AOC AGON AG485UD2 Announced in China with 48″ OLED Panel and 138Hz

AOC China have unveiled their new AGON AG485UD2 display, a large format 48″ OLED screen in competition with a pretty wide range of other similar options from other manufacturers and an update to their previous AG485UD display it seems. The AG485UD2 features a 3840 x 2160 “4K” resolution combined with a 138Hz overclocked refresh rate (120Hz native). There are other familiar OLED-related specs here like a 0.1ms G2G response time and 1.5 million:1 contrast ratio, figures which should be pretty realistic given the OLED technology.

In other specs the screen offers a wide colour gamut covering 100% sRGB and 98.5% DCI-P3. AOC also list a 10-bit colour depth and 450 cd/m2 brightness (SDR) although keep in mind this will involve ABL. A full screen (100% APL) brightness of 135 cd/m2 was listed for the previous AG485UD but we have not seen the spec for the newer model yet. For HDR brightness the older version can apparently reach 900 nits (3% APL) but again we’ve not seen the spec for the new model. The per pixel dimming of the OLED panel should offer excellent HDR performance as well without any blooming or halos. It supports the HDR10 standard only.

The stand is more versatile than some other screens of this size with tilt, height and swivel offered, making it more suitable as a desktop monitor if you can live with the very large screen size.
For video connections there are 1x DisplayPort 1.4, 1x HDMI 2.1 and 1x HDMI 2.0 provided along with 4x USB data ports and also a USB type-C which included DP Alt mode. HDMI 2.1 is mentioned as supporting 48 Gbps but other capabilities like HDMI-VRR and ALLM for instance are not listed. A KVM switch function is supported and there’s some typical Light FX RGB lighting on the back of the screen too. There are 2x 10W integrated speakers with DTS sound along with a headphone, mic in and mic out connection.
More information on release in other regions as and when we get it.
We may earn a commission if you purchase from our affiliate links in this news piece – TFTCentral is a participant in the Amazon Services LLC Associates Programme, an affiliate advertising programme designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com, Amazon.co.uk, Amazon.de, Amazon.ca and other Amazon stores worldwide. We also participate in a similar scheme for Overclockers.co.uk, Newegg, Bestbuy and some manufacturers.
Stay up to date
Please give us a quick subscribe on our growing YouTube channel to help support us, and to stay up to date on new content there!
![]() | ![]() | ![]() | ![]() |
Browser Alerts | Follow us on X (Twitter) | Subscribe | Support Us |
Popular Trending News
LG Announce 45GX950A and 45GX990A 45″ OLED Displays with 5K2K Resolution January 8, 2025 Originally published 30 Dec 2024, last updated 8 January 2025 Following the rumours we brought you recently, LG Electronics have today announced the release of two new OLED monitors in their range, including the World’s first 45″ models which will…
LG’s New 45″ Ultrawide OLED Monitors with 5K2K Resolution Showcased at CES 2025 January 7, 2025 LG 45GX990A bendable We had chance today to see the impressive new LG 45GX950A and 45GX990A in person at the LG booth at CES 2025. These new OLED screens offer a large 45″ ultrawide format with a 21:9 aspect ratio, but unlike previous…
Dell Announce New UltraSharp IPS Black, and Dell Plus QD-OLED Monitors January 6, 2025 Dell UltraSharp 32 Dell have announced today 3 new monitors in their UltraSharp and Plus range. As the press release puts it, their “latest flagship trio showcases industry-leading advancements in color accuracy, eye comfort and audio experience, offering an ideal…
LG 27G850A is the World’s First 27″ 4K 240Hz IPS Black Panel and Includes Dual-mode 480Hz Support January 16, 2025 This one seems to have been very quietly announced, and there’s very limited information about it that we can find online. It is listed on LG’s Japan website for upcoming 2025 monitors, and we’ve found some images on European news…
OLED News and Rumours Round-up for 2025 December 9, 2024 A round-up of news and rumours for OLED monitor development and launches in 2025 – higher refresh rate, DP 2.1 etc