What They Say
There was a very interesting article in The Elec today that highlighted Samsung’s plans to try to use 12.7″ LTPS modules from AUO for its 89″, 101″ and 114″ microLED TVs which would need 49, 64 and 81 modules, respectively. It estimates the cost of such modules as $70 to $80 each and possibly more if yields are low. It also said that in comparison to a substrate for an OLED, the backplane would need 24 mask processes vs 11 or 12.
Separately, the ET News reported on developments by Laser Apps of Korea in developing cutting and processing technologies for allowing the ‘side-wiring’ of modules for tiled displays.
What We Think
I’ve looked at this in my Display Daily today (Seamless Tiled Displays – A Bit of a Challenge and published a bit later than this story) along with a bit more of the background of the development of tiled displays. Clearly, nobody would want to tile LTPS if it could avoid it. LTPS is inherently expensive because of the cost and limited life of the lasers and nobody has succeeded in scaling the area of LTPS. Ideally, I am sure, Samsung would be trying to use IGZO. I had a recent conversation with an analyst who highlighted the improvements in oxide mobilities recently, so that’s a topic I will return to. (BR)
AUO has shown LTPS-based MicroLEDs for several years
