Optical Bonding FAQ


Frequently Asked Questions


1. What is Optical Bonding?

Optical Bonding is an enhancement technology offered by Ocular to securely attach cover lenses to displays and touch panels. The process utilizes DuPont™ Vertak® bonding adhesive which gives additional strength, clarity and durability to a product. This proprietary manufacturing process, developed by DuPont™ and licensed by Ocular, is utilized to achieve a robust, long-life display. Please click HERE for additional information and test results.


2. What are the benefits to Optical Bonding?

Optical Bonding can increase the sunlight readability of a panel up to 400%. Additional benefits include increased impact and scratch resistance up to 300% and increased durability to shock and vibration. The enhancement of Optical Bonding allows for thinner and lighter display designs as well as an airtight enclosure that will prevent condensation and fogging and keep out moisture, dirt and chemicals.


3. How does Optically Bonding a cover lens improve the product compared to traditional adhesive application methods?

DuPont™ Vertak® Optical Bonding eliminates the airgap between the glass surface and display. When comparing an optically bonded cover lens with a traditional cover lens, the benefits become very clear. Please see the below diagrams.

Vertak construction

Vertak® Bonded Cover Lenses

Traditional construction

Traditional Cover Lenses


4. Does Optical Bonding increase the lead time of a product?

Ocular has incorporated the Optical Bonding equipment to our manufacturing facilities in order to have minimal impact on the lead time of a product. By incorporating this advanced technology at our facility, Ocular is able to utilize this enhancement for our customers in a timely manner. Ocular employees have undergone extensive training and will have continuous training programs on the Optical Bonding equipment and process.


5. What tests have been completed for Optical Bonding?

DuPont Display Enhancements, Inc. conducted multiple sunlight readability, scratch resistance and impact tests to determine the strength of their bonding solution. For a diagram showing results from the impact test, click HERE