Apple’s 20th-anniversary model of iPhone is in development, with screen and battery changes expected for the milestone model. For its 2027 release, which marks the 20th anniversary of the iPhone, the company has started to make preparations for the special smartphone. One of the major updates Apple is planning is the use of an OLED driver display chip (DDI) based on the FinFET’s 3D structure. The chip, which issues instructions to the pixels of the display, is currently produced using a 28-nanometer planar process, with the FinFET switch using a 16-nanometer method instead. The change will help reduce the amount of power consumed by the display, alongside the use of high-luminous efficiency OLED elements. This all-new design will be more power-efficient. Supply chain talks with LG Display and Samsung Display, Apple’s chief screen supply chain partners, are expected soon to discuss the tech changes. This may not be the only display change, as a source says that four-sided bending display technologies are being developed as well as under-display cameras. If they can be commercialized, they can make a big change to how the displays are made, including eliminating the bezel completely. While the new display should reduce power consumption at a time when on-device AI processing such as Apple Intelligence needs even more, there can be more power changes as well. The use of a pure silicon battery is also a prospect. The idea is that the use of 100% silicon as a cathode instead of graphite could considerably increase the energy density, so it can hold more power in the cell. A secondary benefit is an improvement to battery endurance. A battery that is more hardy and deteriorates at a slower rate than current-gen versions, meaning users will have more usage of the entire capacity for longer.