Is 10-point touch necessary for a 3.5 inch interface?

Many compact interfaces only require single-touch input, but additional touch points provide flexibility for gesture-based controls and future software development.

Home » Products » Capacitive Touchscreens » 3.5 Inch PCAP Touch Panel with White Cover Lens | G+G

3.5 Inch PCAP Touch Panel with White Cover Lens | G+G

Name: 3.5 Inch PCAP Touch Panel with White Cover Lens | G+G
Brand: FANNAL
Rating: 5.0 (53 reviews)

3.5 Inch Capacitive Touch Panel for Medical and HMI Applications

Model:
FN035A016-V2.0
Brand:
FANNAL
Size(inch):
3.5
Cover OD (mm):
68.7(H) × 95.6(V) × 1.98(D)
Operation Temp(℃):
-20~70
Storage Temp(℃):
-30~80
TP VA (mm):
48.96(H) × 73.44(V)
Structure:
G+G
TP Interface:
IIC

Quantity:
Availability:





Inquiry Add to Basket

Product Description

Drawing & Specifications

Applications

Customizations

FAQ

This 3.5 inch projected capacitive touch panel combines a G+G structure with a white cover lens and compact COF design. Supporting up to 10 touch points through an I2C interface, it is suitable for handheld devices, medical equipment, smart home controls, and embedded HMI applications where appearance and space constraints are both important considerations.

Features

White Cover Lens for Product Design Flexibility

While black cover glass is common in industrial products, white cover lenses are often selected for medical devices, home appliances, and smart control panels where the touch interface needs to align with the overall product design. The choice is usually driven by industrial design requirements rather than touch performance.

Compact Form Factor for Space-Constrained Designs

With an outline size of 68.7 × 95.6 mm, this 3.5 inch touch panel is suitable for portable devices and compact HMIs where PCB space and front-panel dimensions are limited.

G+G Structure for Long-Term Stability

The glass-glass construction provides good dimensional stability and surface durability compared with film-based alternatives. It is commonly used in products expected to operate over extended service lifecycles.

COF Design to Support Slim Integration

The chip-on-flex architecture helps minimize the overall assembly footprint, which can simplify integration into devices where internal space is limited.

10-Point Capacitive Touch Support

The touchscreen supports up to 10 simultaneous touch points. While many embedded interfaces rely primarily on single-touch interaction, additional touch capability provides flexibility for gesture-based controls and future software updates.

Designed for Broad Environmental Conditions

Supporting operation from -20°C to +70°C and storage from -30°C to +80°C, the touch panel can accommodate a range of indoor and semi-industrial applications. Actual system performance should still be evaluated together with the selected display module and enclosure design.

Drawing

Specifications

Item	Specification	Unit / Remark
Touch Panel Size	3.5 (Diagonal)	inch
Structure	CTP (G+G)	Projected Capacitive
Outline Dimension	68.7(H) × 95.6(V) × 1.98(D)	mm
View Area	48.96(H) × 73.44(V)	mm
Cover Glass Thickness	1.10	mm
ITO Glass Thickness	0.70	mm
Surface Hardness	7H	-
Light Transmission / Transparency	≥ 82%	-
Driver IC	CYTMA568-56LQI-44BB	-
Detect Points / No. of Touch	10	-
Input Mode	Finger	-
Connector	COF	-
Interface	I2C (IIC)	-
Power Supply	3.3	V
Operation Temperature	-20 ~ +70	°C
Storage Temperature	-30 ~ +80	°C
Operating Humidity	45% ~ 90%	RH
Storage Humidity	5% ~ 95%	RH (Humidity allowed < 50% RH when temp > 65°C)

Applications

Medical Devices

The white cover lens can complement the appearance of healthcare equipment, including portable diagnostic devices, patient monitoring systems, and laboratory instruments.

Smart Home Control Panels

Suitable for thermostats, environmental controllers, lighting systems, and other home automation interfaces where white front panels are often preferred.

