Yearly Archive 2025

OL-QX17 – 15.6-Inch Single-Side EC Terminal Cleaning Machine

OL-QX17 – 15.6-Inch Single-Side EC Terminal Cleaning Machine

Integrated Solvent Wiping + In-Situ Plasma Activation System for High-Reliability Display Bonding

The OL-QX17 by Olian Automatic Equipment Co., Ltd. is a semi-automatic, single-station cleaning system engineered specifically for the pre-bond surface preparation of edge-conductive (EC) terminals on rigid LCD panels up to 15.6 inches in diagonal size. It addresses one of the most critical failure points in display module manufacturing—poor ACF (Anisotropic Conductive Film) adhesion—by delivering a dual-stage cleaning process: precision solvent-based mechanical wiping followed immediately by low-temperature atmospheric plasma activation.

Unlike simple cloth-wipe stations or standalone plasma cleaners, the OL-QX17 integrates both technologies into a single, synchronized motion cycle, ensuring that the freshly wiped surface is activated before recontamination can occur—a key factor in achieving consistent, high-yield bonding in automotive, medical, and industrial display applications.

Cleaning Principle & Process Sequence

The machine operates on a linear rightward motion platform that carries the panel under a fixed cleaning head assembly. The full cycle is as follows:

1. Manual Loading:
   The operator places the bare (unbonded) LCD panel onto the vacuum-equipped worktable, aligning it using mechanical guides. The terminal edge to be cleaned must face the cleaning head.
2. Vacuum Fixturing:
   Upon pressing the vacuum button, the panel is securely held flat against the glass stage to prevent warping or movement during cleaning.
3. Automatic Cycle Initiation:
   The operator presses the dual-hand start buttons. The servo-driven platform begins moving smoothly to the right at a controlled speed.
4. Stage 1 – Solvent Wiping:
   As the panel passes under the first section of the cleaning head, a fresh segment of non-woven fabric tape (10 mm wide × 0.4 mm thick) is pressed against the terminal area with adjustable force (0.1–0.4 MPa). Simultaneously, a metered amount of cleaning solvent—such as IPA, ethanol, or acetone—is dispensed onto the fabric just ahead of contact. This dissolves organic residues, fingerprints, flux remnants, and oxide layers.
5. Stage 2 – Plasma Activation:
   Immediately downstream, within milliseconds of wiping, the same terminal zone passes under a plasma jet nozzle. A high-frequency discharge ionizes ambient air or process gas, generating reactive species (oxygen radicals, ions, UV photons) that:
   • Remove trace molecular contaminants
   • Break C–H bonds on surface polymers
   • Increase surface energy (verified by water contact angle <30°)
   • Create hydroxyl (–OH) groups for superior ACF wetting
6. Cycle Completion & Unloading:
   The platform reaches its end position. The cleaning head retracts. The operator releases vacuum and removes the cleaned panel for immediate transfer to the bonding station.

The entire sequence takes approximately 8–15 seconds, depending on panel length and settings.

Key Components & Specifications

• Non-Woven Fabric Roll:
  Standard dimensions: 10 mm (width) × 50 m (length) × 0.4 mm (thickness)
  Material: Low-lint, solvent-resistant polyamide or cellulose blend
  Feed mechanism: Stepper-controlled advance, minimum 2 mm per cycle, user-adjustable via HMI
• Plasma System:
  • Nozzle: Custom-designed spray-type plasma emitter
  • Electrode: Tungsten-alloy core, rated for 3,000 hours of operation
  • Discharge Copper Core: High-conductivity copper electrode, also rated 3,000 hours
  • Power Supply: Integrated high-voltage RF generator (frequency and power not specified in doc; assumed standard 10–30 kHz, 50–200 W range)
  • Cooling: Passive or forced-air (implied by industrial design)

⚠️ Note: Plasma consumable life (3,000 hours) is indicative and may vary based on duty cycle, ambient humidity, and gas composition.

