With the explosion of high-end display markets such as foldable, automotive, and VR displays, display technology is moving towards flexibility, foldability, and ultra-narrow bezels. Traditional methods like OCA tape lamination, dispensing-type OCR coating lamination, and slit coating OCR lamination are becoming increasingly inadequate to meet the demands of more refined product designs and cost control.
Inkjet Printing (IJP) technology for Optical Clear Resin (OCR) emerges as a revolutionary solution for next-generation optical bonding. By digitally depositing micro-droplets with precision, this method "prints" liquid optical adhesive directly onto the substrate surface. This technology completely overturns traditional contact-based coating logic, enabling free-form patterning, precise control over a wide range of thicknesses, streamlined production processes, and reduced costs, among other advantages.
The IJP OCR lamination technology boasts unique specialized advantages in display applications.
As a pioneer in the field of display panel module equipment, Liande has deeply invested in the development of IJP inkjet printing OCR lamination technology, bringing new solutions to the industry.
Leveraging its triple advantages of high precision, high flexibility, and low cost, Liande's IJP inkjet printing OCR technology is set to become the mainstream solution for full lamination processes. We continuously optimize technologies such as multi-nozzle array, AI vision compensation, and online defect detection, aiming to create the next generation of intelligent lamination platforms for our customers.
The equipment process can be flexibly customized throughout the entire workflow, meeting the needs of cleaning, protective film attachment, IJP printing, thickness monitoring, inert gas curing, lamination, and other processes, all within a fully closed-loop automation system.
IJP Inkjet Printing Technology: Four Major Process Features
I. Precision Jetting Control Parameters
Viscosity Window: 10~ cP (adjustable by heating to 35-60℃)
Droplet Precision: Precise control at pL level, with a repeatability precision of ±1%
Jetting Frequency: Accurately controlled by algorithm, jetting frequency perfectly follows the platform movement, adapting to different production capacity needs
Alignment System: CCD vision + motion control, alignment accuracy of ±10μm
II. Process Compatibility
Curing Method: Supports UV pre-curing + efficient nitrogen inert atmosphere
Material System: Compatible with different Optical Clear Resin (OCR) systems
Substrate Types: Covers all scenarios including ultra-thin glass (UTG), flexible OLED, LCD, cover glass (CG) modules, etc.
Size Range: Seamless adaptation for small to medium sizes
III. Process Capability Assurance
Surface Flatness: CV% < 5%
Single Layer Printing Thickness Control: Precise control from 15 to 150 μm
Local Oxygen Barrier Control
Edge Straightness: ±50 μm
Controllable Adhesive Layer Edge Morphology
Multi-nozzle Stitching Technology to Eliminate Seams, achieving a perfect fit
IV. Intelligent Production
MES Integration: Real-time upload of spraying parameters, coating thickness data, curing energy, and oxygen concentration
Closed-loop Control: Online coating thickness detection → feedback adjustment of spraying volume, closed-loop control
Digital Twin: Process parameters stored in the cloud, historical recipes can be recalled with one click
As a long-term player in the field of display panel module equipment, we have always stood at the forefront of technological innovation. The IJP (Inkjet Printing) process for Optical Clear Resin (OCR) lamination is not only an iteration of our process route but also a concrete manifestation of our commitment to customer value—delivering exceptional optical quality and reliable performance to every display through digital precision manufacturing.
From ultra-small sizes to medium-sized displays, from foldable flexible screens to high-end medical monitors, our IJP equipment platform has achieved comprehensive coverage across size segments, full technical routes, and all application scenarios. Behind this success lies our independent control over core technologies such as precision jetting control algorithms, multi-axis联动 visual alignment, and online closed-loop monitoring of coating thickness. It also reflects our deep accumulation in material science, process mechanisms, and mass production know-how.
Choosing us means choosing to walk alongside industry leaders. In the future, we will continue to deepen cutting-edge technologies such as AI vision compensation, multi-nozzle array coordination, and digital twin process platforms, aiming to become the most trusted intelligent manufacturing partner in the display lamination sector.
Making every drop of adhesive precisely contribute to perfect displays—this is our promise and our commitment.
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