From Event: SPIE OPTO, 2018
An 8K4K-LCD with the diagonal size of 55 inch has been developed. The backplane is based on an amorphous silicon (a-Si) technology and can operate at 120Hz, which is achieved by developing a technology to compensate the charging voltage of pixels. The realization of a high resolution of 8K4K and a high frame frequency of 120Hz is the world first for LCDs with a-Si backplanes. Moreover, a backlight system with laser light sources expands the color gamut. The newly developed LCD covers 99% of color space defined in BT.2020.
Additionally, we have established three dimensional 8K4K technology. A 3D polarization filter is attached on the 55-in. 8K4K LCD. The vertical viewing angle of 8K-3D LCD prototype is 8.6 degrees at its optimal viewing position set to 1.2m.
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Junichi Maruyama, Ryutaro Oke, Tomohiro Murakoso, Masahiro Ishii, Ikuo Hiyama, Yoshihisa Kato, Hiromasa Yamashita, Kenkichi Tanioka, and Toshio Chiba, "55-inch 8K4K IPS-LCDs with high frame frequency, wide color gamut, and stereovision," Proc. SPIE 10557, Ultra-High-Definition Imaging Systems, 105570S (Presented at SPIE OPTO: February 01, 2018; Published: 19 February 2018); https://doi.org/10.1117/12.2299629.