||July 27, 2016|
||CFAX12864U and CFAX12864U1 series backlight improvements.|
||The white LED backlight of the Crystalfontz CFAX12864U and CFAX12864U1 series of compact graphic display modules is changing as a result of manufacturing improvements of white LEDs and backlight assembly. The changes are as follows:|
Forward voltage: Old value 3.5v -> new value 3.5v – NO CHANGE
Supply current (typical): Old value 48mA -> new value 40mA – 17% decrease
Luminosity (typical): Old value 150 cd/M^2 -> new value 570 cd/M^2 – 280% increase
Uniformity (typical): Old value 80% -> New value 90% - 12.5% increase
Note: With 16mA of supply current, luminosity is rated at 250 cd/M^2. This is a 66% decrease in current with a 66% increase in luminosity.
Display modules with a date code of 08/01/16 (August 01, 2016) will have the new backlight. Date code prior to 08/01/16 will have current backlight.
To determine the date code, please see the attached document
How to read CFAX12864U and CFAX12864U1 Date Codes.PDF
||As part of our continuous improvement, design changes have been made to the white LED backlight of the CFAX12864U and CFAX12864U1 for improved luminosity, and reduced current profile.|
||Reduced current requirements values will effect current driving circuitry. |
Increased luminosity values will effect visual appearance.
||Test engineering samples when available to evaluate backlight circuitry changes and settings for visual consistency.|
||CFAX12864U and CFAX12864U1 display modules with new backlight should begin shipping at the end of Q3 2016.|
Engineering samples for testing / validation will be available during this same time frame.
||No price change is currently scheduled.|