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HLD Opto
Display panel innovator
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LED DISPLAY · ENGINEERED WORLDWIDE

Engineered for
Landmarks.

Custom LED display systems for landmark architecture, stadiums and premium commercial spaces — designed, manufactured and delivered worldwide.

01 FRONT-ACCESS SERVICE
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HLD / Credentials & expertise

Expertise you can trust.
Credentials you can explore.

Product compliance. Quality systems.
Engineering you can build on.

10years of LED expertise
3,000+projects worldwide
3ISO management systems
10patents & software registrations

Original documents. Defined scope. Open a certificate to view its models, standards and dates.

Certificate library · 1 / 38

CE · LVD

CE · LVD original document, BKC25083474HC
A spherical LED display showing planet Earth suspended in an exhibition hall
Custom · Bespoke

Your Design.
Our Engineering.

Size, curvature, pixel pitch and mounting — all tailored to your project. From the first concept sketch to first light on site, one team sees it through.

  • Size customizable according to project requirements
  • Curved, spherical, flexible and other irregular structures engineered in-house
  • Sample approval before mass production, every milestone visible to you
Micro-Pitch Visual Lab

Smaller pitch. Higher resolution.

Drag pitch to see resolution change — no visible grid when lit.

P0.6
0.8m – 1.5m
100%
res
Contrast
10,000:1
Angle
170°
P0.6Slide pitchP1.5

No grid when lit · only resolution changes · 10,000:1 contrast

HLD / PROJECT REFERENCES

From plans to real spaces.

All projects →
FAQ

Questions,
answered.

The things buyers ask us most — from choosing a pixel pitch to what happens after the screen goes live.

  • Certified

    CE · FCC · RoHS · CCC · ISO

  • Live factory tour

    On WhatsApp video, any time

  • Spares included

    Modules, PSU & cards

  • Front service

    Swap parts in minutes

JohnMandyAria Xiao

Didn’t find your question?

We reply to every inquiry within 2 hours.

Or request a quote
  • Start from the closest viewing distance. A common rule of thumb is about 1 m of viewing distance per 1 mm of pitch — so a boardroom viewed from 2 m suits P1.2–P1.9, while a stadium screen viewed from 30 m+ works well at P6–P10. Share your space and content and we will recommend the most cost-effective pitch.

  • SMD mounts individually packaged LEDs on the board; COB (chip-on-board) bonds the bare chips directly and seals them under one protective layer. COB gives deeper blacks, higher contrast and a surface that resists knocks, moisture and dust — ideal for fine pitch and touch-close viewing. SMD remains a flexible, economical choice for larger pitches.

  • Outdoor displays need far higher brightness to stay readable in sunlight, plus weatherproof cabinets (typically IP65 front and rear) and wider operating temperatures. Indoor displays prioritise finer pitch, lower brightness and quiet, slim cabinets for close viewing.

  • Our product lines carry CE (LVD & EMC), FCC, RoHS and CCC certification, and our manufacturing runs under ISO 9001, ISO 14001 and ISO 45001 management systems. You can open the original certificates in the credentials section above.

  • Yes. Beyond standard cabinets we engineer curved, spherical, ribbon and fully bespoke structures. Send us the dimensions, site photos or drawings and our engineers will propose a layout, structure and control solution.

  • Lead time depends on model, quantity and customisation. Every quotation includes a confirmed production schedule, and we ship worldwide by sea, air or express with full export documentation.

  • Every project ships with installation drawings and wiring diagrams. Our engineers provide remote guidance throughout installation and commissioning, and on-site support can be arranged for larger projects.

  • Each project comes with a written warranty, spare modules and power supplies, and remote technical support. Front-access maintenance means most modules can be replaced in minutes without removing the screen. Exact terms are confirmed in your quotation.

Demand diagnosis

Upload your content.See it on InkScape™.

Drop a still into the live COB preview. Confirm your role and scenario — we will generate a custom display plan after reviewing your requirements.

Continue to project form
InkScape™ COB PreviewLive
Content preview on COB screen
P0.9 · 10,000:12h first reply