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

摘要

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.