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Samsung will adopt next-gen Color Filter on Encapsulation (CoE) Displays for their Galaxy S26 Ultra in 2025

1 cover CoE display Samsung Samsung Color Filter on Encapsulation (CoE) Displays

Back in September 2024, Patently Apple posted a report titled "Omdia predicts that COE will dominate as the main antireflection technology for foldable OLEDs & expand to conventional smartphones. " Omdia indicated at the time that color filter on encapsulation (COE) displays will displace circular polarizers as the method to reduce ambient light reflection and glare from OLED smartphones. By 2030, nearly 90% of foldable, and almost 20% of the nearly 1-billion-unit OLED smartphone market will adopt COE." We noted at the end of our report that COE’s popularity is a trend worth noting going forward."

Today we're learning that Samsung plans to apply 'CoE' (Color Filter on Encapsulation) technology, which saves power consumption and increases light transmittance, to the Galaxy S26 Ultra to be released next year. This is the first time that Samsung Electronics is applying CoE to a bar-type smartphone. This could significantly advance the adoption rate starting in 2026.

If the polarizer is omitted from a smartphone display, the panel becomes thinner and the light transmittance increases, which can reduce power consumption. Colors are also expressed more vividly by using a color filter instead of the polarizer. Black PDL can prevent light from reflecting inside the panel. The photosensitive polyimide (PSPI), the raw material of PDL, which is an orange series material in the partition between red (R), green (G), and blue (B) OLEDs, is replaced with a black series to create a black PDL.

In existing OLEDs, polarizing plates prevent light coming from outside the panel from reflecting off the electrodes between pixels, thereby improving display visibility. However, when light passes through the polarizing plate, which is an opaque plastic sheet, brightness decreases by more than 50%, reducing light efficiency. Increasing brightness requires more power consumption, but increasing brightness leads to a decrease in product lifespan. For more on this, read the full report by The Elec.

Whether this is a type of display would be of interest to Apple for future iPhones and beyond is unknown at this time.

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