

3.4" Round TFT LCD Display 800×800 with Capacitive Touch – MIPI DSI Interface, LI9881C Driver
- 💹 Enjoy a 20% discount for orders over 500
- 📉 A 15% discount is available for orders ranging from 200 to 499
- 🎁 A 10% discount is available for orders ranging from 50 to 199
- 🎁 A 5% discount is available when ordering 10-49
Interested in customizing this product? Get in touch with us.
Order samples, immediate delivery.
Factory bulk lead time: 3 weeks.




3.4" Round TFT LCD Display 800×800 with Capacitive Touch – MIPI DSI Interface, LI9881C Driver
- 💹 Enjoy a 20% discount for orders over 500
- 📉 A 15% discount is available for orders ranging from 200 to 499
- 🎁 A 10% discount is available for orders ranging from 50 to 199
- 🎁 A 5% discount is available when ordering 10-49
Resources & Downloads
3.4" Round TFT LCD Display 800×800 with Capacitive Touch – MIPI DSI Interface, LI9881C Driver
The DMKTT0340F2NA is a 3.4-inch round TFT-LCD display module integrating the display panel, driver IC, FPC, backlight, and capacitive touch panel (CTP) into a compact solution. Featuring a resolution of 800×800 pixels and support for 16.7 million colors, this module adopts a high-speed MIPI DSI interface, making it ideal for modern embedded systems requiring both premium visual quality and distinctive circular UI design.
Designed for reliability in demanding environments, the DMKTT0340F2NA supports an operating temperature range of -30°C to +80°C and delivers a typical luminance of 850 cd/m². Its high contrast ratio and wide viewing angles ensure consistent readability in both indoor and outdoor applications.
- High-Resolution Round Display: 800×800 pixels with 16.7M colors, optimized for circular UI and HMI designs.
- High-Speed MIPI DSI Interface: Enables stable data transmission and smooth visual performance.
- High Brightness Backlight: 5S2P LED configuration with typical luminance of 850 cd/m².
- Integrated Capacitive Touch: 10-point multi-touch via I²C, surface hardness ≥6H, transmittance ≥85%.
- Wide Temperature Operation: -30°C to +80°C for industrial and outdoor use.
| Technical Parameter | Specification |
|---|---|
| Model | DMKTT0340F2NA |
| Display Type | TFT LCD |
| Display Colors | 16.7M |
| Resolution | 800 (RGB) × 800 |
| Active Area (AA) | 87.6 × 87.6 mm |
| Module Dimensions | Approx. 99.79 × 99.60 mm |
| Cover View Area | 96.0 (H) × 92.70 (V) mm |
| Touch Resolution | 800 × 800 |
| Interface | MIPI DSI (Display) / I²C (Touch) |
| TFT Driver IC | LI9881C |
| CTP Controller | CF1133 |
| Analog Supply (VCI) | 2.8V Typ. (2.5–6.0V) |
| IO Supply (IOVCC) | 2.8V Typ. (1.75–3.3V) |
| Touch Supply | 1.8V |
| Backlight | White LED, 5S2P |
| Luminance (Typ.) | 850 cd/m² |
| Contrast Ratio (Typ.) | 1200:1 |
| Viewing Angle (CR≥10) | 80° / 80° / 80° / 80° |
| Response Time (Typ.) | 35 ms |
| Operating Temperature | -30°C ~ +80°C |
| Storage Temperature | -30°C ~ +80°C |
| Compliance | RoHS |
DisplayModule provides comprehensive engineering and customization support for the DMKTT0340F2NA, enabling seamless integration into a wide range of embedded and industrial systems.
- Mechanical Customization: FPC routing, connector options, and cover glass printing.
- Optical Tuning: Brightness binning, contrast optimization, and outdoor visibility solutions.
- Touch Integration: I²C protocol support, INT/RESET configuration, and firmware guidance.
- Mass Production Support: Stable supply chain with long-term availability.
Ideal for thermostats, smart controllers, and central control panels with circular UI concepts.
Suitable for portable meters, outdoor instruments, and professional measurement equipment.
Well-suited for products requiring compact round displays and modern visual design.
Reliable solution for industrial control terminals and human-machine interfaces.
The module combines a MIPI DSI display interface with an I²C capacitive touch interface, allowing easy integration with mainstream application processors and embedded platforms.
- Display Interface: MIPI DSI (D-PHY compliant; lane and timing configuration required).
- Touch Interface: I²C with INT and RESET signals.
- Power Design: Separate supply domains for display and touch, with defined power-on sequence.
- Mechanical Fit: Approx. 99.79 × 99.60 mm outline; 87.6 × 87.6 mm active area.
Documentation: Complete specifications, pin definitions, timing diagrams, and reliability data are available in the official datasheet.
Datasheet: Download DMKTT0340F2NA Datasheet (PDF)
Engineering Support: Contact our technical team for assistance with MIPI DSI configuration, power sequencing, or touch driver integration.








