公开(公告)号：US20090303162A1

公开(公告)日：2009-12-10

申请号：US12477155

申请日：2009-06-03

申请人： Tohru Kohno ,  Hajime Akimoto ,  Naruhiko Kasai ,  Masato Ishii

发明人： Tohru Kohno ,  Hajime Akimoto ,  Naruhiko Kasai ,  Masato Ishii

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3275 ,  G09G2300/043 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2320/045 ,  G09G2320/046

摘要： Provided is an image display device in which deterioration of a self-light-emitting element within a pixel is corrected accurately. A driver transistor provided in each pixel to drive the self-light-emitting element is driven in a saturation region. A voltage detection unit detects a voltage across the self-light-emitting element of each pixel, which is observed when a constant current is supplied to the self-light-emitting element. When the voltage detected by the voltage detection unit exceeds a threshold voltage, one of a reference voltage and a power supply voltage is controlled to keep an operation region of the driver transistor to the saturation region in every one of a plurality of the pixels of the image display device.

摘要翻译： 提供了一种图像显示装置，其中像素内的自发光元件的劣化被精确地校正。 设置在每个像素中驱动自发光元件的驱动晶体管在饱和区域被驱动。 电压检测单元检测在向自发光元件提供恒定电流时观察到的每个像素的自发光元件两端的电压。 当由电压检测单元检测到的电压超过阈值电压时，控制参考电压和电源电压之一，以将驱动晶体管的操作区域保持在多个像素中的每个像素中的饱和区域 图像显示装置。

公开(公告)号：US20110032282A1

公开(公告)日：2011-02-10

申请号：US12849111

申请日：2010-08-03

申请人： Naruhiko Kasai ,  Masato Ishii ,  Tohru Kohno ,  Hajime Akimoto

发明人： Naruhiko Kasai ,  Masato Ishii ,  Tohru Kohno ,  Hajime Akimoto

IPC分类号： G09G5/10 ,  G09G3/30

CPC分类号： G09G3/3291 ,  G09G3/3258 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0205 ,  G09G2310/066 ,  G09G2320/043

摘要： A display device is capable of improving display quality. A data line drive circuit outputs a display signal voltage to data lines in a first period. Each pixel holds the display signal voltage with reference to a voltage determined based on characteristics of the drive transistor. In a second period, a control voltage for controlling the drive transistor is output to the data lines. The drive transistor generates a drive current in accordance with the control voltage and the held signal voltage so as to allow the self-luminous element to emit light. After the second period, a third period is provided in which a voltage signal for setting a control terminal of the drive transistor to have a given correction voltage is output to the data lines. The first period follows the third period.

摘要翻译： 显示装置能够提高显示质量。 数据线驱动电路在第一周期中向数据线输出显示信号电压。 参考基于驱动晶体管的特性确定的电压，每个像素保持显示信号电压。 在第二时段中，用于控制驱动晶体管的控制电压被输出到数据线。 驱动晶体管根据控制电压和保持的信号电压产生驱动电流，以便允许自发光元件发光。 在第二时段之后，提供第三期间，其中将用于将驱动晶体管的控制端子设置为具有给定校正电压的电压信号被输出到数据线。 第一期是第三期。

公开(公告)号：US20100188318A1

公开(公告)日：2010-07-29

申请号：US12691761

申请日：2010-01-22

申请人： Masato Ishii ,  Naruhiko Kasai ,  Tohru Kohno ,  Hajime Akimoto

发明人： Masato Ishii ,  Naruhiko Kasai ,  Tohru Kohno ,  Hajime Akimoto

IPC分类号： G09G3/30

CPC分类号： G09G3/3283 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2330/028

摘要： A display device includes: a display section including a plurality of pixels which emit light in an amount varied depending on an amount of current; signal lines for inputting a display signal voltage to the plurality of pixels; a switch circuit for switching between the signal lines to output signals corresponding to pixel states of the plurality of pixels, the pixel states being obtained through a supply of a detection-use power source to the plurality of pixels; and an A/D conversion section which includes a circuit for changing a reference voltage, and which sequentially detects signals corresponding to pixel states of pixels in each of a plurality of blocks which are obtained by dividing pixels in a horizontal line of the display section. The deteriorated pixels, which is accompanied by an in-plane gradient and fluctuations of the display section, are compensated without increasing a scale of a detection circuit.

