What characteristics do I need to look for in an LCD to ensure it is easily readable in the daytime
Adding more info: Low power, smaller size < 4" diagonal, either monochrome or color. Bitmap , not character.
Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. It only takes a minute to sign up.Sign up to join this community
Reflective LCDs are available, the Palm IIIx PDA I used some years ago had one. It gets more readable with high light levels!
The only displays that I would consider daytime viewable are organic LEDs. Expensive but excellent contrast and saturated colors.
Most character module LCDs are transflective with an LED backlight. In sunlight or good ambient they are easy to read.
In low ambient with the backlight on, they go into three transmissive mode and are readable.
I think dark blue digits on the anti freeze green polarizer probably has the highest contrast in sunlight or ambient.
Graphics modules have less contrast and reduced viewing angle as the pixel on time is shorter due to higher much rate.