公开(公告)号：US07218297B2

公开(公告)日：2007-05-15

申请号：US10894243

申请日：2004-07-20

申请人： Kazutaka Inukai ,  Tomoyuki Iwabuchi

发明人： Kazutaka Inukai ,  Tomoyuki Iwabuchi

IPC分类号： G09G3/32

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。

公开(公告)号：US07071911B2

公开(公告)日：2006-07-04

申请号：US10023143

申请日：2001-12-18

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G3/36 ,  G09G3/10

CPC分类号： G09G3/2074 ,  G09G3/2022 ,  G09G3/2033 ,  G09G3/3258 ,  G09G2300/0465 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2320/0233 ,  G09G2320/0261 ,  H01L27/1214 ,  H01L27/124

摘要： A light emitting device is provided which is capable of displaying a high gradation image while preventing the drive frequency of a source signal line driving circuit from increasing. One pixel has a plurality of sub-pixels each having the same area of effective light emission. Sub-frame periods in each of the sub-pixels are all used to control the gradation of the corresponding pixel. The present light emitting device can operate as follows when, for example, adopting time gradation according to binary code. A sub-frame period for a specific bit is divided into a plurality of sub-frame periods, and a sub-frame period for another bit or a period in which no image is displayed (non-display period) is interspersed between the divided sub-frame periods, not successively starting the divided sub-frame periods. In a non-display period, light emitting, elements in all of the pixels in the pixel portion do not emit light.

公开(公告)号：US07019718B2

公开(公告)日：2006-03-28

申请号：US09908654

申请日：2001-07-20

申请人： Shunpei Yamazaki ,  Jun Koyama ,  Mitsuaki Osame ,  Kazutaka Inukai

发明人： Shunpei Yamazaki ,  Jun Koyama ,  Mitsuaki Osame ,  Kazutaka Inukai

IPC分类号： G09G3/30

CPC分类号： G02F1/13454 ,  G02F1/1339 ,  G02F1/1345 ,  G02F1/13452 ,  H01L27/3276 ,  H01L51/524 ,  H01L51/5246

摘要： A display device is reduced in size. Wiring lines are formed in a portion of a pixel substrate which is covered with a sealing member. The width of each of the wiring lines is set to a width that allows the sealing member on the wiring lines sufficient exposure to ultraviolet rays when the sealing member is irradiated with ultraviolet rays through the wiring lines. Instead of using one wide wiring line, a plurality of wiring lines each having a small width are connected in parallel to one another. The area the wiring lines around a pixel portion and a driving circuit occupy and the area the sealing member occupies are thus reduced in the display device, whereby the display device can be made smaller.

公开(公告)号：US06995520B2

公开(公告)日：2006-02-07

申请号：US10872073

申请日：2004-06-18

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G3/10 ,  G09G5/00 ,  G09G3/30

CPC分类号： G09G3/3291 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/3258 ,  G09G3/3275 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0221 ,  G09G2310/0251 ,  G09G2310/027 ,  G09G2310/061 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2330/021 ,  H01L27/3262

摘要： An active matrix light emitting device which is capable of clear color display of multiple gray scales and a driving method hereof is provided. The light emitting device has a pixel portion, and the pixel portion has a plurality of pixels. Each of the plurality of pixels has an EL element, a first EL driver TFT, a second EL driver TFT, a switching TFT, and an erasure TFT. The first EL driver TFT and the second EL driver TFT are connected in parallel. The method of driving the device includes inputting a digital video signal outputted from a source signal line driver circuit, and forming n write-in periods and (m−1) erasure periods within one frame period, wherein m is an arbitrary number from 2 to n, wherein display and non-display periods are specifically defined, and wherein the plurality of EL elements are selected to emit light or not to emit light in the display periods in accordance with the digital video signal.

