
3.5 Inch LCD display typically has the following features:
1. Display Specifications:
- Screen Size:5 inches (measured diagonally)
- Resolution:Common resolutions include:
- 320×240 pixels (QVGA)
- 480×320 pixels (HVGA)
- 800×480 pixels (WVGA) (higher-end models)
- Aspect Ratio:Usually 4:3 or 16:9
- Pixel Density:Varies depending on resolution
- Brightness:Typically 200-500 nits (depends on model)
2. Display Type & Technology:
- LCD Type:
- TFT (Thin-Film Transistor) LCD– Common and cost-effective
- IPS (In-Plane Switching) LCD– Better viewing angles and color accuracy
- Resistive or Capacitive Touchscreen– Touch support may vary
- Backlight:LED-based for lower power consumption
3. Touchscreen (Optional):
- Resistive Touchscreen:Works with a stylus or finger; lower touch sensitivity
- Capacitive Touchscreen:More responsive, supports multi-touch gestures
4. Interface & Connectivity:
- Interface Types:
- SPI (Serial Peripheral Interface)
- RGB (Parallel Interface)
- HDMI (for Raspberry Pi and other devices)
- MIPI DSI (for high-speed data transfer)
- Power Consumption:Typically low, around 1W to 3W
A 3.5-inch LCD display is commonly used in various applications due to its compact size, low power consumption, and sufficient resolution for small-scale visual interfaces. Here are some of its key applications:
1. Embedded Systems & Development Boards
- Raspberry Pi Display:Used for small GUI applications, dashboards, and portable projects.
- Arduino Projects:Useful for DIY electronics and IoT applications.
- ESP32/STM32 Displays:For displaying real-time data in embedded systems.
2. Handheld Devices
- Portable Gaming Consoles:Used in retro handheld gaming devices.
- Medical Devices:Displaying vital signs in compact medical monitors.
- Digital Meters & Measurement Tools:For voltmeters, oscilloscopes, and industrial testing devices.
3. Automotive & Industrial Applications
- Car Infotainment & Dashboards:Used in car multimedia systems or rearview camera displays.
- Industrial Control Panels:Small HMIs (Human-Machine Interfaces) for controlling machinery.
- Security Systems:CCTV display screens for monitoring.
4. Consumer Electronics
- Smart Home Displays:Used in thermostats, smart home control panels, and intercom systems.
- MP3/MP4 Players & Digital Media Devices:For video playback and touch navigation.
- E-Book Readers & Compact Digital Assistants:Small-size interface for reading or navigation.
5. Wearable & Portable Technologies
- Smartwatches & Fitness Trackers:Small, high-resolution LCDs for health monitoring.
- Handheld GPS Devices:Used in hiking, navigation, and geolocation devices.

3.5 Inch LCD Display product links for reference:
https://www.youritech.com/size/3-5-inch/