Datasheet

DEM 20233 SYH-LY Product Specification
VERSION: 2 PAGE: 4
8. BACKLIGHT CHARACTERISTICS
(Ta = 25°C )
Item Symbol Condition Min Typ Max
Unit
Forward Voltage VF IF=580mA 3.8 4.0 4.2 V
Reverse Current IR VR=3V --- --- 10 uA
Luminous Intensity
(Without LCD)
LV IF=580mA 165 220 --- Cd/m
2
Wave length(Without LCD) λρ IF=580mA 569 572 575 nm
Color Bottom YG
Note:
when the temperature exceed 25°C, the approved current decrease rate for Backlight change as the
temperature increase is: -0.36x116mA/°C(below 25°C, the current refer to constant, which would
not change with temperature ).
9. ELECTRO-OPTICAL CHARACTERISTICS
(Ta = 25°C )
Item Symbol Condition Min Typ Max Unit
Ta = -20°C 3.8 4.0 4.2
Ta = 25°C 3.6 3.8 4.0
Operating Voltage
Vop
Ta = 70°C 3.3 3.5 3.7
V
Tr --- --- 250 ms
Response time
Tf
Ta = 25°C
--- --- 250 ms
Contrast Cr Ta = 25°C --- 3 --- ---
θ
-20 --- +35 deg
Viewing angle range
Ф
Cr≥2
-30 --- +30 deg