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公开(公告)号：US20100085349A1
公开(公告)日：2010-04-08
申请号：US12571536
申请日：2009-10-01
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： G09G5/00
CPC分类号： G09G3/3275 , G09G3/3685 , G09G2300/0819 , G09G2300/0842 , G09G2300/088 , G09G2310/0262 , G09G2310/066 , G09G2320/0223 , G09G2320/043 , G09G2360/18
摘要： Provided is a display device capable of freely setting correction based on a state of a luminance gradient in a self-emission display device for eliminating the luminance gradient. The display device includes: a data line drive circuit for outputting emission control signals for controlling light emission of display elements during a retrace period during which display signal voltages are not output; and an emission power supply circuit for supplying power supply voltages for the light emission of the display elements to power supply lines from at least one of external sides of a display region corresponding to a group including the display elements. The data line drive circuit generates and outputs the emission control signals different among data lines.
摘要翻译： 提供一种能够根据自发光显示装置中的亮度梯度的状态自由地设定校正以消除亮度梯度的显示装置。 显示装置包括：数据线驱动电路，用于在不输出显示信号电压的回扫期间输出用于控制显示元件的发光的发射控制信号; 以及发射电源电路，用于将显示元件的发光的电源电压从对应于包括显示元件的组的显示区域的至少一个的外侧提供给电源线。 数据线驱动电路产生并输出不同数据线之间的发射控制信号。
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公开(公告)号：US07633496B2
公开(公告)日：2009-12-15
申请号：US10989299
申请日：2004-11-17
IPC分类号： G09G5/00
CPC分类号： G09G3/3258 , G09G3/2011 , G09G3/3266 , G09G3/3275 , G09G2300/0809 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0251 , G09G2320/0257 , G09G2320/0261 , G09G2360/18
摘要： A display control circuit and a display unit are provided. The display control circuit generates a sweep signal that is at a fixed voltage level for an arbitrary period. The display unit compares the magnitude of a signal voltage that is written by a data line drive circuit in accordance with display data and the magnitude of the sweep signal generated by the display control circuit, and exercises illumination/nonillumination control in accordance with the comparison result.
摘要翻译： 提供显示控制电路和显示单元。 显示控制电路产生在任意时段处于固定电压电平的扫描信号。 显示单元根据显示数据和由显示控制电路产生的扫描信号的大小来比较由数据线驱动电路写入的信号电压的大小，并根据比较结果进行照明/非照明控制 。
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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。
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公开(公告)号：US20090146928A1
公开(公告)日：2009-06-11
申请号：US12331536
申请日：2008-12-10
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0262 , G09G2310/066 , G09G2320/043 , G09G2320/045
摘要： Before a reset operation in which a threshold voltage Vth of an organic light emitting diode (OLED) driving thin film transistor (TFT) is compensated is performed by a first reset TFT switch, a second reset TFT switch is turned on to apply a reset reference potential to a gate of the OLED driving TFT. Accordingly, an operation point of the OLED driving TFT can be stably set even when a power supply is low. In the reset operation, it is unnecessary to close a lighting TFT switch and cause an OLED element to emit light, whereby constant can be improved.
摘要翻译： 在通过第一复位TFT开关执行驱动薄膜晶体管（TFT）的有机发光二极管（OLED）的阈值电压Vth被补偿的复位操作之前，第二复位TFT开关导通以施加复位基准 OLED驱动TFT的栅极的潜力。 因此，即使电源低，OLED驱动TFT的操作点也能够稳定地设定。 在复位操作中，不需要关闭点亮TFT开关并使OLED元件发光，从而可以提高常数。
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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
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。
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公开(公告)号：US20090109149A1
公开(公告)日：2009-04-30
申请号：US12289669
申请日：2008-10-31
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0417 , G09G2300/0842 , G09G2300/0861 , G09G2310/0259 , G09G2310/066
摘要： An image display device having a plurality of pixel, a plurality of signal lines for inputting an image voltage to each of the plurality of pixels, and a pixel selecting unit for selecting from the plurality of pixels a pixel into which the image voltage is to be written, in which each of the pixels has a light emitting device of a current driving-type, a driving transistor connected between a power line and the light emitting device, and a capacitance device having one end connected to a gate electrode of the driving transistor, the image voltage is input to the other end of the capacitance device during the writing period, an inclined wave voltage which changes a voltage level thereof according to time is input to the other end of the capacitance device during a light emission period following the writing period.
