公开(公告)号：US07327169B2

公开(公告)日：2008-02-05

申请号：US10668247

申请日：2003-09-24

申请人： Mitsuaki Osame ,  Aya Anzai

发明人： Mitsuaki Osame ,  Aya Anzai

IPC分类号： H03K19/20

CPC分类号： H03K19/018521 ,  G11C19/00 ,  G11C19/28 ,  H03K19/00384 ,  H03K19/0963

摘要： A threshold voltage of a transistor is fluctuated because of fluctuation in film thickness of a gate insulating film or in gate length and gate width caused by differences of used substrates or manufacturing steps. In order to solve the problem, according to the present invention, there is provided a clocked inverter including a first transistor and a second transistor connected in series, and a compensation circuit including a third transistor and a fourth transistor connected in series. In the clocked inverter, gates of the third transistor and the fourth transistor are connected to each other, drains of the third transistor and the fourth transistor are each connected to a gate of the first transistor, sources of the first transistor and the fourth transistor are each electrically connected to a first power source, a source of the second transistor is electrically connected to a second power source, and an amplitude of a signal inputted to a source of the third transistor is smaller than a potential difference between the first power source and the second power source.

摘要翻译： 晶体管的阈值电压由于栅极绝缘膜的膜厚的波动或由于使用的衬底的差异或制造步骤引起的栅极长度和栅极宽度而波动。 为了解决该问题，根据本发明，提供了一种包括串联连接的第一晶体管和第二晶体管的时钟反相器，以及包括串联连接的第三晶体管和第四晶体管的补偿电路。 在时钟反相器中，第三晶体管和第四晶体管的栅极彼此连接，第三晶体管和第四晶体管的漏极分别连接到第一晶体管的栅极，第一晶体管和第四晶体管的源极 每个电连接到第一电源，第二晶体管的源极电连接到第二电源，并且输入到第三晶体管的源极的信号的幅度小于第一电源和第二电源之间的电位差， 第二个电源。

公开(公告)号：US07250720B2

公开(公告)日：2007-07-31

申请号：US10827444

申请日：2004-04-20

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： H05B33/00

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：US07142030B2

公开(公告)日：2006-11-28

申请号：US10724365

申请日：2003-12-01

申请人： Mitsuaki Osame ,  Aya Anzai

发明人： Mitsuaki Osame ,  Aya Anzai

IPC分类号： H03K3/12

CPC分类号： H03K5/249 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3291 ,  G09G3/3648 ,  G09G2300/08 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0294 ,  G09G2320/0233 ,  G11C19/184 ,  H03K3/356121

摘要： The data latch circuit of the invention includes a means for short-circuiting an input terminal and an output terminal of an inverter and by connecting the input terminal to one electrode of a capacitor and sampling a data signal or a reference potential to the other electrode of the capacitor, an accurate operation can be obtained without being influenced by variations in the TFT characteristics even when the amplitude of an input signal is small relatively to the width of a power supply voltage.

摘要翻译： 本发明的数据锁存电路包括用于使逆变器的输入端子和输出端子短路的装置，并且将输入端子连接到电容器的一个电极，并将数据信号或参考电位采样到另一个电极的另一个电极 即使当输入信号的幅度相对于电源电压的宽度较小时，也可以不受TFT特性的变化的影响而获得精确的操作。

公开(公告)号：US20060118699A1

公开(公告)日：2006-06-08

申请号：US11292058

申请日：2005-12-02

申请人： Mitsuaki Osame ,  Aya Anzai

发明人： Mitsuaki Osame ,  Aya Anzai

IPC分类号： H01L31/00

CPC分类号： G09G3/3208 ,  G09G3/3216 ,  G09G3/3225 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2330/02 ,  G09G2330/021 ,  G09G2330/08

摘要： The invention has a monitoring portion which detects change of ambient temperature and degradation with time, provided with a plurality of monitoring pixels and a monitoring line. Each of the plurality of monitoring pixels has a light emitting element for monitoring, a constant current source, a switch, and a detecting circuit, and one electrode of the light emitting element for monitoring is connected to the monitoring line through the switch. The detecting circuit controls on and off of the switch, and specifically in the case where both electrodes of the light emitting element for monitoring are short-circuited, the switch is turned off. The invention having the aforementioned configuration generates no potential change of the power supply line of the pixel portion when both electrodes of a light emitting element for monitoring are short-circuited.

摘要翻译： 本发明具有检测环境温度的变化和随时间劣化的监视部分，设置有多个监视像素和监视线。 多个监视像素中的每一个具有用于监视的发光元件，恒流源，开关和检测电路，用于监视的发光元件的一个电极通过开关连接到监视线。 检测电路控制开关的导通和关断，特别是在用于监视的发光元件的两个电极短路的情况下，开关被断开。 具有上述构造的本发明当用于监视的发光元件的两个电极短路时，不产生像素部分的电源线的电位变化。

公开(公告)号：US09613565B2

公开(公告)日：2017-04-04

申请号：US11968902

申请日：2008-01-03

申请人： Mitsuaki Osame ,  Aya Anzai ,  Ryota Fukumoto

发明人： Mitsuaki Osame ,  Aya Anzai ,  Ryota Fukumoto

IPC分类号： G09G3/3225 ,  G09G3/20 ,  G09G3/3275 ,  G09G3/22 ,  G09G3/32

CPC分类号： G09G3/3225 ,  G09G3/2018 ,  G09G3/22 ,  G09G3/32 ,  G09G3/3275 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2330/021 ,  G09G2330/028

摘要： An object of the present invention is to provide a light emitting device that is able to suppress power consumption while a balance of white light is kept, without making a configuration of a power source circuit complicated. A power source potential corresponding to each color of a light emitting element is used as a higher electric potential of a video signal and an electric potential of a power source line in the case that a transistor for controlling a supply of electric current to the light emitting element is a p-channel TFT. Conversely, a power source potential corresponding to each color of a light emitting element is used as a lower electric potential of a video signal and an electric potential of a power source line in the case that a transistor for controlling a supply of electric current to the light emitting element is an n-channel TFT.

