27 February 2002 Technology and design of an active-matrix OLED on crystalline silicon direct-view display for a wristwatch computer
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Abstract
The IBM Research Division and eMagin Corp. jointly have developed a low-power VGA direct view active matrix OLED display, fabricated on a crystalline silicon CMOS chip. The display is incorporated in IBM prototype wristwatch computers running the Linus operating system. IBM designed the silicon chip and eMagin developed the organic stack and performed the back-end-of line processing and packaging. Each pixel is driven by a constant current source controlled by a CMOS RAM cell, and the display receives its data from the processor memory bus. This paper describes the OLED technology and packaging, and outlines the design of the pixel and display electronics and the processor interface. Experimental results are presented.
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James L. Sanford, Eugene S. Schlig, Olivier Prache, Derek B. Dove, Tariq A. Ali, Webster E. Howard, "Technology and design of an active-matrix OLED on crystalline silicon direct-view display for a wristwatch computer", Proc. SPIE 4464, Organic Light-Emitting Materials and Devices V, (27 February 2002); doi: 10.1117/12.457469; https://doi.org/10.1117/12.457469
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