In the automotive electronics field, display modules not only need to be clear and reliable but also must adapt to complex environments and ensure long-term stable operation. To meet the specific project requirements of our Indian customer, we successfully customized a circular Segment COG LCD Module, specifically designed for automotive instrument clusters and status display systems, balancing readability, stability, and cost control.

Project Background

The customer is from the Indian automotive industry, and the target application is a circular instrument cluster display for vehicles.

This application presented the following key requirements for the display solution:

Circular structural design to match the automotive instrument cluster appearance

Clear readability in bright light conditions

Wide operating temperature range to adapt to the vehicle's internal and external environment

Low power consumption and long-term stable operation

Compliance with automotive electronics and environmental regulations

Customized Solution Overview

Based on customer needs, we recommended and customized a Segment COG (Chip On Glass) LCD Module solution. This solution is compact and highly reliable, making it ideal for industrial and automotive applications such as instrument clusters.

The core technical specifications are as follows:

LCD Type: FSTN Positive Transflective

Operating Voltage: VDD = 3.0V, VLCD = 7.0V

Viewing Direction: 12 o'clock

Driving Method: 1/32 Duty, 1/5 Bias

Operating Temperature: -20℃ to +70℃

Storage Temperature: -30℃ to +80℃

Connection Method: COG + PIN

Driver IC: ST7567

Backlight Solution: 2 white LEDs, VF = 3.1–3.20V, IF = 30mA

Environmental Standards: All materials comply with EU RoHS directives

Solution Advantages and Customer Value

1. Display Performance Suitable for Automotive Environments

The FSTN positive transflective design provides excellent contrast in both bright daylight and nighttime backlit conditions, making it ideal for automotive instrument cluster reading scenarios.

2. Wide Temperature Stable Operation

Supports an operating temperature range of -20℃ to +70℃, meeting the vehicle usage environment in different regions and seasons of India.

3. COG Structure, Reliable and Compact

COG technology reduces connection points, improves shock resistance, and saves space, facilitating the overall instrument cluster design.

4. Mature Driver IC, Strong System Compatibility

Utilizing the ST7567 driver IC, it facilitates seamless integration with existing automotive electronic control systems, shortening the development cycle.

5. Customized Segment Design

Based on the customer's instrument panel functional requirements, a customized circular segment layout is designed to provide intuitive display of speed, status, and warning information.

Project Achievements

The circular Segment COG LCD module has successfully completed sample verification and passed customer testing, and has been successfully applied in automotive instrument panel projects. The customer provided positive feedback on the display effect, stability, and overall compatibility, and expressed interest in future mass production cooperation and continued customization for new vehicle models.

Summary

By deeply understanding automotive application scenarios and customer needs, we provided our Indian customer with a highly reliable, environmentally adaptable, and customizable circular Segment COG LCD display solution.

This case shows that for the car and industrial sectors, custom LCD displays are still the best choice because they get the right balance of performance and cost.

If you are looking for a customised display module for car instrument panels, please get in touch.