The 7" is listed as 400 nits (Cd/m2) which is not great for sunlight readability.AndersG wrote: ↑Thu Jun 21, 2018 6:48 pmWell, my thought was that current consumption increases with screen size. I did look at the Pi 7" screen, but have not seen it IRL. I have heard that it has a very low brightness though, but I have not seen any firm figures on cd/m2 for the "7 pi
I have mailed comfile asking details of power draw. The price seems OK. After all, a dedicated chartplotter costs 500-1000€
[ETA]A screen’s brightness, or luminance, is measured by number of nits. Nits is more scientifically referred to as Candelas (candlepower!) per meter squared (Cd/m2), but display manufacturers generally list nits in their spec sheets. The higher the nit spec, the brighter the display.
Most indoor LCD displays are 300 to 350 nits, which look sharp and clear in a dimly lit room. For an equally vivid picture, an outdoor display must be at least 400 nits—but plan to install it in a shadowed, protected location, like under an eave, or facing east with only morning sun. If you’re going to place a screen by a pool, in the middle of a plaza, or facing west, it must be at least 700 nits to appear bright and readable in direct sunlight.
https://mytechdecisions.com/video/under ... -displays/
Are you worrying about power consumption? High brightness screens are going to burn through batteries much faster than a Pi alone would do. The low power option is some sort of eInk or transflective LCDYou can definitely view this screen outdoors. Emitting up to 525 nits, the Latitude 7212 beats the 287-nit category average and shines far brighter than the 376-nit ThinkPad X1 and the 396-nit Surface Pro. The iPad Pro gets even brighter, at 555 nits. Although the Latitude's screen gets really bright, its colors still darken when viewed from 30 degrees to the left and right, though the display is legible and brighter than many other laptops and tablets at those angles
https://www.laptopmag.com/reviews/lapto ... eme-tablet