Secrets behind the new light field tablet - The Lume Pad
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- Опубликовано: 22 июл 2024
- Switched off, you would think that this tablet is like many others on the market. But switch it on and it reveals a technology like no other tablet uses in the world. Underneath the surface of the display is a secret that makes a holographic like viewing possible. How the technology works is a secret that I suspect only the Leia company knows. However in this video I will show you what this technology does from my own observations. This is new technology that is just emerging, so we are at the infancy of what I see as an exciting new development. In this video I will discuss the potential as well as the limitations of this display.
The Lume Pad is sold by Leia.
Website: www.lume-pad.com/
Chapters
0:00 Start
0:36 Overview
2:54 Demonstration of 4 views
4:42 Close-up look
7:20 Reduction in Resolution
8:22 Zooming to pixel level
9:55 Hogel - holographic equivalent of a pixel
11:32 Animation of Hogel
12:45 Rotation of Hogel
13:35 Cross Talk / Ghosting / Leakage
17:30 Demonstration of Cross Talk
18:25 Ideal Viewing Distance
22:24 Summary
This illustration video is GOLD. Deserves much more viewers!
@y x thanks so much for your feedback. I appreciate it. Hopefully more people will discover this device - that's why I made the video.
Thank you for a great and informative review. You answered my questions and I can now make an informative decision.
Thank you so much for your feedback Ruby, much appreciated.
Great review and quite educative
Thanks Prashant, I appreciate the feedback
Excellent explanation of this great product! Thanks.
Thanks for your feedback, much appreciated Michael.
Great breakdown video
@mrlifted365 thank you for your feedback. Really appreciate it!
Thank You!
You're welcome! Thanks for watching.
Thank you for this very informative video! I am thinking about getting this tablet for my father who is a major 3D enthusiast. I think I'll buy it, but I hope that the company that makes these tablets won't abandon them too fast in regards to software and firmware updates.
Thanks you for your feedback. I'm sure your dad is going to like this if he is a 3D enthusiast! By the way, Leia have announced a major update that is coming out this week forums.leialoft.com/t/ota-update-1-3-31-is-coming-next-week-details/1244
@@ANAVision Thank you for the information about the update! I'm looking forward to it. I've ordered the tablet and it should arrive tomorrow already.
@@Haf1983 Hi. Just wondering how you like the tablet? This looks so fascinating.
Good work
Thanks. I appreciate your feedback.
very well made video
Thank you so much for your feedback, much appreciated.
Good video. Thanks.
Thanks for your feedback
Thanks for the video you saved me 300 bucks I forgot to say most 3d effects are of deph not much as things popping out unless they make a video where your focus is on the characters and then something off focus in the foreground shows while you're looking at the background but once you try to focus on the foreground the images look double example the rose petals falling on a SNSD LG commercial you're focus on the girl in the background petals fall and they look outside the tv but blurry when you try to focus on the petals they start looking double is like when you look at your hand close and the background looks double and then you focus on the background and your hand is double but when your hand is moving your brain put the images together and look smooth and with deph perception
Thanks 😊
You are welcome! Thanks for watching :)
can it play sbs/ hsbs movies encoded from 3d blurays? ive been using my rokit 3d phone for glasses free/xtal vr headset. this seems like a good middle ground
You will obviously need to rip and convert this to an SBS file. Once in SBS format it should then be possible to play like any other SBS or half SBS video.
Will you be looking at the recently released Lume Pad 2/Nubia Pad 3D? I would very much like to hear your comments on this device.
Absolutely! working on it now.
@@ANAVision That's great! Looking forward to your insights.
Superb technical content! You have outro but no intro? Thanks for the very informative video!
Intro at 0:25 in case you missed it. Hey, thanks for the feedback, much appreciated :)
Great Review!
It was about time that someone does a proper Review of a 3D Product without bashing the Technology they don't even understand because it's not Mainstream.
No, It's not a 3DS Screen!
There is a lot of misconceptions out there about 3D technology because it is not mainstream as you say. So I'm glad you found the video useful. Thanks for your feedback.
@@ANAVision any Time, I am an 3d enthusiast since i can think of and love my Lume Pad to bits, had a lot of 3d Devices already but the Red Hydrogen one as a Camera and the Lume Pad as a Viewer/ Editor is the Best so far, only one Device with a wider Camera Stereo Base is what I wish for. Or one with a third or fourth camera to take full Advantage of the 16 Viewports.
@@johanneshainer3460 Great to hear your passion for 3D. I agree that a wider camera stereo base is desirable and for precisely this reason I still use my FujiFilm 3D W3 camera. I've done a recent review of this even though it is quite a dated camera now. If interested you can see the review here: ruclips.net/video/G6fteia5Lm4/видео.html. Now a device with an array of multiple cameras - yes, that would be awesome!
