Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

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Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby eliasbakken » Sat Jul 15, 2017 3:32 am

Hi! I've been working on a couple of new HDMI compatible LCD screens for a while,
and I just wanted to ask if there's something similar to this already in the Odroid community?

One is a 5.9" 1080p and the other is a 4.8" 720p.
Both are cell phone displays, so they have great color and luminosity.

I have a Odroid U3+ myself, and I've discovered that the blending stage of the HDMI driver has a 1080p limitation (the screens are in portait mode), even though the
framebuffer and all other stages of the pipeline seem to support it, so that board does not work, but more modern
SoCs (Exynos5422 etc) work fine.
In fact I tried it with a friends XU4 and it worked great!
https://plus.google.com/+EliasBakken/posts/VwwdLpPwqpS

I know there are a few screens out there which are similar, but most of them have pretty poor resolution
and contrast, so that's why I decided to go for a cell phone display instead. The downside is that you have to have a fairly complex HDMI
peripheral/driver, but most modern SoC boards have that now so it's not a big issue any more.
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby elatllat » Sat Jul 15, 2017 10:20 am

What's the price for the 5.9" 1080p? (I assume the $99 is for the 720p version)

The only similar products I found were 5x more pricey than a whole 1080p phone ($200).
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby eliasbakken » Sat Jul 15, 2017 5:03 pm

Both will be $99 as normal retail price, but there is an offer during the Kickstarter campaign, so early birds go for $79 and then it's $89 after that.
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby elatllat » Sat Jul 15, 2017 11:39 pm

Nice, the 1080p option seems to be uniquely competitive, the 720p option is close to existing products.

Any technical details on the 1080p option (glass type, fps, contrast ratio, color depth, viewing angle, power draw min/max, etc)?
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby elatllat » Sat Jul 15, 2017 11:49 pm

There was this
https://www.kickstarter.com/projects/25 ... -raspberry
But it did not get enough exposure... you should contact @Odroid, Adafruit, etc get them to buy batches for resale, shamelessly advertise everywhere.
I'd also be interested in a 4k version to plug into the C2 or the 2 new boards that are coming later this year.
Last edited by elatllat on Sun Jul 16, 2017 10:54 pm, edited 1 time in total.
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby eliasbakken » Sun Jul 16, 2017 1:07 am

Great statistics!

Adafruit was very insterested in the MS1, but the deal stranded due to the panel going out of production.
They might be interested in this as well, so I'll contact them as soon as I know the campaign is successful.

The other KS you are linking to seems to be interesting as well, but it might have stranded on exposure yes.

Here are the key parameters for you:
Big (5.9"):
-----------
Resolution: 1080x1920
FPS: 60
Color mode: 24bit
PPI: 376.2
Brightness: 400 cd/m2
Contrast ratio: 1000:1
Viewing angle: 80 deg.
Power draw: 600 mA (max)
Active area: 72.9(W)×129.6(H)
Weight(approx): 95 g
Outline Size: 82(W)×150(H)
Touch points: 10


Small(4.8"):
------------
Resolution: 720x1280
FPS: 57 (max)
Color mode: 24bit
PPI: 307.9
Brightness: 500 cd/m2
Contrast ratio: 800:1
Viewing angle: 80 deg.
Power draw: 520 mA (max)
Active area: 59.4(W)×105.6(H)
Outline Size: Not yet specified
Touch points: 10

I'm not sure what the type of glass is used, but they specify G+G meaning Glass cover + Glass touch panel. The bonding is OCA (glass glued on to the LCD) which is also
quite exotic for these types of displays.
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby nicksydney » Mon Jul 17, 2017 2:39 pm

eliasbakken wrote:In fact I tried it with a friends XU4 and it worked great!
https://plus.google.com/+EliasBakken/posts/VwwdLpPwqpS



Was this tested running on Android or some other Linux distro ?
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby eliasbakken » Mon Jul 17, 2017 5:08 pm

It was tested with an Ubuntu or Debian distro, definitely not Android!
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby eliasbakken » Mon Jul 17, 2017 9:28 pm

I asked my friend, it was an Armbian, so that is Debian then.

Here is the preview for the Kickstarter btw, should go live at 8 pm CET = 3 pm ET:
https://www.kickstarter.com/projects/19 ... n=dca58264
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby elatllat » Mon Jul 17, 2017 11:23 pm

Another data point; there is a 1024 x 1280 eink for $262
http://www.pervasivedisplays.com/kits/mpicosys102
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby elatllat » Tue Jul 18, 2017 4:14 am

eliasbakken wrote:Both will be $99 as normal retail price, but there is an offer during the Kickstarter campaign, so early birds go for $79 and then it's $89 after that.


Looks like it's $93 not $79.
Still a good deal; got one anyway.
12% funded in the first hour.
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby eliasbakken » Thu Jul 20, 2017 12:57 am

Wow, the dollar really fluctuates, so I see the early bird is $83 instead of $79 with Googles currency converter. Plus $10 for shipping is $93, yes! It was $79 at the time the rewards were written!
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Re: Two new 5.9"/4.8" HDMI screens, perfect for Odroid?

Unread postby elatllat » Sat Jul 22, 2017 6:21 am

81%

Just need a few more backers, did you make some noise over on the rpi form and stack exchange?
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