Handheld Instruments

Applicable to portable testing equipment, measurement devices, and field service tools that require compact touch interfaces.

Home Appliances

Can be integrated into premium appliance control panels where product aesthetics are an important part of the overall design.

Compact Embedded HMIs

Useful for small industrial control terminals and embedded systems where installation space is limited.

Automotive Display

Kiosk touch screen

Railway display

E-bike display

Outdoor display

Industrial display

Medical touch screen

Gym-screen

Engineering Plant

Motorcycle display

Vending Machine Display

Embedded display

Customizations

To meet diverse integration needs, we offer extensive customisation for you, including:

● Custom Display Options

LCD Panel

• Size range: 1.77" to 15.6"
• Trusted panel partners: BOE, INNOLUX, JDI, Hannstar, CTC, TCL, and TIANMA.
• Panel types: IPS / TN / LTPS
• Operation Temperature: Industrial (-20 ~ 70°C), Automotive (-30 ~ 85°C)

Interface Design

• Tailored shape, length, and PIN definitions for full compatibility.
• EMI shielding and circuit optimisation.
• Supports multiple conversions: SPI, MCU, RGB, MIPI, LVDS, EDP

Back Light

• Module material options: metal/plastic/metal–plastic integration
• High brightness up to 30,000 cd/m², ideal for outdoor or industrial use.
• Long lifetime up to 50,000 hours.

Driver Board

• Options: RGB / VGA / HDMI / LVDS / DVI / Type-C
• Fully compatible with custom TFT and LCD modules.

• Optimised design for stable image transmission and performance.

● Custom Touchscreen Options

Touch Sensor

• Available Sizes: Up to 65"

• Structure Options: G+G, G+F+F, designed for industrial and automotive applications

• Touch Functions: Supports multi-touch, waterproof, glove touch, passive pen, gesture & palm rejection

• Operating Temperature:

Industrial Grade: –20°C ~ +70°C

Automotive Grade: –30°C ~ +85°

Touch Controller (IC)

• Touch tuning and firmware optimization provided by FANNAL (in-house FW design)
• Trusted IC partners: EETI, ILITEK, GOODiX, FocalTech, Cypress, Microchip(FANNAL's Design Partner)
• High Reliability: Excellent anti-interference and long-term stability
• EMC Design: Full electromagnetic compatibility engineering to meet EMI/RFI and industrial standards

Cover Lens

• Material Options:

Glass: 0.55mm–10.0mm
PMMA: 0.5mm–3.0mm
PC: 0.1mm–1.0mm
• Custom Design: CNC, Hot bending, 3D & 2.5D cover glass, ceramic printing, and PMMA integration
• Surface Treatments:
3A: AG / AR / AF
Anti-Microbial / Anti-Explosion

● Custom Optical Bonding Service

Optical Bonding	Size Range	Notes
OCA	Up to 15.6”	Two fully automated production lines for high-volume manufacturing
LOCA / OCR	Up to 32”	Excellent for high contrast and durability
Silicone	Up to 32”	Ideal for rugged, large-size industrial applications

FAQ

Why choose a white cover lens instead of a black one?

The decision is usually based on product appearance and industrial design requirements. White cover glass is commonly used in medical devices, home appliances, and smart home products where darker front panels may not fit the intended design language.

Does a white cover lens affect touch performance?

No. Touch performance is primarily determined by the sensor design, controller tuning, and overall touch architecture rather than the color of the cover lens.

Is 10-point touch necessary for a 3.5 inch display?

Not always. Many compact HMIs use single-touch input. However, supporting additional touch points allows greater flexibility for gesture control and future software development.

What are the advantages of COF construction?

COF technology helps reduce the overall module footprint and supports thinner product designs, which can be beneficial in space-constrained applications.

Can this touch panel be customized?

Yes. Cover lens color, printing, thickness, surface treatments, connector design, and mechanical dimensions are often customized to match specific product requirements.