The world's first Mini LED commercial display standard is released, filling the gap in the industry

Recently, the Shenzhen Lighting and Display Engineering Industry Association released the group standard for "Mini LED Indoor Commercial Display". The standard number is T/SLDA 007-2022. The release date is November 15, 2022, and it will be officially implemented from November 15, 2022. It is worth noting that Zhaochi Semiconductor, as the main drafting unit, participated in the preparation of the "Mini LED Indoor Commercial Display" group standard.

In 2020, the Shenzhen Lighting and Display Engineering Industry Association took the lead in organizing 55 leading companies to release T/SLDA 01-2020 "General Technical Specifications for Mini LED Commercial Displays", which is the world's first Mini LED commercial display standard, filling a gap in the industry. On the occasion of the development of the group standard "Mini LED Indoor Commercial Display", we summarized the development experience and technical achievements of Mini LED displays in recent years. Based on the main content of T/SLDA 01-2020 (also revised to T/SLDA 01-2022), from the perspective of advancement and high quality, and based on stricter than national standards and no lower than similar standards, various requirements for Mini LED indoor commercial displays were developed, setting a benchmark for product technology innovation and improving product quality levels.

As a standard-setting participant, Zhaochi Semiconductor actively guides the industry towards standardization and standardization, while strengthening the "hard constraints" of standards.Product shipments are highly guaranteed. The company's currently mass-produced full-color Mini RGB products can provide the market with customized technical solutions and high-quality product services.

01 Highlight 1: Innovative design to achieve better product stability

The chip fully optimizes the design structure of each layer, which greatly improves the uniformity of chip current expansion, further improves the coating of the metal film layer, enhances the solderability of the electrode metal, significantly improves chip stability, and provides strong technical support for high-quality and high-stability packaging forms and application fields.

02 Highlight 2: Equipment upgrade to enable display of wavelength concentration

Using the latest MOCVD equipment Prismo UniMa, it adopts partitioned temperature control technology to ensure that the entire temperature field is flat during epitaxial growth. At the same time, a series of strain control technologies such as MO source and air flow uniformity are used to improve the wavelength uniformity of LED epitaxial wafers. According to data, it can simultaneously meet the needs of Micro-LED display.

03 Highlight 3: Salt spray is "resistant" and breaks the shackles of quality

In response to the "problem of metal migration of PN pad electrodes", an electrode structure resistant to electrochemical corrosion has been developed to reduce the dead light phenomenon; Aodic-protection, High EMF, ultra-dense passivation film, hydrophobic passivation film technology has been developed, as well as through repeated experimental tests, the product quality has been highly ""Love".

04 Highlight 4: Lift the "group chat" mode, red light chip fills the gap

GaAs-based Mini LED chips are one of the most scarce chips in the market. Its technical difficulties have stopped many manufacturers from making progress. When making red mini chips, they first need to transfer the substrate and epitaxially transfer the grown wafer to the transparent substrate material. Zhaochi Semiconductor masters the key bonding of red mini chips. technology, developed its own unique Mini chip technology, breaking the industry monopoly and the situation of bundling shipments with blue and green Mini chips. The traditional vertical positive polarity (AS chip), vertical reverse polarity (RS chip), and indoor high-end display flip chip (TS chip) have been fully mass-produced.

Zhaochi Semiconductor’s Mini RGB display, small-pitch display, and outdoor display products have become excellent LED display Mini chip partners for well-known domestic and foreign customers with their superior application solutions. Zhaochi Semiconductor will continue to provide high-quality support for the development of the new display industry.