摘要翻译： 提供一种能够清晰地显示多个灰度级的有源矩阵发光装置及其驱动方法。 发光装置具有像素部，像素部具有多个像素。 多个像素中的每一个具有EL元件，第一EL驱动器TFT，第二EL驱动器TFT，开关TFT和擦除TFT。 第一EL驱动器TFT和第二EL驱动器TFT并联连接。 驱动该装置的方法包括输入从源极信号线驱动电路输出的数字视频信号，并在一个帧周期内形成n个写入周期和（m-1）个擦除周期，其中m是从2到 n，其中显示和非显示周期被具体限定，并且其中根据数字视频信号在显示周期中选择多个EL元件发光或不发光。

公开(公告)号：US06936846B2

公开(公告)日：2005-08-30

申请号：US09835551

申请日：2001-04-17

申请人： Jun Koyama ,  Kazutaka Inukai

发明人： Jun Koyama ,  Kazutaka Inukai

IPC分类号： G09G3/20 ,  G09G3/30 ,  G09G3/32 ,  H01L27/32 ,  H01L27/105

CPC分类号： G09G3/3266 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/30 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2320/0233 ,  G09G2320/029 ,  G09G2320/043 ,  H01L27/3244 ,  H01L27/3262 ,  H01L27/3265

摘要： To provide a self-luminous device capable of clear, multi-gray scale, color display and an electric machine provided with the same. Gray scale display is attained by a time division driving method in which an EL element (109) provided in a pixel (104) is controlled to emit light or not to emit light by means of time, thereby avoiding being affected by fluctuation in characteristic in current controlling TFTs (108).

摘要翻译： 提供能够清晰，多灰度，彩色显示的自发光装置和具有该自发光装置的电动机。 通过时分驱动方法来实现灰度级显示，其中设置在像素（104）中的EL元件（109）被控制为发光或不发光，从而避免受到时间波动的影响 电流控制TFT（108）。

公开(公告)号：US20050162356A1

公开(公告)日：2005-07-28

申请号：US11059616

申请日：2005-02-16

申请人： Jun Koyama ,  Kazutaka Inukai ,  Shunpei Yamazaki ,  Mai Osada

发明人： Jun Koyama ,  Kazutaka Inukai ,  Shunpei Yamazaki ,  Mai Osada

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

CPC分类号： H01L27/1214 ,  G09G3/2022 ,  G09G3/30 ,  G09G3/3258 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0254 ,  G09G2310/0256 ,  G09G2320/0247 ,  G09G2320/0266 ,  H01L27/156 ,  H04N5/44

摘要： An electro-optical device having a plurality of pixels including a plurality of EL elements, wherein the electro-optical device provides a gray scale display by controlling a period of time at which the plurality of the EL elements emit light in one frame period; the plurality of the EL elements have a first electrode and a second electrode; the first electrode is held at a constant potential; and a potential of the second electrode changes in such a manner that a polarity of an EL driving voltage, which is a difference between the potentials applied to the first and second electrodes, is inverted for each one frame period.

公开(公告)号：US06911663B2

公开(公告)日：2005-06-28

申请号：US10121698

申请日：2002-04-15

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G06F1/10 ,  G09G3/36 ,  H01L21/77 ,  H01L21/84 ,  H01L27/12 ,  H03L7/00 ,  H04L7/00 ,  H01L29/06

CPC分类号： H01L27/1214 ,  G06F1/10 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2310/027 ,  H03L7/00 ,  H04L7/0012

摘要： There is provided a transmission circuit which can certainly perform transmission of data of digital form between two circuits operating in synchronization with two clock signals having the same frequency even if phase shift is generated between the two clock signals. According to a phase difference between a clock signal CK1 and a clock signal CK2, the transmission circuit performs either one of an operation of outputting pre-transmission digital data inputted to the transmission circuit as it is or after it is inverted, and an operation of sampling it in synchronization with the clock signal CK2 and outputting it as it is or after it is inverted.

