Custom-Cut & Stretched Bar LCD Module Capability Brief

Technical & Commercial Reference for OEM / Industrial Buyers

Prepared for: Sourcing Engineers, Project Managers & Procurement Leads evaluating non-standard aspect-ratio LCD modulesReference product: S370AJ1-LE1 — 37" Native Stretched Bar LCD Module (1920×540, 1000 nits) and related cut/stretched-bar programsSupplier: HITULCD (Shenzhen Hantu Jiashi Technology Co., Ltd.)

Why This Brief Exists

Before issuing an RFQ for a custom-cut or non-standard aspect-ratio LCD, most engineering and procurement teams need the same set of answers: is the cut physically feasible, will it survive in the field, and what will it cost and how fast can it be delivered. This document answers those questions directly, organized the way a technical buyer typically evaluates a supplier.

1. Process Feasibility & Engineering Assessment

Cutting method — mechanical wheel-scribe vs. ultra-fast laserFor panels where the cut line falls outside the active array and does not cross dense TFT routing, mechanical wheel-scribe (score-and-break) cutting is the more cost-effective option and is our default for standard bar/stretched formats. For cuts that pass close to the Gate/Source driver area, narrow bezel targets, or where micro-crack risk must be minimized, we recommend ultra-fast (picosecond/femtosecond-class) laser cutting instead, since it produces a cleaner edge with lower mechanical stress. The final recommendation is confirmed per-project after we review your target dimensions against the donor panel's cell layout.

Circuit and routing clearanceBefore quoting, we map your requested cut dimensions against the original panel's Gate/Source line layout and TFT array boundary to confirm the cut will not intersect active circuitry. To run this check, we typically need from you:

• Target outer dimension, active area (A.A.), and tolerance

• Reference panel model (if based on an existing standard panel) or target resolution/aspect ratio

• Mounting orientation and any keep-out zones from your enclosure design

• Interface requirement (LVDS/HDMI/eDP) so we can confirm the FPC/connector position survives the cut

Edge quality standardPost-cut edges are inspected for flatness and micro-crack propagation under standard incoming quality control before sealing. Edge chipping and crack length are held to limits consistent with the reliability testing described below — panels outside tolerance are rejected before proceeding to sealing, so defects are not carried into the sealed module.

2. Reliability & Edge-Sealing Assurance

Sealing processCut edges are treated with a secondary UV-cure adhesive dispensing process to re-establish the moisture and liquid-crystal containment that the original panel edge provided. Dispensing parameters (bead width, cure profile) are adjusted to the specific cut geometry and panel thickness of each project.

Reliability testingCut and sealed modules go through the same reliability program as our standard modules, scaled to consumer-grade or industrial-grade requirements depending on your end application:

• Temperature/humidity (e.g. 85°C/85%RH double-85 test)

• High/low temperature storage and operating cycling

• Thermal shock cycling

• Structural drop testing

We can share test summaries from comparable prior cutting programs during the technical review stage so you can benchmark against your own qualification requirements before committing to tooling.

Optical performance after sealingThe main optical risks after cutting are light leakage along the sealed edge and localized Mura/color shift near the cut line. These are controlled through the sealing bead placement and a post-seal optical inspection pass; any unit showing visible leakage or shift outside spec is screened out before packing, and is something we report on in first-sample (T0) evaluation.

3. Cost, Yield & Lead Time

NRE and first-sample costNon-recurring engineering cost for a custom cutting program depends on cut complexity, tooling/fixture requirements, and whether laser or mechanical cutting is used — this is quoted per project once the panel and dimensions are confirmed. As a reference point, a first-sample run of 20 pieces is a realistic small-batch quantity for engineering validation, with turnaround discussed at quotation stage alongside the NRE.

Expected yield and MOQ at volumeYield on custom-cut programs is generally lower than on native (uncut) panels immediately after process qualification, and improves as cutting/sealing parameters are tuned across the first production runs — expect this to be quoted as a range rather than a single number until your specific geometry has been trialed. Standard-spec MOQ for our stretched bar products starts at 1 unit; custom cutting, brightness, or bezel changes shift the MOQ, which is confirmed at the quotation stage rather than fixed in advance.

Reference lead times (standard programs, for context)

Supplier Reference

Suggested Next Step

To move from this brief into a working quotation, share the following with our engineering team:

1. Target outer dimension, active area, and tolerance

2. Reference/donor panel model or target resolution

3. Interface and mounting/enclosure constraints

4. Application environment (indoor/outdoor, temperature range, expected duty cycle)

5. Target qualification level (consumer-grade or industrial-grade reliability testing)

With these five inputs, we can return a cutting-method recommendation, feasibility confirmation, and a first-sample quotation.

Reference product page: 38 Inch Custom LCD Display Module for Industrial OEM Products