TFEL edge emitter module and packaging assembly employing sealed cavity capacity varying mechanism.

摘要

A thin film electroluminescent (TFEL) edge emitter module (12) and packaging assembly, comprising a TFEL edge emitter module (12) including an electroluminescent (EL) stack (16) having a light emitting front edge (18A), an enclosure (14) defining a sealed cavity (46) enclosing at least a portion of said EL stack (16), and a thermally expansive and contractive liquid (48) substantially filling said sealed cavity (46), characterised by the provision of means (50) disposed in communication with said sealed cavity (46) and said liquid (48) therein for varying the liquid-holding capacity of said enclosure cavity (46) in response to thermal expansion and contraction of said liquid (48).