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

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.

                                                                                         

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