📖 Knowledge Base

Learn AV, LED, LCD, OLED and digital signage terminology — explained simply.

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All Av Display General Led Logistics Rental
LED vs LCD vs OLED — Which One?
display

Quick Decision

  • Need big (3m+) seamless? → LED
  • Meeting room, budget? → LCD
  • Premium, perfect blacks? → OLED

Detailed Comparison

LEDLCDOLED
Max sizeUnlimited98"88"
Seamless✅❌ Bezels✅
Brightness10,000 nits700 nits1,000 nits
Outdoor✅❌❌
Black levelGoodOKPerfect
Price/m²€1,000–3,000€500–2,000€3,000–10,000
Lifespan100,000h50,000h30,000h
How to Build a Video Wall
display

Step by Step

  1. Choose display type: LED (seamless) or LCD (cheaper, bezels)
  2. Calculate size: Wall area ÷ panel area = number of panels
  3. Select resolution: 1920×1080 per panel or total?
  4. Choose processor: LED controller / video wall controller
  5. Plan power: ~300W/m² for indoor LED, ~600W/m² outdoor
  6. Mounting: Wall mount, floor stand, or rigging
  7. Calibrate: Color and brightness matching across panels

Example: 4m×2.5m LED Wall

  • 10m² × P2.5 indoor = ~€8,000–12,000 (panels)
  • Controller + processor = ~€1,000–3,000
  • Installation = ~€1,000–2,000
  • Total: ~€10,000–17,000
E-Ink vs LCD — Digital Signage Choice
display

E-Ink Advantages

  • ✅ Zero power when image is static (years on one battery)
  • ✅ Perfect readability in direct sunlight
  • ✅ Paper-like, no eye strain
  • ✅ Ultra-thin and lightweight

E-Ink Limitations

  • ❌ Slow refresh (1 second vs 60Hz)
  • ❌ No video — static images only
  • ❌ Limited to grayscale or few colors
  • ❌ Smaller sizes (max ~42")

Best Use Cases

  • Electronic shelf labels (retail)
  • Bus/train station timetables
  • Museum information panels
  • Office door signs / room booking
  • Restaurant menus