Take A Closer Look at Samsung’s Micro LED Modular TV ‘The Wall’
https://www.ledinside.com/news/2018/1/video_take_a_closer_look_at_samsungs_micro_led_modular_tv_the_wall

"Lumens" 139", 0.8mm pitch, 100x300um led
https://www.ledinside.com/news/2018/1/photos_large_sized_lumens_micro_led_displays_at_ces_2018
　>The Micro LEDs used in both signage displays are 300μm long and 100μm wide.
　>The panel maker probably uses the technology licensed from the Korea Institute
　> of Machinery and Materials (KIMM) to transfer them to target backplanes.