公开(公告)号：US08552933B2

公开(公告)日：2013-10-08

申请号：US10876714

申请日：2004-06-28

申请人： Jun Koyama ,  Mitsuaki Osame ,  Yu Yamazaki ,  Aya Anzai ,  Ryota Fukumoto

发明人： Jun Koyama ,  Mitsuaki Osame ,  Yu Yamazaki ,  Aya Anzai ,  Ryota Fukumoto

IPC分类号： G09G3/30

CPC分类号： G09G3/3225 ,  G09G3/2022 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  H01L27/3262 ,  H01L2251/5323

摘要： The invention provides a light emitting device and an element substrate in which a luminance variation of light emitting elements among pixels due to variation in characteristics of driving transistors can be suppressed even without suppressing the off-current of a switching transistor low or increasing the capacitance of a capacitor. A gate of a first transistor is connected to a first scan line, and a gate of a second transistor is connected to a second scan line. A connection between a signal line and a gate of a third transistor is controlled by the first transistor. The second transistor and the third transistor are connected in series between a pixel electrode of a light emitting element and a power supply line. The signal line, the second scan line and the power supply line are disposed in parallel, while the first scan line is crossed with the signal line, the second scan line and the power supply line.

摘要翻译： 本发明提供了一种发光器件和元件衬底，其中即使不抑制开关晶体管的截止电流低或增加电容的电容，也可以抑制由于驱动晶体管的特性的变化而导致的像素之中的发光元件的亮度变化 一个电容器。 第一晶体管的栅极连接到第一扫描线，第二晶体管的栅极连接到第二扫描线。 信号线和第三晶体管的栅极之间的连接由第一晶体管控制。 第二晶体管和第三晶体管串联连接在发光元件的像素电极和电源线之间。 当第一扫描线与信号线，第二扫描线和电源线交叉时，信号线，第二扫描线和电源线并联布置。

公开(公告)号：US08957836B2

公开(公告)日：2015-02-17

申请号：US11730617

申请日：2007-04-03

申请人： Jun Koyama ,  Mitsuaki Osame ,  Yu Yamazaki ,  Aya Anzai

发明人： Jun Koyama ,  Mitsuaki Osame ,  Yu Yamazaki ,  Aya Anzai

IPC分类号： G09G3/30 ,  G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0251 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2340/0492

摘要： A light emitting device capable of suppressing drop in luminance or luminance unevenness of a light emitting element due to deterioration of an electro luminescent material and capable of switching an image direction vertically to horizontally without a frame memory additionally provided. The light emitting device of the invention comprises in each pixel first to fourth transistors, a light emitting element, and a signal line. The first transistor and the second transistor control the connection between the signal line and a gate of the third transistor, the fourth transistor controls a current value supplied to the light emitting element, and the third transistor selects whether the current is supplied to the light emitting element or not. Further, the first transistor and the second transistor are switched separately.

摘要翻译： 一种发光装置，其能够抑制由于电致发光材料的劣化导致的发光元件的亮度或亮度不均匀性的下降，并能够在没有帧存储器的情况下垂直地水平切换图像方向。 本发明的发光器件在每个像素中包括第一至第四晶体管，发光元件和信号线。 第一晶体管和第二晶体管控制信号线与第三晶体管的栅极之间的连接，第四晶体管控制提供给发光元件的电流值，第三晶体管选择电流是否被提供给发光 元素或不。 此外，第一晶体管和第二晶体管分开切换。

公开(公告)号：US08421715B2

公开(公告)日：2013-04-16

申请号：US11131462

申请日：2005-05-18

申请人： Masahiko Hayakawa ,  Yu Yamazaki ,  Yukari Ando ,  Keisuke Miyagawa ,  Jun Koyama ,  Tomoyuki Iwabuchi ,  Mitsuaki Osame ,  Aya Anzai ,  Shunpei Yamazaki

