公开(公告)号：US4983885A

公开(公告)日：1991-01-08

申请号：US277420

申请日：1988-11-29

申请人： Yoshihide Fujioka ,  Shigeyuki Harada ,  Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

发明人： Yoshihide Fujioka ,  Shigeyuki Harada ,  Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

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.

公开(公告)号：US4686426A

公开(公告)日：1987-08-11

申请号：US780177

申请日：1985-09-26

申请人： Yoshihide Fujioka ,  Shigeyuki Harada ,  Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

发明人： Yoshihide Fujioka ,  Shigeyuki Harada ,  Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

IPC分类号： G09G3/30 ,  H01Q19/14

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。

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。

公开(公告)号：US4914353A

公开(公告)日：1990-04-03

申请号：US217076

申请日：1988-07-08

申请人： Shigeyuki Harada ,  Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

发明人： Shigeyuki Harada ,  Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

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。

公开(公告)号：US4866348A

公开(公告)日：1989-09-12

申请号：US45189

申请日：1987-04-28

申请人： Shigeyuki Harada ,  Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

发明人： Shigeyuki Harada ,  Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

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。

公开(公告)号：US5006838A

公开(公告)日：1991-04-09

申请号：US372135

申请日：1989-06-26

申请人： Yosihide Fujioka ,  Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

发明人： Yosihide Fujioka ,  Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

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。

公开(公告)号：US4962374A

公开(公告)日：1990-10-09

申请号：US372136

申请日：1989-06-26

申请人： Yosihide Fujioka ,  Yoshiharu Kanatani ,  Toshihiro Ohba ,  Hisashi Uede

发明人： Yosihide Fujioka ,  Yoshiharu Kanatani ,  Toshihiro Ohba ,  Hisashi Uede

IPC分类号： H05B33/10 ,  G09G3/20 ,  G09G3/30

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。

公开(公告)号：US4893060A

公开(公告)日：1990-01-09

申请号：US186743

申请日：1988-04-25

申请人： Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

发明人： Toshihiro Ohba ,  Yoshiharu Kanatani ,  Hisashi Uede

IPC分类号： G09G3/30

CPC分类号： G09G3/30 ,  G09G2310/0267 ,  G09G2310/0275

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.

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。

公开(公告)号：US4801920A

公开(公告)日：1989-01-31

申请号：US532961

申请日：1983-09-16

申请人： Toshihiro Ohba ,  Hiroshi Kinoshita ,  Yoshiharu Kanatani ,  Hisashi Uede

发明人： Toshihiro Ohba ,  Hiroshi Kinoshita ,  Yoshiharu Kanatani ,  Hisashi Uede

IPC分类号： G09G3/20 ,  G09G3/30

CPC分类号： G09G3/30 ,  G09G2330/02

摘要： A drive system for a thin-film EL matrix display panel includes first and second voltage doubler circuits and a DC booster circuit. A 1/4V.sub.M voltage, which has the 1/4 voltage level of the modulation voltage, is applied to the first voltage doubler circuit of which an output voltage is applied to a modulation voltage applying circuit. The 1/4V.sub.M voltage is further applied to the DC booster circuit which develops an output voltage having a voltage level of 1/2V.sub.W. The thus obtained 1/2V.sub.W voltage is applied to the second voltage doubler circuit of which an output voltage is applied to a write voltage applying circuit.

摘要翻译： 用于薄膜EL矩阵显示面板的驱动系统包括第一和第二倍压器电路和DC升压电路。 将具有调制电压的1/4电压电平的1 / 4VM电压施加到向调制电压施加电路施加输出电压的第一倍压电路。 1 / 4VM电压进一步施加到DC升压电路，其产生具有1 / 2VW的电压电平的输出电压。 将这样获得的1 / 2VW电压施加到施加到写入电压施加电路的输出电压的第二倍压器电路。

公开(公告)号：US4594589A

公开(公告)日：1986-06-10

申请号：US412377

申请日：1982-08-27

申请人： Toshihiro Ohba ,  Hiroshi Kinoshita ,  Yoshiharu Kanatani ,  Hisashi Uede

发明人： Toshihiro Ohba ,  Hiroshi Kinoshita ,  Yoshiharu Kanatani ,  Hisashi Uede

IPC分类号： G09G3/30 ,  G09G3/12

CPC分类号： G09G3/30 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2330/023

摘要： A method for driving a thin-film electroluminescent (EL) display panel comprises the steps of charging the EL display panel by applying to the EL display panel a voltage of KV.sub.0 where V.sub.0 is a voltage for emitting electroluminescence from the EL display panel and K is more than zero and less than 1, and applying the voltage of V.sub.0 to the EL display panel, whereby the EL display panel is driven with a stepwise driving pulse due to the capacitance feature of the EL display panel. A circuit for enabling the method is also provided.

摘要翻译： 一种用于驱动薄膜电致发光（EL）显示面板的方法包括以下步骤：通过向EL显示面板施加KV0的电压来对EL显示面板充电，其中V0是用于从EL显示面板发射电致发光的电压，K是 大于零且小于1，并且将V0的电压施加到EL显示面板，由此EL显示面板由于EL显示面板的电容特征而由逐步驱动脉冲驱动。 还提供了一种启用该方法的电路。