3.8" STN graphic LCD module, 128×64
- Model
- JM12864G
- Size
- 3.8"
- Brand
- Junxian Display
- Place of origin
- Shenzhen, China
- Sample MOQ
- 5 pcs
- Production MOQ
- 100 pcs (standard) / 1,000 pcs (fully custom)
- Lead time
- 10-20 days
- Payment
- T/T, L/C, PayPal
- Trade terms
- EXW, FOB Shenzhen, CIF
Specifications
Model JM12864G, built in our Shenzhen plant - 220 cd/m² brightness, -20°C to +70°C operating range, ST7920 driver IC. Sample MOQ is 5 pcs, production MOQ 100 pcs, and lead time 10-20 days once the specification is frozen.
| Model number | JM12864G |
|---|---|
| Screen size | 3.8" |
| Resolution | 128×64 |
| Display type | STN Blue, Yellow-green |
| Brightness | 220 cd/m² |
| Colours | Blue/yellow-green |
| Touch panel | Customizable |
| Driver IC | ST7920 |
| Driving voltage | 3.3V/5.0V |
| Backlight | LED White Light |
| Backlight lifetime | 40,000 Hours |
| Outline dimension | 93.0mm×70.0mm×13.0mm |
| Active area | 72.0mm×40.0mm |
| Operating temperature | -20°C to +70°C |
| Storage temperature | -30°C to +80°C |
| Compliance | REACH & RoHS Compliant |
Typical values at 25 °C. Tolerances, pin assignment and timing are in the datasheet — ask for it before locking your PCB layout.
Price depends on quantity, touch option and packaging. Send the quantity and we quote the same working day where possible.
Product description
3.8 Inch Dual Backlight Monochrome LCD Module With Yellow-Green/Blue LED 3.3V/5V Graphic LCD Screen
Custom & OEM Monochrome LCD Module, Enhanced Customization & Performance
Building on its core strengths, the JM12864G now offers dual backlight color options to suit diverse application needs: a classic yellow-green STN display for high readability in standard environments, and a modern blue background with white LED backlight for enhanced visual contrast in low-light conditions. This flexibility ensures optimal visibility across industries, from industrial machinery to consumer gadgets.
1. Product Features and Advantages
(1) Dual Backlight Color Options
Classic yellow-green STN display for high readability in standard environments.
Modern blue background with white LED backlight for enhanced contrast in low-light conditions, ensuring flexibility across diverse applications.
(2) Extended Temperature Resilience
Operating Temperature: -20°C to 70°C, delivering stable performance in harsh environments.
Storage Temperature: -30°C to +80°C, maintaining display quality during long-term storage in extreme climates.
(3) Versatile Connectivity & Compatibility
Dual power supply (3.3V/5V) and flexible parallel/serial interfaces for easy integration with various systems.
Rich font/graphics support: 8,192 Chinese characters, 128 ASCII characters, and 64×256 GDRAM for versatile display needs.
(4) Compact Design & Energy Efficiency
Compact size (93×70×12.5mm) ideal for space-constrained setups.
Low-power sleep/standby modes enhance battery life in portable devices.
(5) High quality
Guaranteeing quality and compliance with RoHS and REACH requirements.
Detail photos
What this specification means in practice
TN glass is the cost-efficient choice with the fastest response. Contrast and colour shift once you move off the specified viewing direction, so it fits devices with a fixed operator position.
220 cd/m² suits indoor instruments and panel HMIs. If the device will sit outdoors or under direct light, ask us for the high-brightness version of this glass instead.
Operating range -20°C to +70°C covers unheated cabinets, outdoor enclosures and cold-chain equipment. Standard commercial panels stop at 0 °C and go dark or slow in the cold.
Touch is optional on this module. We bond capacitive or resistive panels to the same glass, so you can start without touch and add it on a later revision.
Ordering and customisation
This model ships as a bare module by default. We commonly modify the FPC length and connector, change the backlight current, add a capacitive or resistive touch panel, or bond cover glass with your printing. Tell us the enclosure opening and the mounting method and we will confirm what can stay standard and what needs tooling.
Typical applications
Instrumentation & Metering
Power, gas and water meters that must run for years on a battery and stay readable in daylight.
Industrial Automation & HMI
Simple machine readouts where colour adds cost but no information.
How a customised order runs
Send the requirement
Size, resolution, interface, brightness, operating temperature, touch or no touch, and the annual quantity. A photo or drawing of the enclosure opening helps more than a long description.
We confirm feasibility and quote
You get a specific model number or a modification plan, with tooling cost and lead time stated separately from the unit price. Usually within one working day.
Sample and approval
Samples in 10-15 days from stock glass; custom glass or a new FPC adds tooling time. You approve dimensions, display quality and interface timing before mass production starts.
Production and shipment
10-20 days after specification freeze. Anti-static bag + foam tray + export carton, shipped DHL / FedEx / UPS express or by your forwarder. We keep the approved sample as the reference for every repeat order.
Related models
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Questions about this model
What is the minimum order quantity for the JM12864G?
Samples are 5 pcs. Production MOQ is 100 pcs for this catalogue model and 1,000 pcs when the FPC, backlight or glass is modified.
How long is the lead time?
10-20 days for production quantities, 10-15 days for samples from stock glass. Custom tooling is quoted separately and confirmed in writing first.
Can this module be customised?
Yes - FPC length and pin order, connector type, backlight brightness and colour temperature, cover glass, touch panel and bonding method. See what is changeable.
Do you provide a datasheet and drawing?
Yes. Email hyd@szjunxian.com with the model number and we send the full datasheet, 2D drawing and, where relevant, the initial sample report.
Which interface should I choose for my board?
It depends on your host processor and target resolution. Our interface selection guide compares MCU, SPI, RGB, LVDS and MIPI by pin count, resolution ceiling and MCU load.
Packaging, shipping and trade terms
Packaging is anti-static bag + foam tray + export carton, shipped by DHL / FedEx / UPS express, air freight, sea freight. Trade terms EXW, FOB Shenzhen, CIF, payment T/T, L/C, PayPal.
Need this module with different parameters?
Most orders start from a catalogue model and change two or three parameters. Send us the differences you need and we will confirm feasibility, tooling and price.