公开(公告)号：US5973456A

公开(公告)日：1999-10-26

申请号：US787049

申请日：1997-01-28

申请人： Masahiko Osada ,  Ken Nishioka ,  Hiroyuki Kishita ,  Tadashi Hattori

发明人： Masahiko Osada ,  Ken Nishioka ,  Hiroyuki Kishita ,  Tadashi Hattori

IPC分类号： G09G3/30 ,  G09G3/28

CPC分类号： G09G3/30 ,  G09G2320/0223

摘要： To eliminate uneven luminance between columns, and along with this, to eliminate uneven luminance also among EL elements in several columns in an EL display device for performing matrix display, in a matrix type EL display device in which a scan voltage is sequentially applied to scan electrodes and EL elements are caused to electroluminesce by this scan voltage and a data voltage, a pulse width of the scan voltage is kept uniform, and together with this, a charging period for the EL elements is varied in accordance with a number of light emitting pixels in a line scanned and driven to eliminate uneven luminance between columns. Additionally, a holding period for holding a charging voltage is provided to alleviate differences in terminal voltages among the EL elements due to wiring resistance delay and to eliminate uneven luminance among the EL elements.

摘要翻译： 为了消除列之间的不均匀的亮度，并且与此同时，为了在用于执行矩阵显示的EL显示装置中的几列的EL元件中消除不均匀的亮度，在依次施加扫描电压的矩阵型EL显示装置中 电极和EL元件由该扫描电压和数据电压引起，使扫描电压的脉冲宽度保持均匀，并且与此同时EL元件的充电期间根据发光的数量而变化 被扫描和驱动的行中的像素消除了列之间的不均匀亮度。 此外，提供用于保持充电电压的保持期以减轻由于布线电阻延迟引起的EL元件之间的端子电压的差异，并且消除EL元件之间的不均匀的亮度。

公开(公告)号：US06271812B1

公开(公告)日：2001-08-07

申请号：US09149076

申请日：1998-09-08

申请人： Masahiko Osada ,  Ken Nishioka ,  Hiroyuki Kishita ,  Hideki Saito ,  Toshinori Ninoyu

发明人： Masahiko Osada ,  Ken Nishioka ,  Hiroyuki Kishita ,  Hideki Saito ,  Toshinori Ninoyu

IPC分类号： G09G330

CPC分类号： G09G3/30 ,  G09G2310/0245 ,  G09G2310/0275 ,  G09G2330/02

摘要： An Electroluminescent display device is designed not to display residual images due to electric charges stored in electroluminescent pixels or to make them invisible, when the device is turned on again. The stored charges are eliminated at the time a normal display on the panel is turned off at an end of an operation, by scanning pixels at least one time while giving a non-activating data voltage thereto. Alternatively, upon turning on the panel, pixels which were activated in a previous use are all lit at least one time, thereby making the residual images invisible. Thus, the residual images stored in a previous operation are not shown or made invisible when the electroluminescent display device is turned on next time.

摘要翻译： 电致发光显示装置被设计为不显示由于存储在电致发光像素中的电荷而导致的残留图像，或者当设备再次接通时，它们不可见。 在操作结束时通过扫描像素至少一次同时向其提供非激活数据电压时，在面板上的正常显示被关闭时消除存储的电荷。 或者，在打开面板时，在先前使用中被激活的像素全部点亮至少一次，从而使残留图像不可见。 因此，当电致发光显示装置下次打开时，在先前操作中存储的残留图像未显示或不可见。

公开(公告)号：US6121943A

公开(公告)日：2000-09-19

申请号：US855396

申请日：1997-05-13

申请人： Ken Nishioka ,  Hiroyuki Kishita ,  Masahiko Osada

发明人： Ken Nishioka ,  Hiroyuki Kishita ,  Masahiko Osada

IPC分类号： G09G3/30

CPC分类号： G09G3/30 ,  G09G2300/06 ,  G09G2310/0248 ,  G09G2310/0256 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2330/045 ,  G09G2330/06

摘要： To reduce the influence of generation of heat at scan driver ICs during the application of a scan signal with reduced time of charge and discharge and to eliminate the problem of a rush current, in an EL display where scan driver Ics sequentially apply a scan signal to a plurality of scan electrodes and data driver IC applies a data signal to data electrodes to selectively cause EL elements to emit light responsive to the scan signal and data signal, constant current control circuits are provided to control charge and discharge currents at constant currents during the application of the scan signal to the scan electrodes by the scan driver ICs.