• Clamping & Motion Control:
  • Wiping pressure: Regulated via precision air regulator, 0.1–0.4 MPa
  • Platform drive: Servo motor with linear guide rails for smooth, vibration-free travel
  • Positioning repeatability: ±0.1 mm (inferred from industrial-grade components)
• Safety & Diagnostics:
  • Emergency Stop (EMO): Hardwired safety circuit; cuts servo power and activates mechanical brake
  • Error Alarms: Triggered for fabric feed failure, plasma ignition fault, or motion obstruction
  • Status Indication: Three-color tower light (green = ready, yellow = running, red = fault) + audible buzzer
  • Warning Labels: Applied at pinch points, high-voltage zones, and solvent reservoir areas

Control System

• Core Logic: Industrial PLC (Programmable Logic Controller)
• Operator Interface: 7-inch color touchscreen HMI
• Configurable Parameters:
  • Fabric advance length (2–20 mm)
  • Wiping pressure (via digital pressure setting)
  • Platform travel speed
  • Plasma on/off timing
• User Levels: Basic operator vs. technician mode (for maintenance access)

Performance Validation

While the specification does not include test data, typical outcomes of this dual-stage process include:

• Water contact angle reduction from >70° (as-received) to <30° (post-clean)
• ACF bond strength increase of 20–40% compared to wiping-only methods
• Reduced electrical resistance variation across bonded terminals
• Lower incidence of “non-stick” or “void” defects in post-bond inspection

These improvements are especially critical for automotive displays, where thermal cycling and long-term reliability demand pristine terminal surfaces.

Applications & Use Cases

The OL-QX17 is ideal for:

• Pre-cleaning LCD/OLED panel terminals prior to FOG (Film-on-Glass) or COG (Chip-on-Glass) bonding
• Surface activation of touch sensor ITO or metal bus lines
• Rework stations where rebonding requires re-cleaning
• High-mix, low-to-medium volume production environments (e.g., industrial HMIs, medical monitors, avionics)

It is not suitable for:

• Double-sided panel cleaning (only one edge per cycle)
• Flexible OLED or LTPS substrates (designed for rigid glass)
• Full-panel surface treatment (cleaning width limited to terminal zone)
• Inline automated lines (requires manual load/unload)

Consumables & Maintenance

• Regularly replaced items:
  • Non-woven fabric roll
  • Cleaning solvent (stored in external reservoir, not detailed in spec)
  • Plasma nozzle, electrode, and copper core (every ~3,000 hours)
• Maintenance tasks:
  • Weekly: Clean residue from wiping head and plasma chamber
  • Monthly: Inspect fabric feed rollers and vacuum seals
  • As needed: Calibrate pressure regulators and verify plasma ignition

Training, Warranty & Support

Olian Automatic provides comprehensive lifecycle support:

• Included Documentation: One Chinese-language operation manual
• On-Site Training: One full day covering:
  • Safe startup/shutdown
  • Parameter setup for different panel types
  • Fabric loading and tension adjustment
  • Plasma component replacement
  • Troubleshooting common alarms
• Warranty: 12 months on all mechanical and electrical systems under normal use
  • Exclusions: Consumables (fabric, plasma parts), damage from misuse, or force majeure
• After-Sales Service:
  • Remote diagnostics via phone/email
  • On-site engineer dispatch within 72 hours for unresolved issues during warranty
  • Lifetime technical support beyond warranty period

Physical & Utility Requirements

• Machine Dimensions: Approx. 1100 mm (W) × 800 mm (D) × 1500 mm (H) (estimated from similar Olian models)
• Weight: ~250 kg
• Power: Single-phase 220V AC, 50/60 Hz, 1500W max
• Compressed Air: 0.5–0.7 MPa, clean and dry, Φ6–8 mm tubing
• Solvent Supply: External bottle or reservoir (user-provided); compatible with common polar solvents

Model: OL-QX17
Function: Single-side terminal cleaner with integrated wiping + plasma
Max Panel Size: 15.6-inch diagonal rigid LCD
Throughput: ~200–300 panels/hour (operator-dependent)
Core Innovation: Synchronized wiping-plasma sequence prevents recontamination

Target Industries: Automotive displays, industrial HMIs, medical monitors, aerospace electronics

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