Other

Eastman-kodak Company

Scott Stickel

John W Hamer

Timothy Floyd Spencer

Alan R Bentz

John Philip Wysokowski

An OLED device comprising a substrate with a top surface; a first electrode covering the top surface of the substrate; a first insulating structure patterned over a portion of the first electrode where the pattern defines an inside area of the first electrode that is completely surrounded by the insulating structure, and an outside area of the first electrode not covered by the insulating structure; at least one organic layer for light emission within the inside area defined by the insulating structure; a second electrode over the at least one organic layer within the inside area defined by the insulating structure and at least partially over the first insulating structure; a cover slip located at least over the second electrode in the inside area defined by the insulating structure; and an electrically conductive solder seal making a hermetic seal between the insulating structure and the cover slip where the solder seal is in electrical contact with the second electrode. The insulating structure is desirably made of glass frit.

Solder hermetic sealing for OLEDs

An apparatus for measuring web planarity includes a horizontal reference surface and a light source for projecting a light pattern onto the reference surface at an angle. A web is supported above the reference surface. An imaging device detects (1) positions on the reference plane of interception of discrete regions of the projected light pattern and (2) respective positions on the web of interception of the same discrete regions of the projected light pattern. The imaging device determines the vertical offset of the respective positions on the web as a function of differences in the detected positions on the reference plane and the respective detected positions on the web. A measure of non-planarity of the web is calculated based upon a comparison of a plurality of such vertical offsets from a plurality of detected positions of the web.

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Rochester, NY, United States of America

Scott Stickel