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Recent Micro-LED News

Jasper Display unveils a new silicon wafer specialized for micro-LED displays

Jasper Display LogoTaiwan's Jasper Display Corp (JDC) unveiled its new silicon micro-LED backplane, the eSP70, which reportedly features high brightness and contrast possible. JDC's eSP70 is capable of FHD (1920x1080) resolution using a pixel pitch of 8 um and JDC says that it offers excellent current uniformity via a proprietary current source pixel (uniformity is better than 1% across the array).

JDC demonstrated the eSP70 using micro-LEDs provided by glō. The company says that this is the industry's first specialized micro-LED ready silicon. JDC's technology can be customized and it can be suitable for a wide range of applications, from AR headsets to automotive headlights. JDC's eSP70's 8" are now shipping.

Researchers use a micro-LED covered with perovskite QDs to achieve high-speed visible light communication

Researchers from Fudan University, Shanghai develop a high-bandwidth white-light based system made from a blue gallium nitride (GaN) micro-LED with a yellow-emitting perovskite quantum dots. This system could be a way to enable high-speed real-time visible light communication (VLC).

The researchers used a 80 x 80 um blue-emitting micro-LED that has a modulation bandwidth of about 160 MHz and a peak emission wavelength of ~445 nm. The white-light system (following the perovskite QD conversion) achieves 85 Mhz - which means a maximum data rate of 300 Mbps.

Digitimes Research: smartphone makers to adopt mini-LED backlit LCDs as an alternative to AMOLEDs in 2018

Digitimes Research says that China-based smartphone makers (including Huawei, Oppo and Xiaomi) are planning to adopt mini LED backlit LCD panels in future smartphones as an alternative for AMOLED displays.

The Chinese phone makers have reached out to Taiwan-based LED makers to start making mini-LED backlighting units by June 2018. Currently the OLED market is in an over-demand situation which means that securing enough AMOLED capacity is not easy - and it also drives prices up. According to IHS, the situation will reverse in 2018, though.

Samsung has plans to offer its Micro-LED TV (The Wall) in modular sizes

Earlier this week Samsung unveiled its MicroLED TV, called The Wall. This is a modular display that is completely seamless. At CES Samsung unveiled a 146" 4K display, but according to this new video from Samsung the company will also offer it in customized sizes.

Samsung says that this is the world's first Modular TV. While modular displays are not new (Mitsubishi for example has a beautiful modular PMOLED display called Diamond Vision OLED) it seems that Samsung aims for this to be the world's first modular consumer display. It's not clear whether customers will be able to change the design.

LG Display: we are also developing large MicroLED TVs, but there are many challenges ahead

Following Samsung's unveiling of its 146" Micro-LED TV prototype, LG Display's CEO said that LGD is also developing Micro-LED technologies for large >150" panels.

LG Display sees several technical challenges ahead before it could launch such a display commercially - and it also has concerns regarding the production costs of huge MicroLED TVs. In the meantime the company is focused on its OLED TV technologies.

Innolux unveils an automotive 10.1" mini-LED display prototype

Taiwan's Innolux demonstrated a new prototype mini-LED display. The 10.1" panel features a resolution of 1540x720 (168 PPI).

Innolux 10.1'' mini-LED prototype display (CES 2018)

Innolux says that this type is very suitable for automotive applications - as it has an almost infinite contrast (similar to OLED displays) and it can also work in the demanding temperatures required by the automotive industry. Innolux hopes that such mini-LED displays can find a market and be a bridge before the company can develop micro-LED displays with higher densities and increased brightness.

Here is Samsung's 146" Micro-LED TV, "The Wall"

As reported a couple of months ago, Samsung unveiled its first Micro-LED TV, aptly named "The Wall". This is a 146-inch tiled 4K display that is almost 8 times larger than a 55" TV in area.

Samsung 146'' micro-LED TV, The Wall

Samsung did not reveal much details. Reports from CES suggest that each tile is about 3-inch in size, and it seems like you cannot see the seams of the individual tiles. It did demonstrate the difference in size between Micro-LED and regular LEDs as you can see below:

PlayNitride starts to ship micro-LED panel samples, working with 5-6 customers

PlayNitride began sampling micro-LED panels, shipping these to 10-20 potential customers in Q4 2017. The company's chairman and CEO, Charles Li, says that 5-6 of these customers are continuing the developing of micro-LED modules based on these panels.

PlayNitride MicroLED array

In September 2017 we reported that Charles Li said that Micro-LED displays are not as challenging as originally expected, and the company aims to start trial production of Micro-LED displays in the second half of 2017 - it's great to see the company progressing as planned. PlayNitride says that it achieved mass transfer and placement yield rates of over 99% in its lab.

Plessey aims to bring a monolithic GaN-on-Silicon MicroLED display to the market by H1 2018

Plessey logoUK-based Plessey Semiconductor announced that it aims to be the first to market with a monolithic microLED based display based on GaN-on-Silicon in H1 2018 The company also announced a new licensing program that will enable third parties to license its GaN-on-Silicon microLED IP and expertise.

Plessey says that GaN-on-Silicon is the only technology that can address all the production challenges for MicroLED displays in high volumes. The company's main business will be its licensing platform, but it aims to bring to market its own displays to demonstrates its expertise.

NanoGaN purchases micro-LED applicable quasi photonic crystal patents from Luxtaltek

NanoGaN (a subsidiary of UK-based Eipwafer foundry and substrate maker IQE) announced that it has purchased a portfolio of 54 quasi photonic crystals patents from Taiwan's Luxtaltek for $500,000.

NanoGaN says that these newly acquired patents have applications in optical components - including Micro-LED displays. Other possible applications are in the fields of vertical-cavity surface-emitting lasers (VCSELs), modulators, silicon photonics, fiber-optic systems, biosensors and more. IQE believes that due to its existing in-house NIL capability, the firm is well positioned to commercialize the new technology.