4.3 Inch Optical Bonded Touch Display | 630 nits, OCA

Drawing

Specifications

Applications

• Industrial control equipment — compact HMI and machine interfaces

• Embedded systems — integrated display and touch interfaces in custom equipment

• Vehicle and mobility equipment — compact control and information displays

• Instrumentation — measurement and monitoring interfaces

• Control terminals — touch-enabled interfaces where optical bonding is preferred

• Equipment with front-panel visibility requirements — applications where reducing the display-to-cover air gap can be beneficial

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

FAQ

1. What is the main advantage of the optical bonding on this 4.3-inch display?

The OCA optical bonding process removes the conventional air gap between the display and touch layers. This can reduce internal reflections and improve visual integration, particularly in environments where display readability is affected by reflected ambient light.

2. How does this model differ from an air-bonded 4.3-inch touch display?

The main difference is the bonding construction. This model uses OCA optical bonding, while an air-bonded model uses a mechanical adhesive layer with an air gap. Optical bonding can provide better optical performance, while air bonding may offer a simpler and more cost-sensitive integration approach.

3. Is the 630 cd/m² luminance suitable for outdoor applications?

The 630 cd/m² typical luminance provides higher brightness than many standard indoor modules, and the OCA bonding can help reduce reflections. However, 630 cd/m² alone does not guarantee direct-sunlight readability. For strong outdoor sunlight, FANNAL can evaluate higher-brightness display options and additional optical treatments.

4. What display and touch interfaces does this module use?

The TFT display uses an RGB 24bit interface, while the capacitive touch function uses IIC. The host system should provide compatible interfaces and power supplies for both functions.

5. What does the G+G touch structure mean?

G+G refers to a glass cover lens combined with a glass touch sensor. This construction provides a rigid touch surface, and this module additionally uses chemically strengthened cover glass with ≥7H surface hardness.

6. What temperature range does the display support?

The specified operating temperature is -20°C to +70°C, with a storage temperature range of -30°C to +80°C. System-level thermal conditions should also be considered during equipment integration.