Brightness

Researchers develop high uniformity epiwafers leading to 10 million nits green microLEDs

Researchers from Hunan University have designed and grown wafer-scale uniform green GaN epilayer on silicon wafers (4-inch and 6-inch in size). The epilayer was of very high uniformity and showed excellent properties. Using this wafer, the researchers developed green microLED displays reaching over 10 million nits.

This epilayer demonstrated a low dislocation density of 5.25×108 cm-2, minimal wafer bowing of 16.7 μm, and high wavelength uniformity (STDEV<1 nm). The researcher integrated the Micro-LEDs with CMOS circuits and created 1080x780 monochrome green microLED displays, which offered the ultra high brightness.

Read the full story Posted: Oct 21,2024

Raysolve demonstrates a 0.13" 320x240 full-color 250,000 nits microLED microdisplay

Hong Kong based microLED microdisplay developer Raysolve Technology announced a new microdisplay product line, branded as PowerMatch 1. These are 0.13" 320x240 full-color microLED microdisplays, that achieve a high brightness of 250,000 nits (up from 150,000 nits in the company's previous panels). The company is using blue LEDs with quantum dots (QD) color conversion.

The company says that it managed to increase the brightness compared to its previous panels by optimizing both the GaN blue material and the quantum dots conversion materials, in addition to updates to the manufacturing process and the CMOS driver. The new dispalys achieve the same olor performance of its predecessor (108.5% DCI-P3).

Read the full story Posted: Oct 10,2024

AUO shows its latest microLED displays at Displayweek 2024

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.

Read the full story Posted: May 26,2024

BOE shows a new microLED display prototype at SID Displayweek 2024

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. 

Read the full story Posted: May 24,2024

Saphlux developed a 0.39" full-color microLED microdisplay using its NPQD color conversion technology

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. 

Read the full story Posted: Aug 18,2023

Kopin receives first microLED microdisplay samples, reach over 2.8 million nits

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.

Read the full story Posted: Jun 09,2023

Tianma shows three transparent microLED display prototypes at Display Week 2023

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.

Read the full story Posted: May 31,2023

Asus launches a 135-inch 4K microLED professional display

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. 

Read the full story Posted: Apr 14,2023

AUO and ITRI developed and deployed a 17.3-inch transparent microLED AI display in a Taiwan Ferry

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

Read the full story Posted: Dec 23,2022

ITRI announces new microLED microdisplay technology for AR applications

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).

Read the full story Posted: Nov 19,2022