electrodes, and a scan circuit for applying pulses of a fixed amplitude to the respective ones of the scan electrodes. The data pulses are supplied to the data electrodes via voltage follower drive stages which form part of the modulation circuit. Preferably, the data signals are digital-to-analog converted and held in a memory circuit for a while. Upon application of stepwise waveform signals in the memory circuit the data signals are thereafter digital-to-analog converted. The resulting analog amplitude from the digital-to-analog conversion is temporarily held in a gate capacitance and supplied to the EL element via the voltage follower drive stage.
摘要翻译： 公开了一种图像显示装置，其包括具有交叉扫描电极和数据电极的薄膜EL元件，用于向各个数据电极施加变化幅度的数据脉冲的调制电路，以及用于施加脉冲的扫描电路 固定振幅到相应的扫描电极。 通过形成调制电路的一部分的电压跟随器驱动级将数据脉冲提供给数据电极。 优选地，数据信号被数模转换并保存在存储器电路中一段时间。 当在存储器电路中应用逐步波形信号时，数据信号随后被数模转换。 从数模转换得到的模拟幅度暂时保持在栅极电容中，并通过电压跟随器驱动级提供给EL元件。
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10.发明授权Driving method for a thin-film electroluminescent element of a three-layer construction 失效三层结构的薄膜电致发光元件的驱动方法
公开(公告)号：US3975661A
公开(公告)日：1976-08-17
申请号：US480723
申请日：1974-06-19
申请人： Yoshiharu Kanatani , Masahiro Ise , Etsuo Mizukami , Chuji Suzuki
发明人： Yoshiharu Kanatani , Masahiro Ise , Etsuo Mizukami , Chuji Suzuki
CPC分类号： H05B33/08 , Y02B20/325
摘要： Disclosed is a driving method for a thin-film electroluminescent element of a three-layer construction which emits light and exhibits the hysteresis phenomenon within the light emission versus applied voltage characteristics. The light intensity is maintained and memorized at a predetermined value in the element by the application of a train of sustaining pulses of alternating voltage, the amplitude thereof being chosen at the voltage level appearing at the point in the hysteresis loop characteristics where the difference between the maximum light brightness on the voltage decreasing curve and the minimum light brightness on the voltage increasing curve is considerably large. The sustaining light brightness is controlled by varying the amplitude or the pulse width of the sustaining pulses. The information may be written, memorized and eliminated in the EL element as variations of the light brightness. To write or eliminate the information in the EL element, it is also effective to utilize external light excitation.
摘要翻译： 公开了一种三层结构的薄膜电致发光元件的驱动方法，其发光并在发光与施加的电压特性之间表现出滞后现象。 通过施加一串交流电压的维持脉冲将光强度维持并存储在元件中的预定值处，其幅度在出现在磁滞回线特性中的点处的电压电平下选择，其中， 降压曲线上的最大光亮度和电压上升曲线上的最小光亮度相当大。 通过改变维持脉冲的幅度或脉冲宽度来控制维持光亮度。 信息可以在EL元件中写入，存储和消除，作为光亮度的变化。 为了写入或消除EL元件中的信息，使用外部光激发也是有效的。
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