公开(公告)号：US20100327955A1

公开(公告)日：2010-12-30

申请号：US12794939

申请日：2010-06-07

申请人： Atsushi Umezaki

发明人： Atsushi Umezaki

IPC分类号： H03K17/00

CPC分类号： G09G3/3648 ,  G09G3/20 ,  G09G3/3677 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2320/043 ,  G09G2352/00 ,  H03K17/04

摘要： It is an object to provide a display device which can favorably display a image without delayed or distorted signals. The display device includes a first gate driver and a second gate driver. The first gate driver and the second gate driver each include a plurality of flip flop circuits and a plurality of transfer signal generation circuits. Both the flip flop circuit and the transfer signal generation circuit are circuits which output a signal inputted to a first input terminal with a half clock cycle delay. In addition, an output terminal of the transfer signal generation circuit is directly connected to a first input terminal of the flip flop circuit in the next stage. Therefore, delay and distortion of the signal which is inputted from the transfer signal generation circuit to the flip flop circuit can be reduced.

摘要翻译： 本发明的目的是提供一种可以有利地显示图像而不延迟或失真的信号的显示装置。 显示装置包括第一栅极驱动器和第二栅极驱动器。 第一栅极驱动器和第二栅极驱动器各自包括多个触发器电路和多个传输信号发生电路。 触发电路和传输信号发生电路都是以半个时钟周期延迟输出输入到第一输入端的信号的电路。 此外，传送信号发生电路的输出端子在下一级直接连接到触发电路的第一输入端。 因此，可以减少从传送信号发生电路向触发电路输入的信号的延迟和失真。

公开(公告)号：US20100182226A1

公开(公告)日：2010-07-22

申请号：US12685439

申请日：2010-01-11

申请人： Atsushi Umezaki

发明人： Atsushi Umezaki

IPC分类号： G09G3/36 ,  G02F1/1368

CPC分类号： G11C19/28 ,  G02F1/13454 ,  G02F1/136286 ,  G02F2001/13606 ,  G02F2201/124 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2300/0417 ,  G09G2310/0286 ,  H01L23/528 ,  H01L27/1214 ,  H01L29/786 ,  H01L29/7869 ,  H01L2924/0002 ,  H01L2924/00

摘要： A driver circuit includes first to third transistors, a first circuit, and a second circuit. In the first transistor, a first terminal is electrically connected to a second wiring, a second terminal is electrically connected to a first wiring, and a gate is electrically connected to the second circuit and a first terminal of the third transistor. In the second transistor, a first terminal is electrically connected to the first wiring, a second terminal is electrically connected to a sixth wiring, a gate is electrically connected to the first circuit and a gate of the third transistor. A second terminal of the third transistor is electrically connected to the sixth wiring. The first circuit is electrically connected to a third wiring, a fourth wiring, a fifth wiring, and the sixth wiring. The second circuit is electrically connected to the first wiring, the second wiring, and the sixth wiring.

摘要翻译： 驱动器电路包括第一至第三晶体管，第一电路和第二电路。 在第一晶体管中，第一端子电连接到第二布线，第二端子电连接到第一布线，栅极电连接到第二电路和第三晶体管的第一端子。 在第二晶体管中，第一端子电连接到第一布线，第二端子电连接到第六布线，栅极电连接到第一电路和第三晶体管的栅极。 第三晶体管的第二端子电连接到第六布线。 第一电路电连接到第三布线，第四布线，第五布线和第六布线。 第二电路电连接到第一布线，第二布线和第六布线。

公开(公告)号：US20080246716A1

公开(公告)日：2008-10-09

申请号：US12051992

申请日：2008-03-20

申请人： Hiroyuki Miyake ,  Atsushi Umezaki

发明人： Hiroyuki Miyake ,  Atsushi Umezaki

IPC分类号： G09G3/36

CPC分类号： G09G3/3677 ,  G09G2300/0417 ,  G09G2310/0267 ,  G09G2320/043 ,  G09G2320/048

摘要： To provide a display device which can ensure high reliability of a driver circuit even when a threshold voltage of a TFT shifts. The display device includes a power supply control circuit which can apply a forward bias voltage or a reverse bias voltage to a gate of a transistor included in an output circuit, a monitor transistor which is formed to monitor the amount of change of a threshold voltage of the transistor included in the output circuit, and a threshold control circuit which controls the power supply control circuit so as to apply the reverse bias voltage to the gate of the transistor in order to compensate the threshold voltage of the transistor included in the output circuit.

