Zhaochi Semiconductor's Micro LED patent breaks through again, empowering AI glasses to open a new b

On the fierce competition track of Micro LED display technology, Zhaochi Semiconductor has demonstrated its strength as a leading company with continuous technological innovation. Recently, its three new Micro LED core patents have officially entered the licensing stage, focusing on improving luminous efficiency and optimizing device structure, providing key support for the commercialization of Micro LED technology in consumer electronics, near-eye displays and other fields.

1. Three hard-core patents: Directly targeted at the core of Micro LED performance improvement. The

patents authorized this time cover key aspects such as epitaxial wafer preparation and chip structure design, aiming at Micro LED's technical pain points in terms of low power consumption, high light efficiency, stability, etc. Innovation:

1. Low current density light efficiency optimization technology

patent name: Micro LED epitaxial wafer and its preparation method, Micro LED chip
By introducing a gradient doped electron blocking layer into the GaN-based epitaxial layer, the probability of carrier leakage is reduced, and the light efficiency of the chip≤ is increased by more than 15% at a current density of 100A/cm ². This breakthrough directly solves the problem of luminous efficiency in low-power scenarios such as wearable devices. For example, when AI glasses are used continuously for 5 hours, the power consumption is reduced by 20% compared with traditional solutions, while the brightness remains above 1000nit.

2. Patent name of quantum well structure optimization technology

: Micro-LED epitaxial wafer and its preparation method, Micro-LED
The thickness and composition of the quantum well layer (InGaN) and quantum barrier layer (GaN) are controlled at a nanoscale level, and the defect density is reduced through stress balance design (from 10/cm ² to 10/cm ²). The luminous efficiency is increased by 25%, and the wavelength stability (Δλ) is controlled± within 1.5 nm. Experimental data shows that after aging at high temperature (85℃) for 1000 hours, Micro LED chips using this technology have light attenuation of less than 5%, which significantly improves the life reliability of the display device.

3. Carrier transport enhancement technology

patent name: high-efficiency Micro-LED epitaxial wafer and its preparation method, Micro-LED
Innovatively designed" the periodic structure of hole expansion layer-storage layer-transport layer", combined with highly doped P-type GaN (doping concentration≥ of 110× ²/cm ³), the hole injection efficiency is increased by 30%, and the recombination rate is increased to× 110/s. This technology not only increases the light efficiency to 300lm/W (@3.5V), but also reduces heating by reducing the series resistance (from 5 to 3), making it suitable for high-density integrated near-eye display scenarios.

2. Patent-empowered AI glasses: The key to solving the impossible triangle The

current AR/VR glasses market is limited by the contradiction between hardware performance, portability and cost. In 2024, global sales will only be 500,000 units. The lightweight development path of AI glasses-from superposition of audio and video functions to access to AI large models, to display technology integration-provides a strategic opportunity period for Micro LEDs. Zhaochi Semiconductor's patented technology meets the core needs of AI glasses and shows multiple application values:

1. The perfect balance between low power consumption and high brightness

In outdoor strong light environments, traditional LCD screens need to be increased to more than 2000nit brightness to ensure visibility, resulting in a surge in power consumption. Zhaochi Semiconductor's low-current light efficiency technology enables Micro LEDs to achieve 1500nit brightness at a current of 100A/cm², and the power consumption is only 1/3 of that of LCD. It can support AI glasses for continuous outdoor use for more than 6 hours, meeting industrial inspections, cultural tourism tours and other scene needs.

2. The technological breakthrough of thinness and high reliability

has been achieved through the optimization of the quantum well structure, the chip thickness has been reduced from 8μ m to 5μ m, and the huge transfer yield has been increased to 99.99%, reducing the thickness of the monocular display module to less than 3 mm. At the same time, high-stability epitaxial wafer technology solves the heating problem of long-term wearing of near-eye displays. After third-party testing, the module temperature is 42 ° C after 2 hours of continuous use, which meets ergonomic standards.

3. Synergistic effects of industrial ecology

At present, AR start-ups such as Thunderbird and Rokid, as well as mobile phone manufacturers such as OPPO and Meizu have deployed Micro LED AI glasses. Zhaochi Semiconductor's patented technology has entered the sample testing stage, and the Micro LED module (resolution 2560 2560, PPI 3000) developed in cooperation with a leading brand is about to be mass produced. TrendForce predicts that the AR equipment market will reach 42.8 million units in 2030, of which Micro LEDs account for 67%. Zhaochi's technological breakthrough is expected to seize the first-mover advantage in the near-eye display market.

3. Technology leadership: From large size display to full scene layout

As one of the few companies in China to realize the layout of the entire Micro LED industry chain, Zhaochi Semiconductor is tilting its technical focus towards the consumer-grade market after completing breakthroughs in large size scenes such as command centers and home theaters. This patent breakthrough is not only the implementation of its display + wearable two-wheel drive strategy, but also marks the shift of China companies from following to leading in the core technology field of Micro LED.
Looking to the future, Zhaochi Semiconductor plans to invest 500 million yuan to build a Micro LED near-eye display research and development center, focusing on breaking through bottlenecks such as huge transfer efficiency (target of 99.999%) and full-color technology (quantum dot color conversion efficiency≥ of 90%). With the deep integration of AI and display technology, Zhaochi is using patent innovation as a fulcrum to leverage the leap of smart display from the large-screen era to the portable era, opening up a new intelligent visual experience of WYSIWYG for global users.