公开(公告)号：US09153168B2

公开(公告)日：2015-10-06

申请号：US10610243

申请日：2003-07-01

申请人： Mitsuaki Osame ,  Yu Yamazaki ,  Tomoyuki Iwabuchi

发明人： Mitsuaki Osame ,  Yu Yamazaki ,  Tomoyuki Iwabuchi

IPC分类号： G06F3/038 ,  G09G5/00 ,  G09G3/32 ,  G09G3/20

CPC分类号： G09G3/3233 ,  G09G3/2014 ,  G09G3/2025 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/02 ,  G09G2310/0251 ,  G09G2310/0256 ,  G09G2320/043

摘要： There is provided a method for deciding a duty factor in driving a light-emitting device and a driving method using the duty factor that enable restraint of deterioration of light-emitting elements and improvement in reliability. In a method for deciding a duty factor of a light-emitting device that performs display based on an analog video signal, with respect to a characteristic obtained by multiplying the characteristic of luminance after X hours in relation to the current density and the characteristic of luminance after X hours in relation to the duty factor when the total quantity of electricity flowing through light-emitting elements in one frame period is defined at a specific value, a range of duty factor that enables realization of luminance approximately exceeding a value that is 0.8 times a maximum value is regarded as an optimum range of duty factor.

摘要翻译： 提供了一种用于确定驱动发光器件的占空因数的方法和使用能够抑制发光元件劣化并提高可靠性的占空因数的驱动方法。 在用于决定基于模拟视频信号执行显示的发光装置的占空因数的方法中，关于通过将X小时后的亮度特性与电流密度相乘而得到的特性和亮度特性 当在一个帧周期中流过发光元件的总电量被定义为特定值时，相对于占空因数X小时后，能够实现近似超过0.8倍的亮度的占空比的范围 最大值被认为是占空比的最佳范围。

公开(公告)号：US08400067B2

公开(公告)日：2013-03-19

申请号：US13480550

申请日：2012-05-25

申请人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

发明人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

IPC分类号： G09G3/10

CPC分类号： H01L27/326 ,  G09G3/2022 ,  G09G3/3233 ,  G09G2300/0417 ,  G09G2300/0842 ,  G09G2300/0885 ,  G09G2310/0251 ,  H01L27/283 ,  H01L29/78672 ,  H01L51/5012 ,  H01L51/5296

摘要： A light emitting device and an element substrate which are capable of suppressing variations in the luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor. According to the invention, a depletion mode transistor is used as a driving transistor. The gate of the driving transistor is fixed in its potential or connected to the source or drain thereof to operate in a saturation region with a constant current flow. A current controlling transistor which operates in a linear region is connected in series to the driving transistor, and a video signal for transmitting a light emission or non-emission of a pixel is inputted to the gate of the current controlling transistor through a switching transistor.

公开(公告)号：US08274458B2

公开(公告)日：2012-09-25

申请号：US11656909

申请日：2007-01-22

申请人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Tomoyuki Iwabuchi

发明人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Tomoyuki Iwabuchi

IPC分类号： G09G3/32

CPC分类号： G09G3/2007 ,  G09G2320/043

摘要： Degradations in light emitting elements occur with the passage of time. A method of driving a light-emitting device is characterized by including the steps of: supplying a light-emitting element with the current in response to an analog video signal during a sustaining period; and turning switch off thereby to make the light-emitting element nonluminous or making first and the second electrodes identical in potential thereby to make the light-emitting element nonluminous during an off time period.

摘要翻译： 随着时间的推移，发光元件的退化发生。 驱动发光装置的方法的特征在于包括以下步骤：在维持期间响应于模拟视频信号向发光元件供应电流; 并关闭开关，从而使发光元件不发光或使第一电极和第二电极的电位相同，从而使发光元件在关闭时间段期间不发光。

公开(公告)号：US20110298362A1

公开(公告)日：2011-12-08

申请号：US13211815

申请日：2011-08-17

申请人： Masayuki Sakakura ,  Ritsuko Nagao ,  Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Yoshifumi Tanada

发明人： Masayuki Sakakura ,  Ritsuko Nagao ,  Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Yoshifumi Tanada

IPC分类号： H01J1/62

CPC分类号： H01L27/3276 ,  H01L27/12

摘要： A display device with high-definition, in which display unevenness due to a voltage drop in a wiring or display unevenness due to a variation in characteristics of TFTs are suppressed. The display device of the invention comprises a first wiring for transmitting a video signal and a second wiring for supplying a current to a light emitting element. The first wiring and the second wiring extend parallel to each other, and are formed so as to overlap with each other at least partly with an insulating layer interposed therebetween.

