公开(公告)号：US08269760B2

公开(公告)日：2012-09-18

申请号：US12626747

申请日：2009-11-27

申请人： Jun Ogura ,  Manabu Takei ,  Shunji Kashiyama

发明人： Jun Ogura ,  Manabu Takei ,  Shunji Kashiyama

IPC分类号： G06F3/038

CPC分类号： G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/04

摘要： A pixel driving device has a voltage impressing circuit that outputs a reference voltage that exceeds a threshold voltage of a drive transistor, a voltage measurement circuit, and a property parameter acquisition circuit that acquires a property parameter related to an electronic property of a pixel. The pixel driving device impresses the reference voltage on the pixel that has a light emitting element and the drive transistor. The voltage measurement circuit acquires voltage of a signal line, as measured voltages, after each of a plurality of the settling times elapsing from the time when the reference voltage is cut. The property parameter acquisition circuit acquires, as property parameters, the threshold voltage and a current amplification factor of drive transistor based on values of a plurality of measured voltages acquired by the voltage measurement circuit.

摘要翻译： 像素驱动装置具有输出超过驱动晶体管的阈值电压的参考电压的电压施加电路，电压测量电路和获取与像素的电子特性相关的特性参数的属性参数获取电路。 像素驱动装置对具有发光元件的像素和驱动晶体管施加参考电压。 在从基准电压切断时起经过的多个稳定时间的每一个之后，电压测量电路获取作为测量电压的信号线的电压。 属性参数获取电路基于由电压测量电路获取的多个测量电压的值作为特性参数获取驱动晶体管的阈值电压和电流放大系数。

公开(公告)号：US08269759B2

公开(公告)日：2012-09-18

申请号：US12626731

申请日：2009-11-27

申请人： Jun Ogura ,  Manabu Takei ,  Shunji Kashiyama

发明人： Jun Ogura ,  Manabu Takei ,  Shunji Kashiyama

IPC分类号： G06F3/038

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/043

摘要： A pixel driving device in which, after a reference voltage exceeds a threshold voltage of a drive transistor is impressed through the signal lines on each pixel equipping a light emitting element and the drive transistor, set the signal lines in a state of high impedance, and acquires a voltage value of one end of the signal lines subsequent to a predetermined settling time elapsing, and acquires the threshold voltage of the drive transistor for each pixel and the current amplification factor of the pixel drive circuit as a first property parameter based on acquired voltage values at the time a plurality of first settling times longer than a predetermined value and acquires an irregularity parameter indicating the irregularity in the current amplification factor based on the value of the first property parameter and the measured voltage value acquired at the time shorter than the predetermined value.

摘要翻译： 一种像素驱动装置，其中，在参考电压超过驱动晶体管的阈值电压的情况下，通过装配发光元件和驱动晶体管的每个像素上的信号线施加脉冲，将信号线设置为高阻抗状态，以及 获取在经过预定的建立时间之后的信号线的一端的电压值，并且基于获取的电压获取每个像素的驱动晶体管的阈值电压和像素驱动电路的当前放大系数作为第一属性参数 在多个第一建立时间比预定值多的时间值，并且基于第一属性参数的值和在比预定时间短的时间获取的测量电压值来获取指示当前放大因子的不规则性的不规则参数 值。

公开(公告)号：US20100134482A1

公开(公告)日：2010-06-03

申请号：US12626756

申请日：2009-11-27

申请人： JUN OGURA ,  Manabu Takei ,  Shunji Kashiyama

发明人： JUN OGURA ,  Manabu Takei ,  Shunji Kashiyama

IPC分类号： G09G5/00 ,  G09G3/30

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0276 ,  G09G2320/043

摘要： A pixel driving device for drive control of pixels, has a image data conversion circuit for generating an original gradation signal by converting an image data, based on a preset conversion property, a signal correction circuit for outputting a corrected gradation signal by adding a correction value acquired based on an electric property parameter of a pixel to the original gradation signal, and a drive signal impressing circuit for impressing a voltage signal corresponding to the corrected gradation signal on one end of a signal line. The original gradation signal has a value that corresponds to a gradation value of the image data and the maximum value of the original gradation signal is set to a value equal to or smaller than a value acquired by subtracting a value corresponding to the correction value from a maximum value in an input range of the drive signal impressing circuit.

