1.28 inch Knob Screen TFT Module UART HMI Display

Parameters of 1.28 inch knob screen TFT module UART HMI display

Product Introductions

The 1.28 inch knob screen TFT module is a ready-to-use HMI display solution integrating round TFT display, rotary knob encoder, push switch and onboard control MCU. Different from conventional separate TFT display assemblies, this knob screen combines visual output and physical adjustment in one compact unit. It is not simply hardware or software, but a solution that tightly integrates hardware and UI design. The communication method used by this screen is TTL UART.

Applications of round circular knob screen

The knob screen is mainly used for Smart Home and Consumer Electronics.

Intelligent switch panel: replaces traditional switches to achieve scene control, temperature and humidity display, etc. 

Small household appliances: interactive interfaces for high-end coffee machines, air purifiers, humidifiers.

The main feature of 1.28 inch knob display

The core value of the 1.28 inch circular UART HMI display lies in its extremely low integration and development threshold, providing a ‘plug and play’ solution for products that require small, delicate, and interactive interfaces.

1. Precise and Efficient Operation: Rotating the knob for continuous adjustment (such as volume, temperature) offers a better and more precise feel compared to sliding on the screen.

2. Excellent Interaction Feedback: Clear confirmation feedback is provided, enhancing the operation quality.

3. Simple interface: One knob defined through the screen can achieve multiple functions, making the control area simple while offering unlimited functions.

4. Technology and quality: The mechanical texture and the technological aspect of the digital screen are perfectly integrated, enhancing the overall style of the product.

Jingda Display Company Profile

Shenzhen Jingda Display Technology Co., Ltd(JDA in brief). JDA company is a professional segment LCD display manufacturer and supplier in Shenzhen, China. JDA has been focusing on the monochrome LCD display field for 10+ years. JDA’s LCD display products have the advantage of high cost-effectiveness and can provide a good LCD solution for clients. With innovation at its core, the company is committed to providing customers with high-performance and reliable display solutions. There are 6000㎡ dust-free workshop, including Hundred-level clean workshop and Thousand-grade clean workshop. It provides a stable and reliable environment for the production of high-quality LCD display products.

Factory Strength

1. Self-owned clean workshop with mature COG and COB bonding production lines.

2. Complete in-house testing lab for temperature, vibration, ESD and aging verification.

3. Strict IQC, IPQC and FQC quality control system, 100% function inspection before shipment.

4. Long-term stable supply chain for TFT panels and electronic components, good anti-risk ability for material shortage.

5. Support OEM and ODM for custom HMI display modules according to client mechanical and electrical requirements.

FAQ

Q: What is the baud rate range of the UART interface?

A: Default baud rate is 115200, adjustable from 9600 up to 921600 according to customer project demands. The module supports 3.3V and 5V TTL level UART communication.

Q: Is the TFT display panel IPS wide viewing angle?

A: Yes, this knob screen adopts IPS TFT panel with 178° wide viewing angle, so the screen content remains clear without color shift from side viewing positions.

Q: Does the module support capacitive touch upgrade?

A: Yes, capacitive touch version is optional on request. We can integrate CTP on the round TFT display while retaining the rotary knob and push function.