DOIT VISION

/

BLOG

/

RING LED DISPLAY BUYING GUIDE: OUTER DIAMETER, BAND WIDTH, PIXEL PITCH & MOUNTING (2026)

Blogs

Updated August 31, 2026

RING LED DISPLAY BUYING GUIDE: OUTER DIAMETER, BAND WIDTH, PIXEL PITCH & MOUNTING (2026)

A ring LED display — also called a halo LED screen — is a hollow donut-shaped loop with pixels only on the band and an open centre you can see through. Buying one means five decisions in order: outer diameter and band width, pixel pitch, single- or double-sided, framed or frameless, and mounting method. This

DV

DOIT VISION Engineering Team

15 core engineers · Shenzhen, China Last reviewed:

August 31, 2026

A ring LED display — also called a halo LED screen — is a hollow donut-shaped loop with pixels only on the band and an open centre you can see through. Buying one means five decisions in order: outer diameter and band width, pixel pitch, single- or double-sided, framed or frameless, and mounting method. This guide walks through each decision with real project data from ceiling-suspended halos in mall atriums, hotel lobbies, and brand flagships across 55+ countries. New to ring displays? Start with our Ring LED product page for specifications — then return here to build your quote request.

Ring LED display buying guide decision flowchart showing five decisions outer diameter band width pixel pitch sided configuration framed vs frameless and mounting method
Key Takeaways
  • A ring LED display is not a circular disc and not a cylinder — it is a flat hollow loop (donut/halo shape) with an open centre. If you need a solid round screen, see Circular LED. If you need a vertical column wrap, see Cylinder LED.
  • Five decisions, in order: (1) outer diameter + band width, (2) pixel pitch, (3) single- vs double-sided, (4) framed vs frameless, (5) mounting method. Each decision constrains the next.
  • Outer diameter should be roughly 1/3 to 1/2 of the closest viewing distance — same rule as circular displays. Band width (the pixel strip thickness) determines visual impact: 0.3–0.5m for subtle halos, 0.5–1.0m for statement pieces.
  • Pixel pitch rule unchanged: pitch in mm ≈ minimum viewing distance in metres. P2.5 for 2.5m+, P1.57 for 1.5m+, P1.25 for close-up brand zones.
  • Double-sided rings cost roughly 60–80% more than single-sided and are standard for ceiling-suspended mall atriums. Single-sided suits wall-mounted retail windows and stage backdrops viewed from one direction.
  • Indicative pricing: framed ring 2m outer diameter P2.5 single-sided $5,000–$8,000 EXW Shenzhen; frameless borderless same size $8,000–$12,000. Double-sided adds 60–80% over single-sided.
01 — Shape Clarification

Ring vs Circular vs Cylinder — Know Which Shape You Need

Search terms overlap, but these are three different products with different structural frames and content mapping workflows. Getting this wrong at specification stage wastes weeks.

Ring / Halo LED
  • → Flat horizontal loop — one plane, open centre
  • → Pixels only on the ring band; centre is empty
  • → Ceiling-suspended halos, DJ booth rings, retail window frames
  • Ring LED product page →
Circular LED
  • → Solid round disc — pixels fill the entire surface
  • → Wall-mounted signage, full-image circular content
  • → Heavier than an equivalent ring at the same outer diameter
  • Circular LED product page →
Cylinder LED
  • → Vertical 360° wrap around a column or pillar
  • → Viewers walk around the column — not a ceiling halo
  • → Different rigging, different content canvas
  • Cylinder LED product page →

If your brief says “ring” but the render shows a solid disc filling the circle, you want circular — not ring. If the render shows a halo with sight lines through the centre, you want ring. For a detailed comparison, read Ring vs Circular vs Cylinder LED.

02 — Diameter

Decision 1: Outer Diameter and Band Width

A ring display has two size dimensions, not one. Outer diameter is the overall span of the halo. Band width (also called ring thickness) is how wide the pixel strip is — the distance between outer edge and inner opening.

The viewing-distance rule from circular displays still applies: outer diameter should be roughly 1/3 to 1/2 of the closest viewing distance. A 2m outer diameter ring viewed from 6m looks proportional. A 0.8m ring at the same distance looks like a wall clock.

Venue Viewing Distance Outer Diameter Typical Band Width
Retail window / reception counter 1–2m 0.5–1.0m 0.15–0.30m
Brand flagship / DJ booth halo 2–4m 1.5–3.0m 0.30–0.50m
Hotel lobby / casino ceiling 4–8m 2.0–4.0m 0.40–0.80m
Mall atrium (multi-floor) 6–15m 3.0–6.0m 0.50–1.00m

Minimum outer diameter: 0.3m (300mm) for framed rings using standard flexible modules. Frameless fan-shaped PCB rings typically start at 0.6m outer diameter because custom sector tooling needs sufficient arc length per board.

Inner opening: Defined by outer diameter minus twice the band width. A 3m outer ring with 0.5m band width has a 2m clear opening — performers, merchandise, or architectural elements remain visible through the centre. This is the primary reason integrators choose ring over circular for stage and atrium work.

