公开(公告)号：US07365715B2

公开(公告)日：2008-04-29

申请号：US10743344

申请日：2003-12-23

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G3/30

CPC分类号： G09G3/3283 ,  G09G3/3208 ,  G09G3/3688 ,  H03F1/301 ,  H03K5/023

摘要： The invention provides a current data amplifier circuit of which output current value is accurate even when transistors with large variation in electrical characteristics are used. According to the invention, a plurality of transistors configuring a driving element is used in a series connection state when inputting current and in a parallel connection state when outputting current. Thus, is it significantly suppressed that the variation are not reflected on the output current value even when the plurality of transistors configuring the driving element have variation.

摘要翻译： 本发明提供一种电流数据放大器电路，即使使用电特性变化大的晶体管时，输出电流值也是准确的。 根据本发明，构成驱动元件的多个晶体管在输入电流时处于串联连接状态，并且在输出电流时以并联连接状态使用。 因此，即使当构成驱动元件的多个晶体管具有变化时，也显着地抑制了变化不反映在输出电流值上。

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：US07145177B2

公开(公告)日：2006-12-05

申请号：US10752815

申请日：2004-01-08

申请人： Etsuko Fujimoto ,  Satoshi Murakami ,  Kazutaka Inukai

发明人： Etsuko Fujimoto ,  Satoshi Murakami ,  Kazutaka Inukai

IPC分类号： H01L27/15

CPC分类号： H01L27/124 ,  H01L27/1214 ,  H01L27/1259 ,  H01L27/127 ,  H01L27/3262 ,  H01L29/66757 ,  H01L29/78621 ,  H01L2029/7863

摘要： There is provided a light emitting device including a TFT having a high driving capacity (on current) and high reliability in a driver circuit and a TFT in which an off current is reduced in a pixel portion. In manufacturing the TFTs, after the TFT having an LDD region is formed, a part of a gate electrode is etched to form the TFT having a GOLD region. Thus, the TFTs having required functions can be easily formed in the driver circuit and the pixel portion, respectively, on the same substrate.

摘要翻译： 提供了一种发光器件，其包括具有驱动电容（导通电流）高的驱动电路和在像素部分中截止电流减小的TFT的高可靠性的TFT。 在制造TFT时，在形成具有LDD区的TFT之后，蚀刻部分栅电极以形成具有GOLD区的TFT。 因此，具有所需功能的TFT可以容易地分别在同一基板上的驱动电路和像素部分中形成。

公开(公告)号：US07053890B2

公开(公告)日：2006-05-30

申请号：US09886148

申请日：2001-06-22

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G5/00

CPC分类号： G09G3/3266 ,  G09G3/2022 ,  G09G3/3275 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/043 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/124 ,  H01L27/3244

摘要： An active matrix display device capable of vivid color display having many tones is provided. The display device is characterized in that each of a plurality of pixels comprises a first TFT for switching, a second TFT for switching, a TFT for erasing, a TFT for EL driving, and an EL element, driving of the TFT for EL driving is controlled by the first TFT for switching, the second TFT for switching, and the TFT for erasing, and light emission by the EL element is controlled by the TFT for EL driving.

公开(公告)号：US07038674B2

公开(公告)日：2006-05-02

申请号：US10253519

申请日：2002-09-25

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G3/30 ,  G09G3/32 ,  G09G5/00

CPC分类号： G09G3/3233 ,  G09G3/2022 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2320/0276 ,  H01L27/3244

摘要： In a display device which adopts the digital system for expressing gray scales in 2k unit, when gamma correction is performed so as not to generate omissions in the gray scales and display suitable for human visibility is further performed, it has been necessary to output a bit number several times the bit number of perceived luminance scale to be outputted in original intention in the real luminance scale. The invention suppresses the gamma value in gamma correction to such values as low as 2.0 or below (preferably 1.6 to 1.8). In addition, the invention uses a display device allowing 2k gray scale display (n

摘要翻译： 在采用2KHz单位表示灰阶的数字系统的显示装置中，当进行伽马校正时，不会在灰度级中产生遗漏，并进一步执行适合于人的可视性的显示， 必须以真实的亮度等级输出要以原始意图输出的感知亮度级的比特数的几倍的比特数。 本发明将伽马校正中的伽马值抑制在低至2.0或更低（优选1.6至1.8）的值。 另外，本发明还使用允许2K灰阶显示（n

公开(公告)号：US06989805B2

公开(公告)日：2006-01-24

申请号：US09850053

申请日：2001-05-08

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G3/30

CPC分类号： G09G3/3266 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/30 ,  G09G3/3291 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2320/0247 ,  G09G2320/0266 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/32

摘要： To provide an active matrix light emitting device that is capable of clear, multi-gray scale, color display. A pixel portion has a plurality of pixels each having an EL element, a switching TFT and an EL driver TFT. The EL element is composed of a pixel electrode, an opposing electrode, and an EL layer provided between the pixel electrode and the opposing electrode. The electric potential of the opposing electrode and the electric potential of the pixel electrode are controlled to obtain time division gray scale display.