@@ANAVision I absolutely agree with You that a Device with 4 Cameras would be preferable to allow a Viewpoint-Shift in every Direction by Calculation of the Inbetween Pictures. That would require either a different File Format which is compressed like the H4V, aka H264, or very High Resolutions to arrange the Views like on the Pictures used by the looking Glass. And most important a mobile Chipset or specified FPGA which can handle those BIG Data-Streams. So I guess we are stuck with Devices like the Finepix w1-3 at the Moment. I still hope that the Tech Leia has introduced gets the Broad Attention it deserves and doesn't end as a niche Product. Continental has the Sources to make that happen, as long as some big names as Tesla, Mercedes, BMW or Stellantis sell it in their Products. I am afraid the Tv Manufacturers only start to adapt that Technology if the Demand is extremely high trough a Billion Dollar Profit as Avatar was. Let's hope the Best and we get eventually a Camera that pushes the Displays to their Max Potential.
@@ANAVision I have seen You got a Lume-Pad too, did You ever try a Red Hydrogen one? Cool Camera!
Hello, a question. Why are the views repeated 5 times if each view is illuminated by a single light bulb? o Each spotlight contains 5 directions that allow you to repeat view number 1 5 times across the entire viewing width.
As explained, only the 4 central views should be seen and the rest towards both sides in darkness. Thanks
I've been wondering about this myself. This is a good question Christian and I'm not sure that I have the full answer. It is more or less an observation I made when analysing the display, but why this is done, or whether this is a technology limitation I'm not certain. I think ultimately this is a secret that only Leia could answer. Here are my thoughts on this though:
> If the technology allows control over this, this may have been a deliberate decision to repeat the views in order to have people from all angles have the potential of seeing something so that this is not just a single user experience, but a multiple viewer experience.
> However, the technology may not allow control over this. For example, comparing with lenticular technology, it does not allow control over the repeat views. There is no barrier that prevents the next repeating pattern from being viewed, thereby with lenticular technology you have no choice, the views will repeat. Perhaps the DLB (Diffractive Lightfield Backlighting) technology used here has similar properties to that of lenticular technology in that respect.
Best review I've seen on this topic!
Thanks for your feedback Robert, much appreciated.
Thanks for a very informative, well reasoned presentation!
With a view towards possible continuation, I would be curious about how usefull the cameras and software are for creating 3-D content :-)
Thanks for your feedback. It's interesting you say that continuation should be software as that is exactly my intent for my next video. I've done a Hardware review, now comes the Software review. So watch this space :)
@@ANAVision , I look forward to that!
My interest in hearing more about the capability of the lume pad for creating 3D content is related to work I have done recently, constructing left-right stereo images from a 2D photo + it's corresponding depth maps, something that we can very easily get out of many recent smartphones.
What I found with my 2 year old Huawei P30 Pro is that in many cases it is possible to make very nice stereo images, and as this doesn't seem to well known among people interested in stereo photography, I decide to write an article on my experience: kbqvist.wixsite.com/photoq/post/a-novel-way-to-make-stereo-photos .
The next chapter, which I hope to finish within a couple of weeks will feature a straight comparison of photos recorded using a Fujifilm Real 3D camera, and the Huawei P30 Pro, to highlight the pros and cons of each.
Karsten, very insightful articles, both of them. Thanks for sharing the experience.
That was a wonderfully in depth video on this very unique display. I had an HTC Evo 3D that used the same autostereoscopic display tech as the Nintendo 3DS - it had only two views and only one sweet spot to see the stereoscopic effect properly, although it is still amazing every time I pull out my old Evo to look at its screen.
This is an iterative step up from that earlier technology, going from two to four different views, which nobody else has revealed, so I very much appreciate that perspective (no pun intended)! That said, while their marketing folks make it sound like their "light field" is a 3D image with infinitely variable viewing angles, it's clearly not, and the 16x resolution loss comes at a pretty brutal cost. But it's still awesome tech!
The only thing you could have done to improve this video is to release one where you used a stereoscopic capture device (perhaps a second Lume Pad) to record some stereoscopic video of the Lume Pad in 3D so that those of us that still have 3D monitors (yes, that's me, too!) could see it in its "full glory" on a 3D RUclips video. That said, your description was so thorough that I have a full mental picture of how this will look anyhow.
Now if my wife will only buy one for me for Christmas, then I'll be all set! :)
I can view 3D SBS on my phone by crossing my eyes on the screen. There are hardly and SBS videos of this device which sucks. I really want this for 3D content. I do own many 3D movies.
