LED display shines through

justjim1220

Make sure the mirror is right up against the monitor screen, otherwise, you may be getting a reflection from the monitor on the back of the mirror causing shadows.

hannes23

Thank you for your reply.

The mirror is laying directly on the display (I am in a pre-assembly state). I think the led monitor can not display true black due to it’s backlight.

I am thinking about something like a black foil between monitor and mirror, which makes the whole screen darker and then set the contrast to maximum?
Maybe someone had similar problems and got a solution. Or a suggestion for a better 15’’ display?

francislallen

Ensure the mirror is straight facing the screen, else, you might get a reflection from the screen on the back of the mirror causing shadows. Check more.

maiky09

Did someone find any soltion. PLEASE HELP US…

bhepler

Unfortunately, I think your only options are to either 1) replace the glass with a type that doesn’t transmit as much light through it (lower % rating) or 2) replace the monitor with a better quality one.

maiky09

@bhepler Thanks for the reply. That’s right, I’ll have to change the monitor. Can you give me some specifications to keep in mind when buying the monitor?

A Former User

@maiky09
LP156WH2 insists 200nits as brightness, but usual LED panels also have 200~250nits. You need to choice higher contrast than LP156WH2(1:400).
Of course, There could be nicer panels - By example, Apple - 500nits, 1:1350 Lenovo X1 Extreme(1G) UHD - 500 nits, 1:1414. You can compare those values as reference which panel you will buy.
WARNING RPI can only handle up to FHD(1920*1080). So above panels mentioned are useless for RPI
Anyway the absolute answer will be OLED panel, it could give a real Black. Unfortunately that is still too expensive for MM.

maiky09

@Sean Thank you very much for your reply. Wou this makes me more difficult and more expensive.

Serge

This post is deleted!

Serge

@maiky09 I have found that displays made with PLS technology emit better “dark” color as compared to displays made based on the IPS (and TFT) technology. Think about it.