FPC connection
Match the 30-contact FPC at 0.50 mm pitch to the PCB connector, and confirm the FPC length and routing for the project.
PRODUCT EXPLORERFront view
Rotate, zoom and inspect the product. Loads on request.
Front rendering of S3420D, showing the arc scale, weekday labels and clock digits, with the FPC below the display. Materials and fine geometry are visual references for the OEM project.
OEM DISPLAY REFERENCE
S3420D
FSTN segment LCD module with FPC and backlight
S3420D is a square FSTN display with an arc bar scale, weekday labels, a four-digit clock field and ECO, COMP and BOOST legends. A backlight unit sits behind the glass, and a 30-contact FPC carries the display connection.
30 contacts, 0.50 mm pitchFPC contacts
Backlight, whiteBacklight
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
Short product video. Playback starts when you press play.
01 / REFERENCE CONFIGURATION
Start with the essentials.
A reference configuration for discussing your LCD project. Final specifications are subject to project confirmation.
| Model reference | S3420D |
|---|---|
| LCD outline | 38.00 ± 0.20 × 40.50 ± 0.20 mm |
| Minimum viewing area | 35.00 × 35.00 mm |
| Maximum LCD thickness | 2.80 mm max |
| Backlight outline | 38.00 × 45.00 mm |
| FPC contacts | 30 contacts, 0.50 mm pitch |
| Display type | FSTN |
| Display mode | Positive, transflective |
| Connection | FPC |
| Backlight | Backlight, white |
| LCD operating voltage | 3.3 V |
| Drive condition | 1/4 duty, 1/3 bias |
| Viewing direction | 12 o'clock |
| 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.
Backlight and window
Plan the 38.00 × 45.00 mm backlight outline in the housing, and confirm the backlight electrical requirements for the project.
Electrical requirements
Confirm your host controller, supply, drive method and backlight requirements before sampling.
03 / APPLICATION DIRECTION
Dryers
The source application is dryers. The scale, schedule and mode legends are fixed display artwork; heating, airflow and humidity control belong to the appliance electronics.
ENGINEERING NOTES
What the specification means for your design.
How S3420D relates to LCD mode, drive, connection and integration choices, with links to the SuccessLCD engineering guides.
Drive: 1/4 duty, 1/3 bias
4 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: FPC
A flexible printed circuit tail plugs into a connector or is soldered to the board; check pitch, contact side and bend radius. FPC vs FFC and LCD connection types →
Transflective polarizer
Readable by daylight and with a backlight in the dark. Transflective LCD display →
Similar FSTN references
04 / PRODUCT SUPPORT
From reference to your design.
Which LCD drive settings are listed for S3420D?
The reference lists 3.3 V LCD operating voltage and 1/4 duty, 1/3 bias. Check these requirements against your LCD driver; final electrical requirements are confirmed for the project.
Is the FPC length fixed?
No FPC length is listed on this page. The FPC length and routing are confirmed for the project.
YOUR NEXT LCD PROJECT
Let’s shape your display.
Share your required display content, enclosure space, drive arrangement, operating environment and target quantity.
