Key-Disp manufactures intelligent LCD and TFT display systems and motor controllers for electric bicycles and scooters.
Key-Disp, also known as Key-Display, is a specialized manufacturer based in Tianjin, China, focusing on electronic components for light electric vehicles. The company primarily produces intelligent display meters (LCD and TFT) and motor controllers used by various electric bicycle brands as original equipment (OEM). Key-Disp displays serve as the control hub for e-bikes, providing riders with real-time analytics such as speed, battery life, trip distance, and error diagnostics.
Popular models like the KD986, KD718, and KD21C offer customizable interface settings, allowing users to adjust pedal assist levels, wheel size configurations, and speed limits. These robust, weather-resistant units are designed to integrate seamlessly with standard e-bike motor systems, ensuring a reliable riding experience.
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On most Key-Disp models (such as the KD986 or KD718), you can enter the settings menu by holding the '+' and '-' buttons simultaneously for about 2 seconds while the display is powered on.
Error codes indicate specific system faults. Common codes include 21 (Current Abnormality), 23 (Motor Phase Abnormality), and 30 (Communication Abnormality). Refer to your specific model's manual for a full definition list, as codes can vary.
To reset the Trip distance, enter the display settings menu and navigate to 'Trip Reset'. Select 'Yes' to clear the current trip data. Some models may require a specific button combination found in the user manual.
Certain Key-Disp models, such as the KD986, are equipped with a USB port that allows you to charge external devices like smartphones while the e-bike system is powered on.
Enter the settings menu by holding the '+' and '-' buttons, then navigate to the 'Unit' or 'Toggle Unit' option. From there, you can select 'Metric' (km) or 'Imperial' (mile).