Quantum Dots

Revolutionizing Display Tech with XTPL's UltraPrecise Dispensing System

How XTPL's Ultra-Precise Dispensing System is Shaping the Future of OLED and MicroLED Displays Exploring the Future of Display Technology: OLED, QD-OLED, and MicroLED Compared

OLED (Organic Light-Emitting Diode), QD-OLED (Quantum Dot Organic Light-Emitting Diode), and MicroLED (Micro Light-Emitting Diode) share some common characteristics as emissive display technologies:

  1. Emissive nature: They all emit light when an electric current is passed through them.
  2. Active matrix: They use an active matrix to control the emission of each pixel.
  3. Pixel structure: Each pixel typically consists of three sub-pixels (red, green, and blue) that can be controlled independently.
  4. High contrast ratio: They are capable of producing high contrast ratios due to their ability to turn off or dim individual pixels.
  5. Fast response time: They have fast response times, which enables them to display fast-moving content without blurring or ghosting.
  6. Viewing angles: They can maintain good color accuracy and contrast even when viewed from the side, although MicroLEDs tend to have better viewing angles. 
Fig. 1 XTPL Ultra-Precise Dispensing System

Fig. 1 XTPL Ultra-Precise Dispensing System

Read the full story Posted: Jul 09,2024

MicroLED startups raise over $200 million in the past year

In the past year, microLED startups have raised over $200 million. As some companies (most notably Aledia and JBD in this case) mature and start to build production capacity, the need for funds grows, and we have indeed seen large investment rounds in these companies.

It is great to see these recent funding successes, which will hopefully lead to increased innovation and also initial production. It should be noted that most (if not all) of these financing rounds have been finalized before Apple made its decision to cancel its main microLED wearable project. We do not see Apple's decision as having a major impact on the long-term viability of microLED technologies or on the industry - but we do know that some investors are now hesitant to invest in this market following Apple's project cancellation. 

Read the full story Posted: Jul 03,2024

Innolux shows new microLED display prototypes at Displayweek 2024

Innolux showed several new microLED display prototypes at Displayweek 2024, as it focuses on microLEDs as its next-generation display solution.

First, the company showcased a large 106" tiled microLED TV display, build from 96 12.3" modules. The display uses 20x40 um blue microLED chips (with QD color conversion) and an LTPS backplane.

Read the full story Posted: May 28,2024

VueReal introduces its first microLEDs based on blue LEDs and QD color conversion

MicroLED display developer VueReal announced a new microLED architecture, based on blue LEDs and QD color conversion, which it brands as QuantumVue. VueReal says it developed its own patented dynamic quantum dot (QD) patterning technology which complements its unique proprietary MicroSolid Printing microLED transfer technology.

VueReal says that its QuantumVue displays offer high sustainability and affordability without compromising image quality. The technology is especially suitable for TV panels as it can offer superior performance at a competitive cost compared to a native RGB microLED display architecture.

Read the full story Posted: May 20,2024

Researchers develop polarized LCD backlighting unit based on semipolar microLEDs and perovskite materials

Researchers from several Universities in China developed a self-polarizing RGB device utilizing semipolar microLEDs and perovskite based films aimed at improving backlight applications.

Structure of an LCD based on semipolar blue μLEDs excite anisotropic perovskite NCs as backlight image

Structure of an LCD based on semipolar blue μLEDs excite anisotropic perovskite NCs as backlight. Image from Opto-Electronic Advances

In standard LCD displays, the backlighting units emits non-polarized light, which then results in an almost 50% light loss as this light has to pass through a polarizer (this is part of the LCD light path). The newly developed high-performance device is designed to emit RGB polarized light which results in higher efficiency and no light-loss due to the LCD filter.

Read the full story Posted: Apr 06,2024

Avantama and Scrona collaborate to show how perovskite QDs can be inkjet printed on microLEDs using EHD

Scrona, developer of high-precision electrohydrodynamic (EHD) inkjet print heads joined forces with Avantama, developer and manufacturer of high-tech materials for electronics, and have successfully processed high-performance perovskite quantum dot (QD) ink using Scrona's EHD inkjet printing. 

The two companies specifically target microLED displays with this development, as depositing QDs on microLEDs requires extremely high precision. They have demonstrated that an OD greater than 1 can be obtained with a perovskite QD layer thickness below 2µm. This can reduce the printhead nozzle count by a factor of five (compared to current non-EHD inkjet solutions) and deliver a thin QD layer that improves the overall efficiency and production tact time of MicroLED display technology.

Read the full story Posted: Jan 25,2024

Saphlux Unveils T2 Series Monolithic Full-Color Micro-Display with Enhanced Brightness and Color Performance

In a recent announcement, Saphlux, Inc. revealed that its NPQD® Monolithic Full-Color Micro- LED (mLED) technology has successfully undergone a new round of technological upgrades. Following this advancement, the company has launched the enhanced T2 series micro-displays.

The Saphlux T series micro-displays incorporate core technologies, including NPQD® and large-scale silicon-based bonding, specifically tailored for the AR display applications. The series currently encompasses 0.12-inch monochrome single-color (red, green, blue) micro-displays and 0.39-inch monolithic full-color micro-displays.

Read the full story Posted: Jan 22,2024

Raysolve shows new microLED microdisplay prototypes at CES 2024

Hong Kong based microLED microdisplay developer Raysolve Technology demonstrated two new microLED microdisplay prototypes, 0.11" (320x240) and 0.22" full color displays. The displays feature a density of 7,200 PPI and a brightness of up to 150,000 nits (full color). 

The displays are based on blue LEDs, with the company's proprietary Quantum dot photoresist (QDPR) process. Raysolve says it has optimized its QD process and increase the color gamut of its displays - which now achieve 147.2% sRGB, 104.3% NTSC and 108.5% DCI-P3. 

Read the full story Posted: Jan 16,2024

Time to reserve your ticket now for the MicroLED-Connect startup showcase in February!

MicroLED-Connect is a hybrid event series, a year-long program of virtual and onsite events, all focused on the microLED industry. The first online 2-day webinar was hosted successfully last month, with over 25 lectures (all recordings accessible for pass holders). The next event is a startup showcase, that will be hosted on February 22, 2024.

MicroLED Connect banner

The startup showcase includes lectures from 8 leading microLED startup companies, covering topics such as microdisplays, AR headset development, microLED production, transfer processes and microLED inspection.

Now is a great time to reserve your ticket and make sure you stay updated with the latest innovation from the following startup companies: Rayleigh Vision, Inziv, Comptek Solutions, QustomDot, Terecircuits, iBeam Materials, Kura Vision and NS Nanotech. You can read the complete agenda here.

Read the full story Posted: Dec 20,2023