Sunlight readable 3,5-4 inch display for micro or raspberry

[TrendX]

Good day to you all!

I'm looking for a sunlight readable color display that I can connect to a raspberry or arduino for a in-car project. I got myself a nextion enhanced before but the 200cd/m² are simply not enough. You can barely see the contents even on a cloudy day. The best thing I could find is a outdated FTDI VM800 with 500cd/m² but these don't allow landscape mode without much hassle.
I'm hoping someone here tried something similar and could share his or her experience.

Greetings and best regard from germany,
TrendX

[cheater]

Any chance you can put a shadow hood around the display to make it easier to read?

[TrendX]

Any chance you can put a shadow hood around the display to make it easier to read?

Could do, but as the display sits on top of the dash it isn't realy a suitable solution. Even less if you're driving with the sun behind you.

[TrendX]

I kinda found a solution, New Haven Displays seem to have some useable displays for my purpose.

Sadly they are rather expensive, so I'm still open for suggestions on some cheaper displays.

[SiliconWizard]

If you want something really "sunlight readable", consider at least 800 to 1000 cd/m2.

You didn't mention what kind of resolution you were after. Also, if you're going for a RPi solution, a HDMI interface would probably make more sense.

I've found such panels on Aliexpress a few years ago. You may want to take a look. Now chances are you'll find some kind of LVDS panel, that can be driven either directly (if you can) or through an adapter board such as HDMI-LVDS. If you're looking for a display module with some kind of higher-level controller (such as those you typically find on SPI displays for instance), it's going to be much harder to find something with this kind of brightness. Or it will be expensive.

I'd take a look at Matrix Orbital. They have a number of high-brightness TFT displays for reasonable prices. For instance:
https://www.matrixorbital.com/mop-tft320240-35g-ips
or this with a HDMI interface and a touchscreen: https://www.matrixorbital.com/htt50g-ips

[spostma]

ePaper displays are excellent in sunlight, and not too expensive.
Two- an three colour versions also exist.
Also have a look at smart barcode badges with ePaper displays.

[TrendX]

If you want something really "sunlight readable", consider at least 800 to 1000 cd/m2.

You didn't mention what kind of resolution you were after. Also, if you're going for a RPi solution, a HDMI interface would probably make more sense.

I've found such panels on Aliexpress a few years ago. You may want to take a look. Now chances are you'll find some kind of LVDS panel, that can be driven either directly (if you can) or through an adapter board such as HDMI-LVDS. If you're looking for a display module with some kind of higher-level controller (such as those you typically find on SPI displays for instance), it's going to be much harder to find something with this kind of brightness. Or it will be expensive.

I'd take a look at Matrix Orbital. They have a number of high-brightness TFT displays for reasonable prices. For instance:
https://www.matrixorbital.com/mop-tft320240-35g-ips
or this with a HDMI interface and a touchscreen: https://www.matrixorbital.com/htt50g-ips

I'm looking for sunlight readable as in "readable in a car driving on a sunny day".

Resolution should be crisp. It doesn't need to be RPi campatible, it would just be easier for me as a beginner. Basically I want to receive and send CAN packets to monitor and control functions of a vehicle. My initial experiments were done with a arduino nano and the Nextion, but I wouldn't mind exchanging it for a RPi, STM32 or others.
I saw a prototype once that used a FTDI VM800 dev board and a homemade STM32 interface. Worked pretty well and was easily readable with the vehicle driving on a sunny day.

[TrendX]

ePaper displays are excellent in sunlight, and not too expensive.
Two- an three colour versions also exist.
Also have a look at smart barcode badges with ePaper displays.

Had that idea as well, but the refresh rate is too low for my purpose.