摘要翻译： 一种用于像素驱动控制的像素驱动装置，具有图像数据转换电路，用于通过基于预设的转换特性转换图像数据来生成原始灰度信号，该信号校正电路用于通过将校正灰度信号的校正值 基于与原始灰度信号的像素的电特性参数获取的驱动信号施加电路，用于在信号线的一端上施加与校正的灰度信号相对应的电压信号。 原始灰度信号具有对应于图像数据的灰度值的值，并且原始灰度信号的最大值被设置为等于或小于通过从a中减去与校正值相对应的值而获得的值 在驱动信号施加电路的输入范围内的最大值。

公开(公告)号：US20100079423A1

公开(公告)日：2010-04-01

申请号：US12569322

申请日：2009-09-29

申请人： Manabu Takei ,  Jun Ogura ,  Shunji Kashiyama ,  Tsuyoshi Ozaki

发明人： Manabu Takei ,  Jun Ogura ,  Shunji Kashiyama ,  Tsuyoshi Ozaki

IPC分类号： G09G5/00 ,  G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/30 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/043

摘要： A data acquisition circuit sets one of the potential value at one end of a signal line and the value of a current flown thereto when one end of a current path of a drive device is connected to a light emitting device with the other end thereof set to a potential value where no current flows to the light emitting device. Then the circuit causes current to flow via the current path and the signal line and acquires one of the value of the current flown to the signal line and the potential value at the one end of the signal line according to the set value. A correction operation circuit acquires a threshold voltage and a current amplification factor of the drive device based on one of the current and potential values thus acquired as well as on one of the potential and current values thus set.

摘要翻译： 数据采集​​电路将驱动装置的电流路径的一端连接到发光装置的另一端设定为信号线的一端的电位值中的一方和流过的电流值 没有电流流向发光器件的电位值。 然后，电路使电流通过电流路径和信号线流动，并根据设定值获取流向信号线的电流值和信号线一端的电位值之一。 校正操作电路基于如此获取的电流和电位值之一以及由此设置的电势值和电流值之一获取驱动装置的阈值电压和电流放大系数。

公开(公告)号：US08570255B2

公开(公告)日：2013-10-29

申请号：US12749975

申请日：2010-03-30

申请人： Manabu Takei ,  Jun Ogura ,  Shunji Kashiyama ,  Tsuyoshi Ozaki

发明人： Manabu Takei ,  Jun Ogura ,  Shunji Kashiyama ,  Tsuyoshi Ozaki

IPC分类号： G09G3/30

CPC分类号： G09G3/3275 ,  G09G3/3241 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2320/043

摘要： A pixel includes a light emitting element and a driving element connected to the light emitting element. After an initial voltage is applied to one end of a current path of the driving element via the signal line, the pixel driving device acquires the threshold voltage of the driving element based on a voltage value at a terminal of the signal line when the initial voltage is cut off and the relaxation time is elapsed. The voltage-current characteristics of the driving element is acquired based on the voltage value at the terminal of the signal line when the current flows into the current path of the driving element via the signal line. The current gain value of the driving element is acquired based on the threshold voltage of the driving element. The image data is corrected based on the acquired threshold voltage.

