Apple may be preparing a quiet but significant shift in display technology—one that could redefine how its future iPhones look, feel, and perform. According to industry chatter from South Korea, the company is evaluating Samsung Display’s advanced Colour Filter on Encapsulation (CoE) technology, a move that could first surface in Apple’s long-rumoured foldable iPhone, expected around late 2026.
If adopted, the technology could help Apple solve some of
the biggest challenges facing foldable smartphones today: screen brightness,
power efficiency, and device thickness.
A Strategic Display Upgrade in the Making
Apple has traditionally taken a cautious, perfection-first
approach to adopting new hardware technologies. Foldable phones are no
exception. While rivals have already released multiple generations of foldable
devices, Apple appears focused on entering the category only when key
compromises—like bulky designs and power-hungry displays—are addressed.
That’s where Samsung Display’s CoE technology comes in.
Reports suggest Apple is testing this next-generation OLED solution not only
for its foldable iPhone project but also for future mainstream models,
potentially including the iPhone 18 series.
What Is CoE Technology and Why It Matters
Samsung’s Colour Filter on Encapsulation—also marketed as
On-Cell Film—rethinks the traditional OLED display structure.
Here’s how it stands apart:
No Polarizer Layer: Standard OLED displays rely on a plastic
polarizer to control reflections and contrast. While effective, it absorbs
nearly half of the light produced by the panel, forcing the display to consume
more power to stay bright.
Color Filter Built Into Encapsulation: CoE removes the
polarizer entirely and instead integrates the color filter directly into the
OLED’s thin encapsulation layer.
Brighter Screens, Lower Power Use: With less light being
blocked, displays can appear noticeably brighter without increasing energy
consumption—an important gain for battery life.
Thinner Display Stack: Eliminating an entire layer reduces
panel thickness, a crucial advantage for foldable phones where every millimeter
counts.
Why This Could Be a Big Deal for Apple
For Apple, CoE technology could be the missing piece that
makes a foldable iPhone feel truly “Apple-like”—sleek, efficient, and
uncompromising.
A thinner display would allow for a slimmer foldable design,
while improved brightness and efficiency could help offset the higher power
demands of large, flexible screens. These benefits align closely with Apple’s
design philosophy, particularly as it seeks to differentiate its foldable from
existing Android alternatives.
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Samsung Benefits Too
Interestingly, Apple wouldn’t be the only winner. Samsung is
expected to roll out CoE technology across its own premium lineup, including
future Galaxy Z Fold, Galaxy Z Flip, and even flagship models like the Galaxy
S26 Ultra. This suggests CoE could become a new industry standard for high-end
OLED displays over the next few years.
Looking Ahead
While nothing is official yet, Apple’s reported interest in
CoE technology signals serious progress toward its foldable ambitions. If the
technology lives up to expectations, Apple’s first foldable iPhone could arrive
not just late to the market—but meaningfully better optimized than many early
competitors.
For now, all eyes remain on 2026. If Apple moves forward, the foldable iPhone may debut with one of the most advanced smartphone displays the industry has seen.
By Aaradhay Sharma
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