发明人： Masahiko Hayakawa ,  Yu Yamazaki ,  Yukari Ando ,  Keisuke Miyagawa ,  Jun Koyama ,  Tomoyuki Iwabuchi ,  Mitsuaki Osame ,  Aya Anzai ,  Shunpei Yamazaki

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/2022 ,  G09G3/3216 ,  G09G3/3241 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0465 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/063 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2320/045 ,  G09G2320/048 ,  G09G2330/04

摘要： A light emitting element has a property that a resistance value (internal resistance value) thereof changes according to the ambient temperature. Specifically, assuming that the room temperature is a normal temperature, when the ambient temperature becomes higher than the normal temperature, a resistance value is decreased, and when the ambient temperature becomes lower than the normal temperature, a resistance value is increased. Therefore, when the ambient temperature changes or degradation is caused with time due to the aforementioned property of the light emitting element, luminance varies. The invention provides a display device where an effect of current fluctuation of a light emitting element, which is caused by the change in ambient temperature and degradation with time, is suppressed. The display device comprises a monitoring element, to which a current is supplied from a current source. A voltage applied to the monitoring element is applied to a light emitting element.

摘要翻译： 发光元件具有其电阻值（内部电阻值）根据环境温度而变化的性质。 具体地，假设室温为常温，当环境温度变得高于常温时，电阻值降低，并且当环境温度变得低于常温时，电阻值增加。 因此，由于上述发光元件的特性，当环境温度随时间变化或劣化时，亮度变化。 本发明提供了一种显示装置，其中抑制了由环境温度的变化和随着时间的劣化而引起的发光元件的电流波动的影响。 显示装置包括监视元件，从电流源提供电流。 施加到监视元件的电压被施加到发光元件。

公开(公告)号：US20090174333A1

公开(公告)日：2009-07-09

申请号：US12348574

申请日：2009-01-05

申请人： Masahiko Hayakawa ,  Yu Yamazaki ,  Yukari Ando ,  Keisuke Miyagawa ,  Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Shunpei Yamazaki ,  Satoshi Seo ,  Hiroko Abe

发明人： Masahiko Hayakawa ,  Yu Yamazaki ,  Yukari Ando ,  Keisuke Miyagawa ,  Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Shunpei Yamazaki ,  Satoshi Seo ,  Hiroko Abe

IPC分类号： H05B37/02

CPC分类号： G09G3/3233 ,  G09G3/006 ,  G09G2300/08 ,  G09G2300/0842 ,  G09G2310/0256 ,  G09G2310/0275 ,  G09G2310/061 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2330/02 ,  G09G2330/12 ,  H01L27/3244 ,  H01L2251/5323

摘要： A display device where the influence of variations in current of the light emitting element due to changes in ambient temperature and changes with time can be suppressed. The display device of the invention has a light emitting element, a driving transistor connected in series to the light emitting element, a monitoring light emitting element, a limiter transistor connected in series to the monitoring light emitting element, a constant current source for supplying a constant current to the monitoring light emitting element, and a circuit for outputting a potential equal to an inputted potential. A first electrode of the light emitting element is connected to an output terminal of the circuit through the driving transistor, and a first electrode of the monitoring light emitting element is connected to an input terminal of the circuit through the limiter transistor. The channel length L1 and the channel width W1 of the driving transistor, and the channel length L2 and the channel width W2 of the limiter transistor satisfy L1/W1:L2/W2=1:2 to 1:10.

