Brightness

AUO had an impressive booth at Displayweek, showing some of its latest microLED prototypes. It is clear that the company is highly focused on microLED technology as its next-gen display strategy.

First up, with a 31" large area single-panel microLED, which AUO says is the world's largest. The display is produced on a single glass LTPS backplane, and offers 120Hz and a brightness of 500 nits. AUO calls this a Large Size A.R.T. MicroLED display.

BOE had a large demonstrating at SID Displayweek 2024, showing several of its latest displays and prototypes - including many flexible and foldable OLED displays, automotive AMOLEDs, new OLED technology demonstrators and two OLED microdisplays.

BOE also showed a microLED display demonstrator, which it called the MicroLED Transformer Display, that included two panels that can connect in an almost seamless way (but not completely). The displays are flexible (curved) with a 0.3 mm pitch display (P0.3). Other specifications include a brightness of up to 2,000 nits (peak), and a refresh rate of 90Hz. 

US-based Saphlux has developed a 0.39" full-color microLED Microdisplay, based on the company's NPQD color conversion technology. You can see a sample of Saphlux's T1-0.39 RGB display in the video below. 

Saphlux's first microdisplay offers a maximum white brightness of 250,000 nits, and a wide color gamut. The company is using high-EQE blue microLEDs (it has a partner that supplies the LEDs) and its NPQD technology achieves 67% photon conversion efficiency. The company's technology enables a pixel pitch of sub-2 microns. 

US-based Microdisplay developer Kopin announced that it has reached an important milestone in its 2Kx2K high brightness microLED microdisplay development project. The company received the first verification samples, that utilize the company's proprietary backplane and drive technology. These displays achieved brightness levels of over 2.8 million nits. 

Kopin says that it expects to increase the brightness level to 3.2-3.5 million nits by the time these displays reach production. The company did not yet reveal any actual production plans or roadmap.

During Display Week 2023, Tianma demonstrated its latest microLED display prototypes - all of which are transparent displays, stating that the main application for such displays is in the automotive sector.

The first display is a 8.75" panel, offering a resolution of 880x480 (114 PPI), a brightness of 800 nits and high transparency of over 70%. The display is an active-matrix microLED produced on an LTPS backplane.

Asus has launched several new products, including the company's first microLED display, the 135-inch 4K ProArt Cinema PQ07. The company targets applications such as broadcasting, virtual production - and home cinema.  The price tag of the ProArt Cinema PQ07 is $200,000.

The display features a 0.7815 mm pixel pitch, 2000-nits peak brightness and a 95% DCI-P3 color gamut. 

AUO, together with ITRI, developed a new 17.3" transparent microLED display, and deployed a few of these displays in a ferry operated by the Taiwan Kaohsiung Shipping Company. The Snoopy-featured Yawan Smart Ferry, will set sail for the first time on December 24, connecting Zhanerku, Cijin, and Gushan. The gesture-controlled AI smart window screen navigation system combines AR and eye tracking to show tourists information based on what they are looking at. 

The LTPS microLED displays offer a 1820x720 resolution and a 120Hz refresh rate. The transmittance is 55% and the peak brightness is 3,000 nits

Taiwan's Industrial Technology Research Institute (ITRI), is introducing its latest microLED microdisplay technologies, and unveils its latest microdisplay prototype.

The 0.5" display offers full-color images (using blue LEDs and quantum-dots based color conversion), high resolution (over 2,000 PPI) and high brightness (over 20,000 nits). The display offers high power efficiency - ITRI says it consumes less than half the energy of current solutions (likely compared to OLED microdisplays).

LG Electronics launched a new microLED TV in the US, the LG MAGNIT 4K 136-inch 2000-nits 120Hz Micro LED residential display (LSAD Series). This residential TV is a "luxury residential display' that is powered by LG's latest Alpha 9 AI-enhanced processor and the company's own webOS smart TV platform.

LG says that the new MicroLED display is available in the US through specially-certified LG distribution partners.

In 2021, Austria-based C SEED released a high-end microLED TV, the $400,000 165" 4K C SEED M1, which has a unique foldable design, which makes use of seven large MicroLED panels.

C SEED now announced a new outdoor foldable MicroLED TV, called the HLR series. The displays (both based on seven panesl) offer a brightness of 4,000 nits and a resolution of 4K. There are two models, a 144" one which costs $298,000 and a 201" one that costs $590,000.