English
The widespread adoption of full-screen and curved screens in smartphones has made LOCA (Liquid Optical Transparent Adhesive) full lamination technology the industry mainstream. However, in actual production, the traditional UV curing process faces three major challenges:
- Temperature Damage: OLED panels are extremely sensitive to temperature; the high temperatures of traditional mercury lamps can easily cause screen deformation or rainbow-like patterns.
- Stress Warping: Full-screen bezels are extremely narrow; uneven lighting can lead to inconsistent adhesive shrinkage, causing screen warping or touch malfunction.
- Optical Yellowing: Inaccurate UV wavelengths can easily cause the adhesive to age and yellow.
To address the aforementioned pain points, our company has customized an intelligent, high-uniformity UV-LED line light source curing system for a major domestic mobile phone screen module manufacturer:
- Narrow-band cold light source, zero thermal damage: Locked to a precise wavelength of 365nm/395nm, eliminating infrared heat radiation, and keeping the curing chamber temperature below 35°C year-round, completely preventing OLED panel heat deformation.
- Microlens optical design, uniformity >95%: Our independently developed collimating optical system ensures synchronous curing at the narrow bezel edges and center, reducing screen warping caused by stress to 0%.
- Multi-segment intelligent dimming, second-level curing: Supports PLC linkage for "pre-curing (positioning) + main curing (deep hardening)," with the curing process taking only 2-4 seconds, significantly increasing the production line's UPH (upper capacity per hour).
Traditional mercury lamp solutions require 30 to 60 seconds, while upgrading to our UV-LED solution reduces this to 2 to 4 seconds, increasing overall production efficiency by more than 10 times.
Traditional solutions have a defect rate of approximately 2.5%, while our UV-LED solution significantly reduces the defect rate to below 0.1%, successfully eliminating deformation and yellowing caused by internal stress.
Traditional solutions are extremely energy-intensive and require continuous lamp operation for heat dissipation; our UV-LED solution features low energy consumption and immediate on/off operation, helping companies save approximately 80% on overall electricity costs.
Traditional mercury lamps have a lifespan of only 800 to 1000 hours, while our UV-LED light source has a lifespan exceeding 20,000 hours, significantly reducing subsequent maintenance and replacement costs.
From full-screen displays to foldable screens, Shenzhen Super-curing Opto-Electronic CO., Ltd. is committed to empowering high-end electronic manufacturing with greener, more efficient, and more precise photocuring technology.