CLE140AT21 LED 14.0 LTNAT21 LTN140AT21
Overview
The CLE140AT21 LED 14.0″ LTNAT21 / LTN140AT21 is a 14.0‑inch HD (1366×768) LED‑backlit LCD panel. Known by its Samsung OEM codes LTNAT21 and LTN140AT21, this screen offers clear visuals, standard HD resolution, and reliable performance for notebooks and ultrabooks with a 40‑pin eDP interface.
The CLE140AT21 LED 14.0″ LTNAT21 / LTN140AT21 is an ideal replacement for devices requiring a slim, energy‑efficient display without touch functionality.
How to Use / Install
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Power off the laptop and unplug all cables.
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Pry off the front bezel gently with a plastic spudger.
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Unscrew the four corner screws securing the existing screen.
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Disconnect the 40‑pin eDP cable from the old panel.
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Attach the 40‑pin eDP cable to the CLE140AT21 LED 14.0″ LTNAT21 / LTN140AT21 connector.
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Secure the new panel with the original screws.
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Reinstall the bezel and power on—verify HD resolution and backlight operation.
Tip: Handle the CLE140AT21 LED 14.0″ LTNAT21 / LTN140AT21 by its edges to avoid pressure marks.
Service / Warranty Options
Although purely hardware, common options include:
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Standard Purchase (12‑month manufacturer warranty)
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Extended Warranty Plan (+12–24 months)
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Professional Installation Service
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Return & Replacement Service (defect coverage during warranty)
Main Differences Between Service Plans
| Service Option | Coverage / Features | Recommended For |
|---|---|---|
| Standard Purchase | Panel + 12‑month warranty | DIY technicians |
| Extended Warranty | +12–24 months of protection | Business‑critical deployments |
| Installation Service | Expert on‑site or mail‑in fitting | Non‑technical end users |
| Return & Replacement | RMA processing for defective units | Risk‑averse purchasers |
10 Key Features of CLE140AT21 LED 14.0″ LTNAT21 / LTN140AT21
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Screen Size: 14.0″ diagonal
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Resolution: HD 1366×768 pixels
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Panel Type: LED‑backlit TFT LCD
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Connector: 40‑pin eDP (standard interface)
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Brightness: 250 nits typical
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Contrast Ratio: 600:1 typical
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Viewing Angles: 80° horizontal / 50° vertical
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Thickness: Slim design (~4.5 mm panel)
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Power Consumption: ≤3 W (typical)
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Compatibility: Direct replacement for LTNAT21 and LTN140AT21 series
Competitor Products
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LP140WH2‑TLA1 – 14.0″ HD (1366×768) LED panel, 40‑pin eDP, slim profile
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N140BGE‑EAA – 14.0″ HD TFT LCD, 40‑pin connector, standard mount