Webinars

OLED Pixel Measurement & Correction

Organic light-emitting diodes (OLEDs) enable the latest advances in display technology, but because each OLED pixel acts as its own emitter, brightness and color from pixel to pixel is characteristically inconsistent. The level of non-uniformity in OLED displays varies not only from product to product, but even among devices within the same product lot, challenging manufacturers of OLED devices to meet the market’s high expectations for quality at a pace that matches demand. Automated visual inspection systems like imaging colorimeters offer the optical resolution necessary to measure OLED displays on the pixel and sub-pixel level. With these measurements, pixel-level correction can be performed on low-quality displays to improve the yield of quality devices in-line. This process, referred to as OLED Demura, adjusts the luminance and the chromaticity of each OLED pixel to produce displays with an entirely uniform appearance. In this webinar, Radiant Optical Software Engineer Alex Podschwit presents solutions for OLED pixel-level measurement and correction and describes a Demura method using high-resolution Radiant colorimeters and software. Topics include:Emerging OLED display technologiesInspection challenges for displays with pixel-level emissionsMethods for measuring the highest-resolution displaysApplying pixel-level correction to OLED displays using Demura methodsAn audience Q&A with the presenter follows the presentation. Read More...
Organic light-emitting diodes (OLEDs) enable the latest advances in display technology, but because each OLED pixel acts as its own emitter, brightness and color from pixel to pixel is characteristically inconsistent. The level of non-uniformity in OLED displays varies not only from product to Read More...

Solutions for IES/LDT File Creation

Luminous intensity data is critical for lighting design. Captured in photometric data files, luminous intensity data enables lighting designers to observe the total output and angular spread of a light source. IES and EULUMDAT (LDT) are the two standard file formats used for electronic transfer of photometric data. To create IES and LDT files, designers have their choice of systems. Traditionally, goniophotometers have been used to generate very accurate photometric data, but these systems require very large lab spaces and expensive equipment. An alternative solution uses a near-field measurement system, which can generate equally accurate data with minimal lab space, increased speed, and lower cost. In this webinar, Radiant Applications Engineer Austin Piehl presents solutions for creating IES and LDT files and demonstrates the process of analyzing light measurement data and exporting these files using Radiant’s PM-NFMS™ Software. Topics include:Solutions for IES and LDT file creation, from conventional goniophotometry to near-field measurement systemsThe process of collecting light measurement dataTypes of data acquired: comparing near- and far-field dataApplications of Radiant’s ProMetric® Near-Field Measurement System (PM-NFMS)Considerations for the LM-79 methodAn audience Q&A follows a presentation and demonstration of Radiant’s PM-NFMS Software for IES and LDT file generation. Read More...
Luminous intensity data is critical for lighting design. Captured in photometric data files, luminous intensity data enables lighting designers to observe the total output and angular spread of a light source. IES and EULUMDAT (LDT) are the two standard file formats used for electronic transfer of Read More...

Evaluating Viewing Angle Performance Using Radiant’s Conoscope Lens

From wearables to embedded displays, developments in display technology have increased the need to evaluate the visual quality of light from every view angle. To ensure that brightness and color remain consistent across LCD and OLED displays, even when embedded into assemblies or viewed at variable angles, manufacturers are seeking automated systems to control view performance from design to production. The challenge calls for a view angle measurement solution that is fast, easy to implement, and practical for in-line integration.In this 30-minute webinar, Radiant Product Manager Bo Magluyan demonstrates the capabilities of Radiant’s new conoscope lens for measuring view angle performance of displays with greater speed, accuracy, and cost-efficiency as compared to competitive solutions.Fast, accurate, low-cost view angle measurement solutionAddress complex view angle challenges such as OLED color consistency and defects in embedded displaysReduce the cost and complexity of equipment with a single, compact camera systemUse the same measurement system from R&D to in-line quality control, with ability to acquire additional measurements by switching camera lensesA live audience Q&A follows a review of Radiant’s conoscope lens and a demonstration of the setup and use of the conoscope lens system for measuring a flat panel display. Read More...
From wearables to embedded displays, developments in display technology have increased the need to evaluate the visual quality of light from every view angle. To ensure that brightness and color remain consistent across LCD and OLED displays, even when embedded into assemblies or viewed at variable Read More...

