Originally Posted by Art Sonneborn
If you have the money the Samsung if you don't the JVC.
ITRI showcasing modularized micro LED display at CES 2020
Siu Han, Taipei; Adam Hwang, DIGITIMES Wednesday 8 January 2020 0 Toggle Dropdown
Taiwan-based Industrial Technology Research Institute (ITRI) is exhibiting at CES 2020 a 16.7-inch modularized micro LED display that it claims is the world's first model directly mass transferring micro LED chips onto PCB backplanes without using temporary backplanes.
The government-sponsored ITRI uses in-house-developed mass transfer technology, with PlayNitride supplying micro LEDs, Unimicron providing PCB backplanes and Macroblock providing driver ICs and handling display assembly.
The modularized display is formed by stacking 15 micro LED modules each measuring 6x10cm, with a pitch of about 650 microns, ITRI noted. Each module consists of 45,000 micro LED chips of below 100 microns in diameter, and the modules can be mosaicked into displays of different sizes, ITRI indicated.
Direct mass transfer of micro LEDs onto backplanes is 20% lower in production cost than using temporary ones, but such a process is technologically challenging due to high warpage of PCB backplanes, ITRI explained.
As yield rates for blue- and green-light micro LED chips stand at 99.99% and those for red-light micro LED chips at 99% currently, ITRI aims to improve its mass transfer technology as well as production of micro LED chips via cooperation with PlayNitride to hike over yield rates.
ITRI will develop mass transfer of micro LED chips onto glass backplanes in 2020, with such micro LED displays to be used in gaming monitors. ITRI will also develop mass transfer of micro LEDs onto Si-based backplanes for AR applications in 2022-2023.
Macroblock set up production lines for mini LED and micro LED display modules in the second half of 2019 and started trial production in the fourth quarter.