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Ignis Innovation Inc patents


Recent patent applications related to Ignis Innovation Inc. Ignis Innovation Inc is listed as an Agent/Assignee. Note: Ignis Innovation Inc may have other listings under different names/spellings. We're not affiliated with Ignis Innovation Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "I" | Ignis Innovation Inc-related inventors


Cleaning common unwanted signals from pixel measurements in emissive displays

Methods of compensating for common unwanted signals present in pixel data measurements of a pixel circuit in a display having a plurality of pixel circuits each including a storage device, a drive transistor, and a light emitting device. First pixel data is measured from a first pixel circuit through a monitor line. ... Ignis Innovation Inc

Display systems with compensation for line propagation delay

A method for characterizing and eliminating the effect of propagation delay on data and monitor lines of amoled panels is introduced. A similar technique may be utilized to cancel the effect of incomplete settling of select lines that control the write and read switches of pixels on a row.. ... Ignis Innovation Inc

Pixel circuits for amoled displays

A system for driving a display that includes a plurality of pixel circuits arranged in an array, each of the pixel circuits including a light emitting device and a driving transistor for conveying a driving current through the light emitting device. Methods of measuring characteristics of circuit elements of pixels sharing a monitor line include the control of biasing to selectively turn off circuit elements or render their response known while measuring other circuit elements of interest.. ... Ignis Innovation Inc

Pixel circuits for mitigation of hysteresis

What is disclosed are display systems and methods of compensation of images produced by active matrix light emitting diode device (amoled) and other emissive displays. Anomalies in luminance produced by pixel circuits due to hysteresis effects are corrected through in-pixel compensation and resetting of the driving transistor.. ... Ignis Innovation Inc

Pixel circuits for amoled displays

The oled voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the oled voltage. One method for extracting the oled voltage is to first program the pixel in a way that the current is not a function of oled voltage, and then in a way that the current is a function of oled voltage. ... Ignis Innovation Inc

System and methods for extracting correlation curves for an organic light emitting device

A system for compensating the input signals to arrays of pixels that include semiconductor devices that age differently under different ambient and stress conditions. The system creates a library of compensation curves for different stress conditions of the semiconductor devices; identifies the stress conditions for at least a selected one of the semiconductor devices based on the rate of change or absolute value of at least one parameter of at least the selected device; selects a compensation curve for the selected device based on the identified stress conditions; calculates compensation parameters for the selected device based on the selected compensation curve; and compensates an input signal for the selected device based on the calculated compensation parameters.. ... Ignis Innovation Inc

Pixel circuits for amoled displays

A system for driving a display that includes a plurality of pixel circuits arranged in an array, each of the pixel circuits including a light emitting device and a driving transistor for conveying a driving current through the light emitting device. Each of a first plurality of supply lines is associated with at least one pixel circuit in a preselected segment of the array, the first plurality of supply lines providing driving currents to the at least one pixel circuit in the preselected segment. ... Ignis Innovation Inc

System and method for extracting correlation curves for an organic light emitting device

A system for determining the efficiency degradation of an organic light emitting device (oled) in an array-based semiconductor device having an array of pixels that include oleds. The system determines the relationship between changes in an electrical operating parameter of the oleds and the efficiency degradation of said oleds, for at least one stress condition; measures a change in the electrical operating parameter of the oleds; determines the stress condition of at least one pixel or group of pixels in the semiconductor device; and uses the determined relationship and the determined stress condition to determine the efficiency degradation of the oleds corresponding to the measured change in the electrical operating parameter of the oleds.. ... Ignis Innovation Inc

Oled display system and method

A method and system control an oled display to achieve desired color points and brightness levels in an array of pixels in which each pixel includes at least three sub-pixels having different colors and at least one white sub-pixel. The method and system select a plurality of reference points in the pixel content domain with known color points and brightness levels. ... Ignis Innovation Inc

System and driving method for light emitting device display

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. ... Ignis Innovation Inc

High pixel density array architecture

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.. . ... Ignis Innovation Inc

Stable driving scheme for active matrix displays

A method and system for operating a pixel array having at least one pixel circuit is provided. The method includes repeating an operation cycle defining a frame period for a pixel circuit, including at each frame period, programming the pixel circuit, driving the pixel circuit, and relaxing a stress effect on the pixel circuit, prior to a next frame period. ... Ignis Innovation Inc

