Fine-pitch LED display PCBs
Direct-view LED panels need boards with enormous hole counts, very flat surfaces and a uniform black mask. Our P1.25 module board is a good example: four layers, 0.6 mm thick, 159,300 drilled holes and 177,300 electrical test points on one board.
We build rigid HDI boards for indoor fine-pitch walls and flexible HDI boards for curved and creative displays.
LED display capability
| Pixel pitch | P1.25 and finer |
|---|---|
| Structure | HDI, 4 layers (shipped) |
| Board thickness | 0.6 mm (shipped) |
| Holes per board | 159,300 (shipped) |
| Test points per board | 177,300 (shipped) |
| Material | FR-4 Tg 170 |
| Solder mask | Black and matte black |
| Finish | OSP (shipped), ENIG |
| Formats | Rigid and flexible HDI |
What matters for LED boards
Drilling at volume
26 CNC drills and laser drilling keep six-figure hole counts on schedule.
Every net tested
With 27 flying-probe testers we test every board, not a sample, even at 177,000 points.
Uniform black mask
Spray-coated and LDI-exposed solder mask gives an even colour across the wall, so modules match.
Flexible LED boards
Flexible HDI boards let display makers build curved surfaces and outdoor creative screens.
Display types
- Indoor fine-pitch LED walls
- Broadcast and control rooms
- Retail and advertising screens
- Curved and flexible displays
- Outdoor LED
Maximum values are individual process limits, not a promise that every limit can be combined. A 34-layer, 7-step HDI board is a documented delivered build; projects above this layer count require engineering review.
Explore the builds →HSX / Our factory
The equipment behind the specification.
Original photographs from our Shenzhen factory. Explore the manufacturing process and the equipment used to build and inspect your boards.
Laser drilling
Laser equipment forms the microvias used in HDI structures. Via spans and stacked or staggered construction are reviewed against the stack-up.
LDI imaging
Direct imaging transfers fine circuit patterns onto the panel. Inner-layer, outer-layer and solder-mask exposure are covered by our LDI equipment.
Electrical testing
Every board is tested for electrical opens and shorts before shipment. The factory has 27 flying-probe testers and three fixture testers.
Questions engineers ask us
What pixel pitch can your boards support?
We ship P1.25 module boards in volume and build finer pitches using 1–2 step HDI. Send the module layout and we will confirm the via structure.
Why do LED display boards need HDI?
At fine pitch there is no room to route between LED pads with through-holes. Laser microvias let the driver signals drop to inner layers directly under each pad.
Do you test every LED board?
Yes. Each board is electrically tested on our flying-probe line, including boards with more than 170,000 test points.
Send your design. Let’s build it properly.
Upload Gerber or ODB++, stack-up and quantities. Standard PCB quotes usually take 30 minutes in working hours; HDI, rigid-flex and special materials usually take up to 24 hours.