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PIXEL LOSS ON FEATHERWING OLEDS
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PIXEL LOSS ON FEATHERWING OLEDS

by dgries on Sat Sep 25, 2021 2:55 pm

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We are experiencing an unexpected quality problem in several installed products using the Featherwing OLED. The displays are losing contrast in many of the dot elements, causing the characters to appear faint and non-continuous after several hour of use.
Has Adafruit found this problem from other customers? Does the Soloman Systech SSD1306Z driver or the univision Technology UG-2832HSWEG02 display have a history of life expectancy issues?
Please respond so that our customer installed base can be advised of plans to resolve this issue. I have also submitted this information to support@adafruit.com.

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Re: PIXEL LOSS ON FEATHERWING OLEDS

by dgries on Mon Sep 27, 2021 12:33 pm

As a reply to my own post -- I have found the Univision specification which states a life of 10K hours under normal room temperature. It is now obvious that this display cannot be left ON continuously, but rather it must be turned on for perhaps 1 minute upon receiving a user requested input. This would greatly extend the pixel life beyond the 10K hours glow time.

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Re: PIXEL LOSS ON FEATHERWING OLEDS

by adafruit_support_carter on Mon Sep 27, 2021 4:48 pm

Correct. That's a general, and known, issue with OLEDs.
https://learn.adafruit.com/monochrome-o ... aq-3026324

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