I used to have Nvidia 3D vision for my gaming rig but I sold it and it was it was short-lived. My projector, Quest 2, and Nintendo 3DS XL are the only 3D devices I have left.
@Shadow Lynx, thanks for your feedback. I was actually thinking of making some of my videos in 3D so that you can see things more realistically. What you are saying is some confirmation of that. I will definitely consider this in the future. hope you get your Christmas gift :)
@icypirate11, I have a 3D projector also and use it to watch 3D Blu-ray movies mainly. Would be interested to know, what is your 3D projector solution?
What are these milimeters you speak of ?
Okay, so maybe I should have quoted in inches as well :)
At video location 22:18 I talk on the optimum distance for your eyes to be from the screen for auto-stereoscopic (3D) viewing. 8" - 16" inches or roughly a rulers length (give or take a few inches)
Amazing video. Does it work with oled displays? Does it only show 4 views and not 16 because 9f software limitations?
I don't think they should call it a light field display because its not a varifocal display, only an auto stereoscopic one
Thanks for your feedback. The Lume-Pad has an LCD display. You are correct about the 4 views - the 4 views are a software limitation, the hardware is capable of 16 views. Since I filmed this video, there is now software that has been written that actually takes advantage of all 16 views. It is a wallpaper and looks amazing. I have covered this in another video I recently recorded here: ruclips.net/video/GL5bqrrtnHk/видео.html
The point you make about varifocal is an interesting one. I plan to cover the varifocal aspects in upcoming videos when I cover holograms, as true holograms are indeed both auto stereoscopic as well as varifocal.
@@ANAVision Thanks. Do you think the autostereoscopic layer would work with oled displays?
@@adonisds From what I understand the technology uses a proprietary lighting layer that then shines through an LCD panel. So it is neither oled, nor is it a standard LCD backlight, it is something else altogether that produces this directional light. Leia refer to this as the proprietary DLB layer.
I have a 3d Samsung TV with active shutter glasses and the rockit 3d pro phone with lenticular screen and it's good with side by side movies at 2 hand distance from face (no glasses) reviews on that phone are made from guys who don't know about lenticular sterescopic and they try RUclips side by side made for VR glasses and is not compatible the phone works good with 3d movies available by torrent or converted from blue-ray each side looks long using the whole vertical screen on each side then the software built-in the phone extend the images into the right aspect ratio and interlace both pictures at the same time not like the tv which does it by intervals at a fast speed , other TVs with polarized glasses like those on theaters like the LG shows both images at the same time but also interlaced vertically for one eye horizontal for the other and the glasses have 2 different angles too that can see only one age at the time ..I haven't seen those TVs but im trying to get one
@robertsmith indeed there is lots of confusion about VR vs. SBS content out there. You are absolutely right that unfortunately some confuse the two and end up trying the wrong format with devices such as the Rockit 3D phone. As for the polarised glasses setup you mention, I have a projector setup that uses polarisers for left/right eye separation. I intend to do a video on this sometime.
Hi and very interesting. Is this crosstalk/ghosting you referred to the same horrible ghosting, blurring or even as bad as smearing if overdrive is turned on, I get on my AOC Q3279VWF (MVA) monitor? The pixel response time on the spec sheet for my screen is 5 ms though it's no where near that number more like 12ms+ as the blurring/ghosting is horrendous. I have to reduce black levels to dark grey to make pixel response time more bearable. Even though the ghosting can clearly be seen with an all black Windows desktop and simply moving a minimised window around in circles with my mouse. Or even just moving a larger white mouse cursor/pointer around in circles or across my black desktop. Please if you have any experience to help with what's the best current 32 inch or even 28 inch 1440 monitors on the market which have the fastest pixel response times to show very little to no ghosting, blurring ,smearing please let me know. My monitor before was a TN and I couldn't see much ghosting on it, though colours and viewing angles weren't the best. I do know from having watched some of CES2023 that Micro LED display technology will have zero ghosting, blurring as they use self illuminating pixel technology with no back-lighting needed. I'm not a huge fan of OLED as I feel OLED are a failed technology with burn in problem. What's your expert opinion thanks? I consider pixel response time to be the most important. I find current monitor technology is terrible with so many QC issues and well IPS having blurring as well as backlight bleed etc.
HTC EVO 3D had a screen just like this. Or at least very similar.
@ESSBrew, thanks for your feedback. Did you have a HTC EVO 3D? If so what did you think of it? By the way, the technology of the Lume Pad is interestingly very different to the HTC EVO 3D in that it does not use lenticular technology but a proprietary technology that can be turned on and off.
