Driver and viewing direction
The reference uses 1/8 duty, 1/4 bias at 3.3 V and 64 Hz, with a 12 o'clock viewing direction. Confirm the operating orientation in the housing.
PRODUCT EXPLORERFront view
Rotate, zoom and inspect the product. Loads on request.
Front product rendering of S3438D, showing the eight numeric fields, vehicle artwork and pressure-unit legends on a white background.
OEM DISPLAY REFERENCE
S3438D
DFSTN LCD with eight numeric fields and vehicle artwork
S3438D distributes eight numeric fields around vehicle and axle artwork, with pressure, temperature and battery symbols across the center. Its drawing specifies a negative DFSTN configuration and an 80.00 × 36.00 mm minimum viewing area.
80.00 × 36.00 mmMinimum viewing area
DFSTN, negativeDisplay mode
A starting point for your custom display.
Images, 3D geometry and listed parameters are OEM reference information. Final dimensions, electrical requirements, optical configuration and construction are confirmed for your project.
Product video
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01 / REFERENCE CONFIGURATION
Start with the essentials.
A reference configuration for discussing your LCD project. Final specifications are subject to project confirmation.
| Model reference | S3438D |
|---|---|
| Glass outline | 83.00 ± 0.20 × 41.00 ± 0.20 mm |
| Minimum viewing area | 80.00 × 36.00 mm |
| Pin pitch | 2.00 mm |
| Display mode | DFSTN, negative |
| Drive condition | 1/8 duty, 1/4 bias |
| LCD operating voltage | 3.3 V |
| Frame frequency | 64 Hz |
| Viewing direction | 12 o'clock |
| Polarizers | Front and rear transmissive, adhesive |
| Connection | Pins |
| Operating temperature | −20 to +70 °C |
| Storage temperature | −30 to +80 °C |
02 / OEM DESIGN
Make the display fit your product.
Bring your requirements. We will review the configuration with you.
Pin and aperture layout
Coordinate the 2.00 mm pin pitch with the mating board and reserve the 80.00 × 36.00 mm minimum viewing area in the window design.
03 / APPLICATION DIRECTION
Tire-pressure displays
The source application is tire-pressure displays. Vehicle, pressure and temperature symbols form the fixed segment layout; sensing, wireless links and warning thresholds belong to the complete system.
ENGINEERING NOTES
What the specification means for your design.
How S3438D relates to LCD mode, drive, connection and integration choices, with links to the SuccessLCD engineering guides.
DFSTN LCD mode, negative
Double-film STN: two compensation films give high contrast, here with a dark background and backlit segments. Compare TN, HTN, STN, FSTN, DFSTN and VA →
Drive: 1/8 duty, 1/4 bias
8 common electrodes share the segment lines. Set the controller to the duty, bias, voltage and frame frequency on the drawing. Duty and bias explained →
Connection: metal pins
Metal pins are soldered into the PCB, the most robust connection for segment glass. LCD connection types →
Negative display
A negative LCD needs a backlight; the look is close to a VFD or LED readout. VFD vs LCD →
Similar DFSTN references
- S3490DSlim DFSTN LCD with four pressure fields and a central tire symbol
- S3437DDFSTN segment LCD with pressure and temperature fields
- S4404DDFSTN food thermometer display reference
- S3999DDFSTN thermostat display reference
- S3412DSlim segment LCD with eight numeric fields and an axle diagram
- S4102DDFSTN LCD
04 / PRODUCT SUPPORT
From reference to your design.
Does S3438D include tire-pressure sensors?
This page describes the LCD reference and its fixed artwork. Sensors, wireless electronics and system software are specified separately.
Can the screen show different pressure units?
The artwork includes BAR and PSI legends. Their activation and the unit conversion logic depend on the driver and system implementation.
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