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RGB LCD Display Temperature spec?
Moderators: adafruit_support_bill, adafruit

RGB LCD Display Temperature spec?

by OhNoItsMrBill on Mon Dec 31, 2012 7:03 pm

Is there a complete specification for the RGB LCD Display shield? I used it with a temperature data logger and then display blanks at a relatively high temperature. I was expecting typical electronics temperature range of 32 to 104deg F. However, the LCD blanked at about 45 deg F. This was even with full contrast.

Thanks,
Bill
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Re: RGB LCD Display Temperature spec?

by adafruit_support_bill on Tue Jan 01, 2013 7:44 am

The electrical characteristics of the LCD fluid vary with temperature. Typical LCD display ratings are in the 0C - 50C range.

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Re: RGB LCD Display Temperature spec?

by OhNoItsMrBill on Tue Jan 01, 2013 8:55 pm

Thanks, Looks like my battery was dead, so the the display was dropping out. Works better with full battery.
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Re: RGB LCD Display Temperature spec?

by adafruit_support_bill on Wed Jan 02, 2013 7:13 am

Yea, a cold, weak battery and a cold display would be a bad combination. The display needs a higher drive voltage as the temp drops, and battery output tends to drop in the cold as well.

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