This question is more complicated than people think. What does "largest" mean? Total revenue? Digital signage revenue specifically? Units shipped? Market share? Completely different answers emerge depending on which metric is selected.
Samsung
Samsung is number one overall. They make everything-panels, chips, memory, displays, LED modules. Samsung Display supplies AMOLED to half the industry, and then Samsung Electronics competes against those same customers with finished products.
The Wall Pro MicroLED launched in 2024 was impressive. They've been pushing this subscription model-hardware plus CMS plus analytics bundled together. Smart move for recurring revenue.
Here's the thing though. Talk to anyone doing LED video wall projects on a budget and they'll tell you Samsung prices themselves out of 60% of opportunities. Maybe more. Chinese manufacturers will quote 30% lower for the same specs. Samsung is going after the premium segment and letting everyone else fight over the rest.
Their EMEA and North America market share in LCD commercial displays has been dominant. IHS Markit data shows this consistently.
Some Data (With Caveats)
Industry reports from Futuresource and AVIXA put the global digital signage market at $31-35 billion for 2026. That range is wide but that's what happens when trying to define what counts as "digital signage."
Rough estimate of where the major players sit:
Samsung Electronics - around $5-6 billion in digital signage revenue, 18-20% market share globally. Strong in LCD, LED, MicroLED, OLED.
LG Electronics - $3-4 billion, around 11% share. OLED is their focus.
Unilumin - about $1.1 billion (7.4 billion RMB), number one in LED specifically with 10% of that segment.
Leyard - roughly $1 billion, around 15% of LED segment. They own Planar in North America which is important.
Sony - tricky because they bundle professional displays with broadcast equipment in their financials. A $1.5-2 billion figure exists but that includes non-signage products.
The LED Video Wall Situation
This is where things are changing fastest.
Unilumin passed Leyard in revenue in 2023. Their annual reports show it, Omdia stats confirm it. Leyard was the undisputed leader not long ago.
Why did Unilumin catch up? Their Shenzhen factory is highly automated. They expanded capacity another 30% in 2024. Their overseas margins are noticeably higher than domestic. The gap indicates they're not competing on price anymore internationally. Some brand premium is showing up.
That Adele concert in Munich in 2024? The massive 4,000 square meter LED screen that got a Guinness record? Unilumin made that. Good marketing.
Leyard has been doing LED for over twenty years, pioneered fine-pitch LED, has deep relationships in control rooms and command centers. The Planar acquisition in 2015 was smart-gave them a North American brand instead of trying to push the Leyard name directly.
The common thread with both companies is supply chain control. LED chips, driver ICs, manufacturing-mostly in-house. Costs lower than Korean or Japanese competitors.
But the risks are real. Some customers explicitly say "no Chinese brands" even when specs are better and price is lower. That geopolitical situation isn't going away.
LG's Strategy
LG is number two.
Going head-to-head with Samsung on everything would be unwise. They don't have the same vertical integration or scale. So they bet big on OLED instead.
It's working. LG Display is the only supplier of large-format OLED panels globally. That's not changing soon-building OLED capacity takes years and massive investment. Transparent OLED has become the default for high-end retail window displays. Apple stores, Louis Vuitton, that type of location.
They bought Navori Labs in early 2024-The Verge reported around $200 million-and now they have a software story to tell alongside the hardware. Business Cloud CMS launched that same year.
The downside is OLED capacity is constrained. LG Display only has a few large-format lines and expanding is slow and expensive. And they've given up on competing in LED video walls directly.
The number two player in any market has to either find a differentiated niche where they can be number one, or slowly get eaten by the leader. LG chose differentiation. So far it's working.
Rankings
By total digital signage revenue: Samsung, LG, Sony, Unilumin, Leyard
By LED video wall revenue: Unilumin, Leyard, Samsung
By LCD commercial display shipments: Samsung, LG, NEC/Sharp
Sony Crystal LED has incredible image quality. But it's priced for film production and high-end corporate. They're not trying to compete on volume.
What's Going to Shake Things Up
Geopolitics is the big factor. Chinese manufacturers dominate China completely. They might get locked out of US government and defense projects entirely. Europe is becoming a battleground. The CHIPS Act implementation in 2024 and EU tariff investigations on Chinese EVs point toward more technology decoupling.
MicroLED cost reduction is the technology question mark. If costs come down dramatically it reshuffles everything.
Who's Largest?
Depends on the definition.
Total revenue: Samsung. Though digital signage is a rounding error for Samsung as a corporation.
Digital signage revenue specifically: Still Samsung, LG second. Gap might be narrowing.
LED video walls: Unilumin number one, Leyard second.
LCD commercial: Samsung.
Samsung has the strongest overall global position in 2026, but in LED video walls specifically-which is the growth segment-Chinese manufacturers are leading.
