公开(公告)号：US20050190126A1

公开(公告)日：2005-09-01

申请号：US10650080

申请日：2003-08-28

申请人： Hajime Kimura ,  Kazutaka Inukai

发明人： Hajime Kimura ,  Kazutaka Inukai

IPC分类号： H01L51/50 ,  G09G3/20 ,  G09G3/30 ,  G09G3/32 ,  G09G3/36 ,  H05B33/14

CPC分类号： G09G3/325 ,  G09G3/2022 ,  G09G2300/0814 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/043 ,  G09G2330/02

摘要： In a display device having a light emitting element, an accurate setting operation needs much time, unless a current value of the signal current (video signal) is set to high value. On the contrary, the driving current value for causing a light emitting element to emit light is very small. Therefore, it is difficult to perform an accurate setting operation. However, according to the present invention, the current source circuit includes plural transistors. The plural transistors are connected in parallel when the setting operation is performed on the current source circuit, whereas the plural transistors are connected in series when the light emitting element is caused to emit light. Further, the speed of the setting operation is increased because a light emitting element is capable of emitting light with a constant luminance and a current value to set up a current source circuit is higher than a driving current value when a light emitting element emits light.

摘要翻译： 在具有发光元件的显示装置中，除非信号电流（视频信号）的当前值被设定为高值，所以准确的设定动作需要很多时间。 相反，用于使发光元件发光的驱动电流值非常小。 因此，难以进行准确的设定动作。 然而，根据本发明，电流源电路包括多个晶体管。 当对电流源电路进行设置操作时，多个晶体管并联连接，而当发光元件发光时多个晶体管串联连接。 此外，由于发光元件能够以恒定亮度发光，并且当发光元件发光时，电流源电路的设定电流值高于驱动电流值，所以设定操作的速度增加。

公开(公告)号：US07319443B2

公开(公告)日：2008-01-15

申请号：US10650080

申请日：2003-08-28

申请人： Hajime Kimura ,  Kazutaka Inukai

发明人： Hajime Kimura ,  Kazutaka Inukai

IPC分类号： G09G3/30

CPC分类号： G09G3/325 ,  G09G3/2022 ,  G09G2300/0814 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/043 ,  G09G2330/02

摘要： In a display device having a light emitting element, an accurate setting operation needs much time, unless a current value of the signal current (video signal) is set to high value. On the contrary, the driving current value for causing a light emitting element to emit light is very small. Therefore, it is difficult to perform an accurate setting operation. However, according to the present invention, the current source circuit includes plural transistors. The plural transistors are connected in parallel when the setting operation is performed on the current source circuit, whereas the plural transistors are connected in series when the light emitting element is caused to emit light. Further, the speed of the setting operation is increased because a light emitting element is capable of emitting light with a constant luminance and a current value to set up a current source circuit is higher than a driving current value when a light emitting element emits light.

摘要翻译： 在具有发光元件的显示装置中，除非信号电流（视频信号）的当前值被设定为高值，所以准确的设定动作需要很多时间。 相反，用于使发光元件发光的驱动电流值非常小。 因此，难以进行准确的设定动作。 然而，根据本发明，电流源电路包括多个晶体管。 当对电流源电路进行设置操作时，多个晶体管并联连接，而当发光元件发光时多个晶体管串联连接。 此外，由于发光元件能够以恒定亮度发光，并且当发光元件发光时，电流源电路的设定电流值高于驱动电流值，所以设定操作的速度增加。

公开(公告)号：US07348947B2

公开(公告)日：2008-03-25

申请号：US10745497

申请日：2003-12-29

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G3/32

CPC分类号： G09G3/3283 ,  G09G3/3233 ,  G09G2310/0248 ,  G09G2310/027 ,  G09G2320/043

摘要： A simple DA converter circuit which reads in digital voltage value data and outputs analog current value data is provided. The DA converter circuit according to the invention can be applied, for example, to a data driver circuit of an AM-OLED display device. The DA converter circuit comprises a current output circuit comprising a plurality of drive transistors. Gate electrodes of the transistors are electrically connected to each other, and a switch is provided between the gate electrode and drain electrode of each drive transistor.

摘要翻译： 提供读取数字电压值数据并输出模拟电流值数据的简单DA转换器电路。 根据本发明的DA转换器电路可以应用于例如AM-OLED显示装置的数据驱动电路。 DA转换器电路包括包括多个驱动晶体管的电流输出电路。 晶体管的栅电极彼此电连接，并且在每个驱动晶体管的栅电极和漏电极之间提供开关。

公开(公告)号：US07333099B2

公开(公告)日：2008-02-19

申请号：US10747078

申请日：2003-12-30

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G06F3/038 ,  G09G5/00

CPC分类号： G09G3/30 ,  G09G2310/0275

摘要： A current data compression circuit of which output current value is accurate even when transistors with large variations in electrical characteristics are used. The current data compression circuit is an electronic circuit comprising a drive element including a plurality of transistors and a means for switching over a series connection state and a parallel connection state of the transistors. An inputted current is compressed for output by the current data compression circuit. Or, the current data compression circuit is an electronic circuit comprising a drive element including a plurality of transistors in which the transistors are used in parallel connection states when inputting current and in series connection states when outputting current.

