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LED VIDEO WALL — 55″ COB STANDARD DISPLAY UNIT

LED Video Wall — 55″ COB Display Unit

Build a Seamless LED Video Wall · Plug & Play · No Sender Box · Direct LCD Wall Replacement

The Riotouch LED Video Wall is built from a next-generation COB LED display panel in the golden 55-inch size. Direct HDMI input with no sender box, and VESA-compatible mounting that swaps straight into an existing 55-inch LCD video wall — a seamless leap from LCD to LED.

1.26mm
Pixel Pitch
12,000:1
Contrast Ratio
450
cd/m² Brightness
3840Hz
Flicker-Free
Company Certifications
30+
Certifications
80+
Countries
5,000 m²
Factory Area
2,000+
Units / Month
CE FCC RoHS ISO 9001 Google EDLA

Behaves Like a TV, Fits Like an LCD Panel

Three things make this LED video wall the easiest LED upgrade on the market — no sender box, a standard 55-inch size, and a COB surface built to last.

Riotouch 55-inch COB LED display unit installed in a conference room, running from a direct HDMI input
HDMI Plug & Play

No Sender Box — As Easy as a TV

Connect HDMI and the unit auto-displays up to 2K. There is no external LED sender or controller box, no rack, and no LED-controller training for the installer — it behaves like a display, not like a project.

  • Direct HDMI input — auto display up to 2K
  • No sender box — nothing extra to install or configure
  • Simple for the end user — plug in a laptop, player or meeting device
Rear chassis of the 55-inch COB LED display unit showing VESA 600x400mm fixings and corner mounts
Mounting & Service

VESA 600×400mm — Swaps Into an LCD Wall

The rear chassis carries VESA 600×400mm fixings and corner mounts, so the unit installs on the brackets already holding your 55-inch LCD video wall panels. Maintenance is front-access, and V1.1 removes the backpack for a 35mm ultra-thin mount.

  • VESA 600×400mm + corner fixing — same brackets as LCD panels
  • Front access maintenance — no rear service corridor needed
  • 35mm ultra-thin option — V1.1, no backpack
55-inch COB LED display in a gallery showroom, showing wide viewing angle and high contrast
COB Common Cathode

COB Quality — 12,000:1 Contrast, IP5X Protection

COB (chip-on-board) encapsulation seals the LEDs, so the panel tolerates touch, dust and knocks far better than fragile SMD lamps. The result is 12,000:1 contrast, 170° wide viewing and a surface that keeps its looks in public spaces.

  • 12,000:1 contrast — deep blacks, vivid colour
  • 170°/170° viewing — readable from any position
  • IP5X protection — dust-resistant, robust in high-traffic areas
  • 100,000 hours lifespan with COB common cathode efficiency

From One Panel to a Seamless 8K LED Video Wall

Every unit is a standard 55-inch 16:9 block with 1K native resolution, so resolution scales in clean steps and seams disappear across the COB surface.

1×1

1K single display

One unit on a VESA mount — a digital sign, a meeting-room screen or a shop-front display.

2×2

4K video wall

Four units deliver a 4K wall with a borderless LED look, replacing four 55-inch LCD tiles.

4×4

8K video wall

Sixteen units form an 8K wall for control rooms, showrooms and large-format branding.

Replace an LCD Video Wall — Borderless, Bright, Remote Ready

High contrast, fine detail and quick deployment — three spaces where this LED video wall replaces an LCD video wall.

55-inch COB LED video wall in a corporate conference room ➚

Corporate & Conference

Eye-friendly, wide-angle viewing that stays stable through long meetings and presentations — and installs on the brackets that held the LCD wall.

55-inch COB LED display in a classroom used for education and training ➚

Education & Training

High contrast and fine detail so text, charts and video stay readable from the back of the room, with a flicker-free 3840Hz image on camera.

55-inch COB LED display in a gallery showroom ➚

Control Room & Showroom

Quick deployment and a borderless surface for monitoring walls, galleries and brand spaces — scale from one panel to an 8K wall later.

Technical Specifications

Full technical overview of the Riotouch LED Video Wall — a 55-inch COB standard display unit (AT55-COB) tiled 1×1 to 4×4.

LED Video Wall Datasheet (PDF)
Feature LED Video Wall — 55″ COB Standard Display Unit
Screen size55-inch standard unit, 16:9 aspect ratio
ModelAT55-COB
Display technologyCOB (chip-on-board) packaging, common cathode
Pixel pitch1.26 mm
Pixel density629,882 dots/m²
Brightness450 cd/m² (adjustable)
Contrast ratio12,000:1
Refresh rate≥3840 Hz (flicker-free on camera)
Viewing angle170° / 170°
Power (max / average)240 / 60 W per m²
MaintenanceFront access
InstallationVESA 600×400 mm / corner fixing — direct LCD video wall replacement
InputDirect HDMI — no LED sender box required (auto display up to 2K)
Tiling1×1 = 1K · 2×2 = 4K · 4×4 = 8K
ConfigurationV1.0 standard (with backpack) · V1.1 without backpack (35 mm ultra-thin wall mount)
ProtectionIP5X dust protection
Operating temperature−10 °C to 45 °C
Lifespan100,000 hours
CertificationCCC · CQC energy-saving
OEM / ODMYour brand logo & packaging · samples available

Questions Buyers Ask First

The practical answers on building an LED video wall: plug & play, LCD wall replacement, tiling and OEM.

Correct. The unit accepts a direct HDMI input and auto-displays up to 2K — as easy as connecting a TV. No external LED sender or controller box is required.
Yes. It is a 55-inch 16:9 unit with VESA 600×400 mm mounting and corner fixing, so it installs on the same brackets as 55-inch LCD video wall panels — a direct swap from LCD to LED.
By tiling: 1×1 = 1K, 2×2 = 4K and 4×4 = 8K, using the standard 55-inch 16:9 block. Because the size is standard, wall planning and later replacement stay predictable.
1.26 mm pixel pitch (629,882 dots/m²), 450 cd/m² adjustable brightness, 12,000:1 contrast ratio, ≥3840 Hz refresh rate and a 170°/170° viewing angle.
Up to 240 W/m² maximum and 60 W/m² average — COB common cathode keeps running cost and heat down. Rated lifespan is 100,000 hours.
Front access maintenance with a magnetically held, serviceable structure, so technicians reach the modules and control components from the front without dismantling the wall.
Yes — V1.1 has no backpack, for an ultra-thin 35 mm wall-mount installation. V1.0 is the standard version with backpack.
CCC and CQC energy-saving certification, with an operating temperature range of −10 °C to 45 °C — suited to normal indoor installation.
Yes. We supply fully tested AT55-COB units with your brand logo and packaging, V1.0 or V1.1 configuration, front-serviceable structure for after-sales, plus long-term supply and technical support. Samples are available.
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