How Are OLED/QLED/Micro/Mini LED Technologies Developed?

- Jul 26, 2018-

OLED TV


As the current mainstream flexible display technology, OLED, with its excellent display performance and characteristics, is the most likely to replace the traditional TFT-LCD display technology.


OLED as illuminated display, no internal and traditional TFT - LCD liquid crystal molecules, so the flexible OLED often use the combination of the substrate can be better in the plastic substrate, including PET, PEN, etc., also have the use of metal foil substrate, other and ultra-thin glass substrate, so that the OLED display to realize the flexible display function such as bending.


According to the comprehensive data of online and offline sales during the promotion period of May 1, 2018 (49-5.6) released by zhongyikang, the sales volume of color TV market is 3.94 million yuan and 12.5 billion yuan, respectively decreasing by 12.4% and 26.1% year on year, showing the adverse situation of falling volume and price.


In the context of the sluggish macro environment, OLED TV channels all show a trend of increasing penetration rate. Online and offline channels have increased by 83% and 100% respectively, which is the highest growth rate in history and the fastest growing category of TV products.

According to the data of OFweek industry research institute, the sales volume of OLED TVS in China reached 120,000 in 2017. In order to achieve differentiated sales, TV manufacturers such as SONY, philips, LG, skyworth and kangjia all joined the OLED camp. The overall sales volume of OLED TVS in China will at least double from 2017 in 2018.


At present, more and more whole machine manufacturers are joining the OLED camp.

Since the end of 2017, OLED has expanded to philips, including Japanese manufacturers such as SONY and panasonic, Korean manufacturers such as LG electronics, and major Chinese manufacturers such as skyworth, changhong and kangjia, a total of 13.


Among the domestic manufacturers, skyworth entered the OLED camp early, so to a certain extent it has a head start.

It's worth noting that in the second half of this year, two brands will join OLED, which is widely regarded as hisense and Toshiba.


Quantum dot television


As a successor of OLED, QLED TV has a rapid development trend driven by samsung, TCL, hisense, philips and other TV giants.


In 2015, samsung announced the release of SUHD TV, which blew the horn of QLED TV.

In 2016, QD Vision, a technology company known as the "father of quantum dot display", was acquired to further develop QLED.

In 2017, samsung's first QLED flagship TV, Q8C, was born.

Since then, samsung has officially embarked on the path of QLED.


In addition to samsung, domestic giant TCL was also the first in the world to study and promote quantum dot display technology, so it has an absolute say in this advanced display technology.

It has been around since the first quantum dot product was launched in 2014.

From the world's first QUHD TV quantum dot TV X1 in early 2016 to the X5, which was announced this year, TCL's QLED layout is also getting faster.


Currently, TCL has invested several billion yuan in quantum dot technology, and is now practicing printing technology with existing OLED materials, so as to gradually realize the application of quantum dot technology and plan to commercialize quantum dot technology in five years.


Hisense, on the other hand, has developed its own ULED TV.

Hisense tianji series ULED ultra - picture quality television sets, which combine the advantages of quantum dot technology, become the representative products of liquid crystal television, and is another milestone product of hisense to promote the upgrading of liquid crystal display technology.

It is reported that hisense's new generation of quantum dot display products will be officially launched in 2019, and will continue to introduce more high-quality ULED TV products.

In 2017, although the market for quantum dot display (QLED) is declining, the number of chips sold worldwide is reduced from 3.42 million in 2016 to 2 million in 2017, a decrease of 42%.

In the same period, quantum dot material shipments also decreased from 3.11 tons to 1.9 tons, leaving 61%.

But the yano institute for economic research, a market-research institute, says the market will improve in 2018, with both quantum dot materials and display panel shipments exceeding 2016 levels and rising further in 2019.


Yano economic institute survey pointed out that the emergence of the low cadmium and no cadmium quantum dot material and mass production, and can be used in quantum dot panel LCD panel material price cut, in 2018, can change the current unfavorable to the dynamics of the quantum dot display technology, let more manufacturers are willing to join the quantum dot material and quantum dot display panel production market, display panels for the 2018 quantum dot the factors of its production.


Moreover, the quantum dots of emerging display technologies have great potential for technology growth. The design of new glass guide plate, new protective film processing or structure without protective film all help to reduce the cost of quantum dot display panel, increase the size of quantum dot display, and cater to the trend of large-screen TV.

Micro LED 

According to the relevant survey data, the global Micro LED display market value will reach $22.9 million in 2018.

Allied Market Research expects the Micro LED display Market to reach $1.9456 billion by 2025.

This means that from 2018 to 2025, the market will grow at a compound annual rate of 89.2%.


