Brightness - Page 4

Earlier in January, Belgium-based MICLEDI announced that it raised 4.5 million Euro to develop next-generation MicroLED microdisplays for AR applications.

We had a short talk with MICLEDI's CEO, Sean Lord, who helped us understand a bit more about the company's technology and goals. MICLEDI is indeed focused entirely on the AR market, and so aims to provide display engines that will be extremely bright (over 10 million nits), efficient, and with a very small footprint. In addition costs are also important for the future consumer AR market.

Shanghai-based Micro-LED microdisplay developer JBD unveiled two new Micro-LED microdisplay prototypes. First up is the JBD5UM720P-G, a 0.31" 720p (1780x720, 5,000 PPI) display that features a typical brightness of 3 million nits (!). This is a monochrome green (530 nm) display.

The second display, the JBD25UMFHD-B is a higher density display, at 10,000 PPI it achieves a 2560x1440 resolution in the same 0.31" size. This is a monochrome blue (455 nm) display that has a brightness of 150,000 nits. The display's refresh rate is 360Hz.

Samsung Electronics announced that it now offers its large-area tiled "consumer" microLED "The wall Luxury" displays globally. The model number of the Wall Luxury is IW008R, and it is based on 0.84 mm microLED pixels offering a 120Hz refresh rate, a peak brightness of 2,000 nits and a maximum brightness of 250 nits.

The Wall Luxury is configurable and customizable to a variety of sizes and ratios from 73-inches in 2K definition, 146-inches in 4K, to 292-inches in 8K. Each Wall "Tile" is 806.4 x 453.6 x 72.2 mm (WxHxD) in size, with a resolution of 960x540.

US-based Lumiode has been developing MicroLED Microdisplays for many years, but the company has been very quiet and did not disclose much about its technology. We have recently met with Vikas Dhurka (VP Marketing) and Eddy Hsu (director of Display Systems) who explained and demonstrated the company's technology.

Lumiode has developed a unique technology for the fabrication of TFT backplanes directly on top of Micro-LED arrays. This enables an entirely monolithic process (with no wafer bonding) to create highly bright and efficient microdisplays.

LED developer Lextar Electronics announced that next week at Touch Taiwan 2019 it will showcase a 5.1" transparent active-matrix microLED display that achieves an extremely high brightness - 30,000 nits.

This is Lextar's first public demonstration of a micro-LED display. Last year at Touch Taiwan 2018 the company unveiled its first micro-LED chips. The company recognizes that its micro-LED display technology will not be ready for commercialization before 2020 at the earliest.

Shanghai-based Micro-LED microdisplay developer JBD unveiled its latest Micro-LED microdisplay prototypes. JBD's panels can achieve a high brightness of 2 million nits coupled with very high pixel density (5,000 PPI) on a monochrome green display.

JBD also demonstrated an even high pixel density display (10,000 PPI). JBD can currently produce either monochrome or dual-color (red and green) microdisplays, and is developing full-color ones.

Chinese LED producer ShineOn has unveiled a new MicroLED display prototype branded as IconiView at the Guangzhou International Lighting Exhibition (GILE 2019). The display is a 139" 4K panel developed jointly by ShineOn and Korea-based MicroLED developer Lumens.

The IconiView display utilizes a Flip-Chip-On-Module (COM) LED technology and features a brightness of over 2,000 nits and a contrast ratio of 3000:1. ShineOn says that the product "has been verified" and can be mass produced.

In March 2018, Australia-based RPCVD developer BluGlass announced that it has entered into a collaboration agreement with a microLED company to investigate the use of its Remote Plasma Chemical Vapor Deposition (RPCVD) production technology to produce RGB MicroLED devices.

BluGlass now announced that its partner is X-Celeprint, that used the process to demonstrate a 2,000 cd/m² micro-LED display that offers good luminance with color uniformity, quantum efficiency and forward voltage that equals current high-performance commercial applications. BluGlass reveals that X-Celeprint has been a long-standing customer of BluGlass’ foundry services and were the first adopter of its RPCVD system for Micro-LED production.

US and Sweden based Glo has been developing Micro-LED displays on both LTPS and CMOS (microdisplay) backplanes for many years. The company has been rather quiet until now (even though the 2017 investment from Google created some buzz).

Glo has now started to disclose its technology and achievements. At CES 2019, Glo demonstrated two displays. First up is the 1.5-inch smartphone type display you can see in the image above. The 264 PPI 120Hz display is produced on a LTPS backplane and produces 4,000 nits brightness - you can see how it is much brighter compared to the LGD OLED in the Apple Watch next to it (1,000 nits max).

Shanghai-based Micro-LED microdisplay developer JBD demonstrated its latest Microdisplay that achieve an extremely high brightness - 1 million nits. The display resolution is VGA. JBD is already offering its monochrome VGA micro-LED microdisplays commercially (but we're not sure if these are the 1 million nits ones).

JBD's current micro-LED process still suffers from low yields, but the company hopes to achieve at least a 70% yield in the future, which will enable it to bring prices down to about $10 to $20 per display.