IEC 61747-3-1:2015

Overview

IEC 61747-3-1:2015 is the Blank Detail Specification (BDS) for liquid crystal display (LCD) cells within the IEC quality assessment system. It defines the required style, layout and minimum content for detail specifications that are published for standard LCD products. This edition (2015) was editorially updated to align with current ISO/IEC directives. IEC 61747-3-1:2015 is part of the broader IEC 61747 series on liquid crystal display devices.

Key topics and requirements

The standard prescribes the structure and mandatory information that a detail specification must contain, including:

• Identification: detail specification and component identification (Clauses 3.1–3.2).
• Mechanical and short description: outline drawings, optical mode, construction and applications (Clauses 4–5).
• Categories of assessed quality and marking: quality categories, marking requirements and reference data (Clause 6–7).
• Ordering information: minimum ordering data such as type reference, issue number and quality category (Clause 8).
• Limiting values and operating conditions: absolute maximum ratings, recommended operating voltage, frequency and temperature ranges (Clause 9–10).
• Electrical and optical characteristics: required parameters (e.g., current consumption, contrast ratio, viewing angle) and the format to present them (Clause 10.2).
• Test conditions and quality assessment: required test condition descriptions and the lot/periodic/qualification test groups (GROUP A, B, C and D) with references to specific test requirements (Clause 11–12).
• Additional information: guidance on supplementary data that should accompany a detail specification (Clause 13).

Practical applications and who uses it

IEC 61747-3-1:2015 is intended for organizations involved in LCD product specification, testing and procurement:

• LCD manufacturers and module designers: to prepare compliant product detail specifications for standard products.
• Quality assurance and test laboratories: to structure tests and reporting consistent with IEC lot-by-lot and qualification procedures (GROUP A–D).
• Procurement and OEMs: to specify ordering information and acceptance criteria for sourcing LCD cells.
• National standards bodies and standards writers: as a template for publishing national detail specifications aligned with IEC quality assessment.
• Compliance and certification bodies: to verify that detail specifications include required content for qualification.

Related standards

• IEC 61747-1-1:2014 (Generic specification)
• IEC 61747-3:2006 (Sectional specification)
• IEC 61747-10-2:2014 (Environmental and endurance)
• IEC 60749-14 (Robustness of terminations)

By using IEC 61747-3-1:2015 as a template, organizations ensure consistent, searchable and verifiable LCD cell detail specifications, supporting interoperability, reliable testing and streamlined procurement.