The Micro LED market is dominated by apple, samsung, SONY, LG Display, Oculus, Play Nitride, VueReal, eLUX, Rohinni LLC and Aledia.


At CES 2018, samsung unveiled the world's first modular TV with Micro LED display technology, which is expected to be shipped in the third quarter of 2018.

Meanwhile, samsung will open its Micro LED factory in Vietnam in July, becoming the world's first successful manufacturer of Micro LED TVS, which are supplied by SAN 'an optoelectronics.


LG and apple have also followed suit, with Business Korea reporting that LG's vice chairman has asked for the launch of Micro LED TVS bigger than samsung by September.

Apple is also rumoured to have Micro leds on the apple watch 4 this year.


For Chinese manufacturers, SAN 'an says Micro leds will be the focus of the company's development, starting a year or two ago.

The company has also said it has conducted research and made some progress.

Taiwanese manufacturers have been pushing the development of Micro leds, which they hope will bypass cars.

Au optronics has pioneered the world's highest resolution active 8-inch Micro LED display technology. Hon hai has invested in American Micro LED practitioner eLux and has successively attracted sharp, group innovation and other manufacturers.


TV panel technology comparison: OLED, quantum dot, Micro LED and Mini LED who can win?


Although investors believe Micro LED TV production time is not yet mature, and even some industry for doubt MicroLED display technology, but samsung decided to push ahead of Micro LED TV to enter the high-end market, prompted Micro LED technology from research and development stage, fast join factory of global brand marketing strategy, Micro LED TV can play samsung turnaround of the fire is still unknown, but will open new page shows the history of technology.

As a transition technology for Micro leds, Mini leds have relatively large liquid crystal molecules and are relatively easy to make.

The liquid crystal panel with the Mini LED backlight only replaces the existing LED backlight with smaller Mini LED, so the mass production time will be much faster than the Micro LED panel.


According to the latest report, the market value of Micro LED and Mini LED is expected to reach 1.38 billion us dollars by 2022.


At present, chip manufacturers such as crystal power, ronda, sanan and huakan, as well as panel manufacturers such as youda and qunchuang, as well as package manufacturers such as yiguang, rongchuang, hongqi and Seoul semiconductor, have all been optimistic about the prospects of Mini LED and have increased the research and development of related products.


Hong jinyang, the new chairman of qtronics, said the large-size TV with AM Mini LED technology is expected to be launched in the second quarter of 2019, and the car products are expected to be available in 2020.


It has been reported that the Mini LED products will be shipped in small batches in the second half of the year and supplied to huawei.

Production of the Mini LED chip for smartphones and televisions will start in the second half of 2018, and production of the Mini LED chip for high-end game displays is likely to start in the second half of 2018, the company has said.


TV panel technology comparison: OLED, quantum dot, Micro LED and Mini LED who can win?


As a transition product of Micro LED, Mini LED has advantages in cost and mass production compared with OLED, which is the leading battle for Micro LED.


From a cost perspective, the composition of Mini LED modules is lower than OLED.

For example, the TFT LCD TV panel designed with Mini LED backlight only costs 60 to 80 percent of the price of OLED TV panel, but the brightness and picture quality are similar to OLED.


From the performance point of view, Mini LED has the characteristics of saving electricity and high efficiency. The saturation and high dynamic range are better than OLED and 50% less electricity than OLED.

With special cutting characteristics, the surface backlight can be achieved with soft panel, and its thickness is close to OLED.


From the perspective of mass production, compared with Micro LED, Mini LED technology is less difficult, easy to achieve mass production and high yield. Most existing production equipment can be used for mass production.


Edit view:


As we all know, after liquid crystal, both quantum dot and OLED are committed to becoming the next generation of display technology. Samsung is fighting the banner of quantum dot TV, while LG is fighting OLED.

It is worth noting that as the price of OLED TVS continues to fall and the popularity of OLED TVS begins to expand, the quantum dot camp has fallen behind.


As the quantum dot technology and OLED face off, samsung decided to let the next-generation Micro LED display technology play in advance. In the second half of 2018, samsung will be on the global stage to try out the water temperature in the world's top consumer market and face up to OLED TV.

It can be seen that in 2018, the high-end market will become a drama between Micro LED and OLED TV.


In addition, some vendors will be launched from the second half of the 2018 accelerated size bigger Mini LED machine, due to the Mini LED TV supply chain and process development is relatively mature, in addition to auo panel factory, group and actively import, on both sides of the LED industry electricity, light, crystal ronda also successively screens, three Ann, the magnitude, will set off a new round of display for 2018 war.