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公开(公告)号：US4338598A
公开(公告)日：1982-07-06
申请号：US110214
申请日：1980-01-07
IPC分类号： G09G3/30
CPC分类号： G09G3/30 , G09G2310/0267 , G09G2310/0275
摘要： A thin-film EL display panel has a plurality of scanning side electrodes and a plurality of data side electrodes. The thin-film EL display panel is excited to emit light through a pre-charge mode, a discharge modulation mode and a write mode. A voltage lower than a modulation voltage is supplied from the data side electrodes to the thin-film EL display panel as a first pre-charge voltage. Thereafter, a difference voltage between the first pre-charge voltage and the modulation voltage is supplied from the scanning side electrodes to the panel as a second pre-charge voltage, thus reducing power consumption to a minimum during the pre-charge mode.
摘要翻译： 薄膜EL显示面板具有多个扫描侧电极和多个数据侧电极。 激光的薄膜EL显示面板通过预充电模式，放电调制模式和写入模式发光。 作为第一预充电电压，从数据侧电极向薄膜EL显示面板提供低于调制电压的电压。 此后，第一预充电电压和调制电压之间的差值电压作为第二预充电电压从扫描侧电极提供给面板，从而在预充电模式期间将功耗降低到最小。
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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：US4935671A
公开(公告)日：1990-06-19
申请号：US229751
申请日：1988-08-08
申请人： Shigeyuki Harada , Kinichi Isaka , Toshihiro Ohba , Masashi Kawaguchi , Hiroshi Kishishita , Yoshiharu Kanatani , Hisashi Uede
发明人： Shigeyuki Harada , Kinichi Isaka , Toshihiro Ohba , Masashi Kawaguchi , Hiroshi Kishishita , Yoshiharu Kanatani , Hisashi Uede
IPC分类号： G09G3/30
CPC分类号： G09G3/30 , G09G2310/0267 , G09G2310/0275
摘要： When driving a thin-film EL display panel having groups of two electrodes on opposing sides of a thin-film EL layer, a voltage is applied so that the polarity of the AC pulse applied to the intersection (picture element) of opposing electrodes is the reverse of the polarity of the AC pulse applied simultaneously or nearly simultaneously to adjacent or nearly adjacent picture elements. This drive method avoids flicker caused by differing luminance intensities resulting from alternating polarity in EL matrix-type displays.
摘要翻译： 当在薄膜EL层的相对侧驱动具有两个电极组的薄膜EL显示面板时，施加电压，使得施加到相对电极的交点（像素）的交流脉冲的极性为 同时或几乎同时施加到相邻或几乎相邻的图像元件的AC脉冲的极性的反向。 该驱动方法避免了由EL矩阵型显示器中的交替极性引起的不同亮度强度引起的闪烁。
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公开(公告)号：US4914353A
公开(公告)日：1990-04-03
申请号：US217076
申请日：1988-07-08
IPC分类号： G09G3/30
CPC分类号： G09G3/30 , G09G2310/0267 , G09G2310/0275
摘要： The preferred embodiment discloses a new thin-film EL display panel drive circuit using EL layers installed between the scan-side electrodes and the data-side electrodes aligned so as to allow them to cross one another, comprising: scan-side electrodes connected to the drain terminal of the N-ch high-voltage resistant driver having a grounded source terminal and also connected to the other drain terminal of the P-ch high-voltage resistant driver having a source terminal connected to the pull-up charge drive circuit and to the write drive circuit via the scan-side common bus line; and data-side electrodes connected to the drain terminal of the N-ch high-voltage resistant driver having a grounded source terminal and also having the anode common terminal connected to the cathode terminal of the diode array connected to the preliminary charge drive circuit via the data-side common bus line. By grounding the source terminal to the scan-side N-ch MOS ICs, some of the floating-output logic-circuit driving power sources and some of the logic signal transmission photo-couplers can be eliminated. This not only saves component elements conventionally needed for the P-N symmetric EL display panel drive circuits, but also securely suppresses noise interference, thus offering an indispensable technique giving an early and overall improvement over those thin-film EL display drive circuits thus far made available.
摘要翻译： 优选实施例公开了一种使用安装在扫描侧电极和数据侧电极之间的EL层的新的薄膜EL显示面板驱动电路，其被排列成允许它们彼此交叉，包括：扫描侧电极 具有接地源极端子的N沟道高压驱动器的漏极端子，并且还连接到具有连接到上拉电荷驱动电路的源极端子的P沟道高耐压驱动器的另一个漏极端子，以及 写入驱动电路经由扫描侧公共总线; 以及连接到具有接地源极端子的N沟道高耐压驱动器的漏极端子的数据侧电极，并且还具有连接到经由初级充电驱动电路的二极管阵列的阴极端子的阳极公共端子 数据端公共总线。 通过将源极端子接地到扫描侧N沟道MOS IC，可以消除浮置输出逻辑电路驱动电源中的一些和一些逻辑信号传输光电耦合器。 这不仅节省了P-N对称EL显示面板驱动电路通常所需要的元件，而且可以安全地抑制噪声干扰，从而提供了迄今为止可用的薄膜EL显示驱动电路的早期和整体改进的不可或缺的技术。
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公开(公告)号：US4686426A
公开(公告)日：1987-08-11
申请号：US780177
申请日：1985-09-26
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.
