I received the white 4014 LEDs ! I couldn't wait to try them.
My 7 segments assembly is about as wide as the TIL311 and the digit is about 2x bigger, more readable (IMHO) even though it lost some charm.
Another important aspect (for me) is the very thin profile. That's an excellent choice for my expected use :-)
These LEDs can output 200mW so they are not in their expected application domain. A CR2032 (3V Lithium coin cell) makes lights it very brightly. The good part though is that they are performance-optimised so they can shine with very little current.
So the advantages :
- Bigger digits
- lower power consumption
- very thin
- the white light is more "modern" (and daltonian-friendly)
- oh and very cheap too!
I now have to see in practice how the visual aspect works, I will have to tune things for more comfort. I'll see if a filter (white paper ?) is necessary...