Advancements in Display Technology: miniLED, MicroLED, OLED, and LCD Innovations

In October, the technology industry was bustling, and on October 22, it was even more so, not only with the highly anticipated Huawei Mate 40 series products launched that evening, but also with the grand opening of the TCL Huaxing Global Display Ecological Conference (DTC 2020).

At this conference, TCL Huaxing gathered hundreds of partners and industry experts from around the world in Shenzhen to explore the applications and future trends of new display technologies, establishing a cross-industry communication platform and building an ecological alliance for the new display industry chain.

Without further ado, as a platform focused on technology in the industry, let’s directly dive into the product technologies.

miniLED & MicroLED

Since the launch of the a-si AM miniLED array screen – “MLED-星曜屏” at the Shenzhen Huaxing factory last year, TCL Huaxing has been making strides in the miniLED & MicroLED layout.

At that time, the product launch was evaluated by OLEDindustry as mini-LED moving from PCB, si to a-si TFT glass era.

More than a year later, participating in the TCL Huaxing Global Display Ecological Conference (DTC 2020), the product technology has made new breakthroughs, and the strategy has also reached a new milestone.

In terms of product technology, TCL Huaxing highlighted the launch of two “world’s first” miniLED products, namely the 142″ IGZO glass-based active MLED display and the 48″ 8K In-cell Touch AM Mini-LED backlit curved vehicle screen.

Everyone must have noticed that this time it is based on an IGZO glass substrate, while last year it was based on an amorphous silicon glass substrate. As professionals in the display industry, I will not elaborate on these two backing technologies here. The active Mini-LED display product based on the IGZO glass substrate uses an 11″ unit as the smallest splicing unit, with single-point control paired with industry-leading black-state optical design, providing an extreme pure black picture experience with a million contrast ratio and a wider dynamic display range. Meanwhile, it can achieve modular infinite splicing for large screens, with free dimensions and aspect ratios, making it very suitable for diverse commercial display scenarios such as office conference machines, command centers, theaters, etc. This product can be said to be a continuation and innovation of last year’s amorphous silicon-based MLED product.

In addition to the active miniLED products, Huaxing also launched the miniLED backlit product – the 48″ 8K In-cell Touch AM Mini-LED backlit curved vehicle screen.

48″ 8K In-cell Touch AM Mini-LED backlit curved vehicle screen

Mini-LED backlighting has clearly become an important direction for upgrading LCD panels. In the current display field, HDR has become a standard feature for high-end televisions, and Mini-LED technology can easily meet the current HDR standards. In the future, Mini-LED will accelerate its penetration into the display market, allowing displays to return to picture quality itself, and will improve the situation where LCD panel products have no chance against OLED panel products in market share competition.

This 48″ ultra-large vehicle display, about 1.4 meters long, spans the entire A-pillar, integrating instrument, central control, and co-driver entertainment functions, combined with an R4200 curved design, allowing for better integration with the car’s interior design. Additionally, with the industry’s highest 8K1K resolution, the industry’s first 5096-zone AM Mini-LED backlight, and 100% NTSC, it provides an excellent driving visual experience with a million ultra-high contrast. Furthermore, the in-cell touch technology offers drivers a more comfortable and smooth manipulation experience.

It is reported that in the future, based on touch, this product can also achieve a floating touch function, allowing for perfect control through gestures.

Mini-LED is becoming the “darling” of the display field. Since 2019, giants like TCL, Apple, Hisense, ASUS, Innolux, AUO, BOE, etc. have successively launched Mini-LED backlit or similar technology televisions, monitors, VR, and vehicle display terminals. Mini LED has the characteristics of high brightness, long life, low cost, and high contrast, making it a display device used by major manufacturers, and TCL’s technology will also become one of its important supports in the industry.

In addition to miniLED, the next generation of MicroLED, considered to be the most promising, how could TCL miss out?

This time, TCL Huaxing showcased China’s first self-developed AM Micro-LED display screen based on IGZO glass substrate, developed in collaboration with Sanan.

It is reported that this product has a size of 4 inches, adopts leading μLED mass transfer technology, high brightness, high color gamut, high contrast, and can achieve double-sided display.

Advancements in OLED

OLEDindustry, as a platform focused on the OLED industry, was pleasantly surprised to see the global first AM OLED cloud rollable screen and printed OLED rollable screen released today. These two products have made further advancements in the foldable screen and OLED process routes, with even more expectations for their performance.

This time, the TCL Huaxing 6.7″ AMOLED cloud rollable screen showcased a unique charm of flexible technology unlike before. With an innovative sliding rollable form, the front screen size is only 4.5″, making it very convenient to carry. Sliding the body allows the display screen to unfold to 6.7″, freely switching the display size. The product adopts the industry’s first ultra-thin 3mm rollable design, lighter and thinner; combined with industry-leading rollable and sliding compensation mechanism design, smoother; can withstand 200,000 roll and slide times, more durable. Unlike the flexible foldable phones currently on the market, the cloud rollable screen maintains the same thickness of the body while sliding the screen, making it more compact in the retracted state, allowing you to enjoy a multi-faceted view while rolling and unfolding with ease.

Meanwhile, the 17″ printed OLED rollable screen has chosen a completely different route from the current mass-produced OLED technology, using inkjet printing technology. This product, resembling a “sacred edict”, adopts a top-emitting device structure, with a color gamut of up to 100%, while the color film filter effectively reduces the thickness of the screen, thereby enhancing its rollable characteristics.