摘要翻译： 具有高清晰度的显示装置，其中由于TFT的特性变化引起的布线中的电压降或显示不均匀性引起的显示不均匀性被抑制。 本发明的显示装置包括用于传输视频信号的第一布线和用于向发光元件提供电流的第二布线。 第一布线和第二布线彼此平行地延伸，并且形成为至少部分地彼此重叠，并且隔着绝缘层。

公开(公告)号：US20110272732A1

公开(公告)日：2011-11-10

申请号：US13184616

申请日：2011-07-18

申请人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

发明人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

IPC分类号： H01L33/36

CPC分类号： H01L27/326 ,  G09G3/2022 ,  G09G3/3233 ,  G09G2300/0417 ,  G09G2300/0842 ,  G09G2300/0885 ,  G09G2310/0251 ,  H01L27/283 ,  H01L29/78672 ,  H01L51/5012 ,  H01L51/5296

摘要： A light emitting device and an element substrate which are capable of suppressing variations in the luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor. According to the invention, a depletion mode transistor is used as a driving transistor. The gate of the driving transistor is fixed in its potential or connected to the source or drain thereof to operate in a saturation region with a constant current flow. A current controlling transistor which operates in a linear region is connected in series to the driving transistor, and a video signal for transmitting a light emission or non-emission of a pixel is inputted to the gate of the current controlling transistor through a switching transistor.

摘要翻译： 一种发光器件和元件衬底，其能够抑制由于驱动晶体管的特性变化而导致的像素之中的发光元件的亮度强度的变化，而不会抑制开关晶体管的截止电流低并且增加电容器的存储容量 。 根据本发明，使用耗尽型晶体管作为驱动晶体管。 驱动晶体管的栅极固定在其电位或连接到其源极或漏极，以在具有恒定电流的饱和区域中工作。 在线性区域中工作的电流控制晶体管与驱动晶体管串联连接，并且用于透射像素的发光或不发光的视频信号通过开关晶体管输入到电流控制晶体管的栅极。

公开(公告)号：US07843408B2

公开(公告)日：2010-11-30

申请号：US10803190

申请日：2004-03-18

申请人： Shunpei Yamazaki ,  Masayuki Sakakura ,  Mitsuaki Osame ,  Takashi Hamada ,  Tamae Takano ,  Yu Yamazaki ,  Aya Anzai

发明人： Shunpei Yamazaki ,  Masayuki Sakakura ,  Mitsuaki Osame ,  Takashi Hamada ,  Tamae Takano ,  Yu Yamazaki ,  Aya Anzai

IPC分类号： G09G3/30

CPC分类号： H01L27/1214 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0233 ,  H01L27/3262 ,  H01L2251/5323

摘要： A light emitting device comprising a light emitting element and a first transistor and a second transistor controlling current to be supplied to the light emitting element in a pixel; the first transistor is normally-on; the second transistor is normally-off; a channel length of the first transistor is longer than a channel width thereof; a channel length of the second transistor is equal to or shorter than a channel length thereof; gate electrodes of the first transistor and the second transistor are connected to each other; the first transistor and the second transistor have the same polarity; and the light emitting element, the first transistor and the second transistor are all connected in series.

摘要翻译： 一种发光器件，包括发光元件和第一晶体管，以及第二晶体管，控制要在像素中提供给所述发光元件的电流; 第一个晶体管正常工作; 第二晶体管正常断开; 第一晶体管的沟道长度比沟道宽度长; 第二晶体管的沟道长度等于或短于其沟道长度; 第一晶体管和第二晶体管的栅电极彼此连接; 第一晶体管和第二晶体管具有相同的极性; 并且发光元件，第一晶体管和第二晶体管都全部串联连接。

公开(公告)号：US20070132677A1

公开(公告)日：2007-06-14

申请号：US11701223

申请日：2007-02-01

申请人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

发明人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

IPC分类号： G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/2022 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0251 ,  H01L27/3244

摘要： A light emitting device and an element substrate which are capable of suppressing variations in the luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor. According to the invention, a driving transistor also serves as an erasing transistor and the driving transistor is operated in a saturation region. The gate of the driving transistor is connected to an erasing scan line and it can be selected whether or not to flow current by a potential of the erasing scan line. In addition, a current controlling transistor which operates in a linear region is connected in series to the driving transistor, thus a video signal transmitting a light emission or non-emission of a pixel is input to the gate of the current controlling transistor through a switching transistor.

