Traditional 4-color ePaper goes dull the moment the lights go down. The GDEY029F52-FL03 changes that — a parallel light-guide front-light stack engineered specifically for red / yellow / black / white panels. Colors stay saturated, whites stay clean, and the whole screen lights up evenly with just 4 LEDs.
Lighting a 4-color ePaper is far harder than lighting a monochrome one. The red and yellow color layers absorb and scatter far more light, so a generic front light quickly washes them out. We re-tuned the entire optical stack of the GDEY029F52-FL03 around those four pigments.
| SKU Option | What's Included | Best For |
|---|---|---|
| FL03 Only | GDEY029F52-FL03 4-Color Front-Lit EPD | Customers with existing driver hardware |
| + Adapter Board | EPD + SPI Adapter Board | Own MCU / Raspberry Pi / ESP32 |
| + ESP32-L Starter | EPD + ESP32-L(FTS02) Demo Kit | Beginners & rapid prototyping |
| + ESP32-M1 All-in-One New | EPD + ESP32-M1 Driver Board | ★ Best Advanced devs, commercial & battery-powered projects |
Front Light & Touch ESP32-FTS02
Starter ESP32-L Starter
Advanced ESP32-M1 All-in-One
| Part Number | GDEY029F52-FL03 | Driver IC | JD79661 |
| Type | Dot Matrix | Color | Black / White / Red / Yellow |
| Size | 2.9″ | Resolution | 296 × 128 |
| PPI | 112 | Interface | SPI |
| Outline (mm) | 79.00 × 36.70 × 1.65 | Active Area (mm) | 66.896 × 29.056 |
| Pixel Pitch (mm) | 0.226 × 0.227 | Operating Temp | 0℃ ~ 40℃ |
| Storage Temp | -25℃ ~ 70℃ | Full Refresh | 20 s |
| Fast Refresh | 12 s | Refresh Power | 12.87 mW |
| Standby Power | 0.003 mW | Front-Light Connector | 6-Pin FPC · 0.5 mm pitch |
| Front-Light LEDs | 4 | Front-Light Circuit | Parallel |
| Front-Light Voltage | 2.8 V ~ 3.3 V | Front-Light Current | ≤ 60 mA |
We offer complete support — from component selection to custom optical bonding,
front-light tuning and driver design. Bulk orders and OEM projects are welcome.
📧 buyepaper@good-display.com · 🌐 www.good-display.com
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2.9″ 4-Color EPD — GDEY029F52 
2.9″ Monochrome EPD — GDEY029T94 
2.9″ Front-Light EPD — GDEY029T94-FL03 
2.9″ Front-Light & Touch — GDEY029T94-FT01 
