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Andrew D Arnold, Ronald S Cok: OLED display with aging compensation. Eastman Kodak Company, Andrew J Anderson, February 7, 2006: US06995519 (183 worldwide citation)

An organic light emitting diode (OLED) display includes an array of OLEDs, each OLED having two terminals; a voltage sensing circuit for each OLED including a transistor in each circuit connected to one of the terminals of a corresponding OLED for sensing the voltage across the OLED to produce feedb ...


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Ronald S Cok, Thomas Niertit, Andrew D Arnold: OLED display with aging compensation. Eastman Kodak Company, David A Novais, Andrew J Anderson, Stephen H Shaw, January 22, 2008: US07321348 (171 worldwide citation)

An organic light-emitting diode (OLED) display having addressable pixels on a substrate, the pixels having performance attributes, and a control circuit for controlling the pixels of the display device, includes one or more OLED pixels; an OLED reference pixel located on a substrate and connected to ...


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Ronald S Cok, Andrew D Arnold: OLED display with aging compensation. Eastman Kodak Company, Andrew J Anderson, Thomas H Close, January 9, 2007: US07161566 (62 worldwide citation)

An OLED display includes a plurality of light emitting elements divided into two or more groups, the light emitting elements having an output that changes with time or use; a current measuring device for sensing the total current used by the display to produce a current signal; and a controller for ...


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Arnold Andrew Daniel, Cok Ronald Steven: An oled display with aging compensation. Eastman Kodak Company, Arnold Andrew Daniel, Cok Ronald Steven, EASTMAN KODAK COMPANY, June 16, 2005: WO/2005/055186 (31 worldwide citation)

An organic light emitting diode (OLED) display includes an array of OLEDs, each OLED having two terminals; a voltage sensing circuit for each OLED including a transistor in each circuit connected to one of the terminals of a corresponding OLED for sensing the voltage across the OLED to produce feedb ...


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Ronald S Cok, Felipe A Leon: OLED display with aging compensation. Global OLED Technology, Morgan Lewis & Bockius, June 26, 2012: US08207914 (3 worldwide citation)

A method of compensating image signals for driving an OLED display having a plurality of light-emitting elements having outputs that change with time or use, comprising the steps of: a) obtaining a measured or estimated first value of the current used by individual light-emitting elements in respons ...


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Cok Ronald S, Arnold Andrew D: An oled display with aging compensation. Eastman Kodak Co, August 4, 2004: EP1443484-A2 (2 worldwide citation)

An OLED display includes a plurality of light emitting elements divided into two or more groups, the light emitting elements having an output that changes with time or use; a current measuring device for sensing the total current used by the display to produce a current signal; and a controller for ...


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Ronald S Cok, Andrew D Arnold: OLED display with aging compensation. Eastman Kodak Company, Thomas H Close, Patent Legal Staff, August 5, 2004: US20040150590-A1 (1 worldwide citation)

An OLED display includes a plurality of light emitting elements divided into two or more groups, the light emitting elements having an output that changes with time or use; a current measuring device for sensing the total current used by the display to produce a current signal; and a controller for ...


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Cok Ronald Steven, Leon Felipe Antonio: An oled display with aging compensation. Eastman Kodak Company, Cok Ronald Steven, Leon Felipe Antonio, EASTMAN KODAK COMPANY, May 10, 2007: WO/2007/053783 (1 worldwide citation)

Compensating image signals for driving an OLED display having a plurality of light-emitting elements having outputs that change with time or use, comprising: a) obtaining a measured or estimated first value of the current used by individual elements in response to known image signals; b) specifying ...


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Cok Ronald Steven, Leon Felipe Antonio: Oled display with aging compensation. Eastman Kodak Co, liudong weixin hua, November 5, 2008: CN200680041034

Compensating image signals for driving an OLED display having a plurality of light-emitting elements having outputs that change with time or use, comprising: a) obtaining a measured or estimated first value of the current used by individual elements in response to known image signals; b) specifying ...