Pixels and reference circuits and timing techniques

What is disclosed are systems and methods of compensation of images produced by active matrix light emitting diode device (amoled) and other emissive displays. Anomalies in luminance produced by pixel circuits and bias currents produced by current biasing circuits for driving current biased voltage programmed pixels are corrected through calibration and compensation while re-using existing data or other lines that can be controlled individually to perform said calibration and compensation.. ... Ignis Innovation Inc

Multi-functional active matrix organic light-emitting diode display

A multi-functional active matrix display comprises a transparent front sheet, a semi-transparent layer of light emissive devices adjacent the rear side of the front sheet and forming a matrix of display pixels, and a solar cell layer located behind the light emissive devices for converting both ambient light and internal light7 from the light emissive devices into electrical energy, the solar cell layer including an array of electrodes on the front surface of the solar cell layer for use in detecting the location of a change in the amount of light impinging on a portion of the front surface of the solar cell layer.. . ... Ignis Innovation Inc

02/15/18 / #20180047934

Electrode contacts

A device structure providing contact to conductive layers via a deep trench structure is disclosed. The device includes a first dielectric layer including a first opening. ... Ignis Innovation Inc

02/08/18 / #20180040300

Stable fast programming scheme for displays

A technique for improving the spatial and/or temporal uniformity of a light-emitting display by providing a faster calibration of reference current sources and reducing the noise effect by improving the dynamic range, despite instability and non-uniformity of the transistor devices. A calibration circuit for a display panel having an active area having a plurality of light emitting devices arranged on a substrate, and a peripheral area of the display panel separate from the active area is provided. ... Ignis Innovation Inc

02/08/18 / #20180040269

Re-interpolation with edge detection for extracting an aging pattern for amoled displays

A method that includes an initial uniform pixel measurement and interpolation followed by an edge detection algorithm to recognize the areas that contribute mostly to the estimation error due to the interpolation. The pixels on the detected edges and around their vicinity are also measured, and an aging pattern of the entire display is obtained by re-interpolating the entire measured set of data for the initially measured pixels as well as the pixels around the detected edges. ... Ignis Innovation Inc

02/01/18 / #20180033368

Systems and method for fast compensation programming of pixels in a display

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. ... Ignis Innovation Inc

01/18/18 / #20180018919

Method and system for driving a light emitting device display

A method and system for driving a light emitting device display is provided. The system provides a timing schedule which increases accuracy in the display. ... Ignis Innovation Inc

01/04/18 / #20180005583

Pixel circuits for amoled displays

A system is provided for controlling an array of pixels in a display in which each pixel includes a light-emitting device and a reference voltage source that controllably supplies a reference voltage having a magnitude that turns off the light-emitting device. While the reference voltage is coupled to a drive transistor, a control voltage is supplied to the gate of the drive transistor to cause the drive transistor to transfer to a node common to the drive transistor and the light-emitting device, a voltage that is a function of the threshold voltage and mobility of the drive transistor. ... Ignis Innovation Inc

01/04/18 / #20180005577

Driving system for active-matrix displays

Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an amoled display.. ... Ignis Innovation Inc

01/04/18 / #20180005559

System and methods for extraction of threshold and mobility parameters in amoled displays

Disclosed is a system and method to improve the extraction of transistor and oled parameters in an amoled display for compensation of programming voltages to improve image quality. A pixel circuit includes 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. ... Ignis Innovation Inc

01/04/18 / #20180005558

System and methods for extraction of threshold and mobility parameters in amoled displays

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. ... Ignis Innovation Inc

01/04/18 / #20180005557

System and methods for aging compensation in amoled displays

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. ... Ignis Innovation Inc

12/21/17 / #20170365201

System and methods for extracting correlation curves for an organic light emitting device

A system and method for determining and applying characterization correlation curves for aging effects on an organic light organic light emitting device (oled) based pixel is disclosed. A first stress condition is applied to a reference pixel having a drive transistor and an oled. ... Ignis Innovation Inc

12/14/17 / #20170358251

Systems and methods for aging compensation in amoled displays

Circuits for programming, monitoring, and driving pixels in a display are provided. Circuits generally include a driving transistor to drive current through a light emitting device according to programming information which is stored on a storage device, such as a capacitor. ... Ignis Innovation Inc

