James D. Sampica

Direct dry film optical bonding - A low-cost, robust, and scalable display lamination technology

Abstract— A robust, repeatable, low-cost lamination process that utilizes pressure-sensitive adhesive (PSA) to directly bond substrates to displays, such as LC, OLED, plasma, and electrophoretic displays, has been developed. These substrates can vary in intent and serve as protective covers, reflection mitigation, heaters, filters, touch screens, environmental barriers, etc. The resultant assembly is very rugged (shock, impact, and vibration resistant), while maximizing optical performance. This paper briefly describes the traditional liquid bonding technologies and compares them to dry-film bonding. A section of the paper focuses on the enhanced optical and environmental performances of dry-film bonded displays. This paper may also serve as a brief review of optical-bonding technologies.

Characterization of a monochromatic 128x64 resolution PLED for military instrumentation applications

A characterization was performed on a monochrome, low-information content polymeric light emitting diode (PLED) display to determine the effects of ruggedization for military display applications. A summary of the environmental, mechanical, and optical characterization results show that a unique direct bonding method and night vision imaging system (NVIS) filter material can be used to ruggedize commercial-off-the-shelf (COTS) PLED displays to operate in demanding military environments. Significant enhancements to a COTS PLED device are discussed in terms of impact resistance, enhanced sunlight readability, and compatibility with night vision operations.

Advanced gray-scale compensator for TN-LCDs for avionics applications

The gray-scale and contrast-viewing-angle deficiencies of normally white TN-LCDs must be overcome for the device to be utilized in high-performance avionics display applications. A compensator that enhances the contrast and gray scale of normally white TN-LCDs over a wide range of viewing angles is described. The compensator includes a unique biaxial element with an obliquely oriented principal optical axis. The compensators design, fabrication, modeled performance, and performance measured on an avionics display system are presented.