After unveiling the iPad Pro equipped with a dual-stack tandem OLED display, Apple is now assessing the viability of integrating this advanced technology into its iPhone lineup. By stacking two OLED panels, this technology significantly boosts brightness and display accuracy, promising an enhanced visual experience for users. While the evaluation process has begun, the rollout of this novel technology necessitates approximately two years of preparation. Consequently, the dual-stack tandem OLED display could potentially make its debut on the iPhone 20 series as early as 2028.