In today’s automobiles, versatile high-resolution touchpads have replaced analog gauges and knobs. Modern smart lighting adjusts to changing conditions. Radios have been replaced with multi-function, touch-sensitive infotainment displays. Generic sealed-beam and capsule headlamps have been superseded by stylish, aerodynamically-efficient, model-specific LED and HID headlamp assemblies. Head-up displays (HUDs) are becoming an automotive standard.
Automobiles are getting smarter and smarter—various integrated camera and sensing systems can now help you back up safely, park, avoid a collision, stay in your lane, alert you to a vehicle in your blind spot, and supplement your vision at night, among other features. The Advanced Driver-Assistance Systems (ADAS) that have these capabilities typically use embedded-vision, RADAR, and/or LiDAR-based technology to continuously monitor the environment outside the vehicle.
My blog a few weeks ago took a dive into the world of automotive freeform displays, and discussed how these novel shapes have given auto- and panel-makers the ability to freely design displays into any integration space.
With all the places you find digital displays these days, evidence suggests it might not be that hip to be square. Displays that break the mold of the standard rectangular, flat-panel design enable a highly organic integration of display features into shapes and sizes that are a much better fit with their use and environments.
Emissive OLED, microLED (μLED), and miniLED are emerging as the next wave of technology in the display market. This is exciting because these displays promise improved display performance and visual appearance with greater efficiency than other display technologies, thanks to their individually emitting pixel elements. However, high costs due to material prices and manufacturing yield issues have hindered widespread technology adoption for these displays.
Display uniformity is important for visualization of digital information, but perhaps nowhere is this more critical than in industries where displays are relied upon for vehicle operability and safety. Automotive display quality is rigorously tested to ensure visibility—not only to safeguard a positive brand perception, but to comply with industry regulations.
OLEDs (Organic Light-Emitting Diodes) are emerging as the next wave of technology in the flat-panel display market. This is exciting because OLED displays promise improved display appearance for both smartphones and large-format TVs at lower cost and power than other display technologies.
Organic light-emitting diodes (OLED) and microLEDs (μLED) are emerging as the next wave of technology in the display market. Display screens based on these emissive layers promise improved performance and visual appearance with greater efficiency than other display technologies, thanks to their individually driven pixel elements.
Take a look at the basic operating principles and performance tradeoffs of imaging colorimeters, a class of instruments that enable spatially resolved measurements of color and luminance that are directly applicable to displays and solid-state sources.
Curved displays offer manufacturers new design flexibility for vehicle interiors, but also introduce challenges for display measurement. This paper presents the results of several lab tests measuring a 1500R LED-lit curved display using an imaging colorimeter and analysis software to evaluate the effectiveness of various methods and system specifications to optimize the accuracy of small defect detection (pixels and lines) in automotive curved displays.
Curved displays offer manufacturers new design flexibility for vehicle interiors, but also introduce challenges for display measurement. Display test methods developed for traditional flat panel displays are inadequate for accurately evaluating the visual qualities of curved displays, which are affected by view angle changes along their curvature that result in focus and contrast differences from center to edge.
This year’s Nobel Prizes in physics were announced on October 2. The three recipients include American Arthur Ashkin, at 96 the oldest Nobel Laureate, for his work developing “optical tweezers.” The other 2018 recipients are Frenchman Gerard Mourou and Canadian Donna Strickland—only the third woman in history to ever receive the Nobel for Physics—for their work with pulsed lasers.
This document explains the general calibrations required for imaging colorimeters. It also explains the specific calibrations that enable Radiant Vision Systems ProMetric I-series imaging colorimeters to provide highly accuracy data in high-volume manufacturing settings.This Spec Sheet features:Calibrations in Imaging ColorimetersFlat-field calibrationLuminance calibrationColor calibration
ProMetric I is designed to address the demands of high-volume manufacturing of flat panel displays (FPDs), illuminated keyboards, and LED lighting products. Whether you need to expand test coverage or increase throughput, ProMetric I delivers the required performance for highly accurate color and luminance measurements in an automated manufacturing environment.This Spec Sheet features:Product Highlights and Key FeaturesHardware Specifications
The ProMetric® I family of imaging colorimeters is designed to provide highly accurate color and luminance measurements in high-volume manufacturing environments.
This Spec Sheet features:Comparison chart of the technical specifications of Radiant's ProMetric I and ProMetric Y imaging Colorimeters and Photometers
Blue light has been getting some attention in popular news lately regarding the potential negative effects of exposure to humans. The widespread adoption of phosphor-coated white LEDs (which encompass blue light wavelengths) in everyday use has raised concerns and spurred new research. Blue light from LED-based display devices such as smart phones and laptops has sometimes been blamed for retinal damage, insomnia, and even cancer.
Global television sales have traditionally spiked during World Cup Years, and 2018 was no exception. In countries around the world— from small-screen TVs to giant, high-definition flat-panel displays; across countries from Ireland to India—sales were up.
Join a webinar organized by the editors of Tech Briefs Media Group and hosted by several experts in the machine vision field (including Radiant Vision Systems Vice President of Sales and Marketing, Hubert Kostal). Live broadcast August 23 at 9AM PDT (12PM EDT).
Human perception is the ultimate standard for determining the visual quality of a device. However, the use of human inspection as a quality control method for development or production of devices is problematic because of the statistical variation between observers.