摘要翻译： 提供即使当TFT的阈值电压移动时也能够确保驱动电路的高可靠性的显示装置。 显示装置包括电源控制电路，其可以向包括在输出电路中的晶体管的栅极施加正向偏置电压或反向偏置电压，监视晶体管形成为监视阈值电压的变化量 包括在输出电路中的晶体管，以及阈值控制电路，其控制电源控制电路以将反向偏置电压施加到晶体管的栅极，以便补偿包括在输出电路中的晶体管的阈值电压。

公开(公告)号：US20060170635A1

公开(公告)日：2006-08-03

申请号：US11338504

申请日：2006-01-24

申请人： Atsushi Umezaki

发明人： Atsushi Umezaki

IPC分类号： G09G3/36

CPC分类号： G09G3/3233 ,  G09G3/3258 ,  G09G2300/0842 ,  G09G2320/0238 ,  G09G2330/02 ,  G09G2330/10 ,  H01L27/3244

摘要： A display device with high productivity and high display quality and a driving method thereof are provided by suppressing generation of a luminescent spot. A first switching element and a second switching element each of which has a different polarity are disposed in series between a power source line for supplying power to a light-emitting element and a power source line having a potential which is equal to or lower than a threshold voltage of the light-emitting element; one electrode of the light-emitting element is connected to a connecting node of the two switching elements; and in the case where a potential which is equal to or higher than the threshold voltage of the light-emitting element is applied to the light-emitting element regardless of an on/off state of the first switching element, a potential applied to the light-emitting element is set to be lower than the threshold voltage by turning the second switching element on. Thus, generation of a luminescent spot is prevented.

摘要翻译： 通过抑制发光点的产生，提供了高生产率和高显示质量的显示装置及其驱动方法。 具有不同极性的第一开关元件和第二开关元件串联地布置在用于向发光元件供电的电源线和具有等于或低于其的电位的电源线 发光元件的阈值电压; 发光元件的一个电极连接到两个开关元件的连接节点; 并且在发光元件的阈值电压以上的电位与第一开关元件的接通/断开状态无关地施加到发光元件的情况下，施加到光的电位 通过打开第二开关元件将发光元件设定为低于阈值电压。 因此，防止产生发光点。

公开(公告)号：US20060164347A1

公开(公告)日：2006-07-27

申请号：US11287472

申请日：2005-11-28

申请人： Atsushi Umezaki

发明人： Atsushi Umezaki

IPC分类号： G09G3/30

CPC分类号： G09G3/3258 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0876 ,  G09G2310/0251 ,  G09G2320/043 ,  G09G2330/021

摘要： [Summary ][Problem] It is an object to provide a display device having a simple structure of a driver circuit for inputting a video signal to a pixel, high display quality of the intermediate gradation and low power consumption, and a driving method thereof. [Solving Means] Each of a plurality of pixels has a light emitting element and a capacitor. One electrode of the light emitting element is connected to the other electrode of the capacitor and one electrode of the light emitting element is applied to a voltage which is equal to or higher than a threshold voltage of the light emitting element and a potential of one electrode of the capacitor is changed. Therefore, a potential of one electrode of the light emitting element is changed and the light emitting element emits light.

摘要翻译： 发明内容本发明的目的是提供一种显示装置，其具有用于向像素输入视频信号的驱动电路的简单结构，中间灰度的高显示质量和低功耗，以及其驱动方法。 [解决方案]多个像素中的每一个具有发光元件和电容器。 发光元件的一个电极连接到电容器的另一个电极，并且发光元件的一个电极被施加到等于或高于发光元件的阈值电压的电压和一个电极的电位 的电容变化。 因此，发光元件的一个电极的电位改变，并且发光元件发光。