1.Operating temperature and storage temperature:
Operating temperature 0^oC~50^oC,storage temperature -20^oC~70^oC.
Wide range lcdoperating temperature -30^oC~80^oC,storage temperature -40^oC~100^oC.

2. Contrast: TN LCD :DUTY 1~1/8,Cr>5.
DUTY 1/8~1/16(1/8 included),Cr>3.
STN LCD:Cr>3 for blue and gray type
Cr>5 for yellow, green, yellow and green type

3. Response time:
TN LCD:Rising time<250ms;
Falling time<300ms.
STN LCD:Rising time<400ms;
Falling time<400ms.

4. Viewing angle:TN LCD:DUTY 1~1/8>30°;
DUTY 1/8~1/16,>25°.
STN LCD:DUTY>1/64,>50°;
DUTY<=1/64,>30°.

5. Threshold Voltage:
Minimum 0.7V for TN type under normal atmospheric temperature, minimum 0.8V for STN type.

Threshold voltage may rise if LCD has a wide range temperature.