Bangkok Reference Project

Our Bangkok 3m suspended borderless ring used a concentric halo array — multiple rings at different diameters clustered at varying heights. Outer ring 3m, frameless borderless construction, ceiling-suspended with steel cable rigging. The open centre preserved vertical sight lines through the atrium while the halo band carried brand animation. Specify whether you need a single ring or a multi-ring array when requesting your quote.

03 — Pixel Pitch

Decision 2: Which Pixel Pitch?

The pixel pitch rule is the same as any LED display: pixel pitch in mm ≈ minimum viewing distance in metres. P2.5 looks sharp at 2.5m and beyond. P1.25 at 1.25m+. Going finer than your viewing distance requires is wasted budget — the extra pixels sit on a narrow band strip where total pixel count is lower than a solid disc anyway.

Pitch Min Viewing Distance Typical Ring Application
P1.25 1.25m+ Luxury retail halos, close-up brand zones
P1.57 1.5m+ Hotel lobbies, flagship stores
P2.5 2.5m+ Mall atriums, DJ booths, stage rings — most common
P4 4m+ Large atrium halos viewed from upper floors

Ring content is typically mapped to a band-shaped canvas — logo animation, gradient sweeps, text running around the circumference. Fine pitch matters less than for a solid disc showing detailed photography, because the content is designed for the ring form. P2.5 handles 80% of ring projects.

Use the Ring Band Resolution Calculator on our product page to estimate band pixel count from outer diameter, band width, and pitch before specifying your processor.

04 — Sided Configuration

Decision 3: Single-Sided or Double-Sided?

Single-sided rings have LEDs on one face of the band only. Double-sided rings illuminate both faces on a shared ring chassis — each face has its own receiving card and can run independent content.

Single-Sided
  • → Lighter — lower rigging load for ceiling suspension
  • → Lower cost — one module face per band segment
  • → Ideal for: wall-mounted retail windows, stage backdrops, DJ booths viewed from one direction
Double-Sided
  • → Visible from above and below — mall atriums, multi-floor lobbies
  • → ~60–80% heavier than single-sided — rigging must account for weight
  • → Two independent content channels on one structure
  • → Standard for ceiling-suspended brand halos

Do not specify double-sided for a wall-mounted ring facing one direction — you pay for a second screen nobody sees. For a full engineering comparison of weight, power, rigging, and content workflow, read Single vs Double-Sided Ring LED.

05 — Frame Type

Decision 4: Framed or Frameless Borderless?

The framed vs frameless trade-off for rings mirrors circular displays, with one addition: frameless rings use custom fan-shaped PCB sectors — the same technology deployed in our Bangkok borderless halo array.

Framed Ring
  • → Visible aluminium ring chassis encloses module edges
  • → Standard flexible modules — lower cost, 15–25 day lead time
  • → Easier repair — individual modules replaceable
  • → Best for: stage rings, exhibitions, budget retail halos
Frameless Borderless Ring
  • → No visible bezel — halo appears to float in space
  • → Custom fan-shaped PCB sectors per diameter — 30–50% higher cost
  • → 35–45 day lead time including PCB tooling
  • → Requires Novastar circular pixel mapping + pre-configured RCFG files
  • → Best for: luxury retail, architectural atriums, brand flagships

For circular displays, we wrote a dedicated comparison of framed vs frameless image quality and installation tolerance. The same principles apply to rings — read Framed vs Frameless Circular LED for the engineering detail; ring frameless adds fan-shaped sector PCB layout on top.

06 — Mounting

Decision 5: Which Mounting Method?

Unlike circular displays that offer five installation methods, rings are dominated by ceiling suspension — but not exclusively. Confirm mounting before production; rear anchor points and cable routing are customised to match.

Method Typical Use Install Time
Ceiling-suspended (steel cable) Mall atriums, hotel lobbies, DJ halos 4–6 hours, 2 technicians
Wall-mounted (flush bracket) Retail window rings, single-sided 2–4 hours
Floor-standing (pedestal) Exhibitions, pop-up activations 1–2 hours
Multi-ring array (shared rigging grid) Concentric halos, casino ceilings 1–2 days (engineering-dependent)

For ceiling-suspended rings: 4–8 steel cables rated to 3× display weight, anchored to concrete slab or steel truss with a load-spreading plate. Modules use reinforced neodymium magnets with mechanical lock backup in inverted orientation. Structural load calculations ship with every order. Full rigging guide: How to Install a Ceiling-Suspended Ring LED.

07 — Cost

What Does a Ring LED Display Cost?

Ring pricing depends on five variables: outer diameter, band width, pixel pitch, framed vs frameless, and single vs double-sided. Below are indicative EXW Shenzhen prices based on 2023–2025 project data. Every quotation includes a line-by-line BOM.