摘要翻译： 像素包括发光元件和连接到发光元件的驱动元件。 在通过信号线将初始电压施加到驱动元件的电流路径的一端之后，像素驱动装置基于信号线的端子处的电压值来获取驱动元件的阈值电压，当初始电压 被切断，放松时间过去。 当电流经由信号线流入驱动元件的电流路径时，基于信号线的端子处的电压值来获取驱动元件的电压 - 电流特性。 基于驱动元件的阈值电压获取驱动元件的当前增益值。 基于获取的阈值电压校正图像数据。

公开(公告)号：US08305373B2

公开(公告)日：2012-11-06

申请号：US12626756

申请日：2009-11-27

申请人： Jun Ogura ,  Manabu Takei ,  Shunji Kashiyama

发明人： Jun Ogura ,  Manabu Takei ,  Shunji Kashiyama

IPC分类号： G06F3/038

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0276 ,  G09G2320/043

摘要： A pixel driving device for drive control of pixels, has a image data conversion circuit for generating an original gradation signal by converting an image data, based on a preset conversion property, a signal correction circuit for outputting a corrected gradation signal by adding a correction value acquired based on an electric property parameter of a pixel to the original gradation signal, and a drive signal impressing circuit for impressing a voltage signal corresponding to the corrected gradation signal on one end of a signal line. The original gradation signal has a value that corresponds to a gradation value of the image data and the maximum value of the original gradation signal is set to a value equal to or smaller than a value acquired by subtracting a value corresponding to the correction value from a maximum value in an input range of the drive signal impressing circuit.

摘要翻译： 一种用于像素驱动控制的像素驱动装置，具有图像数据转换电路，用于通过基于预设的转换特性转换图像数据来生成原始灰度信号，该信号校正电路用于通过将校正灰度信号的校正值 基于与原始灰度信号的像素的电特性参数获取的驱动信号施加电路，用于在信号线的一端上施加与校正的灰度信号相对应的电压信号。 原始灰度信号具有与图像数据的灰度值相对应的值，并且原始灰度信号的最大值被设置为等于或小于通过从a中减去与校正值相对应的值而获得的值 在驱动信号施加电路的输入范围内的最大值。

公开(公告)号：US08279211B2

公开(公告)日：2012-10-02

申请号：US12626752

申请日：2009-11-27

申请人： Jun Ogura ,  Manabu Takei ,  Shunji Kashiyama

发明人： Jun Ogura ,  Manabu Takei ,  Shunji Kashiyama

IPC分类号： G06F3/038

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/043

摘要： A light emitting device has a plurality of pixels, each of which includes a drive transistor, a light emitting element and signal lines, a property parameter acquisition circuit which acquires property parameter, a signal correction circuit that generates a corrected gradation signal by correcting the image data based on the property parameter, and a drive signal impressing circuit that impresses a drive signal, generated based on the corrected gradation signal, on the pixel to drive it. The property parameter is constituted of a threshold voltage, a current amplification factor and its irregularity of the drive transistor, and is acquired based on measured voltages of the signal lines after each of a plurality of predetermined settling times elapses from the time when the light emitting device cuts off a voltage subsequent to impressing the voltage on each pixel for a predetermined length of time.

摘要翻译： 发光器件具有多个像素，每个像素包括驱动晶体管，发光元件和信号线，获取特性参数的属性参数获取电路，通过校正图像产生校正灰度信号的信号校正电路 基于属性参数的数据，以及驱动信号施加电路，其将基于校正灰度信号生成的驱动信号压印在像素上以驱动该驱动信号。 属性参数由阈值电压，电流放大系数及其驱动晶体管的不规则度构成，并且是从发光时起经过多个预定建立时间之后经过的信号线的测量电压而获得的 器件在每个像素上施加电压达预定时间之后切断电压。

公开(公告)号：US08339384B2

公开(公告)日：2012-12-25

申请号：US12569322

申请日：2009-09-29

申请人： Manabu Takei ,  Jun Ogura ,  Shunji Kashiyama ,  Tsuyoshi Ozaki

发明人： Manabu Takei ,  Jun Ogura ,  Shunji Kashiyama ,  Tsuyoshi Ozaki

IPC分类号： G06F3/038

CPC分类号： G09G3/3233 ,  G09G3/30 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/043

摘要： A data acquisition circuit sets one of the potential value at one end of a signal line and the value of a current flown thereto when one end of a current path of a drive device is connected to a light emitting device with the other end thereof set to a potential value where no current flows to the light emitting device. Then the circuit causes current to flow via the current path and the signal line and acquires one of the value of the current flown to the signal line and the potential value at the one end of the signal line according to the set value. A correction operation circuit acquires a threshold voltage and a current amplification factor of the drive device based on one of the current and potential values thus acquired as well as on one of the potential and current values thus set.

