HUD Testing Solutions

Overview

HUD (Head-Up Display) technology plays a crucial role in intelligent driving by projecting key information directly within the driver’s line of sight, enhancing both driving safety and convenience. However, there is often a gap between the theoretical performance and practical application of HUD technology, necess rigorous testing to validate its capabilities. Yanding Technology, specializing in the field of smart cockpit vision technology, has introduced an industry-leading HUD image quality testing system, offering comprehensive coverage of optical performance verification. In the current era of rapid development in smart vehicles, HUD technology is vital for improving the driving experience and safety, and Yanding’s testing system has been developed to meet this need. The system is equipped with a full suite of advanced testing devices, integrated with automated control software and algorithmic software, making it both powerful and efficient. It can accurately measure dozens of parameters required by national standards, such as virtual image distance, downward viewing angle, luminance, contrast, and color gamut coverage, ensuring the accuracy and authority of test results. Through precise control of these key indicators, the system enables a comprehensive evaluation of HUD image quality performance. Currently, Yanding Technology has already provided standardized testing solutions for multiple automotive OEMs and inspection institutions using this system. It has played a key role in the commercialization of innovative technologies such as AR-HUD and WHUD, effectively accelerating the transition of these cutting-edge technologies from research and development to practical application. Whether helping OEMs optimize product design or assisting inspection institutions in rigorously ensuring product quality, Yanding Technology’s HUD image quality testing system demonstrates outstanding performance and value. It has become a significant force in advancing smart cockpit vision technology and ensuring the healthy development of the industry.

Details

Why Test HUD?

The HUD (Head‑Up Display) system is a driver‑centered human‑machine interaction technology. By projecting critical driving information such as speed and navigation directly onto the area in front of the windshield, it allows the driver to access information without taking their eyes off the road, thereby significantly improving driving safety and convenience.

Main Types of HUD in the Market:

C‑HUD (Combiner HUD): Forms images via a separate transparent combiner.

W‑HUD (Windshield HUD): Projects images directly onto the windshield.

AR‑HUD (Augmented Reality HUD): Integrates virtual information with the real environment to deliver an immersive display experience.

Core Challenges in HUD Display Quality:

Unreasonable Virtual‑Image Position and Focal Length: Can cause visual fatigue and reduce recognition efficiency.

Double Images Caused by Windshield Structure: Affects image clarity and legibility.

Inadequate Brightness and Color Recognition: Changing driving environments (strong light, backlight, nighttime) can severely impact display performance.

Virtual‑Image Distortion and Scale Deviation: Warping or deformation affects the authenticity of HUD content and the user experience.

Yanding Technology HUD Display Testing Total Solution

Leveraging rich experience in image quality analysis and a deep understanding of automotive standards, Yanding Technology has built a highly automated, scalable HUD virtual‑image optical‑characteristics detection platform. It comprehensively supports R&D verification, mass‑production quality control, and image optimization for HUD products.

Core Advantages and Highlights:

1. Highly Reproduces Real-World Vehicle Usage Scenarios

Equipped with a 25°–70° automatic rotating windshield stand that realistically simulates different vehicle windshield inclination angles.

Supports quick replacement of windshields from multiple vehicle models with strong compatibility

2. Three-Axis Motion + Multi-Angle Adjustment System

The optical engine module supports XYZ three-axis linear movement.

Enables fine-angle adjustment of ±5° in pitch, yaw, and roll to meet the needs of simulating different viewing angles and assembly tolerances.

3. Automated High-Precision Measurement Platform

Utilizes sub-millimeter high-precision displacement modules (±0.01 mm) and angle adjustment systems (accuracy better than 0.1°).

Paired with imaging luminance meters, colorimeters, and CCD modules to achieve precise measurement of parameters such as FOV, VID (virtual image distance), and eyebox.

4. Comprehensive Coverage of Key Testing Metrics

Equipment	Model	Function
Yanding HUD Testing Automated Bench	-	Fixture platform for installing HUD optical engine, windshield, and photometer
Yanding HUD Virtual Image Board	-	Verification of virtual image distance, assisting in positioning the optical engine
Yanding Imaging Colorimeter and Photometer	-	Capturing virtual images and acquiring pictures
Yanding Analysis Software	RIQA V2	Supports data analysis of HUD-related standard test items (field of view, left viewing angle, downward viewing angle, virtual image distance, ghosting, distortion, binocular parallax, rotation, MTF, luminance, luminance contrast, luminance uniformity, color gamut coverage)

5. Professional Software Analysis System RIQA with the Following Functions:

Automated capture and test task orchestration

Multi-project parallel testing and batch data processing

Visual results analysis and comparison

Automatic test report generation

Supports full product lifecycle traceability and data export

6. Modular Design for Flexible Upgrades

Both hardware and software adopt a modular architecture, supporting future expansion such as high-resolution probes, AR-HUD feature modules, and standardized adaptation fixtures.

This meets diverse customer needs for R&D, mass production quality control, and customization.

7.Standards and Adaptability

Fully supports international standards for automotive display optics, including SAE J1757‑1, SAE J1757‑2, and ISO 15008.

Adaptable to various HUD assembly methods and vehicle-level testing requirements, helping customers achieve a closed-loop process from R&D verification to mass production testing and control.

If you are interested in our automotive HUD optical performance testing solution or have any questions, please feel free to contact our sales team via email at: sales@rdbuy.com. We are committed to providing you with detailed consultation and services.