User Manual

1. Introduction

This manual provides essential information for the Gesight 2.04 Inch OLED Display Module, designed for applications such as smart watches. This display features a 368x448 resolution, QSPI interface, and AMOLED technology, offering superior visual performance.

OLED (Organic Light-Emitting Diode) displays are categorized into Passive Matrix (PMOLED) and Active Matrix (AMOLED). While PMOLEDs have a simpler structure, their application in high-resolution large screens is limited by control lines. AMOLED technology, utilized in this module, employs a drive circuit for each light-emitting anode, significantly reducing control lines. This results in low power consumption, high resolution, and fast response times, making AMOLED the preferred choice for modern displays.

For high-resolution AMOLEDs, the driving circuit size is minimized, demanding sophisticated electrical performance. This display leverages Low-Temperature Polysilicon (LTPS) technology, which converts amorphous silicon into polysilicon using excimer laser annealing. LTPS offers higher carrier mobility and lower defect density, ensuring excellent electrical properties even in compact devices.

2. Specifications

The following table details the technical specifications of the 2.04 Inch OLED Display Module:

3. Setup and Connection

This section provides guidance for connecting the 2.04 Inch OLED Display Module to your host system. Proper connection is crucial for optimal performance and to prevent damage.

3.1 Physical Inspection

Before connecting, carefully inspect the display module for any physical damage. Ensure the flexible printed circuit (FPC) and connectors are intact.

3.2 Electrical Connection

The display module uses a QSPI interface. Refer to the detailed dimensional drawing and pinout diagram below for correct electrical connections. Ensure all pins are correctly aligned and securely connected to avoid short circuits or damage to the display or host device.

For detailed datasheets, IC datasheets, and initial code, please contact Gesight Display Store. These documents are essential for software development and precise integration.

4. Operation

Once properly connected and powered, the OLED display will render images and text based on the signals received via its QSPI interface. The AMOLED technology ensures a high contrast ratio and wide color gamut, providing sharp, vivid images and consistent display quality from any viewing angle.

4.1 Readability

This OLED display is designed for excellent readability, even under direct sunlight, making it suitable for outdoor applications.

4.2 Touch Functionality

If your module includes touch functionality (indicated by the CHSC6417 Touch IC), ensure your software drivers are correctly configured to interpret touch inputs.

5. Care and Maintenance

To ensure the longevity and optimal performance of your OLED display module, follow these maintenance guidelines:

• Cleaning: Use a soft, lint-free cloth slightly dampened with distilled water or a specialized screen cleaner. Avoid harsh chemicals, abrasive materials, or excessive pressure.
• Handling: Always handle the display by its edges. Avoid touching the display surface or the FPC directly to prevent damage from oils or static discharge.
• Storage: Store the display in a cool, dry environment, away from direct sunlight and extreme temperatures. Use anti-static packaging if available.
• Environmental Conditions: While the display has a wide operating temperature range (-40°C to 70°C), prolonged exposure to temperatures outside this range or high humidity can affect performance and lifespan.

6. Troubleshooting

This section addresses common issues you might encounter with the OLED display module.

6.1 Display Not Lighting Up

• Power Supply: Verify that the display is receiving the correct voltage and current as specified in the datasheet.
• Connections: Double-check all electrical connections, especially the QSPI interface and power lines, against the pinout diagram (Figure 5). Ensure no pins are bent or shorted.
• Software Initialization: Confirm that the display driver IC (CH13613-35XKA_R0) is correctly initialized by your host controller's software. Refer to the initial code and IC datasheet.

6.2 Incorrect or Distorted Display

• Data Integrity: Ensure that the data being sent over the QSPI interface is correct and free from errors.
• Timing: Check the timing parameters of the QSPI communication against the display's specifications.
• Resolution Mismatch: Verify that your host system's output resolution matches the display's native 368x448 resolution.

6.3 Touch Functionality Issues (if applicable)

• Touch IC Driver: Ensure the touch IC (CHSC6417) has the correct software driver installed and initialized.
• Calibration: If touch response is inaccurate, recalibration might be necessary.
• Physical Obstruction: Check for any physical obstructions or debris on the touch surface.

6.4 Dead Pixels or Bright/Dark Dots

Gesight implements strict quality control to prevent such defects. If you observe any bright or dark dots on the screen, please contact support.

7. User Tips

• Testing Performance: To thoroughly test the quality and performance of the display, Gesight offers demo kits and H-DMI convert boards. These can aid in development and verification.
• Sample Orders: For clients purchasing 3 or more sample displays, Gesight may provide free connectors.

8. Frequently Asked Questions (FAQ)

Q: How can I get the full specification for the display?

A: Gesight will send the full specification, including datasheets and initial code, after an order is placed.

Q: What should I do if I receive a damaged part?

A: Contact Gesight immediately. We perform strict quality checks before shipping, but in rare cases of damage, a new part will be sent within 1-3 working days.

Q: What should I do if I receive the wrong part?

A: Please carefully read the product description to ensure you ordered the correct item. If the error is on our side, contact us, and Gesight will assist you in replacing it with the correct one.

Q: How long does it take to get a reply after sending an inquiry?

A: Gesight typically replies to inquiries within 24 hours.

9. Warranty and Support

Gesight is a high-tech company specializing in OLED and LCD displays, offering comprehensive support for its products. We are committed to providing excellent service and professional technical assistance.

For any technical inquiries, support, or warranty claims, please contact Gesight Display Store directly. Our service team is dedicated to assisting you with any issues or questions regarding your display module.