Improving Automotive Inspection with Light & Color Measurement Systems

Vehicles are more illuminated than ever before. Adaptive headlamps guide our way in changing light and weather conditions, head-up displays (HUDs) provide real-time information about our surroundings, and infotainment displays connect us to the outside world. A vehicle's safety and perceived quality are increasingly contingent on the quality of light, which must be measured to control the precise and meaningful variations in brightness and color that enable operation. While standard machine vision systems can evaluate images for limited pixel-level contrast variations to detect defects, variations of light and color as perceived by humans are much too delicate for standard 2D imaging.In this webinar, Radiant Vision Systems introduces light and color measurement solutions designed scientifically to enable the evaluation of light using the same tolerances of perception as the human eye. Webinar host and Radiant's Automotive Business Leader, Matt Scholz, presents photometric and colorimetric cameras for brightness and color evaluation. In a conversational broadcast with Vision Systems Design's Editor-in-Chief John Lewis, Matt discusses the differences between machine vision and photopic imaging solutions, and defines the applications of light measurement used to evaluate components of today's illuminated vehicles - from tail lights to dome lights to displays.During this webinar, attendees will learn:How imaging photometers and colorimeters optimize light, color, and feature measurement in automotive lighting and displaysThe advantages of photometric inspection over standard machine vision systemsApplications of light and color measurement in automotive components, from headlamps to HUD displaysHow to choose an imaging system for your light measurement applicationAudience questions are taken throughout the presentation and answered in discussion with the presenters. Read More...
Vehicles are more illuminated than ever before. Adaptive headlamps guide our way in changing light and weather conditions, head-up displays (HUDs) provide real-time information about our surroundings, and infotainment displays connect us to the outside world. A vehicle's safety and perceived Read More...

Truly Automated Light and Color Measurement for Tell-Tales and Indicators

Evaluating the accuracy of light and color across instrument clusters is a challenge compounded by several factors. The number of indicators, the varying location of symbols, and the range of colors on an automotive display prove complex for automated inspection systems and human inspectors alike.In this 30-minute webinar, Radiant Product Manager Shannon Roberts presents Auto-POI – the latest technology for light and color measurement of multi-point inspection areas using an Imaging Colorimeter, enabling truly automated evaluation across entire instrument clusters.The fastest, most intuitive evaluation of complex instrument clustersApply Automatic Points of Interest (POI) in software to measure all illuminated characters on a display at onceToggle between programmed luminance and color thresholds to evaluate symbol sets for cross-symbol uniformity and harmonizationAutomatically create accurate POIs even when displays are rotated or movedThe presentation is followed by an audience Q&A. Read More...
Evaluating the accuracy of light and color across instrument clusters is a challenge compounded by several factors. The number of indicators, the varying location of symbols, and the range of colors on an automotive display prove complex for automated inspection systems and human inspectors alike. Read More...

Automating Visual Inspection in Display Manufacturing

Display manufacturers continue to automate their production processes, but still rely heavily on human inspectors to ensure visual quality. Measurement resolution and computing technology have reached a point where automated solutions are now able to reproduce - and exceed - the results attained by human inspectors. In this 30-minute webinar, Radiant's Eric Eisenberg describes the opportunity presented by automated visual inspection, as well as keys to its successful implementation in high-volume manufacturing: Inspection tasks in high-volume manufacturing Instrument selection: choosing the right tool for the jobCombining technologies to accomplish specific applications Integration challenges in manufacturing environments The presentation is followed by an audience Q&A Read More...
Display manufacturers continue to automate their production processes, but still rely heavily on human inspectors to ensure visual quality. Measurement resolution and computing technology have reached a point where automated solutions are now able to reproduce - and exceed - the results attained by Read More...