摘要翻译： 可以抑制由于环境温度的变化而随着时间的变化而影响发光元件的电流的变化的显示装置。 本发明的显示装置具有发光元件，与发光元件串联连接的驱动晶体管，监视发光元件，与监视发光元件串联连接的限幅晶体管，用于供给 到监视发光元件的恒定电流，以及用于输出等于输入电位的电位的电路。 发光元件的第一电极通过驱动晶体管连接到电路的输出端，并且监控发光元件的第一电极通过限幅晶体管连接到电路的输入端。 驱动晶体管的沟道长度L1和沟道宽度W1以及限制晶体管的沟道长度L2和沟道宽度W2满足L1 / W1：L2 / W2 = 1:2至1:10。

公开(公告)号：US07482629B2

公开(公告)日：2009-01-27

申请号：US11123209

申请日：2005-05-06

申请人： Masahiko Hayakawa ,  Yu Yamazaki ,  Yukari Ando ,  Keisuke Miyagawa ,  Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Shunpei Yamazaki ,  Satoshi Seo ,  Hiroko Abe

发明人： Masahiko Hayakawa ,  Yu Yamazaki ,  Yukari Ando ,  Keisuke Miyagawa ,  Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Shunpei Yamazaki ,  Satoshi Seo ,  Hiroko Abe

IPC分类号： H01L29/04

CPC分类号： G09G3/3233 ,  G09G3/006 ,  G09G2300/08 ,  G09G2300/0842 ,  G09G2310/0256 ,  G09G2310/0275 ,  G09G2310/061 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2330/02 ,  G09G2330/12 ,  H01L27/3244 ,  H01L2251/5323

摘要： A display device where the influence of variations in current of the light emitting element due to changes in ambient temperature and changes with time can be suppressed. The display device of the invention has a light emitting element, a driving transistor connected in series to the light emitting element, a monitoring light emitting element, a limiter transistor connected in series to the monitoring light emitting element, a constant current source for supplying a constant current to the monitoring light emitting element, and a circuit for outputting a potential equal to an inputted potential. A first electrode of the light emitting element is connected to an output terminal of the circuit through the driving transistor, and a first electrode of the monitoring light emitting element is connected to an input terminal of the circuit through the limiter transistor. The channel length L1 and the channel width W1 of the driving transistor, and the channel length L2 and the channel width W2 of the limiter transistor satisfy L1/W1: L2/W2=1:2 to 1:10.

摘要翻译： 可以抑制由于环境温度的变化而随着时间的变化而影响发光元件的电流的变化的显示装置。 本发明的显示装置具有发光元件，与发光元件串联连接的驱动晶体管，监视发光元件，与监视发光元件串联连接的限幅晶体管，用于供给 到监视发光元件的恒定电流，以及用于输出等于输入电位的电位的电路。 发光元件的第一电极通过驱动晶体管连接到电路的输出端，并且监控发光元件的第一电极通过限幅晶体管连接到电路的输入端。 驱动晶体管的沟道长度L1和沟道宽度W1以及限制晶体管的沟道长度L2和沟道宽度W2满足L1 / W1：L2 / W2 = 1:2至1:10。

公开(公告)号：US07834355B2

公开(公告)日：2010-11-16

申请号：US12348574

申请日：2009-01-05

申请人： Masahiko Hayakawa ,  Yu Yamazaki ,  Yukari Ando ,  Keisuke Miyagawa ,  Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Shunpei Yamazaki ,  Satoshi Seo ,  Hiroko Abe

发明人： Masahiko Hayakawa ,  Yu Yamazaki ,  Yukari Ando ,  Keisuke Miyagawa ,  Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Shunpei Yamazaki ,  Satoshi Seo ,  Hiroko Abe

IPC分类号： H01L29/04

CPC分类号： G09G3/3233 ,  G09G3/006 ,  G09G2300/08 ,  G09G2300/0842 ,  G09G2310/0256 ,  G09G2310/0275 ,  G09G2310/061 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2330/02 ,  G09G2330/12 ,  H01L27/3244 ,  H01L2251/5323

摘要： A display device where the influence of variations in current of the light emitting element due to changes in ambient temperature and changes with time can be suppressed. The display device of the invention has a light emitting element, a driving transistor connected in series to the light emitting element, a monitoring light emitting element, a limiter transistor connected in series to the monitoring light emitting element, a constant current source for supplying a constant current to the monitoring light emitting element, and a circuit for outputting a potential equal to an inputted potential. A first electrode of the light emitting element is connected to an output terminal of the circuit through the driving transistor, and a first electrode of the monitoring light emitting element is connected to an input terminal of the circuit through the limiter transistor. The channel length L1 and the channel width W1 of the driving transistor, and the channel length L2 and the channel width W2 of the limiter transistor satisfy L1/W1:L2/W2=1:2 to 1:10.

