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Blog Posts

WHICH PARAMETER BETTER MEASURES ORANGE PEEL? DOI OR RIQ?

Distinctiveness of Image (DOI) and Reflected Image Quality (RIQ) are parameters used for measuring the quality of a highly polished, coated or chromed surface. Read More

HOW TO QUANTIFY ORANGE PEEL

Uneven film formation with hills and valleys in paint resembling the skin of an orange is know as Orange peel. It is a certain kind of finish that may develop on painted cast surfaces, screen protectors. Read More

DOI(DISTINCTNESS OF IMAGE): PARAMETERS USED FOR MEASURING ORANGE PEEL

A DOI of 100 indicates perfect image reflection and the value decrease with Orange peel effect, haze (brush marks, scratches, and dust) on a surface. Read More

HOW IMPORTANT IS TO MEASURE REFLECTANCE HAZE

Reflection haze, caused by micro textures on a coated surface, can result in poor reflective image contrast on surface with halos around it. Refection haze is caused by poor dispersion, raw material incompatibility, polishing marks, stoving, drying or curing conditions. Read More

Basic Display Metrology - Part 1

Electronic display devices go through a series of adjustment and calibration to ensure performance standards. This article explains briefly some of the performance criteria. Read More

Basic Display Metrology - Part 2

Konica Minolta Display Color Analyzer CA-410 with wide luminance measuring range from 0.001 to 5,000 cd/m2, is capable of measuring extremely low to high luminance. Read More

怎么测试手机屏幕的性能和色彩精确度

手机屏幕外在的属性已经高度同质化。若想在这竞争激烈的手机市场上取得差异化优势,屏幕的性能可是不同手机之间差异化的关键。屏幕的亮度有多高, 对比度规格如何, 色域范围有多大都大大的影响手机屏幕的性能和色彩精确度。若想要测试这些项目,专业的测试仪器是必需的。 阅读更多

屏幕Mura测量

ppMura缺陷是一种最为常见的显示器缺陷。Mura简单来说是指显示器亮度以及色彩的不均匀。Mura缺陷可分类为 “亮度mura” 以及“色度mura”。大多数厂商都使用熟练的工人以及肉眼检测Mura缺陷。虽然人工检测可提供人类视觉的优势,但由于检测的时间很短、缺陷范围很广、注意广度有限、疲劳等原因,人工检测的评估具有主观性。若想要准确测量屏幕mura,专业的成像色度计是必需的。 阅读更多

智能手机显示器色域的评估

随着互联网上视频图像内容的增加,广大用户对于视智能手机显示器的色彩精准期望也增加。若想手机显示器能显示特定颜色,色域评估是必需的。显示器色域简单来说是指它们能显示的色彩范围和它们在色彩空间中所占的百分比。 阅读更多

智能手机显示器性能的光学测量参数

显示器的性能一直以来都是智能手机的关键因素之一。因为它们能影响智能手机所有视频图像内容的质量。其后,对消费者的实际使用也有很明显的影响。机发光二极管显示器(Organic Light-Emitting Diodes,简称OLED)是目前应用最广泛的智能手机显示器。与其他显示器相比,OLED不需要背光,导致显示屏更薄,功耗更低。阅读更多

智能手机机身的色差检测

一个高端的智能手机不仅要有很好的显示器质量以及卓越的电池寿命,它也要具备优良的外观。目前高端手机机身的主要材质以玻璃或金属为主。机身的颜色对于智能手机外观质感的影响重大,是影响消费者视觉观感的首要因素。 阅读更多