摘要翻译： 即使使用电特性变化大的晶体管，其输出电流值也准确的电流数据压缩电路。 目前的数据压缩电路是包括具有多个晶体管的驱动元件和用于切换晶体管的串联连接状态和并联连接状态的装置的电子电路。 输入的电流被压缩以便由当前数据压缩电路输出。 或者，当前数据压缩电路是包括驱动元件的电子电路，该驱动元件包括多个晶体管，其中当输入电流时输入电流和串联连接状态时晶体管被并联使用。

公开(公告)号：US07230591B2

公开(公告)日：2007-06-12

申请号：US10154214

申请日：2002-05-23

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G3/30

CPC分类号： G09G3/2011 ,  G09G3/2022 ,  G09G3/3233 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2300/089 ,  G09G2310/0251 ,  G09G2310/0256 ,  G09G2320/043 ,  H01L27/3244

摘要： A circuit for driving an organic light emitting element by alternating current in an active matrix organic light emitting display is provided. A circuit of a pixel provided with a switching TFT and a current controlling TFT further is provided with an element that has a rectifying characteristic. The switching TFT charges a capacitor in accordance with a data signal and the current controlling TFT controls light emission of an organic light emitting element in accordance with voltage supplied from the capacitor. Reverse bias is readily applied to the organic light emitting element by applying voltage to the element that has a rectifying characteristic in the forward direction from an alternating current source.

摘要翻译： 提供了一种通过有源矩阵有机发光显示器中的交流电驱动有机发光元件的电路。 设置有开关TFT和电流控制TFT的像素的电路还具有具有整流特性的元件。 开关TFT根据数据信号对电容器进行充电，并且电流控制TFT根据从电容器提供的电压来控制有机发光元件的发光。 通过向来自交流电源的正向的整流特性的元件施加电压，容易地对有机发光元件施加反向偏置。

公开(公告)号：US07154120B2

公开(公告)日：2006-12-26

申请号：US10756454

申请日：2004-01-14

申请人： Shunpei Yamazaki ,  Takeshi Fukunaga ,  Jun Koyama ,  Kazutaka Inukai

发明人： Shunpei Yamazaki ,  Takeshi Fukunaga ,  Jun Koyama ,  Kazutaka Inukai

IPC分类号： H01L29/04

CPC分类号： H01L27/124 ,  H01L27/1214 ,  H01L27/127 ,  H01L27/1288 ,  H01L29/42384 ,  H01L29/4908 ,  H01L29/66757

摘要： The present invention provides an inexpensive light emitting device and an inexpensive electric appliance. By reducing the number of photolithography steps in the fabrication of TFTs, the yield of the light emitting devices can be enhanced and the manufacturing period can be shortened. The present invention is substantially characterized in that a gate electrode is formed of a conductive film made of a plurality of layers and the concentration of impurity regions formed in the inside of an active layer can be adjusted by making use of the selection ratio at the time of etching these layers.

摘要翻译： 本发明提供廉价的发光装置和便宜的电器。 通过减少TFT的制造中的光刻步骤的数量，可以提高发光器件的产量，并且可以缩短制造周期。 本发明的特征在于，栅电极由多层制成的导电膜形成，并且可以通过利用当时的选择比来调节在有源层的内部形成的杂质区的浓度 蚀刻这些层。

公开(公告)号：US07005675B2

公开(公告)日：2006-02-28

申请号：US10447268

申请日：2003-05-29

申请人： Yasuhiro Sakamoto ,  Takeshi Noda ,  Kazutaka Inukai

发明人： Yasuhiro Sakamoto ,  Takeshi Noda ,  Kazutaka Inukai

IPC分类号： H01L29/04

CPC分类号： H01L29/78696 ,  G09G3/3233 ,  G09G3/3283 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/043 ,  H01L27/3244

摘要： A current-input light-emitting device of the invention converts a current corresponding to a given video signal to a voltage by passing the current between two nodes of four nodes of a multi-terminal transistor, converts the voltage to a current again by shorting the other two nodes different and supplies the current to a light-emitting element. A threshold-corrected, voltage-input light-emitting device shorts two nodes of four nodes of a multi-terminal transistor to write a threshold value voltage into a storage capacitor and to write a voltage corresponding to a given video signal into the storage capacitor. Next, the other two nodes are shorted, and the voltage of the two nodes is converted to a current. Then the current is supplied to a light-emitting element.

