Four lines changes what a character display can do: menus, multi-value status and simple settings screens without a graphic controller. This 2004 build is STN yellow-green — the classic industrial look, chosen for legibility and cost in equipment that runs for decades. If your interface is text-shaped, this is the largest character format that still behaves like one.
Specifications
| Format | 20 characters × 4 lines (2004) |
| Fluid | STN, yellow-green background |
| Construction | COB |
| Source | Made-in-China listing |
| Minimum order | 2 pcs |
| Listing source | Made-in-China audited store listing |
| Inspection | 100% visual and functional before shipment |
About this module
COB (chip-on-board) construction mounts the controller on a PCB behind the glass, which makes the module rigid, connector-friendly and easy to fix behind a front panel with screws or a bezel. It is the traditional build for character and panel graphic modules, and the one service teams prefer: a COB module can be unplugged and replaced in the field without touching the glass. The cost of that convenience is thickness — plan the depth behind the panel accordingly.
Electrically these modules speak the classic parallel MPU interface of their format (with serial variants where the controller supports them), and character formats follow the HD44780 command-set standard that decades of firmware already speaks. Customisation covers backlight colour and brightness, fluid type, connector style and, within the format, outline variants dimensioned in the listings. Every unit is 100% visually and functionally inspected before shipment.
Where this module is used
- Industrial equipment menus
- Instrument settings screens
- Legacy-format upgrades
Ordering and lead times
Minimum order for this model is 2 pcs. The project rhythm follows the audited FAQ: drawings in about 3 days, samples in about 2 weeks, mass production in about 5–6 weeks. Production quotations are issued per configuration — send the model name and quantity to [email protected] or use the form below.
FAQ
Can I get samples first?
Yes — samples follow the drawing round and take about 2 weeks; standard models can also be sampled from the listed minimum quantity.
Which markets do you ship to?
Main markets per the audited profile are Europe, South America, Southeast Asia and Korea, with customers also in North America and Asia-Pacific. Terms are FOB Shenzhen, T/T or L/C.
Who do I contact about this model?
Sales contact Jennifer Chang at [email protected] — send the model name, your host interface and the quantity, and the reply will confirm the drawing and sample path.
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Send an Inquiry
Tell us the size, resolution, interface and quantity — we reply with the matching platform model or the custom route, drawings first.