AUO’s microLED Displays at DisplayWeek 2024

Hi, Chris Chinnock for Insight Media at DisplayWeek 24. I’m in the AUO booth and I’m going to look at their microLED devices. All of the microLED displays that AUO is showing are all based on devices that are about 30 microns in sized or so, all use LTPS backplanes and most are on glass substrates. There is one flexible one that’s on polyimide substrate. So, let’s take a look at what they’re showing.

Over here is the largest display that they’re showing. This is a 60-in transparent display in a retail application. So obviously you’ve got some physical objects in back here and the transparent microLED display in front. This is a tiled display made from 16 inch modules or so. I’ll put up the specs on these individuals when I move through the video.

Over here is what’s going to go into an automobile. It’s a kind of a textured center console display or passenger display. The whole idea here is you have this kind of wood grain looks and the display behind it can go on or off obviously. It kind of gives a nice feeling in the vehicle. What’s nice about this particular one is the transmissivity is up around 80%, much higher than what some other companies are showing.

Over here is their Privacy solution. This is the same 21inch active matrix microLED display but now you’ve got a separate LCD panel that goes in in the stack over on this side. This is kind of a zonal approach so you can have a zone here, zone here, zone here or zone here that can be controlled by the driver or the passenger I presume. If it’s designed for the driver position, this would be in front of the passenger and the Privacy Film is engaged now and there’s it’s very low transmittance. I think it’s about half a percent of transmission, so it works very well.

Here is a casino implementation using the 16-inch modules that were used in the 60-in one we saw back there. But what’s different in this one is they have a second LCD panel in back of it. It’s about an 8 mm separation or so and the idea is to give a little bit of depth to it. This is not doing depth by stereoscopic means or any kind of auto stereoscopic display. This is a dual layer display, but you can now use the microLED in front to give it that punch with the LCD in the back.

Over here is basically another version of this but now integrated with touch capabilities.

Here’s another automotive application, a 13.5-inch microLED, obviously transparent. The idea is this would sit on the dashboard but have visibility through the windshield. It’s not quite a HUD, it’s not quite CID display. It’s kind of a composite I guess between them. This is a different concept this is actually pretty cool. So, this is the same transparent display but with an opaque background or backplane. They’ve added a camera module and when it comes back on you should be able to see me filming this. It’s integrated in back of the transparent microLED as a single sensor unit with its own lensing application. The reason they did that is because these are the kind of things that are already ready to go in the automotive environment. They could potentially start to change this to instead of having a monolithic CMOS sensor there, which can see right there. It’s way up kind of up here in the top middle is where this sensor is. So, they could distribute that sensing CMOS capability between the spaces of the microLEDs, if you will, because there is space between them.

Over here is perhaps their most important display. This is a 31-inch single panel, single module. Anything of this size by anyone else is made with a series of smaller tiles. This is a single tile, if you will, so 31 inches. It also has three sides for tiling together. There are driver circuits down here in the bottom so you could make a 2xn video wall if you will. It also has this ART surface treatment, so you can see there’s no reflections coming off. It’s a very matte surface and ambient light rejection surface. I guess the pixel pitch is about 0.6 mm it says right now. If you wanted to make this a kind of desktop monitor it would have to go to something smaller, about 0.3 mm or so.

Over here is their foldable microLED. This is the one that’s based on polyimide technology. It has a lot of reflections on it though. I mean it’s a nice concept but it does have a lot of reflections so they should put some kind of anti-glare anti-reflection coating on that as well. I think that is all the microLED displays in the AUO booth. Chris Chinnock for Insight Media.

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