I'm planning to make a custom LCD made. The LCD has 128 segments. Now, in order to drive it, I have two options :
- Use 4 COM + 32 pins
- Use 8 COM + 16 pins
The MCU which I'm looking at (STM8L052R8) has support for 4 COM x 28 (112) or 8 COM x 24 (192). Since I have 128 segments, If I choose this MCU, then I'll need to go for 8COM config (8x16 = 128).
Many vendors have flatly told me that the viewing would not be good, and given me advice that 4COM would be better to view. Since I've little idea what they mean, I need better understanding of why this is so. And how bad would this viewing angle be, apart from other issues which I dont know of if 8 COM is used.
My expectation is its okay if the LCD has to be viewed in a 45 degree range.