摘要翻译： 为了减少扫描驱动器IC中产生热量的影响，在施加具有减少的充电和放电时间的扫描信号的同时，并且消除冲击电流的问题，在EL显示器中，扫描驱动器1c顺序地将扫描信号施加到 多个扫描电极和数据驱动器IC将数据信号施加到数据电极，以响应于扫描信号和数据信号选择性地使EL元件发光，提供恒流控制电路以在恒定电流期间控制恒定电流的充放电电流 通过扫描驱动器IC将扫描信号施加到扫描电极。

公开(公告)号：US5847516A

公开(公告)日：1998-12-08

申请号：US675672

申请日：1996-07-03

申请人： Hiroyuki Kishita ,  Masahiko Osada ,  Hiroaki Himi ,  Nobuei Ito ,  Tadashi Hattori ,  Hideki Saito

发明人： Hiroyuki Kishita ,  Masahiko Osada ,  Hiroaki Himi ,  Nobuei Ito ,  Tadashi Hattori ,  Hideki Saito

IPC分类号： G09G3/30 ,  G09G3/12

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

摘要： A scan driver IC for an EL element in an EL display device supplies, in a positive field, a positive polarity scan voltage and an offset voltage which is higher than ground to scan side driver ICs from voltage supply circuits, and the scan side driver ICs set voltage of scan electrodes to be the offset voltage in the positive field, together with outputting the positive polarity scan voltage to the scan electrodes during electroluminescence timing. Consequently, a voltage of Vr-Vm is applied to the scan side driver ICs, and so the breakdown voltage can be lowered by an amount corresponding to the offset voltage Vm. Circuits for providing such voltages, for providing alternating current drive voltages, and for reducing power consumption of the drive circuits are also disclosed.

摘要翻译： 用于EL显示装置中的EL元件的扫描驱动器IC在正场中提供正极性扫描电压和高于地的偏移电压以从电压供应电路扫描侧驱动器IC，并且扫描侧驱动器IC 将扫描电极的电压设定为正场中的偏移电压，同时在电致发光定时期间将正极性扫描电压输出到扫描电极。 因此，向扫描侧驱动器IC施加Vr-Vm的电压，因此能够将击穿电压降低与偏移电压Vm对应的量。 还公开了用于提供这种电压，用于提供交流驱动电压以及用于降低驱动电路的功耗的电路。

公开(公告)号：US06593919B1

公开(公告)日：2003-07-15

申请号：US09658472

申请日：2000-09-08

申请人： Hiroyuki Kishita ,  Muneaki Matsumoto ,  Masahiko Osada

发明人： Hiroyuki Kishita ,  Muneaki Matsumoto ,  Masahiko Osada

IPC分类号： G09G500

CPC分类号： G09G3/30 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/02

摘要： A display panel driving system, constituted in such a manner that the occurrence of a display irregularity on the display panel can be suppressed without regard to the characteristics or the driving condition of the display panel, is disclosed. An up-counter counts the number of the picture elements which emit light when the EL display panel is horizontally scanned, and the counting result thus obtained is outputted as an addressing signal to an EEPROM. Stored in the EEPROM are data maps MAP, MAP in which pulse width data are written at a plurality of addresses corresponding to the counting ranges of the up-counter. A signal generation means outputs a blank signal BLK which determines the pulse width of a data voltage on the basis of the pulse width data addressed by the up-counter.

摘要翻译： 公开了一种显示面板驱动系统，其不考虑显示面板的特性或驱动条件，可以抑制在显示面板上发生显示不规则。 向上计数器计数当EL显示面板被水平扫描时发光的像素的数量，并且由此获得的计数结果作为寻址信号输出到EEPROM。 存储在EEPROM中的数据映射MAP，MAP，其中脉冲宽度数据以对应于递增计数器的计数范围的多个地址写入。 信号发生装置输出基于由递增计数器寻址的脉冲宽度数据确定数据电压的脉冲宽度的空白信号BLK。

公开(公告)号：US06175193B1

公开(公告)日：2001-01-16

申请号：US09538267

申请日：2000-03-30

申请人： Hiroyuki Kishita ,  Masahiko Osada ,  Koji Ogusu ,  Takashi Hanaki ,  Naoki Matsumoto

发明人： Hiroyuki Kishita ,  Masahiko Osada ,  Koji Ogusu ,  Takashi Hanaki ,  Naoki Matsumoto

