Group 1 - The core point of the article is that Apple will use Samsung's COE technology OLED display for its 20th anniversary iPhone, which will make the display brighter and thinner [1][2] - The adoption of COE technology will result in a thinner display and improved light transmittance, allowing for higher brightness without increasing power consumption [2] - Apple faces challenges in managing reflection and glare control without traditional OLED polarizers, likely requiring advanced coatings and pixel-level materials to maintain outdoor usability [2]