11/30/17 / #20170345364

Correction for localized phenomena in an image array

A method and system of compensating for localized phenomena in a display is disclosed. The display includes an array of pixels and a control system for adjusting content data signals for the array of pixels to compensate for aging of the pixels in the array. ... Ignis Innovation Inc

11/09/17 / #20170323599

Pixel circuits including feedback capacitors and reset capacitors, and dispay systems therefore

A display with a pixel circuit for driving a current-driven emissive element includes a feedback capacitor in series between the emissive element and a programming node of the pixel circuit. During driving, variations in the operating voltage of the emissive element due to variations in the current conveyed through the emissive element by a driving transistor are accounted for. ... Ignis Innovation Inc

10/26/17 / #20170309210

Display systems with compensation for line propagation delay

A method for characterizing and eliminating the effect of propagation delay on data and monitor lines of amoled panels is introduced. A similar technique may be utilized to cancel the effect of incomplete settling of select lines that control the write and read switches of pixels on a row.. ... Ignis Innovation Inc

10/05/17 / #20170287398

Amoled displays with multiple readout circuits

The oled voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the oled voltage. One method for extracting the oled voltage is to first program the pixel in a way that the current is not a function of oled voltage, and then in a way that the current is a function of oled voltage. ... Ignis Innovation Inc

09/14/17 / #20170263182

Pixel circuits for amoled displays

A method and system determine the characteristics of drive devices and load devices in selected pixels in an array of pixels in a display in which each pixel includes a drive device for supplying current to a load device. The method and system supply current to the load device via the drive device in a selected pixel, the current being a function of a current effective characteristic of at least one of the drive device and the load device; measure the current via a measurement line that is shared by adjacent pixels, and extract the value of a selected effective characteristic of one of the drive and load devices from the effect of the current on another of the drive and load devices. ... Ignis Innovation Inc

09/07/17 / #20170256201

Pixel circuits for amoled displays

A system for controlling a display in which each pixel circuit comprises a light-emitting device, a drive transistor, a storage capacitor, a reference voltage source, and a programming voltage source. The storage capacitor stores a voltage equal to the difference between the reference voltage and the programming voltage, and a controller supplies a programming voltage that is a calibrated voltage for a known target current, reads the actual current passing through the drive transistor to a monitor line, turns off the light emitting device while modifying the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, modifies the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, and determines a current corresponding to the modified calibrated voltage based on predetermined current-voltage characteristics of the drive transistor.. ... Ignis Innovation Inc

08/10/17 / #20170229065

Pixel circuits for amoled displays

The oled voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the oled voltage. One method for extracting the oled voltage is to first program the pixel in a way that the current is not a function of oled voltage, and then in a way that the current is a function of oled voltage. ... Ignis Innovation Inc

07/06/17 / #20170193915

Stable driving scheme for active matrix displays

A method and system for operating a pixel array having at least one pixel circuit is provided. The method includes repeating an operation cycle defining a frame period for a pixel circuit, including at each frame period, programming the pixel circuit, driving the pixel circuit, and relaxing a stress effect on the pixel circuit, prior to a next frame period. ... Ignis Innovation Inc

07/06/17 / #20170193873

Adaptive feedback system for compensating for aging pixel areas with enhanced estimation speed

A local priority-based scanning scheme that focuses scanning to areas of a display panel whose measured characteristics are under continuous change (e.g., aging or relaxation). The algorithm identifies areas or regions needing compensation, using a current measurement from a single pixel in an area as a candidate to determine whether the rest of the region needs further compensation. ... Ignis Innovation Inc

06/01/17 / #20170154574

Systems and methods for display systems with dynamic power control

Methods and systems to dynamically adjust a voltage supply of a display are provided. Systems are provided to receive a digital data input indicative of an amount of luminance to be emitted from the display, to determine a desired supply voltage to supply to the display based on the received digital data, and to adjust an adjustable voltage supply according to the determined desired supply voltage. ... Ignis Innovation Inc

05/18/17 / #20170140687

System and methods for extraction of threshold and mobility parameters in amoled displays

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. ... Ignis Innovation Inc

05/04/17 / #20170125498

Pixel having an organic light emitting diode and method of fabricating the pixel

A pixel having an organic light emitting diode (oled) and method for fabricating the pixel is provided. A planarization dielectric layer is provided between a thin-film transistor (tft) based backplane and oled layers. ... Ignis Innovation Inc