公开(公告)号：US07173586B2

公开(公告)日：2007-02-06

申请号：US10807978

申请日：2004-03-24

申请人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

发明人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

IPC分类号： G09G3/32

CPC分类号： G09G3/3233 ,  G09G3/2022 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0251 ,  H01L27/3244

摘要： A light emitting device and an element substrate which are capable of suppressing variations in the luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor. According to the invention, a driving transistor also serves as an erasing transistor and the driving transistor is operated in a saturation region. The gate of the driving transistor is connected to an erasing scan line and it can be selected whether or not to flow current by a potential of the erasing scan line. In addition, a current controlling transistor which operates in a linear region is connected in series to the driving transistor, thus a video signal transmitting a light emission or non-emission of a pixel is input to the gate of the current controlling transistor through a switching transistor.

摘要翻译： 一种发光器件和元件衬底，其能够抑制由于驱动晶体管的特性变化而导致的像素之中的发光元件的亮度强度的变化，而不会抑制开关晶体管的截止电流低并且增加电容器的存储容量 。 根据本发明，驱动晶体管也用作擦除晶体管，并且驱动晶体管在饱和区域中工作。 驱动晶体管的栅极连接到擦除扫描线，并且可以选择是否通过擦除扫描线的电位来流动电流。 此外，在线性区域中工作的电流控制晶体管与驱动晶体管串联连接，因此通过开关将传输像素的发光或不发光的视频信号输入到电流控制晶体管的栅极 晶体管。

公开(公告)号：US07141934B2

公开(公告)日：2006-11-28

申请号：US10799857

申请日：2004-03-15

申请人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

发明人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki

IPC分类号： G09G5/00

CPC分类号： H01L27/326 ,  G09G3/2022 ,  G09G3/3233 ,  G09G2300/0417 ,  G09G2300/0842 ,  G09G2300/0885 ,  G09G2310/0251 ,  H01L27/283 ,  H01L29/78672 ,  H01L51/5012 ,  H01L51/5296

摘要： A light emitting device and an element substrate which are capable of suppressing variations in the luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor. According to the invention, a depletion mode transistor is used as a driving transistor. The gate of the driving transistor is fixed in its potential or connected to the source or drain thereof to operate in a saturation region with a constant current flow. A current controlling transistor which operates in a linear region is connected in series to the driving transistor, and a video signal for transmitting a light emission or non-emission of a pixel is inputted to the gate of the current controlling transistor through a switching transistor.

公开(公告)号：US20050116914A1

公开(公告)日：2005-06-02

申请号：US10999176

申请日：2004-11-30

申请人： Shou Nagao ,  Hajime Kimura ,  Aya Anzai ,  Yu Yamazaki ,  Mitsuaki Osame ,  Yoshifumi Tanada

发明人： Shou Nagao ,  Hajime Kimura ,  Aya Anzai ,  Yu Yamazaki ,  Mitsuaki Osame ,  Yoshifumi Tanada

IPC分类号： G09G3/20 ,  G09G3/32 ,  H01L27/32 ,  G09G3/36

CPC分类号： G09G3/32 ,  G09G3/2022 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2310/0256 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/043 ,  G09G2330/08 ,  H01L27/3244 ,  H01L2251/5323

摘要： The invention provides a display device with high image quality and high definition, a driving method thereof and an element substrate. Further, the invention provides a display device with improved degradation of a light emitting element, a driving method thereof and an element substrate. The display device of the invention has a first transistor, a second transistor, a third transistor, a light emitting element, a source driver, a first gate driver, and a second gate driver. A gate electrode of the first transistor is connected to a gate line, one of a source electrode and a drain electrode thereof is connected to a source line and the other is connected to a gate electrode of the third transistor. The light emitting element, the second transistor and the third transistor are connected in series between a first power source and a second power source. A gate electrode of the second transistor is connected to a third power source, the source driver is connected to the source line, and the first gate driver and the second gate driver are connected to the gate line.

摘要翻译： 本发明提供了具有高图像质量和高清晰度的显示装置，其驱动方法和元件基板。 此外，本发明提供一种具有改善的发光元件劣化的显示装置，其驱动方法和元件基板。 本发明的显示装置具有第一晶体管，第二晶体管，第三晶体管，发光元件，源极驱动器，第一栅极驱动器和第二栅极驱动器。 第一晶体管的栅电极连接到栅极线，源极和漏极之一连接到源极线，而另一个连接到第三晶体管的栅电极。 发光元件，第二晶体管和第三晶体管串联连接在第一电源和第二电源之间。 第二晶体管的栅电极连接到第三电源，源极驱动器连接到源极线，第一栅极驱动器和第二栅极驱动器连接到栅极线。