What is IEC 61747-2 Ed.1 2018?

IEC 61747-2 Ed.1 2018 is a professional technical standard that provides guidelines for the testing and performance criteria of liquid crystal displays (LCDs) used in electronic devices. This standard, published by the International Electrotechnical Commission (IEC), has been widely adopted by manufacturers, researchers, and regulators to ensure the quality and reliability of LCD technology.

Testing Procedures and Parameters

The standard specifies various testing procedures and parameters that need to be followed to evaluate different aspects of LCD displays. These include optical measurements, mechanical properties, electrical characteristics, and environmental tests. Each parameter has specific requirements and acceptance criteria that need to be met for the display to comply with the standard.

Optical Measurements

One important aspect covered by IEC 61747-2 Ed.1 2018 is the optical performance of LCDs. This includes parameters such as luminance, contrast ratio, color gamut, and viewing angle. The standard defines precise measurement methods using specialized instruments to accurately assess these characteristics.

Luminance refers to the brightness level of the display, measured in candelas per square meter (cd/m²). Contrast ratio represents the difference between the brightest white and the darkest black that can be displayed simultaneously. Color gamut defines the range of colors that can be reproduced by the display. Viewing angle indicates the maximum angle at which the display remains visible without significant distortion or color shift.

Mechanical Properties and Environmental Tests

IEC 61747-2 Ed.1 2018 also covers mechanical properties and environmental tests for LCDs. Mechanical tests assess the behavior of displays under various stresses like temperature changes, mechanical shocks, and vibrations. These tests are essential to ensure that LCDs can withstand typical usage conditions without failure or degradation.

Environmental tests focus on the performance of LCDs under different temperature and humidity conditions. Displays are subjected to extreme temperatures and humidity levels to evaluate their behavior and reliability in harsh environments.

Compliance with IEC 61747-2 Ed.1 2018 ensures that LCD displays meet established industry standards for quality, performance, and reliability. Manufacturers can use this standard to benchmark their products, while consumers can rely on it to make informed decisions about the display technology they choose. Ultimately, adherence to this technical standard strengthens the market for LCDs by promoting consistency and reliability across different devices and applications.