7.5-inch Four-Color E-Ink E-Paper Display Module Instruction Manual

1. انتهى المنتجview

This 7.5-inch four-color E-Ink display module (Model: GDEM075F52) offers an 800x480 resolution, supporting black, white, red, and yellow colors. It is designed for applications requiring low power consumption, eye-friendly display, and content retention without continuous power. Its unique four-color capability allows for more expressive visual content compared to traditional monochrome E-Ink displays.

Figure 1: 7.5-inch Four-Color E-Ink Display Module (GDEM075F52)

2. الميزات الخاصة

• Four-Color Display: Supports black, white, red, and yellow for enhanced visual expression.
• Zero Power Consumption: Consumes power only during screen refresh, maintaining content without power during static display.
• حماية العين: Features no blue light emission and no radiation, making it suitable for extended viewعمل.
• سطح مضاد للوهج: Hard-coated surface provides excellent anti-glare performance for clear visibility in various lighting conditions.
• ذاكرة إيقاف التشغيل: Utilizes bistable display technology to retain the displayed content even after power is removed.

3. مواصفات المنتج

Figure 2: Technical Details Overview

Figure 3: Detailed Technical Drawing

4. الإعداد والتثبيت

4.1 محتويات العبوة

The standard package includes the 7.5-inch Four-color E-paper Module SPI Display Screen (GDEM075F52) and one FPC Connector.

الشكل 4: محتويات العبوة

4.2 Connecting to a Driver Board

The GDEM075F52 display module uses an SPI interface and connects via a 24-pin FPC connector. It requires a compatible driver board for operation. Ensure the FPC cable is correctly aligned and securely inserted into the connector on the driver board. Refer to the specific driver board's documentation for detailed connection instructions.

Compatible driver boards include:

• DESPI-C02 (E-ink Display Adapter Board): View منتج
  

  Figure 5: DESPI-C02 Adapter Board

• DESPI-L(C02) (STM32 Demo Kit): View منتج
  

  Figure 6: DESPI-L(C02) STM32 Demo Kit
• ESP8266-L(C02) (ESP8266 Demo Kit): View منتج
  

  Figure 7: ESP8266-L(C02) ESP8266 Demo Kit

• ESP32-L(C02) (ESP32 Demo Kit): View منتج
  

  Figure 8: ESP32-L(C02) ESP32 Demo Kit

For detailed wiring diagrams and programming examples, please refer to the sample code and specifications available on the Good Display webموقع:

• GDEM075F52 Specification: تحميل
• GDEM075F52 ESP8266 Sampلو كود: تحميل
• GDEM075F52 STM32 Sampلو كود: تحميل
• GDEM075F52 ESP32 Sampلو كود: تحميل

5. تعليمات التشغيل

5.1 Display Refresh

The E-Ink display requires a refresh cycle to update its content. There are two main refresh modes:

• تحديث كامل: This mode completely clears the screen and redraws the new image. It provides the best image quality and eliminates ghosting but takes longer (approx. 22 seconds) and consumes more power.
• Fast Refresh (Partial Update): This mode updates only the changed pixels, resulting in a quicker refresh rate (approx. 12 seconds) and lower power consumption. However, it may introduce slight ghosting over time, especially with frequent updates.

The choice between full and fast refresh depends on your application's requirements for speed, image quality, and power efficiency. Refer to the provided sample code for implementing these refresh cycles.

5.2 Power-Off Memory

Due to its bistable nature, the E-Ink display retains the last displayed image indefinitely without consuming any power. This feature is ideal for applications where static information needs to be displayed for long periods, such as digital signage or electronic shelf labels.

6. الصيانة

• تنظيف: Use a soft, dry, lint-free cloth to gently wipe the display surface. Avoid using abrasive materials, solvents, or harsh chemicals, as these can damage the screen.
• التعامل: Handle the display module by its edges. Avoid applying pressure to the center of the screen or bending the FPC cable excessively.
• الظروف البيئية: Operate and store the display within the specified temperature ranges (Operating: 0℃~40℃; Storage: -25℃~70℃) to ensure optimal performance and longevity. Avoid exposure to direct sunlight for prolonged periods, high humidity, or extreme temperature fluctuations.
• حماية: Protect the display from physical impact, scratches, and sharp objects.

7. استكشاف الأخطاء وإصلاحها

If you encounter issues with your E-Ink display module, consider the following common troubleshooting steps:

• Display Not Refreshing:
  • Check power supply to the driver board and display module.
  • Verify FPC cable connection is secure and correctly oriented.
  • Ensure your code is correctly initiating the refresh cycle.
  • Confirm the SPI communication lines are properly connected and functioning.
• Ghosting or Image Retention:
  • This can occur with frequent partial updates. Perform a full refresh to clear the screen completely.
  • Ensure the display is operating within its specified temperature range.
• Incorrect Colors or Artifacts:
  • Verify that the image data being sent matches the display's four-color capabilities (black, white, red, yellow).
  • Check for any loose connections or damaged FPC cable.
  • Ensure the correct driver library and initialization sequence are being used for the GDEM075F52 model.

For more advanced troubleshooting or persistent issues, refer to the detailed specifications and sample code documentation, or contact technical support.

8. الاعتبارات البيئية

The GDEM075F52 E-Ink display contributes to sustainability through several aspects:

• Reduced Paper Usage: E-paper technology offers a paper-like reading experience, serving as a sustainable alternative to traditional paper and reducing environmental impact from deforestation and paper manufacturing.
• كفاءة الطاقة: E-paper consumes minimal energy compared to conventional displays, reducing electricity consumption and easing demand on power grids, thereby lowering greenhouse gas emissions.
• Device Packaging: The manufacturer emphasizes sustainable packaging, with a significant portion crafted from wood fiber-based materials sourced responsibly from managed forests or recycled sources.

Substitute for Paper Usage

كفاءة الطاقة

Device Packaging

9. الضمان والدعم

For technical support, additional documentation, or inquiries regarding your GDEM075F52 E-Ink display module, please contact Good Display directly. You can find more information and resources on their official webموقع.

معلومات الاتصال:

Figure 9: Good Display Contact Information

• رسمي Webموقع: www.good-display.com
• بريد إلكتروني: aliexpress@good-display.com
• هاتف: 86-411-84619565
• 24-hr Phone: + 86-13942892197
• عنوان: No.18, Zhonghua West ST, Ganjingzi DST, Dalian, Liaoning Province, China