India, Sept. 24 -- Apple is reportedly preparing a major display upgrade for future iPhones, with plans to introduce Colour Filter on Encapsulation (COE) technology to its bar-type smartphones in 2027. The move is said to coincide with the 20th anniversary of the iPhone, and could mark one of the most significant leaps in display engineering since OLED first arrived on Apple devices.

Current OLED screens use a polarising layer to control light reflection and prevent blur across the panel. While effective, this layer also dims the display, forcing devices to consume more battery power to maintain brightness levels.

COE technology removes the need for this polariser. Instead, it applies a new filter directly onto the display encapsulation...