According to DigiTimes, Apple will use backlighting chips underneath the LCD display of the 6.1-inch 2018 iPhones to reduce bezels.
All three expected iPhone models will probably be near-bezel-free, despite the fact that the 6.1-inch iPhone will have an LCD display. A supply-chain report now explains how Apple could do this without an OLED display. The Japanese company Nichia won sole supplier status for the backlighting system for the 6.1-inch LCD iPhone, because of its lead in a new generation of the technology.
While LTPS-LCD smartphone screens with backlights using 0.4t LED chips have bottom bezels of 4.0-4.5mm, use of 0.3t LED chips can reduce them to 2.0-2.5mm, enhancing LCD screens’ competitiveness against OLED all (bezel-free) screens panels, the sources explained.
Packaging of 0.3t LED chips for side-view backlighting of LTPS-LCD smartphone panels is more difficult in accuracy and stability than that of 0.4t LED chips, the sources noted, adding Nichia began trial production of 0.3t LED chips for use in high-end smartphone models launched by China- and Japan-based vendors in the first half of 2018.
The 6.1-inch LCD model will probably still have thicker bezels than the OLED iPhones, but not much difference.