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Views: 1 Author: Site Editor Publish Time: 2025-11-28 Origin: Site
When I start a new project that requires a Custom Touch Display, I always begin by understanding the exact demands of my device. Different industries—industrial, medical, automotive, consumer electronics—have unique requirements, and the right touch display must match real-world conditions. Over time, I've learned that choosing the right technology, structure, and supplier determines not only performance but also long-term reliability and product success.
Working with an experienced manufacturer like FANNAL, who specialises in Custom TFT Displays, PCAP Touch Screens, and Optical Bonding, helps me avoid costly redesigns and ensures my final product meets professional standards.
Before selecting any custom touch display, I always start with a clear definition of the device requirements. This step sets the foundation for all later decisions.
Key factors I evaluate:
Screen size & aspect ratio – fits UI layout and mechanical design.
Touch sensitivity – finger, glove, passive stylus, or active pen.
Visual performance – brightness, contrast, clarity, viewing angle.
Mechanical constraints – thickness limits, bezels, mounting, shape.
Special needs – optical bonding, custom cover lens printing, IP sealing, IK impact resistance, EMI performance.
Having these listed early saves time, prevents redesigns, and ensures the final touch module fits the real application.
A touch display that works well in an office may fail outdoors or in a harsh factory. The environment strongly influences the type of touch technology, structure, bonding, and materials I choose.
Industrial applications require a touch display that remains stable in challenging conditions such as dust, oil, vibration, moisture, and electrical noise.
My priorities include:
Robust structures like GG or GFF for mechanical strength.
Wide-temperature components (−20°C to 70°C): touch IC, cover glass, display, AD board.
EMI-resistant ICs with proper shielding near motors or high-power systems.
Waterproof or IP-rated sealing for environments with liquid exposure.
Glove operation tuning or even resistive touch when needed.
These ensure stable operation even in electrically noisy or physically demanding environments.
Medical devices must be reliable, cleanable, and supported for long certification cycles. Once a medical product is approved, component changes become extremely difficult.
What I focus on:
Smooth, sealed cover lens suitable for frequent disinfection.
Anti-bacterial & anti-fingerprint coatings for hygiene.
Industrial-grade components for long lifecycle and consistent availability.
Stable supply chain—medical projects require long-term replacements.
EMC / ESD compliance to protect patients and sensitive equipment.
In medical projects, stability and long-term component availability matter more than cost.
Outdoor devices face sunlight, UV, rain, and temperature swings. Here’s what I prioritise:
High brightness (≥1000 nits) for sunlight readability.
AG/AR coatings to reduce glare and improve clarity.
UV-resistant & anti-UV glass to prevent yellowing.
Optical bonding + rugged cover glass for durability and anti-condensation.
Wide temperature tolerance for hot or freezing climates.
IP sealing against rain, humidity, and dust.
Glove operation tuning for outdoor users.
A good outdoor touch display must remain readable, durable, and responsive under unpredictable weather.
This is my preferred choice for:
Smooth touch experience
Multi-touch capability
High clarity and responsiveness
Ideal for: medical devices, smart home panels, kiosks, EV chargers.
I use this when:
Users wear gloves
The environment is dusty or wet
Cost control is important
Ideal for: industrial controls, agricultural devices, factory HMIs.
Different structures give different performance:
Durable, scratch-resistant. Best for rugged devices.
Good balance of cost and sensitivity. Used in many consumer devices.
More flexible design and stable performance.
Thinner, lighter, and great for modern sleek devices.
For slim devices or high-end displays, I look at these:
In-Cell integrates touch into the display panel
On-Cell places sensors on top of the panel
Feature
In-Cell
On-Cell
Thickness | ⭐ Thinnest | Thinner than GG/GF |
Optical clarity | ⭐ Best | Very good |
Touch sensitivity | ⭐ Highest | High |
Cost | Highest | Mid-range |
Customizability | Low | Medium |
Rugged / Thick Glass support | Weak | Better |
Production yield | Lower | Higher |
I usually choose:
In-Cell → when ultra-slim design and premium visual performance matter more than cost.
On-Cell → when I need a good balance of price, performance, and design freedom.
Traditional PCAP (GG/GF/GFF) → when I need durability, thick cover lenses, custom shapes, or industrial reliability.
Indoor: 250–400 nits
Semi-outdoor: 500–800 nits
Sunlight-readable: 1000–2000+ nits
High brightness is critical for outdoor readability, especially when combined with AG/AR coatings and optical bonding.
I often choose optical bonding for:
Higher clarity
Lower reflection / anti-glare
Better outdoor performance
Anti-condensation
Increased structural strength and durability
Industrial / Outdoor devices: −20°C to 70°C (special cases up to −40°C to 85°C)
Medical devices: 0°C to 50°C
All touch display components (touch IC, AD board, cover glass, backlight) must maintain stable performance across the entire operating temperature range.
Contrast: ensures readability under strong light
Color accuracy: essential for medical devices, imaging equipment, and professional displays
Color gamut: high-end displays may require sRGB or Adobe RGB coverage
Industrial or operational devices require low-latency touch response
Visual applications (kiosks, signage) may prioritize smooth animations and high refresh rates
Industrial, medical, and outdoor displays are often viewed from multiple angles
Wide viewing angle panels (IPS, AHVA, OLED) prevent color shift and dark corners
LED or OLED backlight lifetime impacts maintenance and total cost of ownership
High-brightness screens require robust backlight design and thermal management
Water and dust resistance (IP65, IP67, etc.)
Shock and impact resistance (IK rating)
UV resistance or anti-explosion glass for outdoor applications
Cheaper touch display may save cost at first, but often lead to:
Early failures
Glitches in touch sensitivity
Inconsistent quality between batches
Redesigns or costly maintenance
Working with a supplier like FANNAL, with in-house production, strict QC, and certifications such as ISO 9001 / IATF 16949 / RoHS / REACH, helps me ensure long-term stability.
I always request a detailed cost breakdown to understand the value of each feature.
Choosing the right custom touch display is a process. I define my needs, evaluate the environment, compare technologies, and test samples. Every detail—from brightness to bonding to controller IC—affects the final performance of my device. That's why I prefer working with experienced manufacturers like FANNAL, who provide full customisation, engineering support, and consistent quality from prototype to mass production.
A reliable partner helps me avoid mistakes and turn my ideas into successful products.
I start with my application requirements—environment, sensitivity needs, durability.
Yes. With FANNAL, I can customize size, shape, border printing, coatings, and full assembly.
I always look for ISO 9001, IATF 16949, RoHS, which FANNAL meets. These ensure quality and reliability.
I request samples from FANNAL and evaluate clarity, sensitivity, durability, and environmental performance.
Because they provide full in-house production, optical bonding, PCAP tuning, engineering support, and global technical service—ensuring quality and smooth integration.
