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1. 发明授权

US09877371B2 System and driving method for light emitting device display 有权
公开(公告)号：US09877371B2
公开(公告)日：2018-01-23
申请号：US14094175
申请日：2013-12-02
申请人： Ignis Innovation Inc.
发明人： Arokia Nathan , Gholamreza Chaji , Stefan Alexander
IPC分类号： H05B33/08 , G09G3/3233 , G09G3/3283 , G09G3/3291 , G09G3/3258 , G09G3/3241
CPC分类号： H05B33/0896 , G09G3/3233 , G09G3/3241 , G09G3/3258 , G09G3/3283 , G09G3/3291 , G09G2300/043 , G09G2300/0819 , G09G2300/0852 , G09G2300/0861 , G09G2310/0262 , G09G2320/0252 , G09G2320/043 , G09G2320/045 , H05B33/083
摘要： A light emitting device display, its pixel circuit and its driving technique is provided. The pixel includes a light emitting device and a plurality of transistors. A bias current and programming voltage data are provided to the pixel circuit in accordance with a driving scheme so that the current through the driving transistor to the light emitting device is adjusted.

2. 发明授权

US09070775B2 Thin film transistor 有权
标题翻译：薄膜晶体管
公开(公告)号：US09070775B2
公开(公告)日：2015-06-30
申请号：US14245203
申请日：2014-04-04
申请人： Ignis Innovation Inc.
发明人： Gholamreza Chaji , Maryam Moradi
IPC分类号： H01L29/78 , H01L29/786 , H01L29/06 , H01L51/05 , B82Y10/00 , H01L51/00 , H01L29/41
CPC分类号： H01L29/78654 , B82Y10/00 , H01L29/0673 , H01L29/413 , H01L29/78696 , H01L51/0048 , H01L51/0508
摘要： A thin film transistor comprises a semiconductor layer; first and second dielectric layers disposed on opposite sides of the semiconductor layer; a first metal layer forming first and second terminals on the opposite side of the first dielectric layer from the semiconductor layer, one of said first and second terminals extending through said first dielectric layer into contact with the semiconductor layer, the first and second terminals and the first dielectric layer forming a capacitor; and a second metal layer forming a third terminal on the opposite side of the second dielectric layer from the semiconductor layer. The first and second terminals may be source and drain terminals, and the third terminal may be a gate terminal. The first metal layer may be divided to form the first and second terminals. The third terminal may be shared with one of the first and second terminals.
摘要翻译：薄膜晶体管包括半导体层; 设置在半导体层的相对侧上的第一和第二电介质层; 第一金属层，在与第一电介质层的与半导体层相反的一侧形成第一和第二端子，所述第一和第二端子中的一个延伸穿过所述第一介电层与半导体层接触，第一和第二端子以及形成电容器的第一电介质层; 以及在所述第二电介质层的与所述半导体层相反的一侧形成第三端子的第二金属层。第一和第二端子可以是源极和漏极端子，并且第三端子可以是栅极端子。第一金属层可以被分割以形成第一和第二端子。第三终端可以与第一和第二终端中的一个共享。

3. 发明授权

US10170522B2 High pixel density array architecture 有权
公开(公告)号：US10170522B2
公开(公告)日：2019-01-01
申请号：US15811206
申请日：2017-11-13
申请人： Ignis Innovation Inc.
发明人： Gholamreza Chaji
IPC分类号： H01L27/32 , H01L51/56 , G09G3/36
摘要： What is disclosed is a pixel array architecture for displays being based on a matrix of subpixels arranged in a rectilinear matrix oriented at an angle relative to a horizontal direction of the display, exhibiting a reduced pixel pitch for the subpixels.

