Electrical drive
The reference specifies 1/4 duty, 1/3 bias at 5.0 V and 64 Hz. Confirm the driver waveform and segment assignment for the quoted project.
PRODUCT EXPLORERFront view
Rotate, zoom and inspect the product. Loads on request.
Front product rendering of S4642D, showing the date field, wide numeric row and lower status-symbol strip on a white background.
OEM DISPLAY REFERENCE
S4642D
Blue negative STN LCD with clock, radio and status artwork
S4642D places a date field beside a wide numeric row, AM/FM and temperature legends, with a lower strip of signal, house, alarm and battery symbols. The drawing gives a minimum viewing area of 73.60 × 22.00 mm.
73.60 × 22.00 mmMinimum viewing area
5.0 VLCD operating voltage
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 | S4642D |
|---|---|
| Glass outline | 82.50 ± 0.20 × 29.00 ± 0.20 mm |
| Minimum viewing area | 73.60 × 22.00 mm |
| Display mode | STN, negative (blue) |
| Drive condition | 1/4 duty, 1/3 bias |
| LCD operating voltage | 5.0 V |
| Frame frequency | 64 Hz |
| Viewing direction | 6 o'clock |
| Polarizers | Front and rear transmissive, adhesive |
| Connection | Elastomer contacts |
| 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.
Contact and window design
The drawing names an elastomer contact method. Coordinate the compression arrangement and housing window around the minimum viewing area.
03 / APPLICATION DIRECTION
Instrumentation
The owner-supplied application is instrumentation. Clock, radio and status markings identify fixed artwork only; radio reception, temperature sensing, alarm logic and communications depend on the finished instrument.
ENGINEERING NOTES
What the specification means for your design.
How S4642D relates to LCD mode, drive, connection and integration choices, with links to the SuccessLCD engineering guides.
STN LCD mode, negative
Super twisted nematic glass: keeps contrast at higher multiplex ratios, with a yellow-green, gray or blue appearance. Negative mode shows bright segments on a dark background with a backlight. Compare TN, HTN, STN, FSTN, DFSTN and VA →
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: zebra connector
An elastomeric connector presses the glass contacts against PCB pads; the housing or a bracket provides the clamping force. 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 STN references
- S3543DYellow-green STN dual-reading instrument display reference
- S2873DSTN instrumentation display reference
- S3132DWide blue negative STN LCD with two characters and paired chevrons
- S3131DBlue negative STN LCD with direction arrows and two characters
- S3203DBlue negative STN refrigerator display reference
- S3113DOctagonal STN segment LCD with a clock-face layout
04 / PRODUCT SUPPORT
From reference to your design.
Does S4642D include the functions named on its screen?
The radio, clock, temperature and status markings are display artwork. Associated electronics, sensors and software are not established by this LCD reference.
Which dimensions should guide the housing window?
The drawing lists a minimum viewing area of 73.60 × 22.00 mm. Confirm the final glass envelope and contact compression in the project drawing.
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