公开(公告)号：US08947325B2

公开(公告)日：2015-02-03

申请号：US13567119

申请日：2012-08-06

申请人： Aya Anzai ,  Mitsuaki Osame ,  Shunpei Yamazaki

发明人： Aya Anzai ,  Mitsuaki Osame ,  Shunpei Yamazaki

IPC分类号： G09G3/30 ,  H01L27/32 ,  G06F1/32 ,  H04W52/02

CPC分类号： H01L27/156 ,  G06F1/32 ,  G06F1/3203 ,  G06F1/3265 ,  G09G3/30 ,  G09G3/3208 ,  G09G2300/0439 ,  G09G2320/043 ,  H01L27/322 ,  H01L27/3267 ,  H04M2250/16 ,  H04W52/027 ,  Y02D10/153

摘要： A display device having a first pixel electrode and a second pixel electrode whose areas are different from each other is provided. In the display device, the first pixel electrode and the second pixel electrode are electrically connected to a first transistor and a second transistor, respectively. Gates of the first transistor and the second transistor are electrically connected to each other. A potential is supplied to the first pixel electrode and the second pixel electrode through a wiring electrically connected to the first transistor and the second transistor.

摘要翻译： 提供具有第一像素电极和第二像素电极的显示装置，其区域彼此不同。 在显示装置中，第一像素电极和第二像素电极分别电连接到第一晶体管和第二晶体管。 第一晶体管和第二晶体管的栅极彼此电连接。 通过与第一晶体管和第二晶体管电连接的布线将电位提供给第一像素电极和第二像素电极。

公开(公告)号：US08723760B2

公开(公告)日：2014-05-13

申请号：US11832307

申请日：2007-08-01

申请人： Mitsuaki Osame ,  Aya Anzai ,  Jun Koyama ,  Makoto Udagawa ,  Masahiko Hayakawa ,  Shunpei Yamazaki

发明人： Mitsuaki Osame ,  Aya Anzai ,  Jun Koyama ,  Makoto Udagawa ,  Masahiko Hayakawa ,  Shunpei Yamazaki

IPC分类号： G09G3/30

CPC分类号： H01L33/08 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0254 ,  G09G2320/043 ,  H01L27/3211 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3295 ,  H01L2924/0002 ,  H01L2924/00

摘要： A-light-emitting device which realizes a high aperture ratio and in which the quality of image is little affected by the variation in the characteristics of TFTs. A large holding capacitor Cs is not provided in the pixel portion but, instead, the channel length and the channel width of the driving TFTs are increased, and the channel capacitance is utilized as Cs. The channel length is selected to be very larger than the channel width to improve current characteristics in the saturated region, and a high VGS is applied to the driving TFTs to obtain a desired drain current. Therefore, the drain currents of the driving TFTs are little affected by the variation in the threshold voltage. In laying out the pixels, further, wiring is arranged under the partitioning wall and the driving TFTs are arranged under the wiring in order to avoid a decrease in the aperture ratio despite of an increase in the size of the driving TFT. In the case of the 3-transistor pixels, the switching TFT and the erasing TFT are linearly arranged to further increase the aperture ratio.

摘要翻译： 实现高开口率并且图像质量几乎不受TFT的特性变化影响的A发光器件。 在像素部分中不设置大的保持电容器Cs，而是增加了沟道长度和沟道宽度，并且将沟道电容用作Cs。 选择沟道长度非常大于沟道宽度以改善饱和区域中的电流特性，并且将高VGS施加到驱动TFT以获得期望的漏极电流。 因此，驱动TFT的漏极电流几乎不受阈值电压的变化的影响。 此外，在布置像素时，布线布置在分隔壁下方，并且驱动TFT布置在布线下方，以避免开口率的降低，尽管驱动TFT的尺寸增加。 在3晶体管像素的情况下，开关TFT和擦除TFT被线性布置以进一步增加开口率。

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：US20120262206A1

公开(公告)日：2012-10-18

申请号：US13537229

申请日：2012-06-29

申请人： Mitsuaki Osame ,  Aya Anzai

发明人： Mitsuaki Osame ,  Aya Anzai

IPC分类号： H03B1/00

CPC分类号： H03K5/249 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3291 ,  G09G3/3648 ,  G09G2300/08 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0294 ,  G09G2320/0233 ,  G11C19/184 ,  H03K3/356121

摘要： The data latch circuit of the invention includes a means for short-circuiting an input terminal and an output terminal of an inverter and by connecting the input terminal to one electrode of a capacitor and sampling a data signal or a reference potential to the other electrode of the capacitor, an accurate operation can be obtained without being influenced by variations in the TFT characteristics even when the amplitude of an input signal is small relatively to the width of a power supply voltage.

摘要翻译： 本发明的数据锁存电路包括用于使逆变器的输入端子和输出端子短路的装置，并且将输入端子连接到电容器的一个电极，并将数据信号或参考电位采样到另一个电极的另一个电极 即使当输入信号的幅度相对于电源电压的宽度较小时，也可以不受TFT特性的变化的影响而获得精确的操作。

公开(公告)号：US20120235128A1

公开(公告)日：2012-09-20

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： H01L27/32

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。