1. Technical Principles
Micro OLED is a micro display device based on single-crystal silicon semiconductors, integrating millions of transistors to form a CMOS driving circuit.
OLED organic materials are deposited on the CMOS driving circuit to form light-emitting diodes, achieving high resolution and small-sized displays.
2. Significant Advantages
High Pixel Density: With pixel sizes reaching single-digit micrometers, Micro OLED can achieve higher resolution on screens of the same size.
Compact and Lightweight: Utilizing single-crystal silicon wafers as the backplane makes the display more compact and lightweight.
Low Power Consumption: It is self-emissive and highly efficient, resulting in lower power consumption.
Ideal for AR and VR Devices: Its characteristics make it particularly suitable for near-eye display devices such as AR and VR wearable displays.
3. Technical Details
Micro OLED combines mature CMOS integrated circuit technology with OLED technology, using processes such as photolithography, CMP, and vacuum deposition technology.
Under high-temperature low-vacuum conditions, OLED is deposited onto the single-crystal silicon substrate to create the Micro OLED light source module.
The device structure includes two parts: the driving backplane and the OLED device, with the driving backplane made using standard CMOS processes on a single-crystal silicon substrate.
4. Manufacturing Process
The manufacturing process mainly includes four stages: silicon-based IC design and manufacturing, OLED light-emitting unit fabrication, thin film encapsulation layer production, and device strength protection.
Silicon-based IC design and manufacturing involve the design and fabrication of integrated circuits, handled by IC design teams and foundries respectively.
5. Application Scenarios
Due to its high resolution, compact size, lightweight, and low power consumption, Micro OLED is particularly suitable for AR and VR wearable display devices.
It is rumored that Apple Glass, Apple's AR glasses, may adopt this technology.
6. Comparison with Other Technologies
Compared to traditional PMOLED and AMOLED display technologies, Micro OLED has higher pixel density and fineness.
Compared to Micro LED technology, Micro OLED excels in contrast but has relatively lower brightness.
In summary, Micro OLED screen technology, with its significant advantages of high resolution, compact size, lightweight, and low power consumption, has broad application prospects in the field of AR, VR, and other wearable display devices.
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