---
title: OLED Display Manufacturing
type: technology
url: "https://www.envisioning.com/research/substrate/south-korea__oled-display-dominance"
hub: substrate
summary: Samsung Display and LG Display control over 70% of global OLED panel production, supplying Apple, every major smartphone maker, and the premium TV market.
---

# OLED Display Manufacturing

Samsung Display and LG Display control over 70% of global OLED panel production, supplying Apple, every major smartphone maker, and the premium TV market.
- Technology Readiness Level: 9/9
- Impact: 5/5
- Investment: 3/5
Samsung Display dominates small/medium OLED panels (smartphones, tablets) with over 50% global share, while LG Display leads large-format OLED for TVs and monitors. Together, they produce the vast majority of the world's OLED panels. Samsung's A5 fab in Asan and LG's Paju and Guangzhou facilities represent the largest OLED manufacturing base in the world.

OLED manufacturing requires mastery of organic compound deposition, encapsulation, and backplane driving at micron-scale precision. Chinese competitors (BOE, CSOT) are gaining share in lower-end OLED, but Samsung and LG maintain technological leads in high-resolution, high-brightness panels required for flagship devices. Apple's iPhone OLED panels are exclusively Samsung and LG sourced.

The display industry follows a pattern familiar in Korean tech: high capital investment creates scale advantages that make it extremely difficult for new entrants to compete on quality and cost simultaneously. Samsung Display alone has invested over $40B in OLED fabrication since 2012.

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Source: Envisioning — Technology Research Institute (https://www.envisioning.com/research/substrate/south-korea__oled-display-dominance)