-
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。
-
公开(公告)号：US07236422B2
公开(公告)日：2007-06-26
申请号：US11274201
申请日：2005-11-16
IPC分类号： G11C8/00
CPC分类号： G09G3/20 , G09G3/3291 , G09G3/3688 , G09G2300/0408 , G09G2310/027 , G09G2310/0297 , G09G2310/08
摘要： A data driver circuit which enables the square measure of the non-display areas of image display devices to be reduced is to be provided. The driver circuit has two DA converters which convert the digital signals, in accordance with more significant bits thereof, into analog voltages; a voltage divider which divides the output voltages of the two DA converters in accordance with less significant bits of the signals; and a shift register which generates trigger signals in synchronism with the digital signals. The voltage divider, arranged in the gap between the two DA converters, comprises memory elements arrayed in two-dimensional matrixes, and a plurality of resistive wirings. The memory elements store decoded signals generated by the decoders in synchronism with the trigger signals, and selectively supply, in accordance with the decoded signals stored by the memory elements, the divided voltages which derive from the two DA converters and are generated on the resistive wirings.
摘要翻译： 提供能够减少图像显示装置的非显示区域的平方测量的数据驱动器电路。 驱动器电路具有两个DA转换器，它们将数字信号根据更高有效位转换为模拟电压; 分压器，其根据信号的较低有效位分割两个DA转换器的输出电压; 以及与数字信号同步产生触发信号的移位寄存器。 布置在两个DA转换器之间的间隙中的分压器包括以二维矩阵排列的存储元件和多个电阻布线。 存储器元件与触发信号同步地存储由解码器产生的解码信号，并且根据由存储器元件存储的解码信号选择性地提供从两个DA转换器导出并在电阻布线上产生的分压 。
-
公开(公告)号：US20060120203A1
公开(公告)日：2006-06-08
申请号：US11274201
申请日：2005-11-16
IPC分类号： G11C8/00
CPC分类号： G09G3/20 , G09G3/3291 , G09G3/3688 , G09G2300/0408 , G09G2310/027 , G09G2310/0297 , G09G2310/08
摘要： A data driver circuit which enables the square measure of the non-display areas of image display devices to be reduced is to be provided. The driver circuit has two DA converters which convert the digital signals, in accordance with more significant bits thereof, into analog voltages; a voltage divider which divides the output voltages of the two DA converters in accordance with less significant bits of the signals; and a shift register which generates trigger signals in synchronism with the digital signals. The voltage divider, arranged in the gap between the two DA converters, comprises memory elements arrayed in two-dimensional matrixes, and a plurality of resistive wirings. The memory elements store decoded signals generated by the decoders in synchronism with the trigger signals, and selectively supply, in accordance with the decoded signals stored by the memory elements, the divided voltages which derive from the two DA converters and are generated on the resistive wirings.
摘要翻译： 提供能够减少图像显示装置的非显示区域的平方测量的数据驱动器电路。 驱动器电路具有两个DA转换器，它们将数字信号根据更高有效位转换为模拟电压; 分压器，其根据信号的较低有效位分割两个DA转换器的输出电压; 以及与数字信号同步产生触发信号的移位寄存器。 布置在两个DA转换器之间的间隙中的分压器包括以二维矩阵排列的存储元件和多个电阻布线。 存储器元件与触发信号同步地存储由解码器产生的解码信号，并且根据由存储器元件存储的解码信号选择性地提供从两个DA转换器导出并在电阻布线上产生的分压 。
-
公开(公告)号：US08643574B2
公开(公告)日：2014-02-04
申请号：US12216580
申请日：2008-07-08
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2310/0262 , G09G2320/0233 , G09G2320/0285 , G09G2320/0295 , G09G2320/041 , G09G2320/048 , G09G2320/0693
摘要： To determine a deterioration and maintain a high-quality image without unevenness of brightness by performing a precise correction, a detection scanning line for selecting a pixel which detects a deterioration of a pixel, a detection line for informing the outside of the display area of the property of a pixel selected for detecting the deterioration, a deterioration determination means for determining a deterioration amount based on a voltage corresponding to a current detected by the detection line, and a deterioration correction means (computation circuit) for reflecting the determination result of the deterioration determination means in image data supplied to the pixel, are provided.
摘要翻译： 为了通过执行精确校正来确定劣化并且保持没有亮度不均匀的高质量图像，用于选择检测像素劣化的像素的检测扫描线，用于通知显示区域的外部的检测线 选择用于检测劣化的像素的特性;劣化判定装置，用于根据与由检测线检测到的电流相对应的电压来确定劣化量;劣化校正装置（计算电路），用于反映恶化的确定结果 提供了提供给像素的图像数据中的确定装置。
-
公开(公告)号：US08605062B2
公开(公告)日：2013-12-10
申请号：US12073219
申请日：2008-03-03
IPC分类号： G09G3/30
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。
-
公开(公告)号：US08085225B2
公开(公告)日：2011-12-27
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。
-
公开(公告)号：US08063857B2
公开(公告)日：2011-11-22
申请号：US12003373
申请日：2007-12-21
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： G09G3/3233 , G09G3/3283 , G09G2300/0819 , G09G2300/0852 , G09G2310/0251 , G09G2320/0223 , G09G2320/0626
摘要： When an organic EL display apparatus enables display of a standard luminance mode and a high luminance mode, it takes long time to reset the gate potential of the OLED drive TFT to a given value in a standard mode. In the reset operation of the gate potential of an OLED drive TFT at the time of writing an image signal, in a standard mode, a precharge current is allowed to flow in the OLED element for a short period before the reset operation to set an initial value of the gate potential of the OLED drive TFT to be close to a supply potential or a reference potential. With the above operation, the variation of the OLED drive TFT gate potential after resetting is reduced. As a result, the light emitting period during one frame can be extended. Also, since a blanking period can be extended, it is possible to measure the characteristic of the OLED element by using the blanking period.
摘要翻译： 当有机EL显示装置能够显示标准亮度模式和高亮度模式时，以标准模式将OLED驱动TFT的栅极电位重置为给定值需要很长时间。 在写入图像信号时OLED驱动TFT的栅极电位的复位操作中，在标准模式下，允许预充电电流在复位操作之前在OLED元件中流动一段很短的时间，以设置初始 OLED驱动TFT的栅极电位的值接近电源电位或参考电位。 通过上述操作，复位后的OLED驱动TFT栅极电位的变化减小。 结果，可以延长一帧期间的发光周期。 此外，由于可以延长消隐期，因此可以通过使用消隐期来测量OLED元件的特性。
-
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。
-
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。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
212 条记录 (耗时 0.029 秒)