摘要翻译： 具有多个像素的图像显示装置，用于向多个像素中的每一个输入图像电压的多个信号线;以及像素选择单元，用于从多个像素中选择要成为图像电压的像素 写入，其中每个像素具有电流驱动型的发光器件，连接在电源线和发光器件之间的驱动晶体管，以及一端连接到驱动晶体管的栅电极的电容器件 在写入期间，图像电压被输入到电容元件的另一端，在写入后的发光期间，将电压电平根据时间变化的倾斜波电压输入到电容元件的另一端 期。
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公开(公告)号：US20080258626A1
公开(公告)日：2008-10-23
申请号：US12078687
申请日：2008-04-03
申请人： Masamitsu Furuie , Hajime Akimoto
发明人： Masamitsu Furuie , Hajime Akimoto
IPC分类号： H01J7/44
CPC分类号： H01L27/326 , G09G3/3233 , G09G2300/0465 , G09G2300/0842 , G09G2310/0224 , G09G2330/02
摘要： The present invention allows an organic EL display device to perform display with high definition by reducing an area of each pixel forming a display region of the display device. A drive TFT for driving an organic EL element, a storage capacitance connected with a gate of the drive TFT, and a switching TFT connected to a scanning line are used in common by pixels arranged adjacent to each other in the lateral direction and hence, areas occupied by these circuit elements per one pixel can be reduced whereby the pixel can be made small. Further, a data line for supplying a video signal and a power source line for supplying an electric current to the organic EL elements can be used in common by the pixels arranged adjacent to each other and hence, the number of data lines and the number of power source lines can be halved thus reducing an area of the pixel. Due to such a constitution, the present invention acquires an organic EL display device capable of performing display with high definition.
摘要翻译： 本发明允许有机EL显示装置通过减少形成显示装置的显示区域的每个像素的面积来进行高清晰度的显示。 用于驱动有机EL元件的驱动TFT，与驱动TFT的栅极连接的存储电容和连接到扫描线的开关TFT被共同地用于沿横向彼此相邻布置的像素，因此， 可以减少由每个像素的这些电路元件占据的像素，从而可以使像素小。 此外，用于提供视频信号的数据线和用于向有机EL元件提供电流的电源线可以被彼此相邻布置的像素共同使用，因此数据线的数量和数量 电源线可以减半，从而减少像素的面积。 由于这样的结构，本发明获得能够以高清晰度进行显示的有机EL显示装置。
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公开(公告)号：US20080218499A1
公开(公告)日：2008-09-11
申请号：US12073219
申请日：2008-03-03
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0218 , G09G2320/0252 , G09G2320/0285 , G09G2320/029 , G09G2320/043
摘要： To shorten the measuring time of the characteristics of light emission of OLED elements for feedback to image data for image display in an organic EL display device. Pixels that emit red lights, pixels that emit green lights, and pixels that emit blue lights are arranged on a screen in a matrix manner. A detection system is provided on the upper side of the screen. A detection line extending from the detection system is coupled to the respective pixels through analog switches and digital switches controlled by switch controlling lines. A detection scanning circuit is provided on the right side of the screen. Detection switch controlling lines extend from the detection scanning circuit. By appropriately selecting the analog switches, the switch controlling lines, and the detection switch controlling lines, the voltage-current characteristics of plural pixels are measured at the same time.
