Apple has begun its quiet transition toward a new generation of smartphone displays. The technology that powers the screens on its newly launched foldable device could reach the mainstream Pro lineup in three years.
According to research firm UBI Research, the 2029 iPhone Pro models are slated to adopt Color Filter on Encapsulation, or CoE. This approach eliminates the traditional polarizer layer found in current OLED panels. Instead, it applies a color filter directly atop the encapsulation layer. The result promises thinner construction and lower power draw. (MacRumors)
But first, Apple tested the waters with the iPhone Duo.
Announced on September 9, the Duo marks the company’s entry into foldables. It features a 7.6-inch inner Super Retina XDR display when opened and a 5.4-inch outer display when closed. Both support ProMotion adaptive refresh up to 120Hz, Always-On capability, and peak outdoor brightness of 3,000 nits. The inner panel uses a custom nano-texture finish to cut glare and soften the appearance of the crease. (Apple Newsroom)
John Ternus, Apple’s CEO, described the device as the most transformational change to iPhone since the original. “Others have created foldables that just feel like two phones awkwardly stuck together,” he said during the presentation. The Duo opens to the thinnest iPhone yet, with a precision hinge and components packed into the camera module area.
Reports before launch pointed to Samsung supplying the folding OLED for the Duo with CoE already in place. Apple has stayed silent on the panel’s exact internal makeup. Yet analysts view the foldable as the logical proving ground. Its production volume remains far smaller than the tens of millions of Pro units shipped yearly.
Removing the polarizer brings clear gains. That layer normally suppresses ambient reflections but absorbs a sizable share of the light the OLED generates. Without it, more light passes through. Samsung’s internal tests once showed a 33% boost in light transmission and as much as 25% lower power consumption. Displays could hit higher brightness levels or maintain current output while sipping less battery. They might also shed thickness, freeing room for larger cells or additional hardware.
Challenges remain. No polarizer means reflections must be tamed through other means: refined color filters, black pixel-defining layers, specialized low-reflection coatings. Outdoor visibility, wide viewing angles, contrast ratios, and color fidelity all require careful balancing. UBI Research suggests these hurdles explain the delay until 2029 for high-volume bar-style iPhones. (MacRumors)
The scale matters. Annual demand for panels across the two Pro models hovers between 90 million and 100 million units. That dwarfs the numbers tied to a single foldable product. Suppliers will need to ramp production without yield problems or cost spikes.
Samsung Display and LG Display stand ready to lead initial CoE supply for the Pros. BOE could join the mix if it satisfies Apple’s stringent quality bar. The South Korean firms already provide most premium OLEDs for current iPhones.
Industry conversation around the Duo has focused on more than just the hinge. Its dual-screen setup demanded a custom display engine inside the A20 Pro chip. That silicon drives both panels at once, supports fluid transitions between open and closed states, and handles Split View multitasking in iOS 27. Battery life splits accordingly: up to 44 hours of video on the outer display alone, 31 hours on the inner, and 24 hours in mixed use. Pre-orders open October 16. Units reach customers October 23. The device starts at $1,999. (The Mac Observer)
Apple’s approach stands apart from rivals. Samsung’s Galaxy Z Fold series and Google’s Pixel Fold have shipped for years. Yet many reviewers still complain about visible creases, bulk when closed, and software that feels like an afterthought. The Duo, by contrast, shares the same aspect ratio on both screens so content scales without distortion. iOS adapts layouts based on orientation and fold angle. StandBy mode turns the half-open device into a desk clock or photo frame.
Analysts expect the foldable to capture a meaningful slice of the premium market. IDC has projected Apple could claim 40% of foldable shipments within a couple of years. The $2,000 price positions it against Samsung’s top models but well above standard iPhone Pros.
Longer term, CoE could spread. Success on the Duo would de-risk the technology for flat Pro displays. Thinner panels might allow slimmer phone bodies or more internal space. Better efficiency could extend battery endurance or support brighter always-on experiences without draining the cell faster.
Not every report lines up perfectly. Some earlier speculation tied CoE and related advances to 2027 anniversary models. Recent updates point to further delays on certain variants, underscoring the complexity. Heat management, supply consistency, and meeting Apple’s color-accuracy standards continue to pose questions. (Sammy Fans)
Even so, the direction looks set. Apple rarely rushes into new form factors or underlying component shifts. It waited years for foldable materials and hinges to mature. The same patience now applies to polarizer-free OLED.
When the Pro models finally arrive with CoE in 2029, the change may feel incremental to casual buyers. Brightness numbers could tick higher. Phones might shed a fraction of a millimeter. Battery claims could stretch a bit further. But for component engineers and supply-chain watchers, it will signal another step in Apple’s methodical refinement of the smartphone canvas.
The Duo already shows what becomes possible once the display technology crosses a threshold. Its large inner canvas invites genuine multitasking. The outer screen works as a full iPhone when the device stays pocketed. And the shared aspect ratio keeps the experience consistent. Those lessons will inform how future flat iPhones evolve once the same panel advances reach them.
Suppliers are investing heavily. Samsung continues to expand its OLED capacity with an eye on Apple’s volumes. LG and BOE jockey for position. The next three years will test yields, costs, and reliability at scale. If CoE clears those bars on the Duo first, the path to the Pro lineup becomes clearer.
Consumers won’t see the internal polarizer removal. They will notice the outcomes. A lighter phone. Longer runtime. Screens that perform better under direct sun. And perhaps, eventually, even thinner designs that still deliver the performance and durability Apple demands.
The wait until 2029 feels long in an industry that ships annual upgrades. Yet Apple’s history suggests the delay serves a purpose. Better to get the fundamentals right than ship a compromise that haunts the brand for years. The iPhone Duo represents the first real-world deployment. Its reception, real-world battery numbers, and long-term durability reports will shape expectations for what comes next.
Apple’s iPhone Duo Display Tech Heads to Pro Models by 2029 first appeared on Web and IT News.