4. 发明授权

US09530349B2 Charged-based compensation and parameter extraction in AMOLED displays 有权
标题翻译： AMOLED显示屏中基于充电的补偿和参数提取
公开(公告)号：US09530349B2
公开(公告)日：2016-12-27
申请号：US14447323
申请日：2014-07-30
申请人： Ignis Innovation Inc.
发明人： Gholamreza Chaji
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/3258 , G09G2230/00 , G09G2300/043 , G09G2300/08 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0248 , G09G2310/0289 , G09G2310/0291 , G09G2320/029 , G09G2320/043 , G09G2330/10
摘要： A system reads a desired circuit parameter from a pixel circuit that includes a light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input, and a storage device to store a programming signal. One embodiment of the extraction system turns off the drive device and supplies a predetermined voltage from an external source to the light emitting device, discharges the light emitting device until the light emitting device turns off, and then reads the voltage on the light emitting device while that device is turned off. The voltages on the light emitting devices in a plurality of pixel circuits may be read via the same external line, at different times. In-pixel, charge-based compensation schemes are also discussed, which can be used with the external parameter extraction implementations.
摘要翻译：系统从包括发光器件的像素电路读取期望的电路参数，向发光器件提供可编程驱动电流的驱动器件，编程输入和存储编程信号的存储器件。提取系统的一个实施例关闭驱动装置并将预定电压从外部源提供给发光装置，将发光装置放电直到发光装置关闭，然后读取发光装置上的电压，同时该设备已关闭。多个像素电路中的发光器件上的电压可以在不同的时间通过相同的外部线读取。还讨论了基于像素的基于电荷的补偿方案，其可以与外部参数提取实现一起使用。

5. 发明授权

US09093019B2 Driving system for active-matrix displays 有权
标题翻译：有源矩阵显示驱动系统
公开(公告)号：US09093019B2
公开(公告)日：2015-07-28
申请号：US12878439
申请日：2010-09-09
申请人： Kongning Li , Vasudha Gupta , Gholamreza Chaji , Arokia Nathan
发明人： Kongning Li , Vasudha Gupta , Gholamreza Chaji , Arokia Nathan
IPC分类号： G09G3/22 , G09G3/20 , G09G3/32
CPC分类号： G09G3/2081 , G09G3/2022 , G09G3/3225 , G09G2320/0276 , G09G2320/043 , G09G2320/0626 , G09G2320/0673 , G09G2360/144 , G09G2360/16
摘要： A system is provided for using raw grayscale image data, representing images to be displayed in successive frames, to drive a display having pixels that include a drive transistor and an organic light emitting device. The system determines whether the raw grayscale image data for each pixel falls within a high range or a low range. Raw grayscale image data that falls within the low range is converted to higher grayscale values, and the pixels are driven with currents corresponding to the higher grayscale values during time periods that are shorter than complete frame time periods. Raw grayscale image data that falls within the high range is converted to higher grayscale values, and the pixels are driven with currents corresponding to the higher grayscale values during time periods that are shorter than complete frame time periods and different from the time periods of the low range image data.
摘要翻译：提供了一种系统，用于使用原始灰度级图像数据，表示要在连续帧中显示的图像，以驱动具有包括驱动晶体管和有机发光装置的像素的显示。系统确定每个像素的原始灰度图像数据是否落在高范围或低范围内。落在低范围内的原始灰度图像数据被转换为较高的灰度值，并且在比完整帧时间段短的时间段期间，以对应于较高灰度值的电流驱动像素。落在高范围内的原始灰度图像数据被转换为较高的灰度值，并且在比完整的帧时间段短的时间段内与不同于低的时间段的时间段内的较高灰度值的电流驱动像素范围图像数据。

6. 发明授权

US09530352B2 OLED luminance degradation compensation 有权
公开(公告)号：US09530352B2
公开(公告)日：2016-12-27
申请号：US14813904
申请日：2015-07-30
申请人： Ignis Innovation Inc.
发明人： Arokia Nathan , Gholamreza Chaji
IPC分类号： G09G3/3241 , G09G3/3283 , G09G3/3233 , H05B33/08 , G09G3/32
CPC分类号： G09G3/3233 , G09G3/3241 , G09G3/3283 , G09G2300/0465 , G09G2300/0819 , G09G2300/0842 , G09G2320/0233 , G09G2320/029 , G09G2320/0295 , G09G2320/041 , G09G2320/043 , G09G2320/045 , H05B33/0896
摘要： A system and method are disclosed for determining a pixel capacitance. The pixel capacitance is correlated to a pixel age to determine a current correction factor used for compensating the pixel drive current to account for luminance degradation of the pixel that results from the pixel aging.

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