Black Spots on a Display: Defect Classes and Where They Come From
Black spots on a display: the defect classes behind them, which originate in the panel or in assembly, how they are detected and how…
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Technical blog category
Quality, Testing & Compliance
Proving the module works: defect classes, mura and uniformity, AOI and AQL inspection, qualification and reliability testing, and the certifications buyers are held to.
Quality, Testing & Compliance articles
33 articles in this category.
Which Display Certifications Actually Matter for Your Market
Differentiation page: publish the linked new page before the foundation rewrite of the old page. | Meta description: Which display certifications matter: component versus…
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Building a Display Qualification Test Plan: From Prototype to Production Release
Building a display qualification test plan: environmental, mechanical, optical and electrical tests, sample sizes, acceptance limits and requalification.
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RoHS, REACH and Conflict-Minerals Documentation for Display Modules
Substance compliance for a display module is not one document. It is a small set of declarations, each answering a different regulation, each with…
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IEC 62368-1 for Display-Based Equipment: What It Changes for Your Build
Safety standards for electronic equipment changed shape a decade ago, and the change affects how a display is treated inside a product. Instead of…
Read the noteDisplay Specification Terminology: The Terms Buyers Most Often Confuse
Most specification disputes come from a term that both sides read differently. The number is not wrong; the definition is. This glossary pairs each…
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Thermal Design for Sealed Display Enclosures
A sealed display enclosure solves ingress, cleaning and condensation problems and creates a thermal one. Without ventilation there is no path for heat to…
Read the noteRMA and 8D Field Failure Analysis for Display Modules
Much of what the RMA is trying to reconstruct could have been captured at goods-in: see what to test when LCDs arrive and how…
Read the noteMura and Luminance Uniformity: Causes, Detection and Acceptance
Mura is the display industry's word for unevenness: patches, streaks or blotches that break the uniformity of an otherwise correct image. It is the…
Read the noteISO 9241-307 Pixel-Defect Classes Explained for Buyers and QC
Pixel-defect arguments are almost never about whether a defect exists. They are about whether the defect was within the accepted class - and that…
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