47.6" Custom Bar LCD (Open-Cell / FOB) for Railway Passenger Information Displays

Model: DV476FKB-NV0 | HITULCD Manufacturing

Prepared for: Overseas engineers, sourcing/procurement managers, and project leads evaluating a custom-cut stretched-bar LCD for railway, transit, and passenger-information deployments.

1. Product Overview

The DV476FKB-NV0 is a 47.6" open-cell (FOB) TFT-LCD, stretched to a 5.33:1 bar format for use in railway carriage displays, platform information boards, and passenger information systems (PIS). It is supplied as glass + COF driver IC, without backlight, allowing integrators to pair it with a custom backlight/mechanical assembly matched to their enclosure design.

This is a customization-first product line — most projects begin from a standard-size cell that HITULCD cuts, seals, and rebuilds into the customer's target dimensions. If your project requires a size not shown in our catalog, the notes below outline how our engineering team typically works with buyers through that process.

2. Cutting & Engineering Feasibility — What We Confirm Before Quoting

Custom-cut bar displays carry real engineering risk if the cut line isn't planned against the panel's internal layout. Before any cutting project is quoted, our engineering team works through the following with the customer:

• Cutting method — Selection between mechanical wheel scribing and ultra-fast laser cutting is made per project, based on target tolerance, edge finish requirements, and order volume. Laser cutting is generally favored for tighter tolerances and lower micro-crack risk on high-volume programs; mechanical scoring can suit larger tolerance, lower-cost prototype runs.

• Gate/Source & TFT array clearance — Every custom cut size is checked against the original panel's Gate/Source trace routing and active array boundary before it's confirmed as feasible, so the cut line does not intersect active circuitry.

• What we need from you to run this check — target outline dimensions (or A.A. size), any keep-out zones for your enclosure, tolerance requirements, and interface/connector position. We can also work backward from your enclosure drawing.

• Edge finish — Cut edges are ground and polished to a defined flatness/roundness standard, with micro-crack propagation controlled through the grinding process. Specific edge-quality acceptance criteria are confirmed at the DFM (design-for-manufacture) stage per project, since they can vary by final module thickness and end-use environment.

For your RFQ, it helps to include: target outline size and tolerance, mounting/enclosure drawing (if available), interface preference (LVDS/HDMI/VGA), and expected annual volume.

3. Reliability & Sealing

Because a cut edge removes the panel's original factory seal, re-sealing is the critical reliability step in any custom-cut project:

• Sealing process — Cut edges go through a secondary sealing step (e.g., UV-cure edge sealant / dispensed edge glue) to restore moisture and liquid-crystal containment at the new edge.

• Reliability validation — Custom-cut modules can be built and qualified to consumer-grade or industrial-grade test regimes depending on the application (railway/transit programs typically request industrial-grade). Test protocols such as high-temp/high-humidity (double-85), thermal shock cycling, and structural drop testing can be run against your target spec — we'll confirm applicable standards, sample sizes, and pass/fail thresholds once the panel size and use environment are set, and can share results from comparable past cutting projects on request.

• Optical performance at the cut edge — Edge-area light leakage and color shift (Mura) are inspection points on every cut sample; acceptance criteria are set against your viewing distance/environment at sign-off.

4. Cost, Yield & Lead Time

• NRE / tooling cost — Custom cutting projects carry a one-time NRE covering cutting fixture setup and DFM verification. The exact figure depends on cut complexity and whether new cutting tooling is required — confirmed at quotation once your target dimensions are reviewed.

• First sample (prototype) lead time — Typically quoted per project once the cut plan is finalized; standard non-custom lead time on catalog sizes is 2–3 weeks, with 4–6 weeks typical for custom-cut/custom-brightness projects, including first-article samples.

• Expected mass-production yield — Yield on cut-and-sealed modules is influenced by cut geometry, tolerance, and edge sealing requirements; we'll share a yield-based pricing model and reference data from comparable cutting programs during technical review.

• MOQ — Standard-spec MOQ is 1 unit; custom brightness, cutting, or bezel changes may adjust MOQ, which is confirmed at quotation.

5. Quality, Certifications & Supplier Verification

Registered entity: Shenzhen Hantu Jiashi Technology Co., Ltd. (Unified Social Credit Code: 91440300306068446B) — established May 2014, active status, factory in Longhua District, Shenzhen — publicly verifiable against Chinese business registries.

6. Commercial Terms

• Shipping (Incoterms): EXW / FOB / CIF available

• Payment: T/T (standard for bulk), L/C (large volume), PayPal (buyer-protected samples), O/A (long-term partners)

• Samples: Available before bulk order commitment

7. Suggested Next Step

For an accurate cutting feasibility check and quotation, please share:

1. Target outline dimensions and tolerance

2. Enclosure/mounting drawing (if available)

3. Required brightness, interface, and touch (if any)

4. Application environment and target certification level

5. Expected sample and annual production quantities

Our engineering team will confirm cut-line feasibility against the panel layout, propose a sealing/reliability test plan, and return NRE, sample lead time, and MOQ specific to your project.

Contact: chenhua@hitulcd.com | +86 186 8232 8732