专利名称：OLED display with aging compensation发明人：Ronald S. Cok,Thomas Niertit,Andrew D.
Arnold
申请号：US10712337申请日：20031113
公开号：US20040070558A1公开日：20040415
专利附图：
摘要：An organic light-emitting diode (OLED) display having addressable pixels on asubstrate, the pixels having performance attributes, and a control circuit for controllingthe pixels of the display device, includes one or more OLED pixels; an OLED reference
pixel located on a substrate and connected to the control circuit, the OLED referencepixel having the same performance attributes as the one or more OLED pixels, the OLEDreference pixel having a voltage sensing circuit including a transistor connected to one ofthe terminals of the OLED reference pixel for sensing the voltage across the OLEDreference pixel to produce a voltage signal representing the voltage across the OLEDreference pixel; a measurement circuit connected to the voltage signal to produce anoutput signal representative of the performance attributes of the OLED reference pixel;an analysis circuit connected to the measurement circuit to receive the output signal,compare the performance attributes with predetermined performance attributes, andproduce a feedback signal in response thereto; and the control circuit being responsiveto the feedback signal to compensate for changes in the output of the OLED pixels.
申请人：EASTMAN KODAK COMPANY
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