Electro
Luminescence

 

Specifications
Standard Sizes
Colors
Inverter


 

Specifications:

Operating Voltage: 20~240 (VAC)
Operating Frequency: 50~3000 (Hz)
Operating Temperature: - 40 ~ + 85 (Degree Celsius)
Storage Temperature: - 40 ~ + 85 (Degree Celsius)

 

 

Standard Sizes:  

Type External (mm) Lit area (mm)
A2 609 x 435 422 x 596
A3 435 x 312 422 x 299
Y1 415 x 135 402 x 122

 

Colors Brightness
cd/m2
Spectrum
(x,y)
High Brightness Blue-Green 73 0.20, 0.47
Standard Blue-Green 62 0.21, 0.52
White 60 0.32, 0.43
Blue 27 0.15, 0.40
Green 30 0.18, 0.35
Lime-Green 55 0.22, 0.63
Yellow-Green 55 0.26, 0.65
Yellow 55 0.34, 0.57
Orange-Yellow 50 0.47, 0.47
Orange 37 0.51, 0.42
Red 18 0.52, 0.36
Pink 18 0.48, 0.31
Pale-Pink 12 0.37, 0.37
Lavender 13 0.32, 0.34
Real colour may look slightly different from this table

Measuring items: Driving condition: at 100V / 400 Hz, sine wave 25°C, 65% RH, under 2 Lux

Brightness & colour spectrum vary according to Frequency: the higher the frequency, the higher the brightness. However, colour spectrum remains stable between 60Hz~400Hz. Interestingly, the human eye does not perceive same brightness of each colour with same intensity. Colours in the 520nm~620nm are seen much brighter. Colour matching of LCD part & Keypad part is also essential to avoid colour distortion due to LCD acting as filter.

 

 

Inverter:

EL Lamps operate on alternating current. If direct current is used, an Inverter is required. SEIKO Precision offers besides standard transformer Inverters and high efficiency IC Inverters also individually designed types.

EL Lit area Type of EL Inverter required
100 cm2 ~ >DIN A0 EL Transformer
1~100 cm2
(High Brightness required)
EL Transformer
1~100 cm2
(Standard Brightness)
EL Driver IC

EL Transformers are generally adopted for large EL panels (over 100 cm2) or for applications requiring High Brightness (over 50cd/m2). However, EL Driver ICs are usually used for smaller EL films (up to 100 cm) because of their compact size, greater design flexibility & price. SEIKO Precision E.L Div. develops its own EL Driver ICs in collaboration with SEIKO Precision Semiconductor Division.

Please ask for details.

Essential parameters to define EL Driving Solution:

  1. Minimum Acceptable Brightness at end of operating life of EL
    (x Cd/m2 @ y Hours)
    Typical examples:
    Watches (5cd/m2@100 hours),
    PalmTop Computers (10cd/m2@ 4000 hours)
    Mobile (10cd/m2@ 8000 hours),
    Automotive (10cd/m2 @ 10,000 hours)
  2. Lit Area
  3. Colour
  4. Input Voltage 3V, 5V etc...
  5. Special effects (flashing...)
After confirming 1~4, SEIKO Precision can support you with your individual driving solution. Please contact us.

 

 

 

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