Samsung Display plans to list non-FMM medium-sized OLED as the next issue

 


【Lansheng Technology News】Samsung Display’s next task will be to use the semiconductor exposure process instead of FMM’s “non-FMM” method of OLED. Since the SID exhibition in May this year, Samsung Display’s internal attention to non-FMM OLED has continued to increase. This is because non-FMM OLEDs may be used to fill the technology gap between small and medium-sized RGB OLEDs and large-sized QD-OLEDs that are difficult to expand the market. It is predicted that non-FMM OLED will promote the development of the medium-sized OLED market for multi-variety small-volume production products.


Samsung Display's next task will be medium-sized organic light-emitting diodes (OLEDs) using a "non-FMM" method that does not use fine metal masks (FMM).


FMM is currently used for vacuum evaporation of red (R), green (G), blue (B) and OLED sub-pixel components in small and medium-sized products such as smartphones. OLEDs currently used in smartphones and smartwatches use FMM to evaporate RGB OLED sub-pixels adjacent to each other on the same layer. Japan's DNP (Dainippon Printing) Company is the leading manufacturer in the FMM market.


The MM must be made into a long stick-shaped FMM. In order to prevent the center part of the FMM stick from sagging downward, it needs to be stretched and welded to the large frame. At this time, if the Sitck width is widened, it will be difficult to tighten the FMM. Because of this, there is a problem that makes FMM production more difficult. It is currently known that the FMM production yield of 6-inch smartphone OLED is at the level of 30%, but as the screen becomes larger, the production yield will inevitably decline further.


It is understood that considering the width of the mass-produced FMM Stick, the OLED screen size limit that can be made into a standard screen is 15 to 17 inches. The screen sizes of OLED laptops released by Samsung Electronics and LG Electronics are also around 13 to 17 inches. Although there are many automotive displays over 30 inches, these products are narrow and thin, so the FMM Stick does not need to be significantly wider.


Samsung Display's QD-OLED and LG Display's white light (W)-OLED are being applied in the field of OLED displays and OLED TVs without using FMM and using open metal masks (OMM). These large-size OLEDs produce blue light (QD-OLED) or white light (W-OLED) by stacking 3 to 4 light-emitting layers, and then achieve this through a QD color conversion layer (QD-OLED) or a color filter (W-OLED) color. The light-emitting layer of this method has 4 layers (QD-OLED) or 3 layers (W-OLED), so the power consumption is high and the brightness improvement is limited.


As far as OLED is concerned, RGB OLED using FMM can be used for 15 to 17 inches, and large-size OLED can be used for 30 to 40 inches and above, but there is a technical gap between 17 inches and 30 inches. The reason why non-FMM OLEDs have attracted attention is due to the limitations of FMM RGB OLEDs and the gaps in OLED technology.


Lansheng Technology Limited, which is a spot stock distributor of many well-known brands, we have price advantage of the first-hand spot channel, and have technical supports. 

Our main brands: STMicroelectronics, Toshiba, Microchip, Vishay, Marvell, ON Semiconductor, AOS, DIODES, Murata, Samsung, Hyundai/Hynix, Xilinx, Micron, Infinone, Texas Instruments, ADI, Maxim Integrated, NXP, etc

To learn more about our products, services, and capabilities, please visit our website at http://www.lanshengic.com

Comments

Post a Comment

Popular posts from this blog

What are the Benefits of Power Optimizers?

Image
  Power optimizer for solar panels is a DC/DC converter that is connected to each solar panel in the PV system, turning them into smart modules. By constantly monitoring the maximum production capacity of each individual solar module, optimizers can increase your PV plant energy production – potentially increasing revenue and shortening system payback time. Simply put, the main benefit of power optimizer is that it maximizes the performance of each panel individually. What are the benefits of power optimizers and why are they needed? When installing solar panels, the panels are connected into groups or arrays. In the case of roof-mounted and in-roof panels, there are usually 12-20 solar panels in one group. If the productivity of one of these panels decreases (shadows from trees and clouds, dust, bird droppings, failures of PV components and other factors), then the productivity of the whole group decreases. Defective or shaded panels may produce 15 to 25 percent less solar energy ...
Read more

What is a Power Conditioner?

Image
  Looking to protect your sensitive and expensive electronics? Surge protection is a great start, but power conditioners also offer valuable protection for components in entertainment and sound systems, as well as home office devices. What does a power conditioner do that a surge protector can’t? Surge protectors are a great defense against damaging voltage spikes. However more than surges and spikes can effect certain sensitive electronic devices. Radio frequency interference (RFI), electro-magnetic interference (EMI) and voltage fluctuations can also effect sound, entertainment, and office devices, causing a reduction in sound and picture quality. How does it work? Power conditioners act as a buffer between the outlet and your system, smoothing out voltage fluctuations as well as radio and electromagnetic interference that can effect system performance. Initially used in industrial, research and laboratory applications, not long after the introduction of home computer systems, th...
Read more

Intel Ruixuan Graphics DX11 performance update, and launched a new Intel PresentMon\xa0Beta

Image
  【Lansheng Technology Information】Through the release of the latest Game On driver,  Intel  has improved the performance of Intel Ruixuan graphics card running a series of popular DX11 games-bringing an average frame rate increase of about 19% for gamers, and the average About 20% of the 99th Percentile frame rate fluency has been improved. This update opened the prelude to the optimization of Intel Sharp DX11. The above-mentioned games are just the beginning of this optimization. Intel will continue to bring more game experience upgrades to users. Intel  will not stop here, and will continue to optimize Intel Sharp Graphics. The optimization and upgrade of DX11 this time is another proof of Intel's fulfillment of its commitment to players in terms of software optimization and game technology integration. Since the release of desktop graphics cards, Intel has released 30 driver updates, provided 57 new games with Game on optimization support, and provided many other...
Read more