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Nov 27, 2015

LG Display announced that it will build a new OLED display plant in Paju, Korea. The P10 fab will mainly make large-size OLED TV panels and flexible OLED panels - but LGD also expect to produce future display technologies such as transparent OLEDs at the new plant. LG Display's CEO says that this is an "historical investment" for the display industry as it will expand the OLED market and accelerate future display technology development.

LG 13x8m OLED installation Incheon airport

The P10 is going to be a large plant - with an area of 382x265 meters (similar to 14 football fields) and will be 100 meters high. The OLED TV lines will be Gen-9 lines while the flexible OLED lines will host smaller substrates. The first production line is scheduled for mass production in the first half of 2018.

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Hi Ron,

do you know what LG and Samsung understand, when they announce flexible?

The images show som rolled up displays, but I am eager to see truly flexible OLED displays, e.g. one that can be used for foldable tablets and alike. At the same time, I doubt this can be done without completely new technologies inside, e.g. other backplane tech. 

Do you have any idea, what new technology will be used in the new fabs which produce flexible AMOLED?

Thank you for an update!

It's too early to tell for the 2018 fab... but I'm guessing the Gen-6 fab announced earlier will develop flexible panels that are similar to the ones we've seen on the GS6 edge, the Note edge, Apple's watch and LG's Flex phones. Rollable and foldable panels should start to appear next year or so...

Bear in mind that when companies like LG, Samsung, AUO, Hisense, Changhong, Japan Display, Toshiba, etc. etc. refer to "flexible" displays, they are typically referring to the ability to make displays that conform to non-planar geometries.

eg the Samsung Galaxy Edge phones, which have very small non-planar displays in addition to the larger planar display  (yes, indeed, the edges are SEPARATE displays, with SEPARATE control by the GPU of the SoC, and which subsequently cause those handsets to produce slightly lower GPU performance because, in actuality, the GPU is powering a higher resolution overall display by comparison to the Note and S6).


There is another concept, one that is more obvious to the lay person, of a "Flexible" display.


in this context, we think of a display that is literally flexible.  you can roll it up, fold it up, and put it in your pocket.


that is NOT what these companies are referring to 99.999% of the time.  They are refering to displays that can be made to fit the contour of your wrist (like a watch), rounded or rolled around the edge of a smartphone, etc.


in other words: they mean displays that are FIXED in their final form.


the truly flexible, bendable, movable displays are possible, sure, and have been displayed for many years.... almost a decade at this point (Sony had them on display in 2007).


the issue is TOUCH SENSITIVITY.  touch sensitivity requires a backplane that can very accurately sense conductance with locational (X/Y plane... or manifold in the case of flexible) accuracy.

this has traditionally been accomplished either with a standalone mesh/net of traditional inorganic semiconductor material (Silicon, or InGaZnO, aka "IGZO" in the case of Sharp), or by "piggybacking" on the transistor mesh that is used to activate and control the pixels/pixel elements of LCD/OLED.


To make a rollable/flexible/bendable display WITH TOUCH, you need a rollable, flexible, bendable backplane that also senses conductance.

OTFTs are not the greatest materials/devices for the performance that is required for good quality touch displays...

OTFT is the only type of potentially flexible material that solves this issue, and we are still a ways off for anything other than a $1 million prototype that required 10 veteran electrical engineers and materials scientists 6 months to make as a one-off for investor/marketing purposes and for display at a trade show.