摘要翻译： 显示装置包括：显示部，包括发射量根据电流量而变化的光的多个像素; 用于向多个像素输入显示信号电压的信号线; 用于在信号线之间切换以输出与多个像素的像素状态对应的信号的开关电路，通过向多个像素提供检测用电源获得像素状态; 以及A / D转换部分，其包括用于改变参考电压的电路，并且其顺序地检测与通过划分显示部分的水平线中的像素而获得的多个块中的每一个中的像素的像素状态相对应的信号。 在不增加检测电路的规模的情况下补偿伴随有平面内梯度和显示部分的波动的恶化像素。

公开(公告)号：US20090179832A1

公开(公告)日：2009-07-16

申请号：US12318852

申请日：2009-01-09

申请人： Tohru Kohno ,  Hajime Akimoto ,  Naruhiko Kasai ,  Masato Ishii

发明人： Tohru Kohno ,  Hajime Akimoto ,  Naruhiko Kasai ,  Masato Ishii

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0814 ,  G09G2320/0295 ,  G09G2320/041 ,  G09G2320/045 ,  G09G2320/046

摘要： An organic electroluminescence display device is provided having a display section including a plurality of pixels arranged in a matrix; and a detection section for detecting a luminance characteristic of an OLED element in each of the pixels. The detection section includes a first path for allowing a detected characteristic value to pass therethrough and a second path for attenuating the detected characteristic value. A first switch is provided for the first path whereas a second switch is provided for the second path, the second switch being opened when the first switch is closed. The detected characteristic value having passed through any one of the first path and the second path is input to a same analog-to-digital converter to be converted into a digital quantity.

摘要翻译： 提供了一种有机电致发光显示装置，具有：显示部分，包括以矩阵排列的多个像素; 以及检测部，用于检测每个像素中的OLED元件的亮度特性。 检测部分包括用于允许检测到的特征值通过的第一路径和用于衰减检测到的特征值的第二路径。 为第一路径提供第一开关，而为第二路径提供第二开关，当第一开关闭合时，第二开关被打开。 已经通过第一路径和第二路径中的任何一个的检测到的特征值被输入到相同的模拟数字转换器以转换成数字量。

公开(公告)号：US20090141015A1

公开(公告)日：2009-06-04

申请号：US12292727

申请日：2008-11-25

申请人： Naruhiko Kasai ,  Masato Ishii ,  Tohru Kohno ,  Hajime Akimoto

发明人： Naruhiko Kasai ,  Masato Ishii ,  Tohru Kohno ,  Hajime Akimoto

IPC分类号： G06F3/038 ,  G09G3/20

CPC分类号： G09G3/3291 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2310/066

摘要： A shift in the frame of a moving image in an image display device using self-luminous elements is made hard to see.A data line driving circuit 14 is provided with a triangular wave generating circuit 71 for generating a number of types of triangular waves having different phases and waveforms, and a gradation voltage-triangular wave switching circuit 75 for selecting and switching one of the number of types of triangular waves generated by the triangular wave generating circuit 71 for each signal line. One horizontal period is divided into a signal write-in period and a triangular wave period, so that the signal voltage and the triangular wave are outputted during the signal write-in period and the triangular wave period, respectively. Different triangular waves are selected and outputted for each signal line, so that the location of the shift in the outline in a moving image changes for each column.

摘要翻译： 使用自发光元件的图像显示装置中的运动图像的帧的偏移变得难以看出。 数据线驱动电路14设置有三角波发生电路71，用于产生具有不同相位和波形的多种类型的三角波;以及灰度级三角波切换电路75，用于选择和切换多种类型的类型 由三角波产生电路71为每个信号线产生的三角波。 一个水平周期分为信号写入周期和三角波周期，分别在信号写入周期和三角波周期期间输出信号电压和三角波。 为每个信号线选择并输出不同的三角波，使得运动图像中的轮廓中的移位位置对于每列而变化。