摘要翻译： 提供能够清晰，多灰度，彩色显示的有源矩阵发光器件。 像素部分具有各自具有EL元件的多个像素，开关TFT和EL驱动TFT。 EL元件由像素电极，对置电极和设置在像素电极和对置电极之间的EL层组成。 控制对置电极的电位和像素电极的电位以获得时分灰度显示。

公开(公告)号：US06919834B2

公开(公告)日：2005-07-19

申请号：US10747693

申请日：2003-12-30

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G02F1/133 ,  G09G3/32 ,  G09G3/36 ,  H03M1/08 ,  H03M1/66 ,  H03M1/74

CPC分类号： G09G3/3283 ,  G09G3/3241 ,  H03M1/0863 ,  H03M1/742

摘要： An object of the present invention is to provide a method for shortening a setting time of an analog current to be outputted in a DA converter circuit which reads in digital voltage value data and outputs analog current value data. The present invention can be used for a data driver circuit in an AM type OLED display device. The present invention provides a function of applying a constant voltage exceptionally in the case where data to be inputted takes a predetermined value for a current output DA converter circuit. Consequently, a setting time of an analog current to be outputted for low current data and the like can be shortened.

摘要翻译： 本发明的目的是提供一种缩短在DA转换器电路中输出的模拟电流的设定时间的方法，该DA转换器电路读入数字电压值数据并输出模拟电流值数据。 本发明可用于AM型OLED显示装置中的数据驱动电路。 本发明提供了在输入数据对于电流输出DA转换器电路具有预定值的情况下特别施加恒定电压的功能。 因此，可以缩短针对低电流数据等输出的模拟电流的设定时间。

公开(公告)号：US20050030304A1

公开(公告)日：2005-02-10

申请号：US10939360

申请日：2004-09-14

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G3/32 ,  G09G5/00

CPC分类号： G09G3/325 ,  G09G3/3241 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0408 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2300/0847 ,  G09G2300/0861 ,  G09G2310/061 ,  G09G2320/0233 ,  G09G2320/0252

摘要： An AM-OLED display device is provided in which dispersion in OLED element driver currents is sufficiently suppressed is taken as an objective. The present invention places a plurality of transistors into a parallel connection state during write-in of a data current into pixels, and places the plurality of transistors into a series connection state when light emitting elements emit light. As a result, even if dispersions exist between the plurality of transistors structuring a driver element within the same pixel, the influence of the dispersions can be greatly suppressed, and therefore irregularities in the brightness of emitted light across pixels, of an order such that it causes problems in practical use, can be prevented.

摘要翻译： 提供了一种AM-OLED显示装置，其中以OLED元件驱动电流的分散被充分抑制为目的。 本发明在将数据电流写入像素时将多个晶体管置于并联状态，并且当发光元件发光时将多个晶体管置于串联连接状态。 结果，即使在构成同一像素内的驱动器元件的多个晶体管之间存在分散体，也可以大大地抑制分散体的影响，并且因此可以大大地抑制像素之间的发射光的亮度的不规则性，使得它们 造成实际使用中的问题，可以防止。

公开(公告)号：US06798148B2

公开(公告)日：2004-09-28

申请号：US10375015

申请日：2003-02-28

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G310

CPC分类号： G09G3/325 ,  G09G3/3241 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0408 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2300/0847 ,  G09G2300/0861 ,  G09G2310/061 ,  G09G2320/0233 ,  G09G2320/0252

摘要： An AM-OLED display device is provided in which dispersion in OLED element driver currents is sufficiently suppressed is taken as an objective. The present invention places a plurality of transistors into a parallel connection state during write-in of a data current into pixels, and places the plurality of transistors into a series connection state when light emitting elements emit light. As a result, even if dispersions exist between the plurality of transistors structuring a driver element within the same pixel, the influence of the dispersions can be greatly suppressed, and therefore irregularities in the brightness of emitted light across pixels, of an order such that it causes problems in practical use, can be prevented.

摘要翻译： 提供了一种AM-OLED显示装置，其中以OLED元件驱动电流的分散被充分抑制为目的。 本发明在将数据电流写入像素时将多个晶体管置于并联状态，并且当发光元件发光时将多个晶体管置于串联连接状态。 结果，即使在构成同一像素内的驱动器元件的多个晶体管之间存在分散体，也可以大大地抑制分散体的影响，并且因此可以大大地抑制像素之间的发射光的亮度的不规则性，使得它们 造成实际使用中的问题，可以防止。

公开(公告)号：US06548960B2

公开(公告)日：2003-04-15

申请号：US09747646

申请日：2000-12-22

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G310

CPC分类号： H01L27/1214 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/3233 ,  G09G3/3275 ,  G09G3/3291 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2300/0814 ,  G09G2300/0823 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0216 ,  G09G2310/027 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/043

摘要： To provide an electronic device capable of suppressing a luminous amount of an EL element and realizing a large number of gray-scale levels. The electronic device is characterized in that the luminescence of the EL element is controlled by a pair of EL driver TFTs, one of the pair of EL driver TFTs is controlled by one of the pair of switching TFTs and one of the pair of eliminating TFTs, the other of the pair of EL driver TFTs is controlled by the other of the pair of switching TFTs and the other of the eliminating TFTs, and gray-scale display is performed by controlling the luminescence time of the EL elements.