High-Precision Assembly for Automotive Displays

Precision Gluing for Curved Automotive Displays and Final Bonding of Automotive Display Units

To meet the challenges of bonding curved OLED displays with ornamental frames, the HAHN Automation Group developed a fully automated, cleanroom-ready system. Real-time gap measurement, vacuum-based alignment, and intelligent adhesive dosing ensure flawless assembly within seconds—combining speed, flexibility, and precision in a compact footprint.

In the final step of display production, HAHN Automation Group ensures precision bonding of the frame assembly and support plate. Intelligent alignment, vacuum-based clamping, and adaptive 2K gluing deliver a cleanroom-ready solution—scalable, accurate, and futureproof.

#Automotive #Display #Assembly #Precision

 

  • Full-automatic Assembly Line
  • Gap & Flash Check
  • Precise Joining & Dosing Processes
  • 2K Gluing
  • Final Display Assembly

 

Challenge1: Gluing Line

The customer required a fully automated solution for assembling curved OLED automotive displays, specifically focusing on the ornamental frame and glass bonding. The process had to ensure precise positioning of the display and frame, despite their complex 3D geometry. 

Gap and flash checks, plasma cleaning, and 2K gluing had to be executed with utmost accuracy—within a cycle time of 33 seconds and under ISO 7 cleanroom standards. A key challenge: measurement values from previous stations had to be dynamically integrated into the adhesive dosing and joining steps, requiring a tightly connected, intelligent process.

 

Developing a Solution

HAHN Automation Group developed a fully automated line with manual loading of the OLED and frame, combining several advanced technologies. A custom-developed WPC with vacuum clamping ensured precise holding and alignment of the curved display. A six-axis robot applied 2K adhesive based on real-time gap measurements, while upper tooling and vacuum systems stabilized the parts during gap and flash inspection.

Plasma cleaning and item-specific cleaning were fully integrated. All processes were coordinated digitally, using measurement data from earlier stations to drive precise joining and dosing.

 

Challenge 2: Bonding Line

After the initial frame assembly, the next step in display production required precise bonding of the display unit to the support plate. The challenge was to align and join multiple curved components with high positional accuracy, despite 3D geometries and strict ISO 7 cleanroom requirements. 

Plasma cleaning, gap inspection, and 2K adhesive dosing had to be integrated seamlessly—within a 33-second cycle time and with minimal manual intervention.

 

Developing a Solution

HAHN Automation Group implemented a fully automated line with manual loading of the support plate. A customized WPC concept with vacuum clamping was used to position and stabilize both the frame assembly and support plate. Upper tooling ensured precise part holding, while a six-axis robot executed dynamic 2K adhesive dosing, guided by real-time gap inspection data.

Integrated plasma and item-specific cleaning ensured surface quality, and the entire joining process was based on exact alignment and measurement values. The result is a cleanroom-compatible, high-precision bonding system that guarantees stable and repeatable joining of complex display units. 

 

Process Overview

  1. Vacuum Clamping System – enables placing the display into a WPC with curved contour, designed by HAHN
  2. Upper Tool Handling – intelligent concept for the entire line
  3. Gap & Flash Check – thanks to the upper tools and vacuum clamping system, an integrated gap & flash check can be carried out
  4. Plasma Cleaning – for display and frame with the subsequent cleaning of the items
  5. 2K Adhesive Dosing – using a six-axis robot including gap check calculation for the adhesive

Cycle time: 33 seconds per part.
Clean Room Classification: ISO 7

Results

Results

HAHN Automation Group delivered a fully automated, ISO 7-compatible solution program for bonding curved OLED displays—covering both frame and final assembly. With vacuum clamping, real-time gap checks, and adaptive 2K gluing, the system ensures precise, repeatable results in just 33 seconds. Thanks to its modular design and in-house expertise, it offers high flexibility, process reliability, and cleanroom efficiency.