Additionally, TCL Huaxing provides four types of AMOLED foldable products and solutions: dual inner fold, dual O-Cut OR4 OLED foldable screen, water drop shape YIR3 foldable solution, and wedge shape VIR1.5 foldable assembly solution.

The dual inner fold OLED display screen launched this time has a size of 10″, dual inner fold IR3, allowing for seamless switching between mobile phone, tablet, and laptop forms, paired with a virtual physical keyboard, providing users with an unparalleled entertainment and mobile business office experience.

As for the dual O-Cut OR4 OLED foldable screen, its size is 7.9″, boasting the industry’s smallest radius (4mm) for outer foldable phones, with an ultra-thin appearance (the thinnest side is 3mm), and an 8mm ultra-thin body, combining phone and tablet into one, featuring the industry’s first side-curved + foldable screen technology, with a unique asymmetrical thickness design (3mm, 5mm), reserving more space for the overall system.

Compared to the above two products, I personally find the mass-produced foldable solutions more attractive. This time, solutions for the water drop shape foldable screen assembly (foldable OLED screen + hinge) and wedge shape VIR1.5 foldable display screen assembly were launched. Both have a size of 6.7″, adopting 50um UTG ultra-thin glass technology, with a body thickness of 7mm, and the back shell surface having antibacterial and sterilization functions (sterilization rate ≥99%), both can withstand at least 100,000 folds and can be mass-produced.

The difference is that the inner folding radius of the water drop type is 3mm, while the wedge-shaped folding bending radius is 1.5mm.

6.7″ water drop shape YIR3 foldable display screen assembly solution

wedge shape VIR1.5 foldable display screen assembly solution

It is worth mentioning that TCL Huaxing has already cut into multiple models in OLED, including Xiaomi 10, Xiaomi 10 Supreme Memorial Edition, foldable OLED with Motorola Razr foldable phone, and the under-screen camera that was not disclosed at this launch, which may be used in Xiaomi’s next-generation flagship phone, and in the future, more brands may participate.

Breakthroughs in LCD

On the same day, new products from the LCD series that have been cultivated for many years were also announced. Here I list what I consider to be the highlights of the new LCD product technology, as TCL Huaxing has too many LCD products (haha).

World’s first

World’s narrowest bezel 65″ 8K full screen

0.3mm ultra-narrow bezel, with a screen-to-body ratio of up to 99.9%, industry-leading. The product is paired with Mini-LED backlighting, boasting ultra-high color gamut, along with an ultra-thin design, balancing extreme picture quality and appearance.

World’s first

6.3” UWFR 1-120Hz mobile display screen

First to achieve 1-120Hz ultra-wide frame frequency display, with a low frequency of 1Hz to reduce display power consumption, more energy-efficient, and a high frequency of 120Hz to increase display smoothness, providing an excellent visual experience.

World’s first

85” 8K IGZO 120Hz 1G1D display screen

The world’s first high-end LCD based on IGZO technology, 85 inches, 8K, 120Hz, 1G1D, adopts 4mask IGZO backplane technology, with a transmittance of 4.5%, a contrast ratio of 5000:1, improving by 8% and 15% respectively compared to the same specification amorphous silicon products, additionally, power consumption is reduced by 30% compared to the same specification amorphous silicon products.

World’s first

15.6” UWFR 5～360Hz NB display screen

First to apply UWFR technology to Notebook products, achieving 5~360Hz ultra-wide frame frequency display, with a low frequency of 5Hz for more energy efficiency, and a high frequency of 360Hz paired with 1ms rapid response for clearer and smoother images.

World’s first

6.3” ultra-narrow bottom bezel super full screen

This super full screen is a black technology product with independent research and development patents by TCL Huaxing, reducing the lower edge to only 2.4mm (from AA area to FPC), leading the industry, providing a more authentic full-screen experience.

Laser Technology

Finally, a 32″ laser remote interaction product was also showcased, which is strictly speaking, the “world’s first”.

This product allows for remote (over 10m) touch operation on the display interface using ordinary commercial laser pointers and TV remote controls, without any contact.

I estimate that those who are fond of these laser products are already unable to contain their excitement. This product is equipped with multiple interactive Apps, suitable for various scenarios such as family early education and large commercial meetings.

This launch event was filled with “surprises”; various display products such as microLED, miniLED, OLED, LCD, and laser all showcased impressive capabilities. The comprehensive interaction of LCD, OLED, microLED, and laser demonstrates TCL Huaxing’s pursuit of a global display ecosystem. After all, this event aimed to explore the applications and future trends of new display technologies, establish a cross-industry communication platform, and build an ecological alliance for the new display industry chain. Comprehensive layout of new display technologies has always been TCL’s goal and a decision made naturally by market drivers.

Perhaps under TCL Huaxing’s continuous innovation and the dual offensive of forming a complete ecological chain, the market will provide positive feedback. However, how the future will unfold remains to be seen.

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Previous Highlights

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Prices exceed 18,000! The strongest Huawei Mate40 is here….

TCL Huaxing DTC 2020 highlights: AMOLED cloud rollable screen, printed OLED rollable screen……

Starting at 4,499 yuan! 6.67-inch hole-punch AMOLED! Without the old Luo’s hammer, the Nut looks like this……

Starting at 3,299 yuan! Huaxing Optoelectronics supplies screens! OPPO TV release: top configuration QLED + 120Hz screen

BOE promotes UTG internalization, causing concern in the Korean display industry

New breakthroughs in quantum dot displays! Samsung releases Nature: Achieving 100% quantum yield!

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