(2) Electrical and optical characteristics
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| Ta = 25°C |
Item | Symbol | Meas. condition | Min. | Typ. | Max. | Unit | |
Forward voltage | VF | IF=90 mA | 3.8 | 4.1 | 4.4 | V | |
Reverse current | IR | VR=8 V |
| ⎯ | ⎯ | 0.9 | mA |
(3) LED backlight connection diagram |
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| LEDA |
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| Number of LED | |
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| chips=20 | |
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| LEDC |
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(4) Brightness (panel upper side) |
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Item |
| Symbol | Min. | Typ. |
| Max. | Unit |
Surface brightness |
| BP | 1.0 | 2.0 |
| ⎯ | nit |
(Center of LCD panel) |
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Measurement conditions and a measuring instrument are: |
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žTa=25°C±3°C
ž30 to 85%RH
žIF= 90 mA
žfFRM=71.4 Hz
žVLC: Optimum LC drive voltage
žDisplay OFF (Entire display data=“L”)
žMeasured 30 minutes after LED lights
žMeasuring instrument: BM - 7 (TOPCON)
(5)Life time
Item | Measurement conditions | Standard | Unit |
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Life time1 | Ta=25°C±10°C | 50,000 or more | hrs |
| IF=90 mA |
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1Definition of life time: The time until the brightness decreases to one half the initial brightness.
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