公开(公告)号：US20100118017A1

公开(公告)日：2010-05-13

申请号：US12613126

申请日：2009-11-05

申请人： Junichi Yamashita ,  Masakazu Kato ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Masakazu Kato ,  Katsuhide Uchino

IPC分类号： G09G5/00 ,  H05B37/02 ,  G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/2018 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0251 ,  G09G2320/046 ,  H05B33/0896

摘要： An organic electroluminescent light emitting unit driving method includes a process (a) to execute preprocessing, a process (b) to execute threshold voltage cancellation processing, a process (c) to execute writing processing, a process (d) to set a first node to a floating state, and a process (e) to execute a series of processes at least once wherein after driving an organic electroluminescent light emitting unit, a reverse voltage is applied between the anode and cathode electrodes of the organic electroluminescent light emitting unit, with a series of processes (a) through (e) being repeated, with an auxiliary driving process being provided wherein a forward voltage is applied between the anode and cathode electrodes of the organic electroluminescent light emitting unit over a certain period, and with a period between the termination of the auxiliary driving process and the termination of the next process (b) being suppressed to 1 millisecond or less.

摘要翻译： 有机电致发光单元驱动方法包括执行预处理的处理（a），执行阈值电压消除处理的处理（b），执行写入处理的处理（c），设置第一节点 以及至少一次执行一系列处理的处理（e），其中在驱动有机电致发光单元之后，在有机电致发光单元的阳极和阴极之间施加反向电压，与 通过提供辅助驱动方法来重复一系列方法（a）至（e），其中在一段时间内在有机电致发光单元的阳极和阴极之间施加正向电压，并且在 辅助驾驶过程的终止和下一个处理（b）的终止被抑制到1毫秒或更少。

公开(公告)号：US20100259533A1

公开(公告)日：2010-10-14

申请号：US12731750

申请日：2010-03-25

申请人： Junichi Yamashita ,  Masakazu Kato ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Masakazu Kato ,  Katsuhide Uchino

IPC分类号： G06F3/038

CPC分类号： G09G3/3233 ,  G09G2320/0233 ,  G09G2320/046

摘要： A display includes: a pixel circuit array section including a plurality of light-emitting elements and a plurality of pixel circuits; a scanning line drive circuit sequentially selecting the plurality of light-emitting elements and the plurality of the pixel circuits; a signal line drive circuit writing a light emission potential corresponding to a signal potential to a selected pixel circuit; and a control circuit, in which in each frame period, the control circuit outputs a light-off control signal at a lapse of a first period after writing the light emission potential to the selected pixel circuit by the signal line drive circuit, and then the control circuit outputs a light-on control signal at a lapse of a second period, and after that, the control circuit outputs a light-off control signal at a lapse of a third period which is longer than the first period.

摘要翻译： 显示器包括：像素电路阵列部分，包括多个发光元件和多个像素电路; 扫描线驱动电路，顺序地选择多个发光元件和多个像素电路; 信号线驱动电路，将对应于信号电位的发光电位写入所选择的像素电路; 以及控制电路，其中在每个帧周期中，控制电路在通过信号线驱动电路将所述发光电位写入所选择的像素电路之后，经过第一周期而输出熄灭控制信号，然后， 控制电路以经过第二周期的方式输出点亮控制信号，之后控制电路以比第一期间长的第三期间经过输出熄灭控制信号。

公开(公告)号：US09183777B2

公开(公告)日：2015-11-10

申请号：US12613126

申请日：2009-11-05

申请人： Junichi Yamashita ,  Masakazu Kato ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Masakazu Kato ,  Katsuhide Uchino

IPC分类号： G09G5/00 ,  G09G3/32 ,  H05B33/08

CPC分类号： G09G3/3233 ,  G09G3/2018 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0251 ,  G09G2320/046 ,  H05B33/0896

摘要： An organic electroluminescent light emitting unit driving method includes a process (a) to execute preprocessing, a process (b) to execute threshold voltage cancellation processing, a process (c) to execute writing processing, a process (d) to set a first node to a floating state, and a process (e) to execute a series of processes at least once wherein after driving an organic electroluminescent light emitting unit, a reverse voltage is applied between the anode and cathode electrodes of the organic electroluminescent light emitting unit, with a series of processes (a) through (e) being repeated, with an auxiliary driving process being provided wherein a forward voltage is applied between the anode and cathode electrodes of the organic electroluminescent light emitting unit over a certain period, and with a period between the termination of the auxiliary driving process and the termination of the next process (b) being suppressed to 1 millisecond or less.

