Monday, January 14th 2019
Hisense Introduces New Display Tech at CES 2019 With ULED XD
China-based Hisense came out at CES 2019 with quite an ingenious new display solution that has (speculatively) a much better chance of faster PC monitor integration that OLED. OLED's implementation in PC monitors has been excruciatingly slow despite recent developments of the technology - mainly due to some underlying problems for PC's mostly fixed-image use-cases with its UI elements. As a result, display technology in the monitor space has been somewhat stagnant. Hisense, with its dual-panel ULED XD solution, whoever, could have a much cheaper and easier to implement solution that could bring another technology player to the PC monitor market.
The ULED XD solution basically crams two panels in front of the LED array. One is a 4K, RGB VA panel. This is your run-of-the mill implementation. However, there's a second panel sandwiched between the RGB and LED array in the form of a greyscale, 1080p resolution panel. What does this particular implementation offer, you ask? Well, it just so happens that different lighting conditions across the same RGB image are expanded upon by the grayscale monitor, even if it works at a lower resolution - it only serves to increase contrast if high and low luminosity areas, with black areas being supported by the blacks of the grayscale monitor. And even at that resolution, look at these as local dimming zones - over 2 million of such across a single panel.
Of course, a fancy new technology in no way means fast adoption from the market. Manufacturing costs, panel yields, and many other factors come into play - especially considering the PC monitor's required features. But that's where this tech actually could have an advantage over, say, microLED - it's just much cheaper to produce, easier to implement, and doesn't have the same yield constraints as that technology. A 4K RGB display is today a run-of-the mill production, and a 1080p grayscale panel is expectedly even more so. Whether this solution is even capable of employing VRR technology is something else entirely - two panels will have to be perfectly synced for that to happen, but then again, they'll have to be perfectly synced to display any image as well.
It's an interesting new take on old technologies, which Hisense says allows the TV (the product on display at CES 2019) to achieve more than 2,900 nits of brightness and the "highest dynamic range" seen on an LCD panel. Inspiring stuff.
Source:
Engadget
The ULED XD solution basically crams two panels in front of the LED array. One is a 4K, RGB VA panel. This is your run-of-the mill implementation. However, there's a second panel sandwiched between the RGB and LED array in the form of a greyscale, 1080p resolution panel. What does this particular implementation offer, you ask? Well, it just so happens that different lighting conditions across the same RGB image are expanded upon by the grayscale monitor, even if it works at a lower resolution - it only serves to increase contrast if high and low luminosity areas, with black areas being supported by the blacks of the grayscale monitor. And even at that resolution, look at these as local dimming zones - over 2 million of such across a single panel.
It's an interesting new take on old technologies, which Hisense says allows the TV (the product on display at CES 2019) to achieve more than 2,900 nits of brightness and the "highest dynamic range" seen on an LCD panel. Inspiring stuff.
18 Comments on Hisense Introduces New Display Tech at CES 2019 With ULED XD
In the interview guy says one of the problems is image processing for the solution and challenge was to make it work in under 25ms. That actually does not sound too good.
Panel, at least the top one, they said was VA.
There has been no talk about prices, much cheaper might not pan out in exactly this way. This is still two LCD panels/layers bonded together - by a new process they came up with.
MicroLED is not necessarily the right comparison here. Samsung's 75" 4k MicroLED screen is state of the art in terms of density.
That 2900 nits might just be necessary with this type of screen and not the output. Last time someone tried this a few years ago they said each LCD layer will absorb about 30% of brightness.
The comparison to microLED comes only in the yield and manufacturability of said solutions - while density is incredible for microLED, it's currently the most difficult process available for a display tehnology, if I've been reading things correctly. You're still correct on all counts.
And... response time... I mean, we're first and foremost looking at repurposed TV displays. Not high refresh monitors. 25ms is quite standard in that space.
For me personally this panel was the most interesting bit of CES '19
very impressed with Hisense though, so if price is within range and it looks good comparable to Samsung QLED, i might bite. i am still leaning towards Samsung QLED though for my playstation 5 tv i plan to buy, but who knows. thats still awhile away.
Anyway, if Sharp had RGBY rolling for a while back in the day, why hasn't anyone gone and properly done RGBW yet?