Feature: Displays
Figure 2: Bit rate and jitter settings
Through these assessments, it is confirmed that sink devices can reliably receive high-quality video and audio signals. Anritsu offers testing solutions designed specifically to meet the challenges presented by DisplayPort 2.1 certification, as well as previous standards like DisplayPort 2.0 and 1.4. By combining Anritsu’s Signal Quality Analyzer-R MP1900A with automation software from GRL or Teledyne LeCroy, users can fully automate the verification of data transmission quality and signal calibration; see Figure 1. This sink test solution for DisplayPort 2.1 has been certified by VESA. It includes Anritsu’s MP1900A, a modular BERT and the automation software. The MP1900A supports next-
generation Ethernet and other high- speed interfaces through a pulse pattern generator, capable of producing high-quality, multi-channel NRZ/ PAM4 signals over a broad bandwidth. It also features a high-sensitivity error detector and jitter modulation sources for detailed jitter tolerance testing. By integrating it with oscilloscopes and automated measurement software, the equipment enables precise jitter tolerance and margin signal calibration, as well as thorough sink device testing. Combining the MP1900A with
automation software from GRL or Teledyne LeCroy ensures the
26 March 2026
www.electronicsworld.co.uk
Figure 3: Bit rate, jitter and noise settings
reproducibility of measurements whilst significantly reducing the overall testing workload. The solution also enables the automated measurement of DisplayPort signal transmission in alternative mode via USB Type-C connectors.
Future developments DisplayPort has evolved beyond the boundaries of conventional video transmission standards, becoming a next-generation connectivity platform that combines safety, security and high performance. As the demand for advanced visual
experiences grows, DisplayPort remains at the forefront of digital connectivity, playing a key role in enabling efficient and reliable transmission of video and audio between source devices and monitors. The standard continues to evolve, even in specific versions for certain sectors. For example, the automotive sector has recently seen rapid advancements in vehicle display technology, with higher resolutions and greater variety of in-car displays. This trend has driven a strong demand for technologies that enable the safe and efficient connection and control of multiple displays within vehicles. In response, VESA has established the DisplayPort Automotive Extension v1.1 to address the specific requirements of automotive applications. With this extension, DisplayPort is
being standardised to meet the unique needs of the automotive industry that include enhanced safety and security. Adoption of this specification allows OEMs and suppliers to design in compliance with international standards, thereby building highly reliable in-vehicle networks. As a result, the quality and safety of display connectivity in automotive applications are expected to further improve. Display technology will continue to
advance, and the DisplayPort standard provides that scaleability required to meet the needs of next-generation displays, including high resolutions, fast refresh rates and rich colour reproduction. With ongoing developments in
the specification, new challenges are emerging, like bandwidth management, complex multi-monitor configurations and high-speed data transmission. These necessitate more sophisticated and efficient testing methods and validation environments, to bring improvements to user experiences and ensure product quality across various fields. Standardisation organisations and
manufacturers are working together to strengthen certification and compliance testing, and it remains essential to establish flexible verification frameworks that can adapt to future DisplayPort evolutions.
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