GSI solidified its commitment to printed electronics in 2004 when it acquired the assets of a leading electroluminescent (EL) display company. The acquisition enabled the expansion into supplying at high volumes printed lights for automotive, consumer, and medical lighting applications. These lights are multilayer printed structures that are AC driven but are “cool” sources. Applications are currently being printed for backlighting of medical device displays, commercial signage, automotive accents and consumer nightlight products. Typical applications include:
The manufacturing of EL lamps requires printing multiple layers of dielectric and insulating layers in high precision. Lamp finishing requires part level removal and subsequent connector attachment. GSI can support the full layout of new designs and advise on the appropriate functional constraints. GSI capabilities supported by lamp technology can offer:
EL lamps are essentially a flat capacitor structure with microencapsulated zinc sulfide phosphor particles sandwiched between two electrodes. One of the electrodes is transparent to allow light to escape. Application of an AC voltage across the electrodes generates a changing electric field within the phosphor layer. This change of field causes the phosphor particles to emit visible light.
EL lamps draw very little power, and produce little heat. Because they don’t contain filaments or mechanical parts, EL lamps are not susceptible to shock, vibration or catastrophic light failure, making them ideal for applications such as cellular phones, hand-held portable electronic devices, and automotive backlighting and “mood” lighting. GSI is a recognized leader in EL production, testing, and qualification. GSI’s EL lamps are among the brightest available. We can design EL lamps for most any size, shape, or form you can imagine.
GSI has invested in the laser processing, printing, and converting equipment to produce repeatable EL lamp constructions. Laser processing is available for highly selective transparent conductor ablation. High volume precision screen printing with camera registration ensures consistent layer to layer registration of critical dielectric and conductive layers. Finished lamps are produced with or without protective laminates.
GSI has years of experience and has optimized the best material solutions to produce very robust lamp designs. Material selection has been optimized to extend and maximize lamp useful life. It is not uncommon to find multi-year extended performance of GSI lamps due to the materials selected.
Our team includes experienced engineers and a full service art department that is prepared to meet your manufacturing requirements.
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