1.29 Inch OLED Display Module with 128x64 Resolution and 4-Wire SPI Interface
The E129LJ-W-C16-01 is a high-performance 1.29-inch OLED module featuring 128×64 resolution and 4-Wire SPI interface support. This monochrome white display delivers clear, sharp text and graphics with 110 Cd/m² typical brightness, 2000:1 dark room contrast, and all-direction viewing angles, ideal for diverse application scenarios.
Key Specifications
| Product |
1.29 Inch OLED Module |
Module Number |
E129LJ-W-C16-01 |
| Resolution |
128(H)×64(V) dots |
Display Color |
White (Monochrome) |
| Brightness |
90 Cd/m² (Min., Internal DC/DC), 120 Cd/m² (Min., External VCC), 110 Cd/m² (Typ.) |
Outline Dimensions |
32.42(W)×21.36(H)×1.427(T)mm |
| Viewing Direction |
All O'Clock |
Active Area |
21.74(W)×11.175(H)mm |
| Interface |
4-Wire SPI |
Operating Temperature |
-20 ~ +70 ℃ |
| Driver IC |
SSD1315 |
Storage Temperature |
-30 ~ +80 ℃ |
| IC Package Type |
COG (Chip on Glass) |
Drive Duty |
1/64 |
| Pixel Pitch |
0.23(W)×0.23(H)mm |
RoHS Compliance |
YES |
Product Highlights: 1.29-inch OLED, 128×64 resolution, 4-Wire SPI interface, SSD1315 driver, COG packaging, 2000:1 contrast ratio, wide temperature range (-20~70℃), RoHS compliant, 50,000 hours MTBF
Technical Features
- COG (Chip on Glass) packaging for compact size and high reliability, minimizing integration failures
- 4-Wire SPI interface for stable high-speed data transmission, compatible with mainstream MCUs
- Low power consumption: 160μA typical VDD current, 625μA typical VCC current
- Excellent optical performance: 2000:1 dark room contrast, natural white color (CIE x:0.25-0.33, y:0.27-0.35)
- Wide operating temperature range (-20℃ to +70℃) adapts to harsh industrial and outdoor environments
- Long service life: Up to 32,000 hours at 60 Cd/m² brightness, 10,000 hours at 120 Cd/m²
- RoHS compliant, meeting international environmental protection standards
- All-direction viewing angle for consistent display quality from any perspective
Electrical Specifications
Logic supply voltage (VDD): 1.65V to 3.5V
Display supply voltage (VCC): 7.2V to 16.5V at 25℃
SPI interface: Maximum clock frequency 10MHz (minimum clock cycle 100ns)
Input high voltage (VIN): 0.8×VDD; Input low voltage (VIL): ≤0.2×VDD
Output high voltage (VOH): ≥0.9×VDD; Output low voltage (VOL): ≤0.1×VDD
Pin Definition
| PIN |
Symbol |
Description |
| 1 |
C2P |
Charge pump capacitor pin; connect with C2N (PIN2) via capacitor |
| 2 |
C2N |
Charge pump capacitor pin; connect with C2P (PIN1) via capacitor |
| 3 |
C1P |
Charge pump capacitor pin; connect with C1N (PIN4) via capacitor |
| 4 |
C1N |
Charge pump capacitor pin; connect with C1P (PIN3) via capacitor |
| 5 |
VBAT |
Power supply for DC/DC converter circuit |
| 6 |
VSS |
Ground pin; must be connected to external ground |
| 7 |
VDD |
Power supply pin for core logic operation (1.65V~3.5V) |
| 8 |
CS |
Chip select pin (low level enable) |
| 9 |
RESET |
Reset signal input; pull LOW for initialization, keep HIGH during normal operation |
| 10 |
D/C |
Data/Command control pin connecting to MCU |
| 11 |
SCL |
Serial clock pin (SPI interface) |
| 12 |
SDA |
Serial data input/output pin (SPI interface) |
| 13 |
IREF |
Segment current reference pin; connect to VSS via resistor for current stabilization |
| 14 |
VCOMH |
COM signal deselected voltage level; connect to VSS via capacitor |
| 15 |
VCC |
Panel driving voltage supply pin; connect to VSS via capacitor when charge pump is enabled |
| 16 |
VSS |
Ground pin; must be connected to external ground |
Application Scenarios
- Industrial control equipment (PLC panels, sensor data monitors, compact controllers)
- Portable instruments (handheld meters, data loggers, portable detection devices)
- Smart sensor interfaces (environmental sensors, motion sensors, IoT devices)
- Consumer electronics (smart home controllers, portable gadgets, small POS machines)
- DIY electronics and hobby projects requiring reliable small-screen displays
Customization Options
- FPC Design: Flexible FPC layout and connector type adjustments to fit system integration
- Brightness Tuning: Customizable brightness levels (90~200 Cd/m²) based on application needs
- Polarizer Customization: Different polarizer types and thicknesses for specific viewing angle requirements
- Packaging Solution: Customized tray or vacuum packaging for safe transportation and storage
- Warranty Extension: Extended warranty options available for bulk orders
Handling Notes
Use proper electrostatic protection (anti-static bracelets, grounded tools) when handling. The polarizer is fragile--clean only with soft cloth soaked in petroleum IPA, avoid dry cloth or chemical solvents. Welding temperature: 320~350℃, welding time ≤10s to prevent FPC damage. Store in dark, anti-static containers at 23±5℃ and humidity ≤45±20%RH. Use modules within 6 months of receipt for best performance; recheck if stored over 12 months.
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