The 20th anniversary iPhone’s curved screen will get better a year later

Apple is already planning a second version of the “quad-edge” display that is expected to debut on next year’s 20th anniversary iPhone, according to a new report out of Korea.

For the 20th anniversary iPhone, Apple is reportedly introducing a screen that curves around all four edges of the device for a borderless viewing experience. It could be one of the biggest design changes in iPhone history since the 10th anniversary of the iPhone

Today, ETNews reports that Apple is planning a two-stage rollout for the new OLED display technology that the commemorative iPhone will use, with a more advanced version expected to arrive a year later.

For the 2027 variant, Apple would rely on OLED technology which uses a magnesium-silver alloy (MgAg) in the cathode layer. This implementation may result in image distortion and loss of brightness in curved areas, but Apple is apparently willing to live with the 20th Anniversary iPhone compromise while more advanced technology evolves.

Apple then plans to solve the problem in 2028 by switching to next-generation transparent electrodes. Apple is reportedly moving to indium zinc oxide (IZO) cathode materials, and because IZO is more transparent, it should reduce distortion, uneven brightness, and heat issues around curved edges while allowing even narrower bezels.

ETNews reports that Samsung Display and LG Display have already been put on alert to prepare for the two-stage rollout. LG recently announced a 1.106 trillion yen (about $790 million) investment in OLED infrastructure, which industry observers say is tied to the development and mass production of the new technology.

Meanwhile, Samsung is reportedly evaluating whether its existing OLED lines can accommodate the required hardware, but a dedicated production line is not out of the question and may well be necessary.

Bloomberg in May 2025, he reported on Apple’s plan to release a “curved, mostly glass iPhone with no cutouts in the screen” for its 20th anniversary model. The information Several sources also cited last year, claiming that at least one new iPhone model launching in 2027 will have a true edge-to-edge display.