IPC分类号： G09G310

CPC分类号： G09G3/30 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0209 ,  G09G2330/02

摘要： A flat display panel having electroluminescent layer and scanning and data electrodes is driven by driving circuits connected to the respective electrodes. Scanning voltages are sequentially supplied to the scanning electrodes one by one, and data voltages are supplied to the data electrodes in synchronism with the scanning voltages, thereby selectively imposing composite voltages on pixels formed at each intersection of the scanning and data electrodes. The pixels on one scanning electrode that is already scanned are charged to a level of a data modulation voltage to prevent a harmful and useless turnaround current from flowing into the scanned pixels when other scanning electrodes are scanned. The pixels on other scanning electrodes that are not yet scanned may be charged to the modulation voltage level at the same time the scanned pixels are charged. Since the turnaround current is thus eliminated, uneven brightness among scanning electrodes otherwise appearing on the display panel is suppressed.

摘要翻译： 具有电致发光层和扫描数据电极的平板显示面板由与各电极连接的驱动电路驱动。 扫描电压逐个依次提供给扫描电极，数据电压与扫描电压同步地提供给数据电极，从而在扫描和数据电极的每个交点处形成的像素选择性地施加复合电压。 已经扫描的一个扫描电极上的像素被充电到数据调制电压的水平，以防止当扫描其它扫描电极时有害和无用的周转电流流入扫描像素。 其他扫描电极上尚未扫描的像素可以在扫描像素被充电的同时被充电到调制电压电平。 由于消除了周转电流，抑制了显示面板上出现的扫描电极之间的不均匀亮度。

公开(公告)号：US6066916A

公开(公告)日：2000-05-23

申请号：US914657

申请日：1997-08-19

申请人： Masahiko Osada ,  Hiroyuki Kishita ,  Yutaka Hattori

发明人： Masahiko Osada ,  Hiroyuki Kishita ,  Yutaka Hattori

IPC分类号： G09F9/30 ,  G09G3/30 ,  H05B33/06 ,  H05B33/26 ,  H01J1/62

CPC分类号： H05B33/06 ,  H05B33/26 ,  G09G3/30

摘要： An electroluminescent matrix display device which displays images with uniform brightness on its panel having connecting terminals for both scanning and data electrodes formed on one side of the panel is disclosed. Scanning electrodes requiring larger current than data electrodes are formed vertically on the panel so that they can be connected directly to the terminals formed on the bottom side of the panel, and data electrodes are formed horizontally to be connected to the terminals at the bottom side through wiring leads. Since the wiring leads have different lengths and resistances from one another, the resistances are compensated or adjusted by changing widths of the wiring leads or adding compensating resistors thereto so that the wiring resistances become uniform or differences thereof are reduced. Running directions of the scanning and data electrodes may be exchanged. In this case, wiring resistance differences for the scanning electrodes are eliminated or reduced in a similar manner as done for the data electrodes. In both cases, uniformity of image brightness is much improved.

摘要翻译： 公开了一种电致发光矩阵显示装置，其在其面板上显示具有均匀亮度的图像，其具有用于形成在面板的一侧上的扫描和数据电极的连接端子。 需要比数据电极大的电流的扫描电极垂直地形成在面板上，使得它们可以直接连接到形成在面板的底侧上的端子，并且数据电极形成为水平地连接到底侧的端子 接线引线。 由于布线引线的长度和电阻彼此不同，所以通过改变布线引线的宽度或增加补偿电阻来补偿或调整电阻，使得布线电阻变得均匀或差异减小。 可以更换扫描和数据电极的运行方向。 在这种情况下，以与数据电极相同的方式消除或减少扫描电极的布线电阻差。 在这两种情况下，图像亮度的均匀性大大提高。

公开(公告)号：US06317107B1

公开(公告)日：2001-11-13

申请号：US09276498

申请日：1999-03-25

申请人： Toshinori Ninoyu ,  Kiyoshi Saeki ,  Hiroyuki Kishita ,  Tomoya Uchida ,  Hideki Saito ,  Masahiko Osada

发明人： Toshinori Ninoyu ,  Kiyoshi Saeki ,  Hiroyuki Kishita ,  Tomoya Uchida ,  Hideki Saito ,  Masahiko Osada

IPC分类号： G09G330

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

摘要： An EL display in which expansion of dielectric breakdown occurring at any one of EL elements is inhibited. Scan electrodes are arranged to receive an offset voltage Vm at those instances other than during application of a scanning voltage thereto in a positive field, while a predetermined voltage is applied to data electrodes to prevent voltage from being applied to EL elements immediately after application of the scan voltage. Accordingly, even where dielectric breakdown occurs at any one of the EL elements due to application of a light emission driving pulse voltage, it is possible to inhibit current flow between the scan electrodes and the data electrodes to thereby inhibit further subsequent dielectric breakdown.

