Indium tin oxide thin films deposited by RF-magnetron sputtering for organic electro-luminescence devices

A sign assembly includes a plurality of rectangular display panels or slats which have a front surface for displaying written or graphic information and a planar obverse surface. The obverse surface has a pair of relatively narrow linear, parallel extending channels defined therein. Each channel is enlarged within an interior of the panel portions, preferably with a substantially circular transverse cross-section. The enlarged portion is larger in cross-section than the channel portion such that reaction surfaces are defined adjacent the channel portion facing toward the front of the panel. A mounting assembly includes an integral attaching plate which has a generally planar forward face for engaging the obverse surface of the display panels. A neck or web portion which adapted to be slidingly received in the channel portion of the panels is integrally connected with the attachment plate. An enlarged rod member with substantially the same cross section as the enlarged passage portion in the display panel is integrally connected with the web. The rod and web portion are slidably received within the channel and enlarged portion of a plurality of channels to provide a composite display.