Configuration Outer Ø Pitch EXW Price (USD)
Framed, single-sided 1.0m P2.5 $2,500–$4,000
Framed, single-sided 2.0m P2.5 $5,000–$8,000
Frameless borderless, single-sided 2.0m P2.5 $8,000–$12,000
Framed, double-sided 3.0m P2.5 $12,000–$18,000
Frameless, multi-ring array 3.0m + concentrics P1.57–P2.5 Project quote — see Bangkok case

Budget an additional 15–25% for shipping, customs duties, and local installation labour. Rigging hardware for ceiling suspension is included in the display quote; structural ceiling reinforcement (if required) is a separate local contractor scope.

08 — Checklist

Checklist Before You Order

  1. Shape confirmed — ring, not circular or cylinder
    Hollow centre required? → Ring. Solid disc? → Circular. Vertical column wrap? → Cylinder.
  2. Outer diameter and band width decided
    Outer diameter ≈ 1/3 to 1/2 of closest viewing distance. Band width 0.3–0.5m for subtle halos, 0.5–1.0m for statement pieces. Minimum 0.3m outer for framed; 0.6m for frameless.
  3. Pixel pitch matches viewing distance
    P2.5 for 2.5m+. P1.57 for 1.5m+. Do not over-specify fine pitch for distant atrium viewing.
  4. Single- or double-sided confirmed
    Double-sided only if viewers approach from both directions. Adds 60–80% weight and cost over single-sided.
  5. Framed or frameless decided
    Framed = lower cost, faster lead time. Frameless = floating halo aesthetic, 30–50% premium, custom PCB tooling.
  6. Mounting method chosen and ceiling structure documented
    Provide ceiling type (concrete slab, steel truss, suspended ceiling) for anchor specification. Confirm power and data access at installation point.
  7. CAD mockup received from supplier
    Request engineering drawings showing outer/inner diameter, mounting points, module layout, and cable routing before committing.
Ready for a CAD Mockup and Formal Quote?

Send us your five decisions — outer diameter, band width, pixel pitch, sided configuration, framed or frameless, and mounting method. Our engineering team returns a 3D CAD visualisation and line-by-line BOM within 24 hours.

WhatsApp an Engineer →
Manufacturer
DOIT VISION
Author
Kris Liang, Co-Founder
Author Experience
19 years LED engineering
Content Type
Article — Buying Guide
Primary Topic
Ring LED Display Buying Guide: Outer Diameter, Band Width, Pixel Pitch, Sided Configuration, Framed vs Frameless, Mounting
Date Published
August 2026
Date Reviewed
August 2026
Industries
LED Display, AV Integration, Creative LED, Ring LED, Halo LED
Certifications
CE, FCC, RoHS, CB
Countries Served
55+
FAQ

A ring LED display is hollow — donut or halo shaped — with pixels only on the ring band and an open centre. A circular LED display is a solid round disc with pixels filling the entire surface. Rings suit ceiling halos and stage setups where sight lines through the centre matter. Solid circles suit wall-mounted signage needing a full image surface.

In order: (1) outer diameter and band width, (2) pixel pitch based on viewing distance, (3) single- or double-sided, (4) framed or frameless borderless, (5) mounting method — ceiling suspension, wall mount, floor stand, or multi-ring array. Confirm mounting before production because rear anchor points are customised.

Outer diameter should be roughly 1/3 to 1/2 of the closest viewing distance. Band width is typically 0.3–0.5m for subtle halos or 0.5–1.0m for statement pieces. Minimum outer diameter is 0.3m for framed rings and 0.6m for frameless fan-shaped PCB rings.

Pixel pitch in mm should approximately equal minimum viewing distance in metres. P2.5 for 2.5m+, P1.57 for 1.5m+, P1.25 for close-up brand zones. P2.5 handles 80% of ring projects because ring content is typically band-mapped animation rather than detailed photography.

Single-sided for wall-mounted retail windows and stage backdrops viewed from one direction — lighter and lower cost. Double-sided for ceiling-suspended mall atriums and lobbies where viewers approach from above and below — adds roughly 60–80% weight and cost over single-sided. Each face runs independent content.

Indicative EXW Shenzhen: framed ring 2m outer diameter P2.5 single-sided $5,000–$8,000; frameless borderless same size $8,000–$12,000; double-sided adds 60–80% over single-sided. Final price depends on outer diameter, band width, pixel pitch, framed vs frameless, and mounting hardware.

Confirm shape (ring vs circular vs cylinder), outer diameter and band width, pixel pitch, single or double-sided, framed or frameless, mounting method and ceiling structure type, power and data access, and request a CAD mockup with mounting points and module layout before committing.

Related Products
Creative & Custom LED Displays
Ring LED Displays

Hollow ring and halo LED screens — open centre, LED on the ring band only. Not a...

View Specs
Continue Reading
Get in touch
Start your project.
We respond same day.
Send your room dimensions, pixel pitch requirements, or project brief — an engineer replies within hours.
Same-day engineer response  ·  CE · FCC · RoHS · ISO 9001
Manufacturer
DOIT VISION
Founded
2013, Shenzhen, China
Headquarters
Shenzhen, Guangdong, China
Certifications
CE, FCC, RoHS, CB, ISO 9001
Official Website
https://www.doitvision.com/