Visual Surface Inspection with Imaging Photometers

Manufacturers of high end consumer electronics often rely on manual quality inspection to catch flaws before bad products leave the factory. However, many have not yet found a repeatable and reliable solution for detecting the subtle, low-contrast, and randomly occurring defects that can make the difference between a perfect product and a customer return.Automated visual inspection with ProMetric® imaging photometers and TrueTest™ software can help manufacturers solve these difficult inspection challenges.In this 30-minute webinar, Radiant's Project Engineering Manager, Andy Blowers, PhD, demonstrates how Radiant's CCD-based imaging technology, employed by many of the world's leading consumer electronics companies to inspect display quality, also detects challenging defects in non-lit surfaces more reliability than manual inspectors or standard machine vision solutions. Read More...
Manufacturers of high end consumer electronics often rely on manual quality inspection to catch flaws before bad products leave the factory. However, many have not yet found a repeatable and reliable solution for detecting the subtle, low-contrast, and randomly occurring defects that can make the Read More...

Applications of High Resolution Measurement: 4 Display Inspection Solutions for the 4K Age

Display technologies continue to evolve rapidly. As the trend continues toward larger, higher-resolution screens, and emerging technologies pose new challenges on the production line, manufacturers need inspection systems that will ensure a flawless product without impacting production speeds.In this 30-minute webinar, Radiant's Chief Solutions Officer, Doug Kreysar, will show you how new high-resolution measurement solutions incorporating ProMetric® imaging colorimeters and TrueTest™ software are helping today's manufacturers accomplish this in the following applications:Detailed detection of pixel, line, and particle defectsMura detection in high definition displaysPixel luminance measurements and OLED screen correctionSurface flaw detection Read More...
Display technologies continue to evolve rapidly. As the trend continues toward larger, higher-resolution screens, and emerging technologies pose new challenges on the production line, manufacturers need inspection systems that will ensure a flawless product without impacting production speeds.In Read More...

Quality-Driven: Automotive Display Testing

Displays have become a central feature of today's automobiles, with touchscreen-controlled infotainment and navigation systems, digital instrument clusters, and head-up displays now extending well beyond the luxury vehicle market.Defect detection of in-vehicle displays faces a unique set of challenges. These displays will be viewed in widely varied lighting and must withstand harsh environmental conditions. Detection of subtle flaws that could worsen as a result of these circumstances is critical to ensuring a high quality display throughout the lifetime of the vehicle.Daniel van Brecht, Distribution Account Manager for Radiant Vision Systems, has helped top global manufacturers implement display testing solutions to ensure an experience that reflects the quality of their brand. In this 45-minute webinar, he presents:Testing Considerations for Automotive DisplaysMura DetectionTesting to the Black Mura Standardas defined by the German Automotive OEM Work Group DisplaysBoth automakers and suppliers to the industry will find this webinar informative. Read More...
Displays have become a central feature of today's automobiles, with touchscreen-controlled infotainment and navigation systems, digital instrument clusters, and head-up displays now extending well beyond the luxury vehicle market.Defect detection of in-vehicle displays faces a unique set of Read More...

Finding Mura in FPDs: Hands-On Defect Detection with TrueTest™

See what defect detection looks like through the "eyes" of our TrueTest™ automated visual inspection software as we demonstrate a display inspection in real-time. You'll learn how mura and other subtle defects can be easily identified and quantified during the manufacturing process using a ProMetric® imaging colorimeter and TrueTest™. In this 25-minute webinar, Sean Skelly, Radiant's Software Development Manager, presents the types of tests that can be performed, how to set up a Sequence in TrueTest™, and real-time application results and analysis. Read More...
See what defect detection looks like through the "eyes" of our TrueTest™ automated visual inspection software as we demonstrate a display inspection in real-time. You'll learn how mura and other subtle defects can be easily identified and quantified during the manufacturing Read More...