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公开(公告)号：US20110130981A1
公开(公告)日：2011-06-02
申请号：US12956842
申请日：2010-11-30
申请人： Gholamreza Chaji , Joseph Marcel Dionne , Yaser Azizi , Javid Jaffari , Abbas Hormati , Tong Liu , Stefan Alexander
发明人： Gholamreza Chaji , Joseph Marcel Dionne , Yaser Azizi , Javid Jaffari , Abbas Hormati , Tong Liu , Stefan Alexander
CPC分类号： G09G3/006 , G01R31/44 , G09G3/3233 , G09G3/3283 , G09G2300/0842 , G09G2320/0233 , G09G2320/0285 , G09G2320/029 , G09G2320/0295 , G09G2320/043 , G09G2320/045
摘要： Methods and systems to provide baseline measurements for aging compensation for a display device are disclosed. An example display system has a plurality of active pixels and a reference pixel. Common input signals are provided to the reference pixel and the plurality of active pixels. The outputs of the reference pixel is measured and compared to the output of the active pixels to determine aging effects. The display system may also be tested applying a first known reference current to a current comparator with a second variable reference current and the output of a device under test such as one of the pixels. The variable reference current is adjusted until the second current and the output of the device under test is equivalent of the first current. The resulting current of the device under test is stored in a look up table for a baseline for aging measurements during the display system operation. The display system may also be tested to determine production flaws by determining anomalies such as short circuits in pixel components such as OLEDs and drive transistors.
摘要翻译： 公开了提供用于显示装置的老化补偿的基线测量的方法和系统。 示例性显示系统具有多个有源像素和参考像素。 公共输入信号被提供给参考像素和多个有源像素。 测量参考像素的输出并将其与有源像素的输出进行比较，以确定老化效应。 还可以使用第二可变参考电流和正在测试的设备的输出（诸如像素之一）将显示系统应用于当前比较器的第一已知参考电流。 调整可变参考电流，直到第二个电流和被测器件的输出等于第一个电流。 在显示系统操作期间，被测器件的结果电流存储在查询表中，用于老化测量的基线。 也可以通过确定诸如OLED和驱动晶体管等像素部件中的短路的异常来测试显示系统来确定生产缺陷。
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公开(公告)号：US08914246B2
公开(公告)日：2014-12-16
申请号：US12956842
申请日：2010-11-30
申请人： Gholamreza Chaji , Joseph Marcel Dionne , Yaser Azizi , Javid Jaffari , Abbas Hormati , Tong Liu , Stefan Alexander
发明人： Gholamreza Chaji , Joseph Marcel Dionne , Yaser Azizi , Javid Jaffari , Abbas Hormati , Tong Liu , Stefan Alexander
CPC分类号： G09G3/006 , G01R31/44 , G09G3/3233 , G09G3/3283 , G09G2300/0842 , G09G2320/0233 , G09G2320/0285 , G09G2320/029 , G09G2320/0295 , G09G2320/043 , G09G2320/045
摘要： Methods and systems to provide baseline measurements for aging compensation for a display device are disclosed. An example display system has a plurality of active pixels and a reference pixel. Common input signals are provided to the reference pixel and the plurality of active pixels. The outputs of the reference pixel is measured and compared to the output of the active pixels to determine aging effects. The display system may also be tested applying a first known reference current to a current comparator with a second variable reference current and the output of a device under test such as one of the pixels. The variable reference current is adjusted until the second current and the output of the device under test is equivalent of the first current. The resulting current of the device under test is stored in a look up table for a baseline for aging measurements during the display system operation. The display system may also be tested to determine production flaws by determining anomalies such as short circuits in pixel components such as OLEDs and drive transistors.
摘要翻译： 公开了提供用于显示装置的老化补偿的基线测量的方法和系统。 示例性显示系统具有多个有源像素和参考像素。 公共输入信号被提供给参考像素和多个有源像素。 测量参考像素的输出并将其与有源像素的输出进行比较，以确定老化效应。 还可以使用第二可变参考电流和正在测试的设备的输出（诸如像素之一）将显示系统应用于当前比较器的第一已知参考电流。 调整可变参考电流，直到第二个电流和被测器件的输出等于第一个电流。 在显示系统操作期间，被测器件的结果电流存储在查询表中，用于老化测量的基线。 也可以通过确定诸如OLED和驱动晶体管等像素部件中的短路的异常来测试显示系统来确定生产缺陷。
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公开(公告)号：US09117400B2
公开(公告)日：2015-08-25
申请号：US12816856
申请日：2010-06-16
申请人： G. Reza Chaji , Joseph Marcel Dionne , Abbas Hormati , Tong Liu , Stefan Alexander , Arokia Nathan
发明人： G. Reza Chaji , Joseph Marcel Dionne , Abbas Hormati , Tong Liu , Stefan Alexander , Arokia Nathan
CPC分类号： G09G3/2003 , G06T7/90 , G09G3/2074 , G09G3/3208 , G09G5/026 , G09G2300/0452 , G09G2320/0242 , G09G2320/043 , G09G2320/0626 , G09G2320/0666 , H04N9/64
摘要： A system for maintaining a substantially constant display white point over an extended period of operation of a color display formed by an array of multiple pixels in which each of the pixels includes multiple subpixels having different colors, and each of the subpixels includes a light emissive device. The display is generated by energizing the subpixels of successively selected pixels, and the color of each selected pixel is controlled by the relatives levels of energization of the subpixels in the selected pixel. The degradation behavior of the subpixels in each pixel is determined, and the relative levels of energization of the subpixels in each pixel are adjusted to adjust the brightness shares of the subpixels to compensate for the degradation behavior of the subpixels. The brightness shares are preferably adjusted to maintain a substantially constant display white point.
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公开(公告)号：US20100315449A1
公开(公告)日：2010-12-16
申请号：US12816856
申请日：2010-06-16
申请人： G. Reza Chaji , Joseph Marcel Dionne , Abbas Hormati , Tong Liu , Stefan Alexander , Arokia Nathan
发明人： G. Reza Chaji , Joseph Marcel Dionne , Abbas Hormati , Tong Liu , Stefan Alexander , Arokia Nathan
CPC分类号： G09G3/2003 , G06T7/90 , G09G3/2074 , G09G3/3208 , G09G5/026 , G09G2300/0452 , G09G2320/0242 , G09G2320/043 , G09G2320/0626 , G09G2320/0666 , H04N9/64
摘要： A system for maintaining a substantially constant display white point over an extended period of operation of a color display formed by an array of multiple pixels in which each of the pixels includes multiple subpixels having different colors, and each of the subpixels includes a light emissive device. The display is generated by energizing the subpixels of successively selected pixels, and the color of each selected pixel is controlled by the relatives levels of energization of the subpixels in the selected pixel. The degradation behavior of the subpixels in each pixel is determined, and the relative levels of energization of the subpixels in each pixel are adjusted to adjust the brightness shares of the subpixels to compensate for the degradation behavior of the subpixels. The brightness shares are preferably adjusted to maintain a substantially constant display white point.
摘要翻译： 一种用于在由多个像素阵列形成的彩色显示器的延长操作期间保持基本上恒定的显示白点的系统，其中每个像素包括具有不同颜色的多个子像素，并且每个子像素包括发光装置 。 通过对连续选择的像素的子像素通电来产生显示，并且通过所选择的像素中的子像素的亲戚的激励水平来控制每个所选像素的颜色。 确定每个像素中的子像素的劣化行为，并且调整每个像素中的子像素的相对电位相等以调整子像素的亮度份额以补偿子像素的劣化行为。 优选调整亮度份额以维持基本恒定的显示白点。
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