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Display Modules
3.4-Inch Round TFT LCD Display, 800×800 Resolution, MIPI Interface, Optional CTP Touch Panel
Display and controller solution support for engineering-driven projects.
– LCD Size: 3.4 inches
– Resolution: 800 × 800 pixels
– Brightness: 350 cd/m²
– Interface Type: MIPI
– Touch Support: Optional CTP Touch Panel
For faster evaluation, please share your target application, display size, resolution, interface, touch requirement, controller board requirement, and annual demand.
Engineering Review
Confirm Product Fit Before Sampling
Display and controller board projects usually require more than a model number. RJY can review your technical requirements before sample or quotation discussion.
01
Specification Matching
Check display size, resolution, brightness, viewing angle, touch requirement, and operating environment.
02
Interface & Board Review
Review interface type, pin definition, controller board requirement, driver IC, and system compatibility.
03
Customization Direction
Discuss cover glass, backlight, touchscreen, FPC, firmware, and mechanical coordination when needed.
04
RFQ Preparation
Prepare application details, sample quantity, annual demand, target timeline, datasheet, or reference product.
This 3.4-inch round TFT LCD display is designed for compact embedded applications requiring a circular display format, high-resolution image performance, and efficient MIPI interface integration. Featuring an 800×800 resolution, 350 cd/m² brightness, and a MIPI interface, this module provides a reliable display solution for smart devices, wearable electronics, embedded HMI systems, and customized electronic products.
The round LCD structure provides a distinctive visual appearance while optimizing space utilization in compact product designs. With support for an optional capacitive touch panel (CTP), this display module can be integrated into interactive interfaces including smart terminals, control systems, and embedded equipment.
Equipped with the JD9365DA driver IC, this display module supports stable image processing and reliable embedded system integration. The compact module design, with an outline dimension of 94.90 × 96.95 × 2.22 mm, provides flexibility for applications requiring a thin and space-efficient display solution.
Specification Table
| Item | Specification | Unit | Remark |
|---|---|---|---|
| LCD Size | 3.4 | inch | Round display |
| Resolution | 800 × 800 | pixels | High-resolution circular display |
| Driver IC | JD9365DA | — | Display driver IC |
| Viewing Area | 87.6 × 87.6 | mm | Active display area |
| Module Size | 94.90 × 96.95 × 2.22 | mm | Thin module design |
| Brightness | 350 (Typ.) | cd/m² | Standard brightness |
| Interface | MIPI | — | High-speed embedded interface |
| Touch Panel | Without / With CTP | — | Optional capacitive touch support |
| Operating Temperature | -20 ~ +70 | °C | Industrial application range |
Key Features
3.4-Inch High-Resolution Round TFT Display
The circular display format provides a unique visual experience for embedded products while maintaining detailed image quality with an 800×800 pixel resolution.
800×800 High-Definition Resolution
The high-resolution square pixel arrangement enables clear graphics, smooth icons, and detailed user interfaces for advanced embedded applications.
MIPI Interface for Compact Integration
The MIPI interface provides an efficient connection solution for embedded systems requiring compact wiring and high-speed display communication.
Optional Capacitive Touch Function
The module supports optional CTP touch panel integration, enabling interactive operation for smart devices, control interfaces, and HMI applications.
Thin and Compact Mechanical Design
With an outline dimension of 94.90 × 96.95 × 2.22 mm, this round TFT LCD module is suitable for products where installation space and thickness are important considerations.
Wide Operating Temperature Range
The module supports operation from -20°C to +70°C, making it suitable for various embedded and industrial environments.
Applications
- Smart Wearable Devices
- Industrial HMI Systems
- Smart Home Control Interfaces
- IoT Embedded Terminals
- Portable Electronic Devices
- Medical Equipment Interfaces
- Automotive Interior Displays
- Customized Embedded Products
Application Scenarios
Advanced Wearable Devices
The round 3.4-inch display provides a modern circular interface for wearable products and portable electronics requiring high-resolution visual performance.
Embedded HMI Control Systems
The combination of high resolution, MIPI interface, and optional touch support makes this display suitable for compact human-machine interaction systems.
Smart Home Control Panels
The circular form factor helps product designers create visually distinctive smart switches, control panels, and connected home interfaces.
Industrial Monitoring Equipment
The thin structure and wide operating temperature range support integration into industrial instruments, monitoring systems, and embedded control equipment.
Customized Display Solutions
RJY Display supports project-based display customization, including touch integration, interface adaptation, backlight customization, and controller matching based on application requirements.
Why Choose This 3.4-Inch Round TFT LCD Display?
- 800×800 high-resolution round display for detailed graphical interfaces
- MIPI interface support for compact embedded system integration
- Optional CTP touch panel for interactive applications
- Thin module structure for space-limited product designs
- Wide operating temperature range for embedded applications
- Suitable for smart devices, HMI systems, and industrial equipment
- Customization support based on project requirements
Request Information
Would you like to receive the datasheet, 3D model (STEP file), or a sample quote for evaluation?
Contact RJY Display for display integration support and customized TFT LCD solutions.
FAQ
Is RJY an Original Equipment Manufacturer (OEM)?
Yes. RJY is a direct provider and manufacturer with vertically integrated capabilities, offering full-cycle hardware innovation from design and PCBA assembly to final system integration.
What types of customization does RJY accept?
We can provide customization in the following four distinct areas: Systems & HMI、Display Modules、Software Services、Industrial Design.
What is the stock status for this product?
Most products on display have at least one unit in stock for testing or quick sampling. For sample requests over 20 units, please check with us in advance to ensure the current stock status.
How are the fees structured for custom projects?
Our custom project fees typically consist of two main components:
NRE (Non-Recurring Engineering) fees and unit pricing.
In many cases, if your order reaches a certain volume, we offer to offset or credit a portion of the NRE fees back to you.
NRE (Non-Recurring Engineering) fees and unit pricing.
In many cases, if your order reaches a certain volume, we offer to offset or credit a portion of the NRE fees back to you.
How long does a typical customization project take?
The timeline depends on the depth of customization:
Software/Firmware Tweaks: 1-2 weeks
Minor Hardware Modifications: 4-6 weeks
Full-Cycle R&D Projects: 12-16 weeks
Software/Firmware Tweaks: 1-2 weeks
Minor Hardware Modifications: 4-6 weeks
Full-Cycle R&D Projects: 12-16 weeks
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