摘要翻译： 数据采集​​电路将驱动装置的电流路径的一端连接到发光装置的另一端设定为信号线的一端的电位值中的一方和流过的电流值 没有电流流向发光器件的电位值。 然后，电路使电流通过电流路径和信号线流动，并根据设定值获取流向信号线的电流值和信号线一端的电位值之一。 校正操作电路基于如此获取的电流和电位值之一以及由此设置的电势值和电流值之一获取驱动装置的阈值电压和电流放大系数。

公开(公告)号：US20100134475A1

公开(公告)日：2010-06-03

申请号：US12626747

申请日：2009-11-27

申请人： JUN OGURA ,  Manabu Takei ,  Shunji Kashiyama

发明人： JUN OGURA ,  Manabu Takei ,  Shunji Kashiyama

IPC分类号： G06F3/038

CPC分类号： G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/04

摘要： A pixel driving device has a voltage impressing circuit that outputs a reference voltage that exceeds a threshold voltage of a drive transistor, a voltage measurement circuit, and a property parameter acquisition circuit that acquires a property parameter related to an electronic property of a pixel. The pixel driving device impresses the reference voltage on the pixel that has a light emitting element and the drive transistor. The voltage measurement circuit acquires voltage of a signal line, as measured voltages, after each of a plurality of the settling times elapsing from the time when the reference voltage is cut. The property parameter acquisition circuit acquires, as property parameters, the threshold voltage and a current amplification factor of drive transistor based on values of a plurality of measured voltages acquired by the voltage measurement circuit.

摘要翻译： 像素驱动装置具有输出超过驱动晶体管的阈值电压的参考电压的电压施加电路，电压测量电路和获取与像素的电子特性相关的特性参数的属性参数获取电路。 像素驱动装置对具有发光元件的像素和驱动晶体管施加参考电压。 在从基准电压切断时起经过的多个稳定时间的每一个之后，电压测量电路获取作为测量电压的信号线的电压。 属性参数获取电路基于由电压测量电路获取的多个测量电压的值作为特性参数获取驱动晶体管的阈值电压和电流放大系数。

公开(公告)号：US20100134469A1

公开(公告)日：2010-06-03

申请号：US12626752

申请日：2009-11-27

申请人： JUN OGURA ,  Manabu Takei ,  Shunji Kashiyama

发明人： JUN OGURA ,  Manabu Takei ,  Shunji Kashiyama

IPC分类号： G09G5/00

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/043

摘要： A light emitting device has a plurality of pixels, each of which includes a drive transistor, a light emitting element and signal lines, a property parameter acquisition circuit which acquires property parameter, a signal correction circuit that generates a corrected gradation signal by correcting the image data based on the property parameter, and a drive signal impressing circuit that impresses a drive signal, generated based on the corrected gradation signal, on the pixel to drive it. The property parameter is constituted of a threshold voltage, a current amplification factor and its irregularity of the drive transistor, and is acquired based on measured voltages of the signal lines after each of a plurality of predetermined settling times elapses from the time when the light emitting device cuts off a voltage subsequent to impressing the voltage on each pixel for a predetermined length of time.

摘要翻译： 发光器件具有多个像素，每个像素包括驱动晶体管，发光元件和信号线，获取特性参数的属性参数获取电路，通过校正图像产生校正灰度信号的信号校正电路 基于属性参数的数据，以及驱动信号施加电路，其将基于校正灰度信号生成的驱动信号压印在像素上以驱动该驱动信号。 属性参数由阈值电压，电流放大系数及其驱动晶体管的不规则度构成，并且是从发光时起经过多个预定建立时间之后经过的信号线的测量电压而获取的 器件在每个像素上施加电压达预定时间之后切断电压。