摘要翻译： 可以抑制由于环境温度的变化而随着时间的变化而影响发光元件的电流的变化的显示装置。 本发明的显示装置具有发光元件，与发光元件串联连接的驱动晶体管，监视发光元件，与监视发光元件串联连接的限幅晶体管，用于供给 到监视发光元件的恒定电流，以及用于输出等于输入电位的电位的电路。 发光元件的第一电极通过驱动晶体管连接到电路的输出端，并且监控发光元件的第一电极通过限幅晶体管连接到电路的输入端。 驱动晶体管的沟道长度L1和沟道宽度W1以及限制晶体管的沟道长度L2和沟道宽度W2满足L1 / W1：L2 / W2 = 1:2至1:10。

公开(公告)号：US07388562B2

公开(公告)日：2008-06-17

申请号：US10876734

申请日：2004-06-28

申请人： Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Ryota Fukumoto

发明人： Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Ryota Fukumoto

IPC分类号： G09G3/30

CPC分类号： G09G3/3258 ,  G09G3/2022 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  H01L27/3244

摘要： A display device in which the influence of a parasitic capacitance or a wiring capacitance is suppressed without lowering OFF-current of a switching transistor or increasing the capacitance of a capacitor, and a driving method thereof using area gray scale display in particular. The display device of the invention comprises a plurality of sub pixels each including a driving transistor whose gate potential is fixed, and area gray scale display is achieved. Specifically, each of the sub pixels comprises, in addition to the driving transistor, a switching transistor, a current controlling transistor connected in series with the driving transistor, and a light emitting element.

摘要翻译： 特别是在不降低开关晶体管的截止电流或增加电容器的电容的情况下抑制寄生电容或布线电容的影响的显示装置及其驱动方法。 本发明的显示装置包括多个子像素，每个子像素包括其栅极电位固定的驱动晶体管，并且实现了区域灰度显示。 具体地，每个子像素除了驱动晶体管之外还包括开关晶体管，与驱动晶体管串联连接的电流控制晶体管和发光元件。

公开(公告)号：US20070177088A1

公开(公告)日：2007-08-02

申请号：US11730617

申请日：2007-04-03

申请人： Jun Koyama ,  Mitsuaki Osame ,  Yu Yamazaki ,  Aya Anzai

发明人： Jun Koyama ,  Mitsuaki Osame ,  Yu Yamazaki ,  Aya Anzai

IPC分类号： G02F1/1343

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0251 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2340/0492

摘要： A light emitting device capable of suppressing drop in luminance or luminance unevenness of a light emitting element due to deterioration of an electro luminescent material and capable of switching an image direction vertically to horizontally without a frame memory additionally provided. The light emitting device of the invention comprises in each pixel first to fourth transistors, a light emitting element, and a signal line. The first transistor and the second transistor control the connection between the signal line and a gate of the third transistor, the fourth transistor controls a current value supplied to the light emitting element, and the third transistor selects whether the current is supplied to the light emitting element or not. Further, the first transistor and the second transistor are switched separately.

摘要翻译： 一种发光装置，其能够抑制由于电致发光材料的劣化导致的发光元件的亮度或亮度不均匀性的下降，并能够在没有帧存储器的情况下垂直地水平切换图像方向。 本发明的发光器件在每个像素中包括第一至第四晶体管，发光元件和信号线。 第一晶体管和第二晶体管控制信号线与第三晶体管的栅极之间的连接，第四晶体管控制提供给发光元件的电流值，第三晶体管选择电流是否被提供给发光 元素或不。 此外，第一晶体管和第二晶体管分开切换。