摘要翻译： 提供了一种传输电路，即使在两个时钟信号之间产生相移也可以在具有相同频率的两个时钟信号同步工作的两个电路之间进行数字形式的数据传输。 根据时钟信号CK 1和时钟信号CK 2之间的相位差，发送电路执行输入到发送电路的预先发送的数字数据按原样输出或反转后的操作， 与时钟信号CK 2同步地对其进行采样的操作，并将其原样输出或反相之后进行输出。

公开(公告)号：US06903731B2

公开(公告)日：2005-06-07

申请号：US09833672

申请日：2001-04-13

申请人： Kazutaka Inukai

发明人： Kazutaka Inukai

IPC分类号： G09G3/20 ,  G09G3/32 ,  H01L27/32 ,  H01L51/00 ,  H01L51/30 ,  G09G5/00

CPC分类号： G09G3/2011 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2310/027 ,  G09G2320/043 ,  H01L27/3244 ,  H01L51/0062 ,  H01L51/0084 ,  H01L51/0085

摘要： The present invention provides an active-matrix electro-optical device allowing clear multi-gray-scale color display. In the electro-optical display according to the present invention, a plurality of pixels included in a pixel portion have a first and a second source signal lines, a first and a second gate signal lines, and a power source supply line. Each of the pixels has a first TFT for switching, a second TFT for switching, a TFT for driving and a light emitting element.

摘要翻译： 本发明提供一种允许清晰的多灰阶彩色显示的有源矩阵电光装置。 在根据本发明的电光显示器中，包括在像素部分中的多个像素具有第一和第二源极信号线，第一和第二栅极信号线以及电源线。 每个像素具有用于切换的第一TFT，用于切换的第二TFT，用于驱动的​​TFT和发光元件。

公开(公告)号：US06680577B1

公开(公告)日：2004-01-20

申请号：US09715528

申请日：2000-11-17

申请人： Kazutaka Inukai ,  Jun Koyama

发明人： Kazutaka Inukai ,  Jun Koyama

IPC分类号： G09G310

CPC分类号： H01L27/1214 ,  G09G3/2011 ,  G09G3/2018 ,  G09G3/2022 ,  G09G3/30 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2300/0842 ,  G09G2300/0847 ,  G09G2300/0866 ,  G09G2310/0283 ,  G09G2320/0233 ,  G09G2320/043 ,  H01L27/1222 ,  H01L27/3244 ,  H01L27/3262 ,  H01L29/78621 ,  H01L29/78624 ,  H01L29/78627 ,  H01L29/78645 ,  H04M1/22

摘要： An EL display device capable of clear, multi-gradation color display, and an electronic device having the EL display device, are provided. Gradation display is performed in accordance with a time division driver method which controls by the amount of time an EL element formed in a pixel emits light, and the amount of time it does not emit light. Influence due to dispersion in the characteristics of electric current TFTs is prevented.

摘要翻译： 提供一种能够进行清晰，多层次的彩色显示的EL显示装置和具有EL显示装置的电子装置。 根据时间驱动器方法进行灰度显示，该方法通过在像素中形成的EL元件发光时间的时间量和不发光的时间量进行控制。 防止了由于电流TFT特性的偏离引起的影响。

公开(公告)号：US06677621B2

公开(公告)日：2004-01-13

申请号：US09862680

申请日：2001-05-21

申请人： Shunpei Yamazaki ,  Kazutaka Inukai

发明人： Shunpei Yamazaki ,  Kazutaka Inukai

IPC分类号： H01L3300

CPC分类号： H01L27/3244 ,  G09G3/2022 ,  G09G3/3258 ,  G09G3/3607 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0251 ,  H01H2219/037 ,  H01L27/1214 ,  H01L51/0077 ,  H01L51/0078 ,  H01L51/0081 ,  H01L51/0084 ,  H01L51/5016

摘要： There is provided a light emitting device which is bright and has low electric power consumption and high reliability. A triplet EL element 203 electrically connected to a current controlling TFT 102 is provided in a pixel portion 201. A luminescent material used for the triplet EL element 203 has a feature that EL is obtained by triplet excitation, and exhibits high luminous efficiency at a low operation voltage as compared with the prior art. Accordingly, the operation is made at the low operation voltage, so that the light emitting device which is bright and has low electric power consumption and high reliability can be obtained.

摘要翻译： 提供了一种发光装置，其发光明亮，电力消耗低，可靠性高。 电连接到电流控制TFT102的三重态EL元件203设置在像素部分201中。用于三重态EL元件203的发光材料具有通过三重态激发获得EL的特征，并且在低电平下表现出高的发光效率 操作电压与现有技术相比。 因此，在低操作电压下进行操作，从而可以获得亮度高，功耗低，可靠性高的发光装置。