Custom Panel Cutting Service — Technical FAQ for Engineers & Procurement

Reference product: 86" 1500nits High Brightness LCD Screen (Model HT860FHD-D1500), Direct-Lit, 3840×2160, HANNTU QLED panel — see full spec on this page.

If you're evaluating a non-standard glass size for an embedded, kiosk, or signage project, you've probably run into the same wall most engineers do: standard panel sizes (43"/55"/65"/75"/86") rarely match a custom cutout. Below is a straight answer to the questions our engineering team gets asked most often before an RFQ is issued — organized the way a hardware engineer, procurement manager, or project lead actually needs it: technical feasibility, reliability, then cost and timeline.

1. Technical Process & Feasibility

Which cutting method do you recommend — mechanical wheel-cutting or ultrafast laser cutting?It depends on your target tolerance and where the cut line falls relative to the active area. Mechanical wheel-cutting (scribe-and-break) is the lower-cost, faster-turnaround option and is suitable for straight-edge cuts with tolerances in the ±0.3–0.5mm range, well outside the array. Ultrafast (picosecond/femtosecond) laser cutting produces a cleaner, chip-free edge with tighter tolerance (±0.1mm or better) and is required whenever the cut line runs close to the TFT array, involves a curved or notched profile, or the panel will see repeated mechanical stress (transit, vibration, drop). For most direct-lit large-format panels like the 86" HT860FHD-D1500, we default to laser cutting once the margin from the active area drops below ~5mm.

Will the cut interfere with the Gate/Source traces or the TFT array?This is the first thing our engineering team checks before quoting — cutting through, or too close to, the Gate/Source driving lines or the array itself will disable rows/columns or cause immediate failure, and it isn't something that can be corrected after the fact. Before we confirm feasibility we'll need:

• The exact target outline (DXF/DWG preferred) with dimensions and datum references

• The panel's original active area and pin-out/COF layout (we can supply this once model is confirmed)

• Any mounting cutouts, corner radii, or through-holes in the same request, since these interact with the same margin budget

We'll overlay your target dimensions against the panel's Gate/Source/array map and tell you directly whether it's feasible as drawn, or whether the outline needs a small adjustment to clear the circuit — before any cutting starts.

What's the edge finish standard after cutting?Cut edges are ground and polished to remove chipping and micro-cracks, with edge flatness and chip-size limits controlled to industry-standard levels for cover glass (comparable to what you'd see on a CNC-finished cover lens). We inspect edges under magnification before a panel moves to sealing, and can share edge-inspection photos as part of the sample report.

2. Reliability & Edge Sealing

How do you seal the cut edge against moisture and liquid crystal leakage?After cutting, the exposed edge on the cell side is re-sealed with a secondary sealant — typically UV-cure edge sealant applied and cured along the full cut perimeter, sometimes combined with an epoxy reinforcement pass depending on the panel's original seal structure. The goal is to restore the same moisture/liquid-crystal barrier the original factory seal provided, not just glue the edge shut.

Can a cut panel still pass standard reliability testing?Yes — for panels destined for outdoor or embedded 24/7 use, we run them through the same class of environmental testing as our standard product line (industrial-grade, since that's the typical use case for cut panels): double 85 (85°C/85%RH) high-temperature high-humidity soak, high/low temperature cycling (thermal shock), and structural drop testing. We're happy to share test reports and pass/fail data from comparable past cutting projects once we know your target size and environment, so you can benchmark against your own qualification requirements before committing to a sample run.

Does the sealed edge cause light leakage or color shift (Mura) near the border?It can, if the backlight and diffuser layers aren't re-managed at the new edge — this is a common failure point in cheaper cutting shops. Our process re-trims and re-seats the backlight/diffuser stack at the cut edge to keep light leakage and Mura within the panel's normal border spec, and we check this optically under uniform gray/black screens before the panel ships. If your application has a visible bezel-less mounting, flag it early — it changes how tight this margin needs to be.

3. Cost, Yield & Lead Time

What's the NRE cost and sample lead time for a custom cutting project?NRE (engineering setup, tooling/fixture, and process qualification) is quoted per project once we've confirmed the target outline and panel model — it varies with cut complexity (straight edge vs. notched/curved), size, and whether laser or mechanical cutting is used. For a first-article sample run (commonly ~20pcs), typical lead time runs a few weeks from DXF confirmation to shipment; we'll give you a firm date in writing at the quotation stage, the same way we do for standard custom orders.

What yield can we expect at mass production, and what's the MOQ?Yield depends heavily on cut proximity to the array and edge complexity — simple straight cuts with generous margin run close to standard-panel yield; tight margins or complex profiles bring yield down and cost up accordingly. We'll give you a realistic yield estimate based on your specific outline, not a generic number, because a number that isn't tied to your actual drawing isn't useful for your cost model. MOQ for standard specifications starts at 1 unit; custom cutting, brightness, or bezel changes generally raise the MOQ, and the exact figure is confirmed at the quotation stage — before any deposit, not after.

To get an accurate answer on all of the above, send us:

1. Target outline (DXF/DWG) with tolerances

2. Base panel size/model of interest (e.g. 86" 1500nits HT860FHD-D1500, or another size in our 43–86" direct-lit range)

3. Application environment (indoor/outdoor, expected vibration/drop exposure, viewing distance)

Our engineers will review the array/circuit clearance directly and come back with a feasibility call, edge/reliability approach, and a written quotation covering NRE, sample lead time, expected yield, and MOQ — no agent, no markup.