摘要翻译： 一种薄膜EL显示面板驱动电路，其能够根据发光像素的数量的变化来改变驱动电压。
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公开(公告)号：US4485379A
公开(公告)日：1984-11-27
申请号：US347421
申请日：1982-02-10
IPC分类号： G09G3/30
CPC分类号： G09G3/30 , G09G2310/0251 , G09G2310/0267 , G09G2310/0275 , G09G2310/06
摘要： 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 is driven by a circuit for applying sequentially a write pulse voltage to the scan electrodes in a line scanning fashion and a circuit for applying a refresh pulse voltage of a polarity opposite to that of the write pulse voltage throughout the panel upon completion of field scanning. The system further includes a circuit for applying throughout the display panel upon completion of field scanning a write compensation pulse of the same polarity as that of the refresh pulse voltage and an amplitude insufficient to cause electroluminescence, and a refresh compensation pulse of a polarity opposite to that of the refresh pulse and an amplitude not enough to cause electroluminescence. Preferably, the values of the write compensation pulse and the refresh compensation pulse depend on factors of an equivalent circuit of the EL panel.
摘要翻译： 包括扫描电极阵列，与扫描电极交叉的数据电极阵列以及夹在扫描电极和相应的一个数据电极之间的多个像素的EL面板被依次施加的电路驱动 以行扫描方式对扫描电极写入脉冲电压，以及用于在场扫描完成时施加与整个面板上的写入脉冲电压极性相反的刷新脉冲电压的电路。 该系统还包括在场扫描完成时在整个显示面板上施加与刷新脉冲电压相同极性的写入补偿脉冲和不足以引起电致发光的振幅的电路，以及极性相反的刷新补偿脉冲 刷新脉冲和幅度不足以引起电致发光。 优选地，写补偿脉冲和刷新补偿脉冲的值取决于EL面板的等效电路的因素。
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公开(公告)号：US5006838A
公开(公告)日：1991-04-09
申请号：US372135
申请日：1989-06-26
IPC分类号： G09G3/30
CPC分类号： G09G3/30 , G09G2310/0267 , G09G2310/0275
摘要： A thin film EL display panel is composed of an EL layer placed between scanning electrodes and data side electrodes which are arranged at right angles to the scanning electrodes. A thin film EL display panel drive circuit includes a first and a second switching circuits connected to each of the scanning electrodes to apply voltages of negative and positive polarities, respectively, with respect to the voltage of the data side electrodes; and third and a fourth switching circuits connected to each of the data side electrodes to respectively charge and discharge the EL layer corresponding to the scanning electrode.
摘要翻译： 薄膜EL显示面板由放置在与扫描电极成直角的扫描电极和数据侧电极之间的EL层组成。 薄膜EL显示面板驱动电路包括连接到每个扫描电极的第一和第二开关电路，分别相对于数据侧电极的电压施加负极性和正极性的电压; 以及连接到每个数据侧电极以分别对与扫描电极相对应的EL层进行充电和放电的第三和第四开关电路。
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公开(公告)号：US4962374A
公开(公告)日：1990-10-09
申请号：US372136
申请日：1989-06-26
CPC分类号： G09G3/30 , G09G2310/0267 , G09G2310/0275
摘要： A thin film electroluminescent (EL) display panel drive circuit includes first and second switching circuits for driving scanning electrodes of the panel in two fields, wherein odd numbered scanning electrodes are applied with a negative voltage polarity and even numbered scanning electrodes are provided with a positive voltage polarity in a first field, and the voltage polarities are reversed during the second field. Data signals are applied to data electrodes by a data electrode driver circuit which includes third and fourth switching circuits for providing selected data electrodes with a modulate voltage of a stepwise nature or ground, depending upon whether the selected data electrodes intersect with selected scanning electrodes having a negative or positive voltage polarity respectively. The stepwise modulation voltage is supplied by a control switching circuit which selectively supplies the third switching circuit with voltages of a first level, a second level and a floating level.
摘要翻译： 薄膜电致发光（EL）显示面板驱动电路包括用于在两个场中驱动面板的扫描电极的第一和第二开关电路，其中奇数扫描电极被施加负电压极性，偶数编号的扫描电极设置有正 第一场中的电压极性，并且在第二场期间电压极性反转。 数据信号通过数据电极驱动电路施加到数据电极，该数据电极驱动电路包括第三和第四开关电路，用于根据所选择的数据电极是否与具有逐步性质或接地的选定扫描电极相交，为所选择的数据电极提供逐步性质或接地的调制电压 负极性或正电压极性。 逐步调制电压由选择性地向第三开关电路提供具有第一电平，第二电平和浮置电平的电压的控制开关电路提供。
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