1.78 Inch Square AMOLED Display SPI Touch Screen for Smart Watches

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Key Specs

Model P/N

HS0178VVO3A-V1

Size

1.78″

Resolution

368×448

Brightness

250 (Typ.)(cd/m²)

Viewing Angle

All-round / wide viewing angle

Connector Type

SPI Interface

Operating Temp

-20 ~
70 °C

Overall(mm)

45.2(W)×
34.4(H)×
1.5(D)
Upgrade Options (OEM/ODM)

huisoar

HS0178VVO3A-V1

General Features

Brand

huisoar

Panel Size (inch)

1.78"

Model P/N

HS0178VVO3A-V1

Resolution

368×448

Brightness (nits)

250 cd/m² (Typ.)

Viewing Angle

All-round / wide viewing angle

Contrast Ratio

Response Time

0.3

Overall (mm)

45.2(W)×
34.4(H) ×
1.5(D) mm

Active Area (mm)

34.9 × 28.7 mm

Refresh Rate

60Hz

Display Colors

Full color AMOLED

Panel Type

oled, amoled

Connector Type

SPI Interface

Operating Temp

-20 ~
70 °C

Touchscreen Type

Capacitive Touch

Storage Temp

-30~80

Work Mode

Transflective / positive

Designed For

Smart Wearable, Watch, Consumer Electronics, IoT Devices

Compact AMOLED touchscreen module with SPI interface for smart watches and wearable device integration

Wearable electronics continue to demand thinner, brighter, and more power-efficient display solutions capable of delivering premium visual performance within compact industrial designs. The 1.78 Inch Square AMOLED Display SPI Touch Screen combines high-resolution AMOLED technology, SPI interface integration, and capacitive touch functionality in a compact module optimized for smart watches and wearable applications.

Designed for modern wearable product development, this AMOLED touch display provides a balanced combination of ultra-thin mechanical structure, vibrant image quality, and customizable interface architecture for OEM and embedded device manufacturers.

1.78 Inch AMOLED Display for Smart Wearable Devices

The module features a 368 × 448 resolution AMOLED panel within a 1.78-inch display size, making it suitable for:

  • smart watches
  • wearable healthcare devices
  • IoT wearable terminals
  • fitness trackers
  • compact portable electronics

Compared with conventional LCD technologies, AMOLED displays provide:

  • deeper black levels
  • improved color saturation
  • lower power consumption for dark UI systems
  • wider viewing angles
  • enhanced visual contrast

These characteristics are particularly important in wearable devices where display readability and battery efficiency directly affect user experience.

AMOLED Technology with LTPS Structure

The display uses LTPS AMOLED architecture, supporting high pixel density and efficient display driving performance.

The AMOLED structure helps wearable device developers achieve:

  • slim industrial design
  • improved outdoor visibility
  • premium UI rendering
  • lower display power requirements
  • smoother visual performance

The transflective positive polarizer mode also contributes to display clarity under varying lighting conditions.

SPI Interface for Embedded Wearable Integration

The module supports SPI interface communication, which is commonly used in:

  • compact embedded electronics
  • wearable processors
  • low-pin-count systems
  • portable IoT hardware

SPI integration simplifies communication architecture while helping reduce board complexity in space-constrained wearable devices.

Flexible Engineering Integration

Readable source materials indicate support for:

  • customized interface definition
  • customized pin configuration
  • customized FPC structure
  • customized display sizing

This flexibility allows OEM developers to adapt the display for different smartwatch PCB layouts and mechanical structures.

Capacitive Touchscreen with Gesture Support

Unlike basic display modules, this product integrates capacitive touch functionality using:

  • G+F touch structure
  • single-point touch
  • gesture control support
  • FT3168 touch IC

The TX7 × RX8 channel configuration supports responsive touch interaction for smartwatch operating systems and wearable UI control.

Enhanced User Interaction for Smart Watches

Touch integration is critical for:

  • swipe navigation
  • gesture control
  • notification management
  • health tracking interaction
  • wearable operating system functionality

The integrated touch architecture helps reduce module thickness while improving overall device integration efficiency.

Compact Mechanical Structure for Wearable Design

The module is engineered specifically for ultra-compact wearable devices.

Key mechanical dimensions include:

  • LTPS glass outline: 45.2 × 34.4 mm
  • active area: 34.9 × 28.7 mm
  • total glass thickness: 0.678 mm

This ultra-thin profile enables:

  • lightweight smartwatch construction
  • compact wearable housings
  • reduced internal assembly space
  • improved ergonomic design

Rounded Display Shape for Modern Wearables

The rounded rectangular structure aligns with modern smartwatch industrial design trends.

The display supports:

  • curved-edge industrial aesthetics
  • narrow-border designs
  • premium wearable appearance
  • optimized UI presentation

Combined with all-round viewing angle support, the display enhances user readability from multiple orientations.

Durable Glass and Stable FPC Design

The readable source materials reference:

  • professional tempered glass
  • up to 7H surface strength
  • ultra-fine FPC circuit design

These features help improve:

  • wearable durability
  • touch reliability
  • signal stability
  • long-term operational consistency

The FPC structure is designed for micron-level circuit precision to maintain stable communication performance in compact wearable systems.

AMOLED Display Applications

This AMOLED touchscreen module is suitable for:

  • smart watches
  • wearable healthcare monitors
  • fitness bands
  • portable IoT terminals
  • industrial wearable electronics
  • smart communication devices

Its combination of AMOLED image quality, SPI interface support, and compact touch integration makes it highly suitable for next-generation wearable electronics.

Application Scenarios

FAQ

What resolution does the AMOLED display support?

The module supports 368 × 448 resolution.

Does the display include touch functionality?

Yes. It includes capacitive touch support with gesture functionality.

What interface does the module use?

The display uses an SPI communication interface.

Which touch IC is integrated?

The module uses the FT3168 touch IC.

Is the display suitable for smartwatch applications?

Yes. The module is specifically designed for smart watches and wearable electronics.

Can the display be customized?

Yes. Customization options include display size, interface definition, pin layout, and FPC structure.

What type of AMOLED structure is used?

The module uses LTPS AMOLED technology.

What is the minimum order quantity (MOQ) for custom TFT displays with specific touch screen integration?

For custom TFT displays with specific touch screen integration, the minimum order quantity (MOQ) is To proceed, please request a datasheet or confirm with our engineering team, as MOQ typically depends on panel size, interface, and customization level. We can provide a tailored quote once your requirements are specified.

What touch screen technologies do you support (e.g., capacitive, resistive, in-cell)?

This 1.78 Inch Square AMOLED Display SPI Touch Screen (model HS0178VVO3A-V1) supports capacitive touch technology. The product page specifies "Capacitive Touch" as the touch type, and web search snippets for similar models indicate an on-cell capacitive touchscreen with custom cover glass. Capacitive touch is the standard for modern smart watches and wearable devices due to its multi-touch capability, durability, and responsiveness.

Can you provide a custom LCD panel with specific dimensions and a round shape?

This product is a 1.78-inch square AMOLED display with specific dimensions (active area 34.9×28.7 mm). For custom LCD panels with different dimensions or a round shape, Please contact our engineering team with your exact requirements to evaluate feasibility and provide a solution.

Need a custom solution or samples?

Contact HuiSoar for customized AMOLED smartwatch displays, SPI wearable OLED modules, capacitive touch integration, and embedded wearable display engineering support for next-generation smart devices.

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