Overview
- Multiple outlets reported Monday that The Elec’s supply‑chain sources say LG Display is engineering a five‑stack OLED panel that adds a third blue emitting layer for a desktop display.
- The proposed layer order, described as blue‑green‑blue‑red‑blue, spreads electrical load across more emitters to raise luminance and reduce the risk of permanent image retention on static UI elements.
- Apple reportedly requested information from both LG Display and Samsung Display about a 24‑inch panel around 218 ppi that can reach roughly 600 nits, specifications aimed at a future iMac display.
- Samsung Display is exploring QD‑OLED as an alternate technical path, and industry reporting says suppliers are targeting panel development around 2028 with consumer iMac shipments not expected before 2029 due to cost and yield risks.
- Existing demonstrations, like LG’s 27‑inch 5K four‑stack prototype, show the idea works but also highlight that multi‑stack panels use more material and a more complex deposition process, which would raise prices and likely delay wide availability.