公开(公告)号：US07218294B2

公开(公告)日：2007-05-15

申请号：US10844401

申请日：2004-05-13

申请人： Jun Koyama ,  Mitsuaki Osame ,  Yu Yamazaki ,  Aya Anzai

发明人： Jun Koyama ,  Mitsuaki Osame ,  Yu Yamazaki ,  Aya Anzai

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0251 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2340/0492

摘要： A light emitting device capable of suppressing drop in luminance or luminance unevenness of a light emitting element due to deterioration of an electro luminescent material and capable of switching an image direction vertically to horizontally without a frame memory additionally provided. The light emitting device of the invention comprises in each pixel first to fourth transistors, a light emitting element, and a signal line. The first transistor and the second transistor control the connection between the signal line and a gate of the third transistor, the fourth transistor controls a current value supplied to the light emitting element, and the third transistor selects whether the current is supplied to the light emitting element or not. Further, the first transistor and the second transistor are switched separately.

摘要翻译： 一种发光装置，其能够抑制由于电致发光材料的劣化导致的发光元件的亮度或亮度不均匀性的下降，并能够在没有帧存储器的情况下垂直地水平切换图像方向。 本发明的发光器件在每个像素中包括第一至第四晶体管，发光元件和信号线。 第一晶体管和第二晶体管控制信号线与第三晶体管的栅极之间的连接，第四晶体管控制提供给发光元件的电流值，第三晶体管选择电流是否被提供给发光 元素或不。 此外，第一晶体管和第二晶体管分开切换。

公开(公告)号：US20060038804A1

公开(公告)日：2006-02-23

申请号：US11123209

申请日：2005-05-06

申请人： Masahiko Hayakawa ,  Yu Yamazaki ,  Yukari Ando ,  Keisuke Miyagawa ,  Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Shunpei Yamazaki ,  Satoshi Seo ,  Hiroko Abe

发明人： Masahiko Hayakawa ,  Yu Yamazaki ,  Yukari Ando ,  Keisuke Miyagawa ,  Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Shunpei Yamazaki ,  Satoshi Seo ,  Hiroko Abe

IPC分类号： G09G5/00

CPC分类号： G09G3/3233 ,  G09G3/006 ,  G09G2300/08 ,  G09G2300/0842 ,  G09G2310/0256 ,  G09G2310/0275 ,  G09G2310/061 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2330/02 ,  G09G2330/12 ,  H01L27/3244 ,  H01L2251/5323

摘要： A display device where the influence of variations in current of the light emitting element due to changes in ambient temperature and changes with time can be suppressed. The display device of the invention has a light emitting element, a driving transistor connected in series to the light emitting element, a monitoring light emitting element, a limiter transistor connected in series to the monitoring light emitting element, a constant current source for supplying a constant current to the monitoring light emitting element, and a circuit for outputting a potential equal to an inputted potential. A first electrode of the light emitting element is connected to an output terminal of the circuit through the driving transistor, and a first electrode of the monitoring light emitting element is connected to an input terminal of the circuit through the limiter transistor. The channel length L1 and the channel width W1 of the driving transistor, and the channel length L2 and the channel width W2 of the limiter transistor satisfy L1/W1:L2/W2=1:2 to 1:10.

摘要翻译： 可以抑制由于环境温度的变化而随着时间的变化而影响发光元件的电流的变化的显示装置。 本发明的显示装置具有发光元件，与发光元件串联连接的驱动晶体管，监视发光元件，与监视发光元件串联连接的限幅晶体管，用于供给 到监视发光元件的恒定电流，以及用于输出等于输入电位的电位的电路。 发光元件的第一电极通过驱动晶体管连接到电路的输出端，并且监控发光元件的第一电极通过限幅晶体管连接到电路的输入端。 驱动晶体管的沟道长度L 1和沟道宽度W 1以及限制晶体管的沟道长度L 2和沟道宽度W 2满足L 1 / W 1：L 2 / W 2 = 1：2〜1 ：10。