Also, why doesn't he compare the light field display 3-D quality or effect to, say, the 3-D effect one would see on a Visio-type 3-D television with passive glasses? Why does he not show a 3-D movie? Granted we'll only see 2-D, but at least we get to assess smoothness of parallax. Two serious omissions, imo
Interesting that you mention the Vizio passive-3D TV. Do you have one? That was quite a unique TV in that it didn't need active glasses. Most TV's needed active glasses so that in my mind was a step forward. The Lume-Pad takes that step even further by not needing any glasses.
As for For 3D movies, have a look at my new video on this where I discuss the LeiaTube application: ruclips.net/video/4oOi_NZpx6k/видео.html
@@ANAVision this kinda ties into what I said before, and what you replied before, about tedium vs engagement vs content. What would be engaging and informative simultaneously would have been comparisons to the Lumepad and the video TV. Why? First off, assume anyone who's gonna look at a Lumepad also has 3DTV experience. Secondly, wouldn't it be awesome if we the viewer can get some sort of idea about the quality of the 3D effect by having a mental image being compared to something we already have familiarity with, such as the 3DTV? In fact, I thought such a thing would be indispensable to the video.
There are other 3D displays that use barrier parallax and work perfectly in 2D. There are tablets and cell phones (HTC Evo 3d) that easily switch between 2D and glasses free 3D display and can be used as "normal" tablets or cell phones. So at about 1:52 into the video I'm thinking you don't know what you're talking about, but later you do make an in depth report. The Lume Pad differs mostly in using 4 images rather than 2, to provide more viewing angles and providing that variable angle view in the vertical direction as well when using 16 images. I'd say the term "light field" is hyperbole, 16 points represent a very limited field of view and is many orders of magnitude less than a true holographic vogel. The Lume Pad is a trade off between resolution and viewing angles, until we get much higher resolution and faster processing the trade off is a marginal improvement. Nonetheless, I look forward to creating 16 images in Blender for viewing in my Lume Pad, even at relatively low resolution. Maybe I'll take and arrange 4, 8, or 16 photo images but at 640x400 resolution, eh... although other displays have limited "sweet spot" viewing angles, they also provide higher resolution.
So…basically a big Nintendo 3DS display?
I guess one could say that Nitendo 3DS was one of the early early beginnings of 3D displays without glasses, but the Lume Pad uses very different technology, and also offers more lightfield views. Have to say though that the 3DS was quite cool :)
@@ANAVision was the 3ds lenticular instead of light field?
@@nna00100 yes correct, the Nintendo 3DS was lenticular.
@@nna00100 Technically the 3DS is parallax barrier. But yes, it's a different, older technology.
So the quality sucks it's a or even HD regular side by side 3d movies 1920x1080 takes the 2 images and interlaced them so each image is 1280x720 making a full HD in your brain , I Rather have the lenticular version because the effect vertically you cant see because your eyes are horizontal not vertical ..is a waste of resolution , anyways most movies available are side by side of only 2 images at 2 angles not 4
@robertsmith you are right, there is a trade-off between resolution and views. What you gain with views is the ability to move your head and get stereo viewing over a wider angle. This has a holographic type effect in contrast to a lenticular 2 view where your viewing angle is fixed.
Too complicated !
Some parts are agonizingly tedious, especially when discussing crosstalk. 5 minutes just to explain that some intel meant for one eye gets seen by the other, geez...
Was wondering about whether the detail comes across as tedious or informative. I took the approach of providing more rather than less and allow viewers to skip content not interested in. Hence my use of "chapters" to skip to content of interest. Wonder what others think? Should I be shorter and brief, or continue with full content. An example of where I attempted shorter content is in this video here: ruclips.net/video/4oOi_NZpx6k/видео.html
@@ANAVision I don't think being more informative is the issue. The trick is to produce a video that presents the material in such a way so that the viewer is always kept at rapt attention to the screen. In such an instance, video length does not matter.
An extreme case to illustrate the problem would be another RUclipsr I replied to who was being tedious to such a profound degree that watching just minutes of the video induced intense feelings of agony, similar to being tortured. In it, he was explaining how to apply silkscreen to a wristwatch dial. What could have been an engaging presentation that ran a long time instead turned into this:
"You should take the slotted end of the screwdriver and insert the blade axially into the head of the screw. Once the blade of the screwdriver is thus inserted, you'll want to apply a torque by means of a wrist action such that the energy from your wrist gets transferred into the head of the screw and in such a way that the screw body begins to rotate in the direction of the wrist motion. Continue with this wrist action for approximately 12 to 15 revolutions, after which time the screw body should be completely clear, or nearly completely clear, of the printing plate..."
Most other RUclipsrs, not so bent on torturing their viewers, would have merely said, "Pick up the damn screwdriver and unscrew the screw..."