公开(公告)号：US09177504B2

公开(公告)日：2015-11-03

申请号：US12353281

申请日：2009-01-14

申请人： Naruhiko Kasai ,  Masato Ishii ,  Tohru Kohno ,  Hajime Akimoto

发明人： Naruhiko Kasai ,  Masato Ishii ,  Tohru Kohno ,  Hajime Akimoto

IPC分类号： G09G3/32 ,  G09G3/34

CPC分类号： G09G3/3233 ,  G09G3/3426 ,  G09G2300/0842 ,  G09G2310/0275 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2330/028

摘要： To provide an image display device having a circuit for solving burning phenomenon without increasing the size of the circuit. An image display device is provided having a display unit formed using display devices, a signal line for inputting a display signal voltage to the display unit, and a display control unit for controlling the display signal voltage, the image display device comprising a detection power source, a switch for causing a current of the detection power source to flow to the display device, a detection circuit for detecting the current, and a detection information storage circuit for storing information, and compensating the display signal voltage, using the information, wherein using a first reference voltage, and current detection is carried out, the detection circuit feeds back the current detected to set a second reference voltage different from the first reference voltage, and carries out current detection.

摘要翻译： 提供具有用于解决燃烧现象的电路的图像显示装置，而不增加电路的尺寸。 提供一种图像显示装置，具有使用显示装置形成的显示单元，用于向显示单元输入显示信号电压的信号线以及用于控制显示信号电压的显示控制单元，该图像显示装置包括检测电源 ，用于使检测电源的电流流向显示装置的开关，用于检测电流的检测电路，以及用于存储信息的检测信息存储电路，以及使用该信息补偿显示信号电压，其中使用 执行第一参考电压和电流检测，检测电路反馈检测到的电流以设置不同于第一参考电压的第二参考电压，并执行电流检测。

公开(公告)号：US08427400B2

公开(公告)日：2013-04-23

申请号：US12477158

申请日：2009-06-03

申请人： Tohru Kohno ,  Hajime Akimoto ,  Naruhiko Kasai ,  Masato Ishii

发明人： Tohru Kohno ,  Hajime Akimoto ,  Naruhiko Kasai ,  Masato Ishii

IPC分类号： G09G3/30

CPC分类号： G09G3/3291 ,  G09G3/3225 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/046

摘要： Provided is an image display device in which deterioration of a self-light-emitting element within a pixel is corrected accurately. A detection unit detects, within a detection period, a difference in characteristics between self-light-emitting elements of adjacent pixels. A first subtraction circuit outputs a differential voltage between a reference voltage and an image voltage to a self-light-emitting element that is determined by the detection unit as a deteriorated element. An amplifier amplifies an output of the first subtraction circuit with a gain [1/{1-(α/100)}]1/2 when a driver transistor is driven in a saturation region. The amplifier amplifies the output of the first subtraction circuit with a gain [1/{1-(α/100)}] when the driver transistor is driven in a linear region. A differential between the reference voltage and an output of the amplifier obtained by a second subtraction circuit is used as a corrected image voltage.

摘要翻译： 提供了一种图像显示装置，其中像素内的自发光元件的劣化被精确地校正。 检测单元在检测周期内检测相邻像素的自发光元件之间的特性差。 第一减法电路将参考电压和图像电压之间的差分电压输出到由检测单元确定的自发光元件作为劣化元件。 当在饱和区域中驱动驱动晶体管时，放大器以增益[1 / {1-（α/ 100）}] 1/2放大第一减法电路的输出。 当驱动晶体管在线性区域驱动时，放大器以增益[1 / {1-（α/ 100）}]放大第一减法电路的输出。 使用由第二减法电路获得的参考电压和放大器的输出之间的差分作为校正图像电压。

公开(公告)号：US08106902B2

公开(公告)日：2012-01-31

申请号：US12135312

申请日：2008-06-09

申请人： Masato Ishii ,  Naruhiko Kasai ,  Tohru Kohno ,  Hajime Akimoto

发明人： Masato Ishii ,  Naruhiko Kasai ,  Tohru Kohno ,  Hajime Akimoto

IPC分类号： G09G3/30

CPC分类号： G09G3/3275 ,  G09G3/3225 ,  G09G2300/0809 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2360/144

摘要： A display device including independent power sources for a display use and a detection use, display elements, switches (21, 22 and 23) for independently connecting the power sources and the individual elements, a circuit (10) for controlling the switches, and a variable amplifier (16) as detection means, which reads a state of each pixel of a display panel section (2), which generates a read result in a controllable shape, and which can change-over a detection result from an external sensor section (3) and an internal detection result through a timing control, so as to convert the detection result into a value corresponding to a subject to-be-detected, whereby detections can be performed with a detection circuit of one loop.

