28" Custom Stretched LCD Module (DV280FBM-NB1) — Technical & Sourcing Brief for OEM Buyers

Prepared for: Overseas hardware engineers, sourcing/procurement managers, and project owners evaluating a custom-cut bar-format TFT-LCD for OEM integration.

1. Product Snapshot

This is a stretched-bar format module — produced by precision-cutting a standard-size TFT panel down to an ultra-wide aspect ratio. It's built for shelf-edge signage, kiosks, vending/refrigerator displays, transportation information bars, and other space-constrained OEM enclosures where a standard 16:9 panel doesn't fit.

2. Cutting Process & Engineering Feasibility

Custom bar-format panels are made by cutting a larger mother panel down to your target dimensions. Before quoting, our engineering team evaluates the following:

• Cutting method selection. Depending on target size, tolerance, and edge quality requirements, we select between mechanical wheel scribing (cost-efficient for straight-line cuts on standard aspect adjustments) and ultrafast laser cutting (tighter kerf control, lower micro-crack risk, preferred when the cut line runs close to active circuitry). The recommendation is confirmed once we see your target outline.

• Trace and array clearance check. Every cut is verified against the panel's Gate/Source driver trace layout and TFT array boundary to confirm the new outline does not intersect active circuitry or damage driver ICs. This is the single most important feasibility gate in early-stage review.

• What we need from you to confirm feasibility:

• Target outline drawing (DWG/DXF) with critical dimensions and tolerances

• Preferred active area / viewing area position relative to the original panel

• Mounting/bezel constraints (if the cut edge interfaces with a housing or gasket)

• Interface requirements (LVDS/HDMI, connector position)

• Edge quality standard. Post-cut edges are inspected for flatness and micro-crack propagation under standard QC sampling; edges exceeding chip/crack tolerance are rejected before sealing. Specific edge-strength and cosmetic AQL criteria are provided in the customization quotation package, since acceptance limits vary by cut geometry and end-use (indoor kiosk vs. outdoor/vibration environments).

3. Reliability & Edge Sealing

Cutting a panel exposes the internal layers at the new edge, so sealing integrity is central to long-term reliability:

• Sealing process. Cut edges receive a secondary sealing treatment (UV-cure edge sealant / dispensed adhesive process, selected per panel structure) to prevent liquid crystal leakage and moisture ingress at the exposed edge.

• Reliability validation. Cut modules are put through standard environmental qualification appropriate to the target application — commonly high-temperature/high-humidity soak (e.g., 60°C/90%RH or equivalent double-85 testing), thermal cycling/cold-hot shock, and mechanical drop/vibration testing for units going into transportation or kiosk enclosures. Test protocol and pass/fail criteria are matched to your end application (consumer vs. industrial duty cycle) and shared as part of the DVT report for your project.

• Optical performance at the seal line. A properly sealed and cut edge should show no light leakage or Mura (color shift/brightness non-uniformity) at the border of the active area. This is checked visually and photometrically during incoming inspection on each qualification batch before mass production sign-off.

4. Cost, Yield & Lead Time

Production scale: 12,000+ units/month capacity, 12-month product warranty with ongoing engineering support.

5. Why Source This From HituLCD

• Direct factory access — Shenzhen Hantu Jiashi Technology Co., Ltd. (est. 2014, Unified Social Credit Code 91440300306068446B), no trading-company markup, engineering team accessible directly for spec discussion.

• In-house cutting-to-assembly workflow — cutting, sealing, module assembly, and testing managed under one roof, reducing handoff risk between subcontractors.

• OEM/ODM proven path — from prototype sample through repeat production programs, with documented QC and test records available for buyer audit.

• Trade-ready terms — EXW / FOB / CIF shipping options; T/T, L/C, PayPal (sample orders), and O/A terms for established partners.

6. Next Step for Your Project

To move from feasibility discussion to a firm quotation, send us:

1. Your target outline drawing (or the panel size/aspect ratio you need)

2. End application and environment (indoor/outdoor, static/vibration exposure, expected duty cycle)

3. Estimated annual volume and program timeline

Our engineering team will confirm the cutting method, sealing approach, and provide an NRE + sample lead-time estimate directly.

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