The Hidden Risks of DisplayPort Certification: Why Delayed Testing Drives Up Costs
Many companies submit their products for DisplayPort certification only in the late DVT stage, or even right before mass production.
In practice, numerous design issues are often discovered only at this point, causing project delays, increased costs, and sometimes extensive rework.
With DisplayPort technology rapidly evolving and certification requirements continually being updated, hardware development teams must identify future certification risks and potential challenges early in the design phase—this is crucial to achieving success.
Allion’s Professional Support: Moving Certification the Final Step – Not the Last
As an officially authorized DisplayPort test laboratory, Allion has helped clients obtain certification smoothly for many years, significantly shortening development schedules and accelerating product launch.
We now introduce our new Compliance in Validation (CiV) consulting service, which supports clients as early as the EVT stage—or even during product planning—to predict certification risks, adjust design direction, avoid rework, reduce losses, and speed up time-to-market.
A Real-World Case: How Using a Non-Certified Chip Delayed Time-to-Market
A well-known manufacturer used a PD controller IC that lacked USB certification during the development of a DisplayPort Alt Mode product. As a result:
- Testing items and costs doubled
- The product still had to be redesigned with a USB-Certified PD chip
- The product launch was severely delayed
Start Early to Stay Ahead of Market Risks!
With Allion’s early-stage compliance consulting service, you can incorporate upcoming mandatory certification test items at the very beginning of product design—avoiding repeated testing and reducing development risks.
The Compliance in Validation (CiV) consulting service covers all product development stages from EVT to DVT, helping clients fully understand every requirement needed for DisplayPort certification. This enables early preparation, fewer design revisions, and minimized risks.
The Compliance in Validation (CiV) Consulting Service Covers three Key Stages:
1. RFQ & Design-in Stage: Strategic Guidance to Avoid Misguided Investment
Objective:
Support clients from the early development phase by clarifying testing requirements and functional necessities, preventing specification misinterpretations and unnecessary resource consumption from the start.
Key areas of support:
- Determining whether product features must comply with specific certification test versions
- Interpreting DisplayPort Association certification requirements
- Assessing development costs associated with implementing DisplayPort technology
- Avoiding unnecessary design resource expenditure
Real case example:
A manufacturer mistakenly believed that supporting DisplayPort 1.4 required implementing all features such as HDR, HBR3, AdaptiveSync, DSC, and FEC.
Allion helped clarify which features were optional, successfully saving significant time and cost.
2. EVT Stage: Early Validation of Critical Items to Reduce Development Risks
Objective:
Strengthen hardware quality before finalization and prevent major design changes during the DVT stage.
Key areas of support:
- Identifying high-risk electrical test items for early validation
- Detecting and resolving potential hardware design issues
- Verifying the accuracy and suitability of testing tools
Practical experience:
Allion’s data shows that around 80% of products are first submitted for testing during DVT, often resulting in rework and delays due to hardware non-compliance.
By validating key items during EVT, teams can significantly reduce development risks and ensure a smoother downstream process.
3. DVT Stage: Comprehensive Validation of Non-Electrical Items to Accelerate Certification
Objective:
Allion helps clients fully verify firmware/driver quality, identify issues early, and shorten the certification process.
Key areas of support:
- Comprehensive validation of non-electrical tests, including Protocol and Interoperability testing
- Assistance in identifying and correcting potential firmware/driver design issues
- Accelerating the path to DisplayPort certification
Practical experience:
Clients who participated in the CiV service successfully resolved issues discovered during EVT, enabling smooth progress in DVT.
No hardware redesign was required due to test failures, significantly shortening certification time and reducing development costs.
Partner with Allion to Build a Solid Foundation Early in Product Design
As an officially authorized DisplayPort compliance test laboratory, Allion offers:
🔸Full DisplayPort test coverage
🔸Deep involvement in specification development and access to the latest SCRs (Specification Change Requests)
🔸Comprehensive test equipment and a highly experienced engineering team
We support four key areas:
- Establishing a clear DisplayPort certification preparation workflow and technical knowledge base
- Predicting required features and potential design risks
- Reducing design modifications and shortening development timelines
- Preparing ahead for upcoming mandatory test requirements
Ensure your DisplayPort product captures the key to success—right from the design phase!