摘要翻译： 缩短OLED元件的发光特性的测量时间，以反馈到有机EL显示装置中用于图像显示的图像数据。 发出红灯的像素，发出绿色光的像素和发出蓝光的像素以矩阵方式排列在屏幕上。 在屏幕的上侧设置检测系统。 从检测系统延伸的检测线通过由开关控制线控制的模拟开关和数字开关耦合到各个像素。 检测扫描电路设置在屏幕的右侧。 检测开关控制线从检测扫描电路延伸。 通过适当选择模拟开关，开关控制线和检测开关控制线，同时测量多个像素的电压 - 电流特性。
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公开(公告)号：US20080218453A1
公开(公告)日：2008-09-11
申请号：US12068524
申请日：2008-02-07
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0809 , G09G2320/045 , G09G2320/046 , G09G2320/0673
摘要： In an organic EL display, correction is made for a difference in screen luminance between the case of measuring characteristics of OLED elements, and the case of not measuring the characteristics of the OLED elements. A data line for feeding image data items, and a detection line for measuring the characteristics of the OLED elements are connected to respective pixels. Detection of the characteristics of the OLED elements is executed by utilizing a specified period of a frame period. Because an image-displaying period is limited in a frame where measurement of the characteristics of the OLED element 11 is executed, the luminance undergoes deterioration. In order to prevent the deterioration of the luminance, an analog-to-digital converter ADC causes γ characteristic of the OLED elements in the frame where measurement of the characteristics of 11 is executed to be varied by the agency of a signal from a timing controller Tcon to the analog-to-digital converter ADC, thereby increasing luminance intensity of light emission of the OLED elements.
摘要翻译： 在有机EL显示器中，对于OLED元件的测量特性的情况和不测量OLED元件的特性的情况之间的屏幕亮度差进行校正。 用于馈送图像数据的数据线和用于测量OLED元件的特性的检测线连接到各个像素。 通过利用帧周期的指定周期来执行OLED元件的特性的检测。 由于在执行OLED元件11的特性的测量的框架中限制图像显示周期，因此亮度劣化。 为了防止亮度的劣化，模数转换器ADC引起在执行11的特性测量的OLED元件的伽马特性通过来自定时控制器的信号的代理来改变 Tcon到模数转换器ADC，从而增加OLED元件的发光亮度强度。
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公开(公告)号：US20080170011A1
公开(公告)日：2008-07-17
申请号：US12005317
申请日：2007-12-27
申请人： Tohru Kohno , Mitsuhide Miyamoto , Hajime Akimoto
发明人： Tohru Kohno , Mitsuhide Miyamoto , Hajime Akimoto
IPC分类号： G09G3/30
CPC分类号： G09G3/3291 , G09G3/3233 , G09G3/3266 , G09G2300/0819 , G09G2300/0861 , G09G2310/0216 , G09G2310/0251 , G09G2310/0297 , G09G2310/066 , G09G2320/043
摘要： In organic EL display apparatuses, when the reset operating time required for compensating variations in the OLED drive TFT voltage threshold is too short then fluctuations in the threshold voltage Vth cannot be corrected and an accurate gray scale is impossible. A precharge voltage is supplied from the precharge TFT switch prior to the reset TFT switch and the light TFT switch resetting the Vth of the OLED driver TFT, in order to apply a specified voltage value to the gate voltage of the OLED driver TFT prior to reset. The voltage potential on the gate of the OLED driver TFT prior to reset is therefore no longer an undetermined voltage potential so variations in the gate voltage after reset are suppressed and variations in the gray scale are suppressed.
摘要翻译： 在有机EL显示装置中，当用于补偿OLED驱动TFT电压阈值的变化所需的复位操作时间太短时，不能校正阈值电压Vth的波动，并且不可能准确的灰度级。 在复位TFT开关之前，从预充电TFT开关提供预充电电压，并且TFT TFT开关重新设置OLED驱动器TFT的Vth，以便在复位之前对OLED驱动器TFT的栅极电压施加指定的电压值 。 因此，在复位之前OLED驱动器TFT的栅极上的电压电位不再是未确定的电压电位，因此抑制了复位之后的栅极电压的变化，并且抑制了灰度级的变化。
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