Ignis Innovation Inc.

Texavie Technologies Inc.

Arokia Nathan

Peyman Servati

Gholamreza Reza Chaji

G Reza Chaji

Shahin Jafarabadiashtiani

Kapil Vinod Sakariya

Stefan Alexander

Gholamreza Chaji

Corbin Church

Richard I-Heng Huang

Yuriy Vygranenko

Anil Kumar

Frank K Ko

Saeid Soltanian

Amir Servati

Karim Sallaudin Karim

Sanjiv Sambandan

Rick I-Heng Huang

Arokia c/o Ignis Innovation Inc Nathan

Golamreza Chaji

Reza G Chaji

Kapil Sakariya

A method and system for programming, calibrating and driving a light emitting device display, and for operating a display at a constant luminance even as some of the pixels in the display are degraded over time. The system may include extracting a time dependent parameter of a pixel for calibration. Each pixel in the display is configured to emit light when a voltage is supplied to the pixel's driving circuit, which causes a current to flow through a light emitting element. Degraded pixels are compensated by supplying their respective driving circuits with greater voltages. The display data is scaled by a compression factor less than one to reserve some voltage levels for compensating degraded pixels. As pixels become more degraded, and require additional compensation, the compression factor is decreased to reserve additional voltage levels for use in compensation.

Method and system for programming, calibrating and/or compensating, and driving an LED display

This invention pertains to a low cost, low noise strain sensor based on a web of continuous core-shell nanofibers with conductive shell and mechanically robust core that can be attached or embedded on a variety objects for directional monitoring of static or dynamic changes in mechanical deformation and pressure. This is a low cost, highly sensitive strain sensor, with low noise and ease of integration for different applications from synthetic tactile skins, to vibrational and health monitoring.

Core-shell nanofiber textiles for strain sensing, and methods of their manufacture

A display degradation compensation system and method for adjusting the operating conditions for pixels in an OLED display to compensate for non-uniformity or aging of the display. The system or method sets an initial value for at least one of peak luminance and an operating condition, calculates compensation values for the pixels in the display, determines the number of pixels having compensation values larger than a predetermined threshold compensation value, and if the determined number of pixels having compensation values larger than said predetermined threshold value is greater than a predetermined threshold number, adjusts the set value until said determined number of pixels is less than said predetermined threshold number.

System and method for compensation of non-uniformities in light emitting device displays

A pixel circuit for use in a display comprising a plurality of pixels is provided. The load-balanced current mirror pixel circuit can compensate for device degradation and/or mismatch, and changing environmental factors like temperature and mechanical strain. The pixel circuit comprises a pixel drive circuit comprising, switching circuitry, a current mirror having a reference transistor and a drive transistor, the reference transistor and the drive transistor each having a first and second node and a gate, the gate of the reference transistor being connected to the gate of the drive transistor; and a capacitor connected between the gate of the reference transistor and a ground potential, and a load connected between the current mirror and a ground potential, the load having a first load element and a second load element, the first load element being connected to the first node of the reference transistor and the second load element being connected to the first node of the drive transistor.

Pixel driver circuit with load-balance in current mirror circuit

A method and system for programming, calibrating and driving a light emitting device display is provided. The system may include extracting a time dependent parameter of a pixel for calibration.

Method and system for programming, calibrating and driving a light emitting device display

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. The technique can also include block of the reference elements for input signal corrections.

Circuit and method for driving an array of light emitting pixels

Method and system for programming and driving active matrix light emitting device pixel is provided. The pixel is a voltage programmed pixel circuit, and has a light emitting device, a driving transistor and a storage capacitor. The pixel has a programming cycle having a plurality of operating cycles, and a driving cycle. During the programming cycle, the voltage of the connection between the OLED and the driving transistor is controlled so that the desired gate-source voltage of a driving transistor is stored in a storage capacitor.

Method and system for programming and driving active matrix light emitting device pixel having a controllable supply voltage

A voltage programmed pixel circuit, display system having the pixel circuit and driving method thereof is provided. The pixel circuit includes a light emitting device, a driving transistor connected to the light emitting device and a programming circuit. The programming circuit adjusts a pixel current during a programming cycle of the pixel circuit.

Voltage programmed pixel circuit, display system and driving method thereof

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Vancouver, Canada

Peyman Servati