04/27/17 / #20170116900

High density pixel pattern

A pixel pattern of material light emissive areas for an emissive display system having pixels, each pixel having subpixels, each subpixel having a light emitting device defining the material light emissive area of the subpixel, the pixel pattern comprising: for each pixel, a shared elongated subpixel of a first primary color shared with an adjacent pixel and an elongated subpixel of a second or third primary color located in an area on an opposite side of the shared elongated subpixel from the adjacent pixel.. . ... Ignis Innovation Inc

04/20/17 / #20170110061

Systems and methods of multiple color driving

Systems and methods of color data driving for light emissive visual display technology, and particularly to systems and methods for driving pixels with more than three primary color subpixels. Only a subset of the total number of subpixels per pixel are driven at any one time reducing the number of decoders/dacs. ... Ignis Innovation Inc

03/30/17 / #20170092167

Re-interpolation with edge detection for extracting an aging pattern for amoled displays

A method that includes an initial uniform pixel measurement and interpolation followed by an edge detection algorithm to recognize the areas that contribute mostly to the estimation error due to the interpolation. The pixels on the detected edges and around their vicinity are also measured, and an aging pattern of the entire display is obtained by re-interpolating the entire measured set of data for the initially measured pixels as well as the pixels around the detected edges. ... Ignis Innovation Inc

03/16/17 / #20170076670

Pixels and reference circuits and timing techniques

What is disclosed are systems and methods of compensation of images produced by active matrix light emitting diode device (amoled) and other emissive displays. Anomalies in luminance produced by pixel circuits and bias currents produced by current biasing circuits for driving current biased voltage programmed pixels are corrected through calibration and compensation while re-using existing data or other lines that can be controlled individually to perform said calibration and compensation.. ... Ignis Innovation Inc

03/16/17 / #20170076647

Display systems with compensation for line propagation delay

A method for characterizing and eliminating the effect of propagation delay on data and monitor lines of amoled panels is introduced. A similar technique may be utilized to cancel the effect of incomplete settling of select lines that control the write and read switches of pixels on a row.. ... Ignis Innovation Inc

03/09/17 / #20170069266

Oled luminance degradation compensation

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.. ... Ignis Innovation Inc

03/02/17 / #20170061881

Charged-based compensation and parameter extraction in amoled displays

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. ... Ignis Innovation Inc

02/09/17 / #20170040564

Electrode contacts

A device structure providing contact to conductive layers via a deep trench structure is disclosed. The device includes a first dielectric layer including a first opening. ... Ignis Innovation Inc

02/09/17 / #20170039939

Systems and methods of pixel calibration based on improved reference values

What is disclosed are systems and methods of compensation of images produced by active matrix light emitting diode device (amoled) and other emissive displays. The electrical output of a pixel is compared with a reference value to adjust an input for the pixel. ... Ignis Innovation Inc

01/26/17 / #20170025067

System and methods for thermal compensation in amoled displays

Disclosed is a circuit and technique to determine the temperature of an amoled display in order to calibrate programming data signals. The temperature of selected pixels of a plurality of pixels in an amoled display is measured via one of several disclosed methods. ... Ignis Innovation Inc

01/26/17 / #20170025065

Method and system for driving an active matrix display circuit

A method and system for driving an active matrix display is provided. The system includes a drive circuit for a pixel having a light emitting device. ... Ignis Innovation Inc

01/26/17 / #20170025063

Systems and methods of hybrid calibration of bias current

What is disclosed are systems and methods of compensation of images produced by active matrix light emitting diode device (amoled) and other emissive displays. Anomalies in bias currents produced by current biasing circuits for driving current biased voltage programmed pixels are corrected through calibration and compensation while re-using existing data or other lines that can be controlled individually to perform said calibration and compensation.. ... Ignis Innovation Inc

01/12/17 / #20170011674

System and methods for extracting correlation curves for an organic light emitting device

A system and method for determining and applying characterization correlation curves for aging effects on an organic light organic light emitting device (oled) based pixel is disclosed. A first stress condition is applied to a reference pixel having a drive transistor and an oled. ... Ignis Innovation Inc

01/05/17 / #20170004769

Circuit and method for driving an array of light emitting pixels

A technique for driving a column of pixels that include light emitting elements. The technique incorporates feedback data provided from feedback data sources connected to the data line and to feedback line of the array, pixel driving circuit with feedback path. ... Ignis Innovation Inc








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