Facing a bottleneck in your Embedded Display Project?
Don’t let complex integration or supply chain issues slow your time-to-market. Book a free consultation with the RJY expert team for tailored design and manufacturing support.


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
Display and controller board projects usually require more than a model number. RJY can review your technical requirements before sample or quotation discussion.
Check display size, resolution, brightness, viewing angle, touch requirement, and operating environment.
Review interface type, pin definition, controller board requirement, driver IC, and system compatibility.
Discuss cover glass, backlight, touchscreen, FPC, firmware, and mechanical coordination when needed.
Prepare application details, sample quantity, annual demand, target timeline, datasheet, or reference product.
This 3.4-inch round TFT LCD display with CTP touch is designed for compact embedded applications requiring a high-resolution circular display with interactive functionality. 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 integrated capacitive touch panel (CTP) enables intuitive user interaction, making this round display suitable for touch-based control interfaces, smart terminals, IoT devices, and industrial applications. The circular form factor provides a distinctive product appearance while allowing flexible integration into compact device designs.
Equipped with the JD9365DA driver IC, this display module supports stable image control and efficient embedded system integration. With an outline dimension of 112.5 × 112.5 × 3.4 mm and an operating temperature range of -20°C to +70°C, it is suitable for various embedded and industrial display applications.
| 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 | 112.5 × 112.5 × 3.4 | mm | Integrated touch structure |
| 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 |
The combination of a circular TFT LCD and capacitive touch panel provides an integrated display solution for products requiring both visual output and interactive operation.
The high-resolution 800×800 pixel format delivers detailed graphics, smooth icons, and clear user interfaces for advanced embedded applications.
The MIPI interface provides an efficient connection option for embedded systems requiring compact design, reduced wiring complexity, and reliable display communication.
The CTP touch panel enables interactive operation for smart terminals, HMI systems, control interfaces, and customized electronic devices.
The circular display format offers a distinctive product appearance while supporting flexible installation in space-conscious product designs.
The module supports operation from -20°C to +70°C, making it suitable for various embedded and industrial environments.
The round 3.4-inch touch display provides a modern interface solution for wearable products and portable devices requiring high-resolution graphics and interactive operation.
The combination of high resolution, MIPI interface, and CTP touch function supports compact human-machine interaction systems.
The circular display design helps create visually distinctive control panels, smart switches, and connected home interfaces.
The operating temperature range and integrated touch capability allow use in industrial instruments, monitoring systems, and embedded control equipment.
RJY Display supports project-based display customization, including touch integration, interface adaptation, backlight customization, and controller matching according to application requirements.
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.
Explore related display guides, application notes, integration references, and RFQ preparation content for this product category.
Showing 3 of 66 related articlesA “toxic screen” is not a single formal technical term. People may use it to describe several different concerns: harmful screen content, excessive screen time, blue...
Read ArticleIf you know the side length of a square, you can calculate its diagonal by multiplying the side length by the square root of 2. The...
Read ArticleMatching a TFT LCD module with an Android control board is not only a connector problem. It is a system-level engineering decision involving display interface, resolution,...
Read Article