White Papers

Detailed information on our technology and solutions, written by industry experts.

How to Use Imaging Colorimeters to Improve OLED Display Production Testing Efficiency and Yields

other display technologies. As OLED manufacturers work to launch commercially viable OLED-based products, high costs due to manufacturing yield issues have hindered widespread OLED technology adoption, most dramatically in large-format implementations, as they drive up end customer prices. This paper describes how to use imaging colorimeters to improve OLED display production testing efficiency and yields for optimal price/performance.

In this White Paper, you will learn about:

  • Manufacturing Challenges of OLED Technology
  • Applications of Imaging Colorimeters to OLED and Other Emissive Display Manufacturing
  • The Process of "Demura" for Emissive Display Measurement and Correction
  • How Correcting OLED Displays Improves Yield and Customer Experience

Download this White Paper

Automated Solutions for SAE Standard HUD Measurement

the requirements of the new SAE J1757-2 standard and outlines the advantages of automated measurement systems.

In this White Paper, you will learn about:

  • The SAE (Society of Automotive Engineers) new standard for measuring HUDs: SAE J1767-2
  • Advantages and disadvantages of current SAE-compliant HUD measurement systems
  • Automated Alternatives to current test methods: imaging colorimeters and photometers
  • How automation simplifies SAE measurement criteria

Download this White Paper

Guide to CCD-Based Imaging Colorimeters

powerful tools can be tailored to meet a your specific application requirements. Selecting the right CCD-based imaging colorimeter requires understanding a few basic trade-offs in imaging colorimeter architecture. This guide will help you determine right configuration for your needs.

In this White Paper, you will learn about:

  • CCD technology
  • Noise reduction and types of noise
  • Color accuracy related to filters
  • Types of measurement errors and their causes
  • How to choose the best imaging colorimeter for your application

Download this White Paper

How to Use Imaging Colorimeters for Automated Visual Inspection of Displays

A fundamental difference between imaging colorimetry and traditional machine vision is imaging colorimetry's accuracy in matching human visual perception of light and color. This white paper describes how imaging colorimetry can be used in a fully-automated testing system to identify and quantify defects in high-speed, high-volume production environments.

In this White Paper, you will learn about:

  • Challenges of evaluating displays
  • Measurement components and setup to achieve Automated Visual Inspection (AVI)
  • Using AVI to detect defects in displays

Download this White Paper

Method for Repeatable Measurement of Sparkle in Anti-Glare Displays

can appear grainy to a human observer. Measuring perceived sparkle ensures that the quality standard for AG displays is driven by the intended experience of the viewer. Such a measurement can be used not only in quality control during display production, but also in supplier qualification by OEMs who source third-party displays for integration. This paper describes precise geometric, optical, and software parameters of a sparkle measurement method, which has been proven to match human visual perception of display quality with repeatable results. Using this method, OEMs and manufacturers of displays can define precise, measurable tolerances for sparkle and establish standard quality control processes for anti-glare (AG) displays.

In this White Paper, you will learn about:

  • Anti-glare (AG) layer properties and their effect on visual display quality
  • Tools for isolating sparkle for accurate AG display measurement
  • System and measurement parameters that enable repeatable quantification of sparkle percentage
  • How data has been correlated with human perception of display quality

Download this White Paper