摘要翻译： 本发明的电流输入发光装置通过使多端子晶体管的四个节点的两个节点之间的电流通过来将与给定视频信号相对应的电流转换为电压，通过短路将电压转换为电流 其他两个节点不同，并将电流提供给发光元件。 阈值校正的电压输入发光装置使多端子晶体管的四个节点的两个节点短路，将阈值电压写入存储电容器，并将与给定视频信号相对应的电压写入存储电容器。 接下来，其他两个节点短路，并将两个节点的电压转换为电流。 然后将电流提供给发光元件。

公开(公告)号：US06909243B2

公开(公告)日：2005-06-21

申请号：US10438164

申请日：2003-05-14

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G3/20 ,  G09G3/32 ,  G09G3/10

CPC分类号： G09G3/3283 ,  G09G3/20 ,  G09G3/325 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0275

摘要： A novel driving method for conducting gradation display is provided. Also, a signal line driver circuit is provided which includes a current source circuit having a small area. Further, miniaturization and reduction in size of a frame of a light-emitting device can be attained. A gate selection period is divided into plural periods, and a (writing) operation of writing a signal to a pixel having a transistor connected with a scanning line that is selected and a (reading) operation of reading a signal current into a current source circuit connected with a signal line connected with a scanning line that is not selected are performed simultaneously in each of the divided periods in the gate selection period. Therefore, the signal line driver circuit that includes a current source circuit having a small area is provided. Consequently, the miniaturization and reduction in size of the frame of the light-emitting device can be attained.

摘要翻译： 提供了一种用于进行灰度显示的新型驱动方法。 此外，提供了包括具有小面积的电流源电路的信号线驱动电路。 此外，可以实现发光装置的框架的小型化和小型化。 栅极选择期间分为多个周期，以及向与选择的扫描线连接的晶体管的像素写入信号的写入动作，以及向电流源电路读取信号电流的（读取）动作 与在栅极选择期间的每个分割周期同时进行与未被选择的扫描线连接的信号线连接。 因此，提供包括具有小面积的电流源电路的信号线驱动电路。 因此，可以实现发光装置的框架的小型化和小型化。

公开(公告)号：US06809343B2

公开(公告)日：2004-10-26

申请号：US10455044

申请日：2003-06-05

申请人： Shunpei Yamazaki ,  Toshimitsu Konuma ,  Jun Koyama ,  Kazutaka Inukai ,  Mayumi Mizukami

发明人： Shunpei Yamazaki ,  Toshimitsu Konuma ,  Jun Koyama ,  Kazutaka Inukai ,  Mayumi Mizukami

IPC分类号： H01L2715

CPC分类号： G09G3/3233 ,  G09G3/30 ,  G09G3/3275 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2310/061 ,  G09G2320/0233 ,  H01L27/1203 ,  H01L27/3244 ,  H01L27/3262 ,  H01L29/66772 ,  H01L29/78621 ,  H01L2251/566

摘要： There is provided an electronic device having high reliability and high color reproducibility. A pixel structure is made such that a switching FET (201) and an electric current controlling FET (202) are formed on a single crystal semiconductor substrate (11), and an EL element (203) is electrically connected to the electric current controlling FET (202). The fluctuation in characteristics of the electric current controlling FET (202) is very low among pixels, and an image with high color reproducibility can be obtained. By taking hot carrier measures in the electric current controlling FET (202), the electronic device having high reliability can be obtained.

摘要翻译： 提供了具有高可靠性和高色彩再现性的电子设备。 进行像素结构，使得开关FET（201）和电流控制用FET（202）形成在单晶半导体基板（11）上，并且将EL元件（203）电连接到电流控制FET （202）。 电流控制FET（202）的特性波动在像素中非常低，并且可以获得具有高色彩再现性的图像。 通过在电流控制用FET（202）中采取热载体测量，可以获得具有高可靠性的电子设备。

公开(公告)号：US06788003B2

公开(公告)日：2004-09-07

申请号：US10060709

申请日：2002-01-29

申请人： Kazutaka Inukai ,  Tomoyuki Iwabuchi

发明人： Kazutaka Inukai ,  Tomoyuki Iwabuchi

IPC分类号： G09G310

CPC分类号： G09G3/3266 ,  G09G3/2022 ,  G09G3/3233 ,  G09G3/3275 ,  G09G3/3283 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/061 ,  G09G2320/0242 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/0693 ,  G09G2330/02

摘要： A light emitting device is provided, in which a change of luminance of an OLED is suppressed and a desired color display can be stably performed even if an organic light emitting layer is somewhat deteriorated or an environmental temperature is varied. Separately from a pixel portion for displaying an image, a pixel portion for measuring a driving current of the OLED is provided in the light emitting device. The driving current is measured in the pixel portion for measuring the driving current of the OLED, and a value of the voltage supplied to the above two pixel portions from a variable power supply is corrected such that the measured driving current has a reference value. With the above-described structure, a reduction of the luminance accompanied with the deterioration of the organic light emitting layer can be suppressed. As a result, a clear image can be displayed.

摘要翻译： 提供一种发光器件，其中抑制OLED的亮度变化，并且即使有机发光层稍微劣化或环境温度变化，也可以稳定地执行期望的彩色显示。 与用于显示图像的像素部分分开地，用于测量OLED的驱动电流的像素部分设置在发光器件中。 在用于测量OLED的驱动电流的像素部分中测量驱动电流，并且校正从可变电源提供给上述两个像素部分的电压的值，使得测量的驱动电流具有参考值。 利用上述结构，可以抑制伴随有机发光层的劣化的亮度的降低。 结果，可以显示清晰的图像。