摘要翻译： 一种显示装置，包括用于显示器使用的独立电源和检测用途，用于独立地连接电源和各个元件的显示元件，开关（21,22和23），用于控制开关的电路（10）和 可变放大器（16）作为检测装置，其读取显示面板部分（2）的每个像素的状态，其产生可控形状的读取结果，并且可以从外部传感器部分转换检测结果（ 3）和通过定时控制的内部检测结果，以便将检测结果转换成与被检测对象相对应的值，由此可以用一个环路的检测电路进行检测。

公开(公告)号：US20100033410A1

公开(公告)日：2010-02-11

申请号：US12496783

申请日：2009-07-02

申请人： Masato ISHII ,  Naruhiko Kasai ,  Tohru Kohno ,  Hajime Akimoto

发明人： Masato ISHII ,  Naruhiko Kasai ,  Tohru Kohno ,  Hajime Akimoto

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045

摘要： An image display device comprises a unit which divides one line into a plurality of blocks (blocks A, B, and C) in a horizontal direction and detects in parallel, a unit which collectively detects a plurality of lines (lines A and B) in a vertical direction in parallel. The unit detects a pixel state of a pixel of the block (for example, block A) and a pixel state of the same pixel as an adjacent block (for example, block B), and corrects a variation between the detection result of the block and the detection result of the adjacent block. The unit detects a pixel state of a pixel through the line (for example, line A) and a pixel state of the same pixel through a different line (for example, line B), and corrects a variation between the detection result of the line and the detection result of the different line.

摘要翻译： 图像显示装置包括将水平方向上的一行划分为多个块（块A，B，C）的单元，并行地检测共同检测多条线（A，B线）的单元 垂直方向并行。 该单元检测块的像素（例如，块A）的像素状态和与相邻块（例如，块B）相同的像素的像素状态，并校正块的检测结果之间的变化 和相邻块的检测结果。 该单元通过线（例如，线A）和相同像素的像素状态通过不同的线（例如，线B）检测像素的像素状态，并校正线的检测结果之间的变化 和不同行的检测结果。

公开(公告)号：US20090303163A1

公开(公告)日：2009-12-10

申请号：US12477158

申请日：2009-06-03

申请人： Tohru KOHNO ,  Hajime Akimoto ,  Naruhiko Kasai ,  Masato Ishii

发明人： Tohru KOHNO ,  Hajime Akimoto ,  Naruhiko Kasai ,  Masato Ishii

IPC分类号： G09G3/30

CPC分类号： G09G3/3291 ,  G09G3/3225 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/046

摘要： Provided is an image display device in which deterioration of a self-light-emitting element within a pixel is corrected accurately. A detection unit detects, within a detection period, a difference in characteristics between self-light-emitting elements of adjacent pixels. A first subtraction circuit outputs a differential voltage between a reference voltage and an image voltage to a self-light-emitting element that is determined by the detection unit as a deteriorated element. An amplifier amplifies an output of the first subtraction circuit with a gain [1/{1-(α/100)}]1/2 when a driver transistor is driven in a saturation region. The amplifier amplifies the output of the first subtraction circuit with a gain [1/{1-(α/100)}] when the driver transistor is driven in a linear region. A differential between the reference voltage and an output of the amplifier obtained by a second subtraction circuit is used as a corrected image voltage.

摘要翻译： 提供了一种图像显示装置，其中像素内的自发光元件的劣化被精确地校正。 检测单元在检测周期内检测相邻像素的自发光元件之间的特性差。 第一减法电路将参考电压和图像电压之间的差分电压输出到由检测单元确定的自发光元件作为劣化元件。 当在饱和区域中驱动驱动晶体管时，放大器以增益[1 / {1-（α/ 100）}] 1/2放大第一减法电路的输出。 当驱动晶体管在线性区域驱动时，放大器以增益[1 / {1-（α/ 100）}]放大第一减法电路的输出。 使用由第二减法电路获得的参考电压和放大器的输出之间的差分作为校正图像电压。