摘要翻译： 有机电致发光单元驱动方法包括执行预处理的处理（a），执行阈值电压消除处理的处理（b），执行写入处理的处理（c），设置第一节点 以及至少一次执行一系列处理的处理（e），其中在驱动有机电致发光单元之后，在有机电致发光单元的阳极和阴极之间施加反向电压，与 通过提供辅助驱动方法来重复一系列方法（a）至（e），其中在一段时间内在有机电致发光单元的阳极和阴极之间施加正向电压，并且在 辅助驾驶过程的终止和下一个处理（b）的终止被抑制到1毫秒或更少。

公开(公告)号：US09552764B2

公开(公告)日：2017-01-24

申请号：US13481443

申请日：2012-05-25

申请人： Naobumi Toyomura ,  Junichi Yamashita ,  Katsuhide Uchino

发明人： Naobumi Toyomura ,  Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G06F3/038 ,  G09G3/32

CPC分类号： G09G3/3225 ,  G09G2320/0233 ,  G09G2320/045

摘要： A display device includes a display portion, a hold capacitor, a write transistor writing a drive voltage corresponding to a video signal to the hold capacitor, a drive transistor driving the display portion in accordance with the drive voltage written to the hold capacitor, and a pulse width adjusting portion adjusting a width of a pulse signal causing a drive pulse used to drive at least one of the write transistor and the drive transistor so as to correspond to an environmental change.

摘要翻译： 显示装置包括显示部分，保持电容器，将与视频信号对应的驱动电压写入保持电容器的写入晶体管;驱动晶体管，其根据写入保持电容器的驱动电压驱动显示部分;以及 脉冲宽度调节部分，调节脉冲信号的宽度，引起用于驱动写入晶体管和驱动晶体管中的至少一个的驱动脉冲，以便对应于环境变化。

公开(公告)号：US09041628B2

公开(公告)日：2015-05-26

申请号：US13588495

申请日：2012-08-17

申请人： Junichi Yamashita ,  Yusuke Onoyama ,  Tetsuo Minami ,  Naobumi Toyomura ,  Tetsuro Yamamoto ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Yusuke Onoyama ,  Tetsuo Minami ,  Naobumi Toyomura ,  Tetsuro Yamamoto ,  Katsuhide Uchino

IPC分类号： H01L27/32 ,  G09G3/32 ,  H01L27/06

CPC分类号： G09G3/3233 ,  G09G3/30 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  H01L27/0688 ,  H01L27/3225 ,  H01L27/3244 ,  H01L27/3248 ,  H01L27/3255 ,  H01L27/3262 ,  H01L27/3276

摘要： A display device includes: a plurality of light-emitting elements, each light-emitting element having a light-emitting unit and a driving circuit for driving the light-emitting unit. The driving circuit at least includes (A) a drive transistor having source/drain regions, a channel forming region, and a gate electrode, (B) a video signal write transistor having source/drain regions, a channel forming region, and a gate electrode, and (C) a capacitive unit. In the drive transistor, (A-1) one of the source/drain regions is connected to the corresponding current supply line, (A-2) the other region of the source/drain regions is connected to the light-emitting unit and connected to one end of the capacitive unit, and forms a second node, and (A-3) the gate electrode is connected to the other region of the source/drain regions of the video signal write transistor and connected to the other end of the capacitive unit, and forms a first node.

摘要翻译： 显示装置包括：多个发光元件，每个发光元件具有发光单元和用于驱动发光单元的驱动电路。 驱动电路至少包括（A）具有源极/漏极区域的驱动晶体管，沟道形成区域和栅极电极，（B）具有源极/漏极区域的视频信号写入晶体管，沟道形成区域和栅极 电极，（C）电容单元。 在驱动晶体管中，（A-1）源极/漏极区域之一连接到相应的电流源线（A-2），源极/漏极区域的另一个区域连接到发光单元并连接 并且形成第二节点，并且（A-3）栅电极连接到视频信号写入晶体管的源极/漏极区域的另一个区域，并连接到电容器的另一端 单元，并形成第一个节点。

公开(公告)号：US08791888B2

公开(公告)日：2014-07-29

申请号：US13618974

申请日：2012-09-14

申请人： Katsuhide Uchino ,  Junichi Yamashita

发明人： Katsuhide Uchino ,  Junichi Yamashita

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/02 ,  G09G2310/06 ,  G09G2320/043 ,  G09G2330/028

摘要： A pixel circuit includes a compensating circuit that detects a decrease in the driving current from an output node side of a drive transistor and feeds back detection results to an input node side of the drive transistor to compensate for a decrease in the driving current, which decrease is attendant on a secular change of the drive transistor.

