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At SID Display Week 2026, LG Display showcased their latest panel innovations and developments across a range of sectors, including TV\u2019s, automotive and monitors. While a lot of the panels being shown are those which we saw at CES 2026 in January, and reported on in detail in our recent WOLED 2026 video<\/a>, there was a new announcement of note which caught our eye.<\/p>\n LG Display have now unveiled a new 27\u2033 sized Tandem WOLED monitor panel with a 5K resolution and a 220 PPI pixel density, along with an RGB stripe pixel structure. Very little information was included in the press release, but we\u2019ve obtained some further detail from LG Display that we can share with you here.<\/p>\n New 27\u2033 5K Panel Information<\/p>\n The press release only included the following snippet of information about this new panel: \u201cIt is also demonstrating a 27-inch OLED panel that achieves 5K resolution at 220 PPI, featuring a newly designed RGB stripe structure that enhances the aperture ratio. This improves color clarity and precision while minimizing distortion such as color bleeding and fringing.\u201d<\/p>\n What we have also found out is:<\/p>\n We believe that this panel remains accurately 26.5\u2033 in size like their existing 1440p resolution and previously announced 4K resolution panels, but falls in to the 27\u2033 class panel range.The resolution is 5120 x 2880, commonly referred to as \u201c5K\u201dThis gives a ~221.68 PPI pixel density (promoted as 220 PPI at the event). This would be considered \u201cRetina class\u201d by Apple.This is part of their 4th Gen Primary RGB Tandem panel range (now called simply \u201cTandem WOLED\u201d)Refresh rate is 120Hz. There\u2019s no confirmation on whether this would support a dual-mode function (like perhaps 1440p at 240Hz) at this stage.SDR brightness and full screen 100% APL is expected to be 250 nits. It will meet the VESA DisplayHDR 400 True Black tier, but the peak HDR brightness spec is not yet available.RGB stripe sub-pixel layout (no additional white sub-pixel)The RGB stripe structure is different to the one used for the 27\u2033 4K panel announced at CES 2026 although we have not been given any further details on how it is different. The press release talks about an enhanced aperture ratio and we assume the changes relate to the size of the sub-pixels, a requirement to enable the increased pixel density while also trying to retain panel brightness. This is only the second monitor WOLED panel that LG Display have announced with an RGB-stripe sub-pixel layout, following on from their 27\u2033 4K (3840 x 2160) panel announced at CES<\/a>. RGB stripe is being promoted here as being all about helping to eliminate text clarity problems and fringing, but we expect actually there\u2019s a different reason for the change which is not being mentioned.<\/p>\n Text clarity and sharpness is already very good on their 32\u2033 4K and 39\u2033 5K2K panels thanks to the improved pixel layout they now use (RGWB) and mostly because of the improved pixel density. The vast majority of people will find these perfectly fine with no issues we think. At even higher densities like those enabled by 27\u2033 4K and 5K, text clarity would be even better like we\u2019ve seen in the QD-OLED space, there\u2019s really no need to remove the white subpixel for that reason we don\u2019t think.<\/p>\n Removing the white sub-pixel will cause a reduction in brightness capabilities, which is obviously the opposite direction you\u2019d really want OLED panels to be taking. We\u2019re seeing a step back here in SDR brightness from 335 nits (as featured on the latest 4th Gen Tandem WOLED panels with the white sub-pixel still used), to 250 nits for instance. HDR certification is also taking a step backwards from True Black 500 to True Black 400. These are some of the sacrifices you make when removing the white sub-pixel from the design, long used by LG Display for enhancing brightness so this decision won\u2019t have been simple.<\/p>\n The real underlying reason we expect the white subpixel has been removed from the panel design on these new 27\u2033 4K and 5K panels is down to pixel density, and ultimately \u201cspace\u201d. LG Display have lagged a little behind Samsung Display when it comes to these higher pixel densities, and trying to fit 4 sub-pixels in to the space that usually you\u2019d use 3 sub-pixels is presumably a big challenge. The maximum pixel density we\u2019ve seen from their RGWB layout where the white sub-pixel is still used is 143 PPI, as featured on their latest 39\u2033 ultrawide OLED panel<\/a>. Getting to ~160 PPI for 27\u2033 4K and now ~220 PPI for 27\u2033 5K is a step further, and we suspect this has necessitated the removal of the white sub-pixel, just to make these higher densities possible from a production and process point of view.<\/p>\n That\u2019s fine of course if that\u2019s what was needed, but we don\u2019t think this is purely about enhancing text clarity as some might think. If it was, why not shift to RGB-stripe for the panels and pixel densities where it really would make a difference, like 27\u2033 1440p, 34\u2033 3440 x 1440 and so on? That\u2019s where there\u2019s more benefit in the change from a text clarity point of view, not on these super-high density panels. With the shift to RGB stripe layouts, hopefully LG Display will be able to figure out ways to compensate for the brightness drop as well, that\u2019s going to be a new challenge they\u2019ll face when ditching their trusty additional white sub-pixel.<\/p>\n Market use cases<\/p>\n Given the lower refresh rate (120Hz) for this panel and the super-high pixel density, we expect this will be primarily aimed at the professional segment at this stage. Perhaps it could make a great choice for a future Apple monitor, where the 5K resolution and \u201cretina class\u201d pixel density are well-suited to Mac OS systems.<\/p>\n LG Display\u2019s other newly produced 27\u2033 4K panel has a more consumer-friendly spec, including a 240Hz native refresh rate and a dual-mode function for 480Hz at 1080p. In time we\u2019d expect this new 27\u2033 5K panel to evolve, hopefully at some point we\u2019d seen a spec that could rival the current wave of 5K dual-mode<\/a> LCD monitors, as those offer a great combination for both professional\/productivity uses and gaming.<\/p>\n Timelines and monitor adoption<\/p>\n Remember that at this stage this is merely LG Display showcasing a prototype panel at a display tech event that they will hopefully mass produce in the future, but at this stage we are told the timelines for commercialization are not available. It remains to be seen whether any monitor manufacturers adopt this new panel as well, none have been announced so far. Computex is coming up next month so there\u2019s a small possibility we will hear initial news about it, but we expect this is probably too soon to be honest.<\/p>\n We expect any monitor adoption would likely be reserved for the professional sector at this stage given the expected panel specs and limited refresh rate. LG Display\u2019s 27\u2033 4K resolution WOLED panel has not even appeared yet in any available monitor (only announced for one monitor so far<\/a>), so it\u2019s likely there will be adoption of that panel first. Especially considering its more \u201cconsumer-focused\u201d spec.<\/p>\n Related: The latest 2026 OLED Panel Updates and Roadmap<\/p>\n Stay up to date. Subscribe to our channel<\/p>\n We may earn a commission if you purchase from our affiliate links in this article- 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 , B&H and some manufacturers.<\/p>\n Stay up to date<\/p>\n![\"\"](\"https:\/\/www.europesays.com\/korea\/wp-content\/uploads\/2026\/05\/4-2-27-inch-5K-220-PPI.jpg\")
LG Display\u2019s shift to RGB stripe panels<\/p>\n![\"\"](\"https:\/\/www.europesays.com\/korea\/wp-content\/uploads\/2026\/05\/1-1-Overview-of-Exhibition-Booth.jpg\")
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