-
Product Center
-
-
Contact Us
Tel
Tel
+8618142863185
Follow us
Official Accounts
Official Accounts
- Top
Application Process for Liquid Optical Adhesive
Release time:
2026-01-20 01:52
Liquid optical adhesives play a crucial role in the assembly of display and optical components by filling interfacial gaps, enhancing optical performance, and improving structural reliability, thereby meeting the demanding requirements of various end products for display quality and durability. The following section provides an overview of common processing methods, illustrated through typical application scenarios.
I. Full-Lamination Process
Full-lamination is currently the mainstream application of liquid optical adhesives in display assembly, particularly in consumer electronics such as smartphones and tablets. This process typically involves the following steps:
1. Adhesive Coating: A uniform layer of liquid optical adhesive is applied to the cover glass or the inner surface of the touch screen using methods such as slot-die coating, spray application, or screen printing.
2. Alignment and Bonding: The display panel and cover glass are precisely aligned in a cleanroom environment, then bonded under controlled pressure using a vacuum laminator to remove air bubbles from the adhesive layer, achieving gap-free adhesion.
3. Curing: Perform UV curing or thermal curing depending on the type of adhesive to form a transparent and robust adhesive layer.
Full-lamination technology can significantly reduce interfacial reflection, enhance light transmittance and contrast ratio, strengthen the overall structural integrity of the display, and provide a certain degree of dust- and water-resistance.
II. Local Repair Applications
Local defects such as scratches, microcracks, or edge/border bubbles on the display surface can be repaired by dispensing or injecting adhesive. The procedure involves first cleaning the damaged area, then precisely applying an appropriate amount of adhesive to fill the defect and allow it to cure, thereby restoring optical integrity and certain mechanical properties. This method is cost-effective and well suited for after-sales repairs as well as defect correction during manufacturing processes.
III. Flexible Display Lamination
With the advancement of foldable and curved-display technologies, liquid optical adhesives are playing an increasingly critical role in the lamination of flexible screens. Such applications demand adhesives with excellent flexibility, outstanding bend-fatigue resistance, and a low modulus. During lamination, it is essential to account for the deformation characteristics of the flexible substrate and employ low-stress coating and bonding processes to ensure that the adhesive layer remains intact—without cracking, delamination, or degradation of optical performance—through repeated folding cycles.
IV. Integration with In-Vehicle and Specialized Environments
In-vehicle displays, industrial touch panels, and similar devices are often subjected to vibration, alternating high and low temperatures, and high-humidity environments, thereby placing even higher demands on the reliability of liquid optical adhesives. Such applications typically employ adhesive systems with a broad temperature tolerance range and outstanding aging resistance, while also implementing stringent controls during the lamination process—such as bubble management, uniformity of the adhesive layer, and rigorous bonding-strength testing—to ensure long-term stable performance under harsh operating conditions.
V. Trends in Process Development
Looking ahead, as display technologies evolve toward ultra-thinness, flexibility, high refresh rates, and enhanced environmental robustness, the application processes for liquid optical adhesives will continue to be refined. Advances such as higher-precision coating technologies, online real-time monitoring and feedback systems, multi-material-compatible lamination solutions, and green, low-energy curing processes will all help liquid optical adhesives play a pivotal role in an expanding range of high-end applications.
Disclaimer: The above content has been compiled from public sources for reference only; if any infringement occurs, please contact us and we will address it promptly.
| Bossin Recommended Products – Liquid Optical Adhesive | ||
| Product Model/English Abbreviation | Product Name/Product Type | Product Features |
| B-2111D | Aliphatic polyurethane acrylate | Excellent adhesion, high elongation, and resistance to thermal shock at both high and low temperatures. |
| B-2116 | Aliphatic polyurethane acrylate | Excellent adhesion, good flexibility, acid and alkali resistance, and excellent tensile strength. |
| B-215 | Aliphatic polyurethane acrylate | Good adhesion, good flexibility, water resistance, and acid resistance. |
| B-2621 | Aliphatic polyurethane acrylate | Excellent adhesion, excellent resistance to strong acids and strong bases, and low curing shrinkage. |
| Single Product Recommendation | ||
| Product Model/English Abbreviation | Product Name/Product Type | Product Features |
| BM1105 (OPPEA) | O-Phenylphenoxyethyl acrylate | Low shrinkage, strong adhesion, low volatility, high refractive index |
| BM1210 (PHEA) | 2-Phenoxyethyl acrylate | Low shrinkage, heat resistance, excellent adhesion, high refractive index |
| BM1211 (HPMA) | Hydroxypropyl methacrylate | HEMA-free, high strength, low irritation, high adhesion |
| BM2101M (10EO-BPADMA) | Ethoxylated Bisphenol A Dimethacrylate | Low irritancy, flexibility, high strength, and heat resistance |
| BM2224 (EO-HDDA) | Ethoxylated 1,6-hexanediol diacrylate | Excellent adhesion to plastics, good dilutability, and low volatility. |
Share to:
Related News
Fax: +86 20-3437 9190
Address: 8-9 / F,Building B,Pazhou Science and Technology Park, Xingang East Road, Haizhu District, Guangzhou City, Guangdong Province
Follow us
Copyright © Guangdong Bossin Novel Materials Technology Co., Ltd. All rights reserved.
