[Android Head-Units] Scopesys:
WARNING? Long -- do not read unless you are really interested in my personal thought on this subject.

I have taken the HU apart to check out the LCD panel part. It is custom to that model, and not a readily replaceable display to a brighter panel.

So I have put modifying it on hold, and have explored some other ways to improve the appearance of the display.

(1) Tinted my Windows (they had no factory tint) .. That helped in so many other ways as well.

(2) Diagnose what was actually being reflected, which was interesting and not what I had expected.

The reflection you see when looking reasonably straight on into the display, is the reflection of what is directly perpendicularly in front of the display.

If you look at a modern car HU, they now tend to be mounted quite high up, but no longer is a shaded Tunnel/Hole.

Instead, the are mounted at an angle to point up at the inner ceiling of the car, which optimally is a dark color, and therefore is not throwing much reflective light onto the front of the Glass.

I had always incorrectly assumed, it was the direct sunlight, shining through the windows onto the panel, but this is only part of the reflection problem.

If you get a sheet of white paper, and move it around about 2 feet from the display, you should clearly see, that when you get the paper into a perpendicular position in front of the display, that the reflection from that white paper is the major cause of not being able to read the screen ,

Replace that white paper with a Mat Back sheet, and the display becomes amazingly more readable,

This is why the manufacturers now slant their units to be pointing up at the ceiling, between the drive and passenger seats.

Anti Reflective Films: I have yet to find a decent, effective, anti reflective film.

Most being sold are to help prevent scratch damage to the front glass, and if anything, are actually more reflective than the glass itself.

Manufacturers can get a pretty good anti reflective coating onto Glass (example, a good Picture frame glass, or car dashboard glass), but it must be a lot more difficult, or cost prohibitive, to get a decent anti reflective coating onto a cheap $10 screen protective film.

Since my unit is a replacment for the 2din radio in a 30 year old (Classic ?) car, and is located low in front of the gear level, and not higher up as in most modern cars, I have made compromises.

Even it it was Highly Bright & Readable, looking down at it is a major distraction of taking your eyes completely off the road, so I have concentrated now on making the unit more controllable by the addon steering wheel Buttons, and with Google Assistant control, that there is now seldom a need to even look at the unit, especially for any length of time, or to perform any complex, distracting operations.

This approach is working well, and as time goes by, I am finding I am getting far less concerned about the lower brightness display.

Also, since my Unit has Video Out, I am considering mounting a small Video screen up in my Instrument panel (Probably covering the Tach, and having a nice bright display there that I can see while still looking ahead through the windscreen. The other option is a nice bright Heads Up display, throwing the Information onto the Windscreen, just like the Air Force Fighter Pilots have in their jets !!

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SHORT Answer : No, still a work in progress

---------- Post added at 11:08 PM ---------- Previous post was at 10:52 PM ----------

My GA2170B came with a film already on the screen (I think that was just a factory/shipping anti scratch protective film), and a separate, user installable protective film, that claimed to be anti reflective, but did not appear to do much to top reflections.

Manufacturers poor attempt to compensate for what they must realize is a "cheap sub standard brightness screen" -- but you get what you pay for.

You want something really nice and high end, be prepared to drop $1000+

I wish the glass on the Eonon was like the Glass on my 30 year old car's Instrument panel.

It has NO RELECTION at all, and when it is clean, you cannot even see that it is there. It looks like you can just reach out and physically touch the needles of the Gauges, even when there is bright sun shinning in directly onto it.

All the sun does is to make the Needles and Gauge Scale brighter !!