The virtual reality (VR) industry has garnered renewed attention in 2024, especially following the launch of Apple’s Vision Pro. This has propelled China’s XR market into a flurry of new product releases, with renowned brands such as Xiaopai Technology, DPVR, and PICO unveiling their upgraded VR headsets featuring Mini LED technology.
HongLiZhiHui has independently researched and designed Mini LED backlight modules since 2019. Collaborating with domestic and international brand clients, the company has mass-produced various VR backlight products. From March 2022 to the first half of 2024, HongLiZhiHui’s Mini LED-backlit VR display modules have shipped over 1.7 million units.
HongLiZhiHui’s Mini LED Backlit VR Display Modules Exceed 1.7 Million Shipments
As a subsidiary of the HongLiZhiHui Group, HongLi Display is committed to becoming a global leader in new LED display devices and services. Since 2019, the company has focused on the independent research and design of Mini LED backlight modules. In collaboration with domestic and international brand clients, HongLi Display has mass-produced a range of VR backlight products in various specifications, including 2.48″, 2.56″, 3.2″, and 3.59″. The cumulative shipment of Mini LED backlit VR display modules has surpassed 1.7 million units from March 2022 to the first half of 2024.
Behind this impressive VR project experience lies HongLi Display’s relentless pursuit of advanced technology and product quality. For Mini LED backlight source boards in consumer electronics, the company is enhancing display quality by focusing on design improvements, material selection, structural optimization, and process changes. These efforts aim to achieve industry-leading standards, particularly in the innovative packaging technology that significantly improves light efficiency.
In addition to VR backlight products, HongLiZhiHui has achieved full coverage in commercial display products. The company’s mainstay products, including backlights for VR, TVs, tablets, gaming laptops, automotive displays, and monitors, are now in continuous mass production, securing a foothold in the consumer electronics and automotive markets.
Currently, the mainstream packaging technologies for Mini LED displays are categorized into POB (Panel on Board) and COB (Chip on Board). Unlike POB, which encapsulates individual LED chips before transferring them to a substrate, COB adopts a more convenient method by directly transferring a large number of LED chips to the substrate and then using adhesive for packaging. According to a representative from HongLi Display’s backlight product team, the innovation of COB technology has opened new avenues for optimizing display performance. This includes using advanced grid spray adhesive technology, extensive adjustments to various process parameters, and establishing the optimal packaging structure, ultimately boosting BLU (Backlight Unit) brightness to 125% of its initial level.
The Advantages of Mini LED in VR Applications: Meeting Ultra-High Definition Requirements for VR Headsets
This year, among the numerous VR products released by domestic and international manufacturers, one ultra-high-definition VR headset utilizes HongLi’s Mini LED backlight technology. This headset features dual 8K displays, a refresh rate of up to 120Hz, and a color gamut of 100% NTSC. Mini LED technology allows for pixel-level local dimming, resulting in brighter whites, deeper blacks, and more vivid colors.
Early VR devices typically employed a 2K resolution, which could lead to noticeable screen-door effects. By 2021, most VR products featured 4K resolution. However, lower refresh rates often resulted in discomfort for users, such as dizziness (with refresh rates usually around 90Hz). Mini LED technology not only enhances the pixel density (PPI) of VR headsets but also significantly improves refresh rates through local dimming techniques, reducing latency and ghosting while ensuring real-time interactivity and precision. High refresh rates are crucial for minimizing dizziness and discomfort during VR use.
For Mini LED backlight products designed for VR applications, the company can achieve partitioned chip designs ranging from hundreds to thousands, allowing for precise regional control. This effectively alleviates screen-door effects, enhances contrast, refresh rates, and brightness, and, when combined with HDR functionality, better meets the ultra-high-definition visual requirements of VR headsets.
With technological advancements, decreasing costs, expanded applications, and a refined industrial chain, the prospects for Mini LED technology in the virtual reality industry are becoming increasingly promising.
HongLiZhiHui remains committed to the research and development of emerging industries and technologies, continually honing its technical and product capabilities. In the future, the company will further empower the Mini LED direct display and backlight sectors while actively developing and mass-producing Micro LED products to support the healthy and rapid growth of the virtual reality industry.
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