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    SYSTEMS AND METHODS FOR OPERATING PIXELS IN A DISPLAY TO MITIGATE IMAGE FLICKER
    1.
    发明申请
    SYSTEMS AND METHODS FOR OPERATING PIXELS IN A DISPLAY TO MITIGATE IMAGE FLICKER 有权

    公开(公告)号：US20210280153A1

    公开(公告)日：2021-09-09

    申请号：US17205748

    申请日：2021-03-18

    申请人： Ignis Innovation Inc.

    发明人： Gholamreza Chaji ,  Jackson Chi Sun Lai ,  Yaser Azizi ,  Maran Ran Ma

    IPC分类号： G09G5/10 ,  G09G3/3275

    摘要： Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. The present disclosure provides driving schemes for decreasing flickering perceived while displaying video content by introducing idle phases in between in emission phases to increase the effective refresh rate of a display. Driving schemes are also disclosed for reducing the effects of cross-talk by ensuring that programming information is refreshed in a display array that utilizes a driver connected to multiple data lines via a multiplexer.

    System and methods for extraction of threshold and mobility parameters in AMOLED displays
    3.
    发明授权
    System and methods for extraction of threshold and mobility parameters in AMOLED displays 有权

    公开(公告)号：US10580337B2

    公开(公告)日：2020-03-03

    申请号：US16175906

    申请日：2018-10-31

    申请人： Ignis Innovation Inc.

    发明人： Gholamreza Chaji ,  Yaser Azizi

    IPC分类号： G09G3/00 ,  G09G3/3233 ,  G09G3/3291 ,  G09G3/3258 ,  G01R19/00 ,  G09G3/3266 ,  H03F3/217

    摘要： A system to improve the extraction of transistor and OLED parameters in an AMOLED display includes a pixel circuit having an organic light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input to provide the programming signal, and a storage device to store the programming signal. A charge-pump amplifier has a current input and a voltage output. The charge-pump amplifier includes an operational amplifier in negative feedback configuration. The feedback is provided by a capacitor connected between the output and the inverting input of the operational amplifier. A common-mode voltage source drives the non-inverting input of the operational amplifier. An electronic switch is coupled across the capacitor to reset the capacitor. A switch module including the input is coupled to the output of the pixel circuit and an output is coupled to the input of the charge-pump amplifier.

    System and methods for extraction of threshold and mobility parameters in AMOLED displays
    4.
    发明授权
    System and methods for extraction of threshold and mobility parameters in AMOLED displays 有权

    公开(公告)号：US10325537B2

    公开(公告)日：2019-06-18

    申请号：US16013005

    申请日：2018-06-20

    申请人： Ignis Innovation Inc.

    发明人： Gholamreza Chaji ,  Ricky Yik Hei Ngan ,  Nino Zahirovic ,  Yaser Azizi

    IPC分类号： G09G3/00 ,  G09G3/3233

    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.

    System and methods for aging compensation in AMOLED displays
    5.
    发明授权
    System and methods for aging compensation in AMOLED displays 有权

    公开(公告)号：US10304390B2

    公开(公告)日：2019-05-28

    申请号：US15170336

    申请日：2016-06-01

    申请人： Ignis Innovation Inc.

    发明人： Gholamreza Chaji ,  Joseph Marcel Dionne ,  Yaser Azizi ,  Javid Jaffari ,  Abbas Hormati ,  Tong Liu ,  Stefan Alexander

    IPC分类号： G09G3/00 ,  G09G3/3291 ,  G09G3/3233

    摘要： A voltage-programmed display system allows measurement of effects on pixels in a panel that includes both active pixels and reference pixels coupled to a supply line and a programming line. The reference pixels are controlled so that they are not subject to substantial changes due to aging and operating conditions over time. A readout circuit is coupled to the active pixels and the reference pixels for reading at least one of current, voltage or charge from the pixels when they are supplied with known input signals. The readout circuit is subject to changes due to aging and operating conditions over time, but the readout values from the reference pixels are used to adjust the readout values from the active pixels to compensate for the unwanted effects.

    Integrated display system
    6.
    发明授权
    Integrated display system 有权

    公开(公告)号：US10134325B2

    公开(公告)日：2018-11-20

    申请号：US14961983

    申请日：2015-12-08

    申请人： Ignis Innovation Inc.

    发明人： Gholamreza Chaji ,  Yaser Azizi

    IPC分类号： G09G3/20 ,  G09G3/3233 ,  G09G3/3258

    摘要： What is disclosed are systems and methods for emissive display systems constructed on integrated architecture platforms, for which the pixels are smart and can behave differently under different conditions to save power, provide better image quality, and/or conserve their value to reduce the power consumption associated with programming.