摘要翻译： 在EL元件的任何一个处发生电介质击穿的膨胀被抑制的EL显示器。 扫描电极布置成在正电场施加扫描电压之外的那些情况下接收偏移电压Vm，同时将预定电压施加到数据电极，以防止电压施加到EL元件之后立即施加 扫描电压。 因此，即使由于施加发光驱动脉冲电压而在任何一个EL元件处发生电介质击穿，也可以抑制扫描电极和数据电极之间的电流流动从而抑制进一步的继电介质击穿。

公开(公告)号：US6064158A

公开(公告)日：2000-05-16

申请号：US204169

申请日：1998-12-03

申请人： Hiroyuki Kishita ,  Masahiko Osada ,  Hiroaki Himi

发明人： Hiroyuki Kishita ,  Masahiko Osada ,  Hiroaki Himi

IPC分类号： G09G3/30 ,  G09G3/10

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

摘要： A scan driver IC for an EL element in an EL display device supplies, in a positive field, a positive polarity scan voltage and an offset voltage which is higher than ground to scan side driver ICs from voltage supply circuits, and the scan side driver ICs set voltage of scan electrodes to be the offset voltage in the positive field, together with outputting the positive polarity scan voltage to the scan electrodes during electroluminescence timing. Consequently, a voltage of Vr-Vm is applied to the scan side driver ICs, and so the breakdown voltage can be lowered by an amount corresponding to the offset voltage Vm. Circuits for providing such voltages, for providing alternating current drive voltages, and for reducing power consumption of the drive circuits are also disclosed.

摘要翻译： 用于EL显示装置中的EL元件的扫描驱动器IC在正场中提供正极性扫描电压和高于地的偏移电压以从电压供应电路扫描侧驱动器IC，并且扫描侧驱动器IC 将扫描电极的电压设定为正场中的偏移电压，同时在电致发光定时期间将正极性扫描电压输出到扫描电极。 因此，向扫描侧驱动器IC施加Vr-Vm的电压，因此能够将击穿电压降低与偏移电压Vm对应的量。 还公开了用于提供这种电压，用于提供交流驱动电压以及用于降低驱动电路的功耗的电路。

公开(公告)号：US20080048952A1

公开(公告)日：2008-02-28

申请号：US11826847

申请日：2007-07-19

申请人： Takashi Hanaki ,  Hiroyuki Kishita ,  Tetsuya Katoh

发明人： Takashi Hanaki ,  Hiroyuki Kishita ,  Tetsuya Katoh

IPC分类号： G09G3/32

CPC分类号： G09G3/3283 ,  G09G3/3216 ,  G09G3/3266 ,  G09G2300/023 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2310/062 ,  G09G2320/0233 ,  G09G2320/029

摘要： A passive matrix type display device includes: a display unit having a display area; first electrodes on the area for switching between a conductive state and a non-conductive state; second electrodes on the area; a driving current source for supplying a driving current to the second electrodes; light-emitting elements at an intersection between the first and second electrodes; a first circuit for controlling a part of first electrodes to the conductive state and for scanning the first electrodes; a second circuit for deciding a part of second electrodes corresponding to a part of light-emitting elements emitting a light; light-emission adjustment elements coupled with the second electrodes for branching an adjustment current from the driving current; and a light-emission adjustment controller for controlling the light from each light-emitting element by controlling the adjustment current.

摘要翻译： 无源矩阵型显示装置包括：具有显示区域的显示单元; 用于在导电状态和非导通状态之间切换的区域上的第一电极; 区域上的第二电极; 用于向第二电极提供驱动电流的驱动电流源; 在第一和第二电极之间的交叉点处的发光元件; 第一电路，用于将第一电极的一部分控制到导电状态并用于扫描第一电极; 第二电路，用于确定与发射光的发光元件的一部分相对应的第二电极的一部分; 与第二电极耦合的发光调节元件，用于将调节电流从驱动电流分支; 以及发光调节控制器，用于通过控制调节电流来控制来自每个发光元件的光。