Electroluminescent Lamps

Backlighting and Printed Light Technology

Nissha GSI has produced high volumes of printed lights for automotive, consumer, and medical applications. These lights are multi-layer printed structures that are AC driven but remain “cool” sources. Applications are currently being printed for backlighting of medical device displays, commercial signage, automotive accents, and consumer nightlight products.

Typical applications include:
  • Nightlights
  • EXIT signs
  • Address signs
  • Animated Point-of-Purchase (POP) displays
  • LCD backlights
  • Keypad backlights
  • Automotive instrument panels
  • Automotive gear indicators (PRNDLs)
  • Digital and analog clocks
  • Remote control keypads

Electroluminescent Lamp Technologies and Capabilities

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 attachments. Nissha GSI can support the full layout of new designs and advise on the appropriate functional constraints. EL lamps consist of a flat capacitor structure with micro-encapsulated zinc sulfide phosphor particles sandwiched between two electrodes, one of which 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.

Capabilities with lamp technology include:
  • Standard phosphor-based colors: white, blue, blue-green, green, and orange (other colors possible using internal dyes and external filters)
  • Lamps to 19” x 23” illuminated area
  • Little-to-no shape limitations. If you can draw it – we can light it
  • Power: EL lamps require AC input power. A battery or other type DC power source can be used in combination with a DC-to-AC inverter

Nissha GSI Electroluminescent Printing
and Product Advantages

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. Nissha GSI is a recognized leader in EL production, testing, and qualification and our EL lamps are among the brightest available. We can design EL lamps for most any size, shape, or form that you can imagine.

Characteristics

  • Industry Leader in EL production, testing, and qualification
  • Over 20 years of lamp manufacturing experience with over 85 million lamps shipped to date
  • Superior brightness – Nissha GSI EL systems are among the brightest available, with green: 100 cd/m2 (29fL) and white-on/white-off: 35 cd/m2 (10fL)
  • Flexible applications – Nissha GSI can produce your custom EL lamp design to back light, or selectively back light areas of small, complex or unusual shapes for specific applications
  • Extremely thin (typ. 0.30mm thick) and lightweight
  • Constructed on clear flexible polyester film for maximum durability and moisture resistance
  • Impervious to shock, vibration, or catastrophic failure
  • Even, uniform illumination
  • Low power consumption
  • Cool operation that produces no heat
  • Long-lasting technology providing thousands of hours of useful light
  • No glare

Relationships

Nissha GSI has long-standing relationships with key material, technology, and equipment suppliers, enabling us to give you consistent quality at competitive prices.

Experience

Nissha GSI has an extensive and broad engineering capabilities. Our experienced team has helped many companies navigate difficult technical problems not solved by other manufacturing partners.

Equipment

Nissha GSI invested in the laser processing, printing, and converting equipment necessary to produce repeatable and high-quality EL lamp constructions. High-volume precision screen printing with camera registration ensures consistent layer-to-layer registration of critical dielectric and conductive layers.

Materials

Years of experience have optimized the best material solutions to produce robust lamp designs with extended and maximized useful life. It is not uncommon to find multi-year extended performance of Nissha GSI lamps due to the materials selected.

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