摘要翻译： 像素电路包括补偿电路，其检测来自驱动晶体管的输出节点侧的驱动电流的降低，并将检测结果反馈到驱动晶体管的输入节点侧，以补偿驱动电流的降低，这降低 伴随着驱动晶体管的长期变化。

公开(公告)号：US08599178B2

公开(公告)日：2013-12-03

申请号：US13064753

申请日：2011-04-13

申请人： Katsuhide Uchino ,  Tetsuro Yamamoto ,  Junichi Yamashita

发明人： Katsuhide Uchino ,  Tetsuro Yamamoto ,  Junichi Yamashita

IPC分类号： G09G3/32

CPC分类号： G09G3/30 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0861

摘要： A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels.

公开(公告)号：US08564508B2

公开(公告)日：2013-10-22

申请号：US13619006

申请日：2012-09-14

申请人： Katsuhide Uchino ,  Junichi Yamashita

发明人： Katsuhide Uchino ,  Junichi Yamashita

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/02 ,  G09G2310/06 ,  G09G2320/043 ,  G09G2330/028

摘要： A display device including pixel circuits arranged in a form of a matrix, with the pixel circuits respectively including an electro-optical element, a drive transistor, a sampling transistor, and a capacitive element. The sampling transistor samples a signal from the signal line in the capacitive element. The drive transistor and the electro-optical element are arranged in series to form a current path between a power supply line and a ground line. The drive transistor is configured to control a driving current through the current path according to a signal potential stored in the capacitive element. Compensation for driving current dependence on a characteristic of the drive transistor is provided, with such compensation being based upon a current through the current path occurring before a light emission period.

摘要翻译： 一种显示装置，包括以矩阵形式布置的像素电路，像素电路分别包括电光元件，驱动晶体管，采样晶体管和电容元件。 采样晶体管从电容元件中的信号线采样信号。 驱动晶体管和电光元件串联布置以形成电源线和接地线之间的电流路径。 驱动晶体管被配置为根据存储在电容元件中的信号电位来控制通过电流路径的驱动电流。 提供用于驱动电流对驱动晶体管的特性的依赖性的补偿，其中这种补偿基于在发光周期之前发生的电流路径的电流。

公开(公告)号：US08508445B2

公开(公告)日：2013-08-13

申请号：US12461151

申请日：2009-08-03

申请人： Junichi Yamashita ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/30 ,  G09G3/10

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2320/043

摘要： A display device includes: a pixel array including pixel circuits arranged in a matrix state, in which each pixel circuit has a light emitting element, a drive transistor, and a storage capacitor storing a threshold voltage of the drive transistor and an inputted signal value; a threshold correction operation means for performing a threshold correction operation plural times, which allows the storage capacitor to store the threshold voltage of the drive transistor before giving the signal value to the storage capacitor; and a cut-off control means for allowing the drive transistor to be cut off in at least one after-correction period and for allowing the drive transistor not to be cut off in at least one after-correction period in plural after-correction periods which are periods after the plural threshold correction operation periods.

摘要翻译： 显示装置包括：像素阵列，包括以矩阵状态布置的像素电路，其中每个像素电路具有发光元件，驱动晶体管和存储驱动晶体管的阈值电压的存储电容器和输入的信号值; 阈值校正操作装置，用于多次执行阈值校正操作，其允许存储电容器在将信号值提供给存储电容器之前存储驱动晶体管的阈值电压; 以及截止控制装置，用于允许驱动晶体管在至少一个后校正周期中被切断，并且用于允许驱动晶体管在多个后校正周期中的至少一个后校正周期中不被切断， 是在多个阈值校正操作期间之后的周期。

公开(公告)号：US08493294B2

公开(公告)日：2013-07-23

申请号：US12857992

申请日：2010-08-17

申请人： Junichi Yamashita ,  Katsuhide Uchino

发明人： Junichi Yamashita ,  Katsuhide Uchino

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/046 ,  G09G2360/145 ,  G09G2360/16

摘要： A display device includes: a dummy pixel provided on a display panel; a reflection film provided on a light-emitting-surface side of the display panel for reflecting light emitted from the dummy pixel; a photodetector provided on an opposite side of the display panel from the light-emitting surface for detecting the light emitted from the dummy pixel and reflected from the reflection film; and a correction circuit for correcting, based on the results of detection by the photodetector, the luminance of effective pixels that contribute to image display.

摘要翻译： 显示装置包括：设置在显示面板上的虚拟像素; 反射膜，设置在所述显示面板的发光面侧，用于反射从所述虚拟像素发出的光; 光检测器，其设置在显示面板的与发光面相反的一侧，用于检测从虚拟像素发出的光并从反射膜反射; 以及校正电路，用于基于光电检测器的检测结果来校正有助于图像显示的有效像素的亮度。