55-in. 8K4K IPS-LCDs with wide viewing angle, high frame frequency, wide color gamut, and stereoscopic

Ryutaro Oke; Junichi Maruyama; Tomohiro Murakoso; Masahiro Ishii; Ikuo Hiyama; Yoshihisa Kato; Hiromasa Yamashita; Kenkichi Tanioka; Toshio Chiba

doi:10.1117/1.OE.57.7.075102

11 July 2018 55-in. 8K4K IPS-LCDs with wide viewing angle, high frame frequency, wide color gamut, and stereoscopic

Ryutaro Oke, Junichi Maruyama, Tomohiro Murakoso, Masahiro Ishii, Ikuo Hiyama, Yoshihisa Kato, Hiromasa Yamashita, Kenkichi Tanioka, Toshio Chiba

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Optical Engineering, Vol. 57, Issue 7, 075102 (July 2018). https://doi.org/10.1117/1.OE.57.7.075102

Abstract

We have developed an 8K4K liquid-crystal display (LCD) with diagonal size of 55 inch with the backplane based on an amorphous silicon (a-Si) technology. The 8K4K-LCD has high frame frequency at 120 Hz, which is enabled by a unique technology to compensate the charging voltage of pixels. The achievement of a high resolution of 8K4K including high frame frequency of 120 Hz with a-Si backplanes is ground-breaking for LCDs. Furthermore, a backlight system with laser diode as light source expands the color gamut dramatically. This backlight system enables covering 99% of color space recommended in BT.2020. What is more, the 8K4K-LCD has evolved into a three-dimensional (3-D) display device by attaching a 3-D polarizing film. The vertical viewing angle of the 8K-3D LCD prototype is 8.6 deg at its optimal viewing position set to 1.2 m.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Ryutaro Oke, Junichi Maruyama, Tomohiro Murakoso, Masahiro Ishii, Ikuo Hiyama, Yoshihisa Kato, Hiromasa Yamashita, Kenkichi Tanioka, and Toshio Chiba "55-in. 8K4K IPS-LCDs with wide viewing angle, high frame frequency, wide color gamut, and stereoscopic," Optical Engineering 57(7), 075102 (11 July 2018). https://doi.org/10.1117/1.OE.57.7.075102

Received: 5 April 2018; Accepted: 20 June 2018; Published: 11 July 2018

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