40×4 Line Character LCD Screen Module with White/Yellow-Green Backlight | RoHS Compliant | FSTN/STN Display
Looking for a high-quality 40×4 LCD for industrial panels or a reliable LCD supplier for automotive tools? Our industrial-grade 40×4 Character LCD Module operates from -20°C to +70°C, supports 3.3V/5V dual voltage, and is RoHS compliant for export. We provide custom LCDs with white backlight, OEM pricing for bulk orders, and cost-effective POS display replacements. All modules come with a 2-year warranty.
40×4 Character LCD Display Module | Reliable Alphanumeric Display for Demanding Applications
Our 40×4 Character LCD Module provides a robust and versatile solution for displaying information in a wide range of electronic devices. Featuring a wide operating temperature range and dual 3.3V/5V supply voltage compatibility, this module is engineered for reliability in industrial, automotive, and commercial applications.
Technical Specifications
- Display Format: 40 characters x 4 lines
- Display Type: FSTN (Film Super Twist Nematic) / STN (Super Twist Nematic)
- Backlight Color: White Backlight / Yellow-Green Backlight
- Viewing Angle: Optimal at 6:00 o’clock or 12:00 o’clock
- Operating Temperature Range: -20°C to +70°C (Wide Temperature Range)
- Supply Voltage: 3.3V or 5V (Dual Voltage Compatible)
- Compliance: RoHS Compliant (Restriction of Hazardous Substances)
- Available Colors: Gray, Yellow-Green, Blue (on select models)
| Manufacturer | Thermstars |
| Part Number | TSCB4004-02 |
| Display Format | 40×4 Character |
| Interface | 6800 4-bit / 8-bit Parallel |
| IC or Equivalent | ST7066U AIP31066 HD44780 SPLC780D |
| Connection | Pin Header |
| Outline Dimension | 190.00(W)x54.00(H)x13.50(T)mm |
| Viewing Area | 149.00×30.00mm |
| Active Area | 141.65×22.32mm |
| Character Size | 2.81×4.68mm |
| IC Package | COB |
| Display Type | FSTN /STN. Gray/Yellow-Green/Blue |
| Viewing Direction | 6:00/12:00 |
| Power Supply(Typ) | 3.3V/ 5.0V |
| Operating Temperature | -20℃~70℃ |
| Storage Temperature | -30℃~80℃ |
Core Features & Benefits (Bullet Points for Scannability)
- ✅ High Readability: Clear 40×4 character format with selectable backlight colors for optimal visibility in various lighting conditions.
- ✅ Extreme Environment Ready: Built to perform reliably in a wide operating temperature range (-20°C to 70°C), making it suitable for harsh environments.
- ✅ Design Flexibility: Operates on both 3.3V and 5V power supplies, simplifying integration into modern and legacy systems.
- ✅ Standard Interface: Compatible with most common LCD controllers (e.g., HD44780), ensuring easy programming and integration.
- ✅ Eco-Friendly & Durable: RoHS compliant construction ensures longevity and meets international environmental standards.
Where to Use This 40×4 LCD Module
This versatile display is ideal for:
- Industrial Control Panels: Machine status, parameter display.
- Test & Measurement Equipment: Data readouts, diagnostic information.
- Medical Devices: Patient monitoring, equipment settings.
- Embedded Systems & Prototyping: Arduino, Raspberry Pi, and other microcontroller projects.
- Point-of-Sale (POS) Systems: Retail terminal displays.
- Automotive Diagnostic Tools.






