A custom PCAP touch film for an industrial HMI should be specified around the complete display assembly—not only the diagonal screensize. Confirming mechanical, electrical, and operating requirements early can reduce redesign and sample delays.
7 parameters to confirm
- Display size and active area. Provide the display model or drawing, diagonal size, active display area, and required touch area.
- Touch points and user interaction. Specify single-touch or multi-touch requirements, glove use if relevant, and expected gestures.
- Cover glass and stack-up. Confirm glass thickness, material, surface treatment, air gap or bonding approach, and optical requirements.Validate compatibility for the actual assembly.
- Controller and interface. Identify the controller, operating system, host interface, driver requirements, and available integration space.
- Operating environment. State temperature and humidity ranges, exposure to water or dust, cleaning agents, vibration, and serviceconditions.
- Mechanical constraints. Share enclosure drawings, mounting method, edge margins, cable exit direction, connector location, and routingrestrictions.
- Validation and project plan. Define sample quantity, test criteria, target schedule, expected production quantity, and customer-specificcompliance requirements.
What to send for a faster feasibility review
• Display datasheet or mechanical drawing
• Cover-glass drawing and thickness
• Touch points, controller, and interface details
•Operating temperature and environmental requirements
• Prototype quantity and estimated mass-production volume
Important: Do not confirm performance, environmental ratings, or certification before the complete touch assembly is evaluated.Requirements may depend on the film, cover glass, controller, bonding, enclosure, and final system.
Discuss your industrial HMI project
Send your display size, drawings, touch requirements, operating conditions, and project timeline. Gerteise can review the information andconfirm which specifications need technical validation before quotation.