电子显示器 第 5-2 部分：视觉评估 根据观察方向的颜色辨别

[中文适用范围]： IEC 62977的这一部分是一份技术报告，描述了显示设备观看方向特性的视觉评估方法。本文档回顾了通过使用特殊测试图案来估计颜色变化的观看方向的视觉评估，ima [外文原描述]： IEC TR 62977-5-2:2021, which is a Technical Report, describes the visual assessment method of the viewing direction characteristics of display devices. This document reviews the visual assessment of viewing direction by using special test patterns to estimate colour changes, image structure, and image luminance. Experimental results are shown to reveal the effectiveness of this kind of visual assessment. This method is a valuable tool for identifying image quality issues, but physical measurements will be used to confirm display performance specifications. NOTE The visual assessment results will depend on the test pattern parameters and display setup conditions. As the viewing direction changes, characteristics such as contrast ratio, resolution, and device colour-shift simultaneously change in the perceived image.