0.38″ Micro Display 1280×720 HD Glasses Birdbaths Optical AR
0.38" Micro Display 1280x720 HD for AR Glasses: Birdbath Optical Module Overview
This article delves into the specifications, technology, and potential applications of a 0.38-inch FLCOS (Ferroelectric Liquid Crystal on Silicon) micro display integrated into a Birdbath optical module. This advanced optical system is designed for AR/VR applications, providing high-resolution imaging, excellent luminance, and precise optical performance. The module consists of a micro LCOS display panel, optical lenses, and an HDMI driver board, delivering an immersive visual experience with 1280×720 HD resolution and a 50° field of view.
Key Features of the Birdbath Optical Module
High-Resolution Display Technology
The 0.38-inch micro LCOS display features a resolution of 1280×720 pixels, ensuring sharp image quality. LCOS technology is well-suited for AR/VR applications due to its superior contrast ratio and light efficiency. The integration of FLCOS enhances response time and reduces motion blur, making it ideal for high-speed visual rendering.
Optical Performance and Field of View
The Birdbath optical module offers a 50° field of view (FOV), balancing immersion with a compact design. This optical approach ensures minimal distortion and high modulation transfer function (MTF), which is essential for maintaining image clarity across the entire field of vision.
Light Efficiency and Luminance Control
This optical module supports a maximum luminance of 200 cd/m², with adjustable light efficiency around 20%. The high contrast ratio of 100,000:1 enables deeper blacks and more vibrant colors, improving overall image quality in augmented reality environments.
Power Efficiency and Frame Rate
With a power consumption of approximately 820mW at 1500 nits and 1280mW at 3000 nits, the display is optimized for energy efficiency. It operates at a 60Hz frame rate, ensuring smooth visuals suitable for real-time AR applications.
Specifications Overview
| Parameter | Specification |
|---|---|
| Display Type | 0.38-inch FLCOS Micro Display |
| Resolution | 1280×720 HD |
| Technology | Birdbath Optical System |
| Interface | LVDS |
| Luminance | Max 200 cd/m² |
| Uniformity | 100,000:1 Contrast Ratio |
| Power Consumption | 820mW @1500nits / 1280mW @3000nits |
| Frame Rate | 60Hz |
| Field of View (FOV) | 50° |
| TV Distortion | ≤0.7% |
| Modulation Transfer Function (MTF) | ≥0.23 @2PPL |
| Light Efficiency | ~20% (Adjustable) |
| Transmissivity | ~20% (Adjustable) |
| Interpupillary Distance (IPD) | 63mm (Recommended) |
| Eye Box @ Eye Relief | 8*8mm @14mm |
| Connector Pins | 33 Pins |
| Monocular Weight | TBD |
Applications in AR/VR Systems
Augmented Reality (AR) Smart Glasses
This FLCOS-based micro display module is ideal for AR smart glasses, offering high clarity and efficient power usage. The 50° FOV ensures a comfortable viewing experience while maintaining compact form factors.
Virtual Reality (VR) Headsets
For VR applications, this module delivers low latency and high contrast, making it suitable for gaming, simulation, and immersive virtual experiences.
Professional and Industrial Uses
The high precision and efficiency of this module make it suitable for industrial applications such as remote assistance, medical visualization, and heads-up displays (HUDs) in various sectors.
Conclusion
The 0.38-inch FLCOS micro display integrated into a Birdbath optical module offers a high-resolution, energy-efficient, and optically precise solution for AR/VR applications. With its optimized FOV, excellent contrast, and smooth frame rate, this module is a valuable component in next-generation augmented and virtual reality systems.
Drawing
Pin Description
| No | Name | I/O | Power Supply | Function |
|---|---|---|---|---|
| 1 | GND | NA | NA | Ground |
| 2 | SDA | IO | VIO_Serial | Serial Interface Data I/O |
| 3 | SCL | I | VIO_Serial | Serial Interface Clock Input |
| 4 | DATA 0 | I | 1.8V ~ 3.3V | Y0 |
| 5 | DATA 1 | I | 1.8V ~ 3.3V | Y1/Cb1/Cr1 |
| 6 | DATA 2 | I | 1.8V ~ 3.3V | Y2/Cb2/Cr2 |
| 7 | DATA 3 | I | 1.8V ~ 3.3V | Y3/Cb3/Cr3 |
| 8 | DATA 4 | I | 1.8V ~ 3.3V | Y4/Cb4/Cr4 |
| 9 | DATA 5 | I | 1.8V ~ 3.3V | Y5/Cb5/Cr5 |
| 10 | DATA 6 | I | 1.8V ~ 3.3V | Y6/Cb6/Cr6 |
| 11 | DATA 7 | I | 1.8V ~ 3.3V | Y7/Cb7/Cr7 |
| 12 | DATA 8 | I | 1.8V ~ 3.3V | Cb0/Cr0 |
| 13 | DATA 9 | I | 1.8V ~ 3.3V | Cb1/Cr1 |
| 14 | DATA 10 | I | 1.8V ~ 3.3V | Cb2/Cr2 |
| 15 | DATA 11 | I | 1.8V ~ 3.3V | Cb3/Cr3 |
| 16 | DATA 12 | I | 1.8V ~ 3.3V | Cb4/Cr4 |
| 17 | DATA 13 | I | 1.8V ~ 3.3V | Cb5/Cr5 |
| 18 | DATA 14 | I | 1.8V ~ 3.3V | Cb6/Cr6 |
| 19 | DATA 15 | I | 1.8V ~ 3.3V | Cb7/Cr7 |
| 20 | NRESET(*1) | I | 1.8V ~ 3.3V | Reset (Lo Active) |
| 21,22 | AVCC | NA | NA | Panel Analog / LED Power Supply (+5V) |
| 23 | VSYNC | I | 1.8V ~ 3.3V | Vertical Synch Signal (If non-use : GND) |
| 24 | HSYNC | I | 1.8V ~ 3.3V | Horizontal Synch Signal (If non-use : GND) |
| 25 | VIO_Serial | NA | NA | Serial Interface I/O Power Supply |
| 26,27,28 | VCC(*3) | NA | NA | Panel Core Power Supply (+1.8V) |
| 29 | VCCX | NA | NA | Panel / EEPROM Power Supply (+3.3V) |
| 30 | CLOCK | I | 1.8V ~ 3.3V | Video Data Clock |
| 31,32,33 | GND | NA | NA | Ground |
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Frequently Asked Question
The display has a resolution of 1280×720 HD, providing sharp and high-quality visuals for AR/VR applications.
The Birdbath optical module is a binocular optical system that integrates a micro LCOS display, optical lenses, and an HDMI driver board to create immersive AR/VR experiences.
FLCOS technology offers fast response times, high contrast ratios, and low power consumption, making it ideal for real-time visual rendering in AR/VR applications.
The module provides a 50° FOV, ensuring a balanced immersive experience while maintaining a compact and efficient design.
The module supports a maximum luminance of 200 cd/m² with adjustable light efficiency of ~20%, offering a high-contrast viewing experience.
It consumes approximately 820mW at 1500 nits and 1280mW at 3000 nits, optimizing energy efficiency for extended use.
The MTF (≥0.23 @2PPL) ensures that the display maintains high image clarity and resolution across the entire field of vision.
Yes, the module is designed for both AR smart glasses and VR headsets, offering versatility for different applications.
The module is useful in gaming, medical visualization, remote assistance, heads-up displays (HUDs), and other industrial applications.
Yes,the microdisplay module lightweight and comfortable use in AR/VR headsets for prolonged periods.
