Wide Color Gamut Autostereoscopic 2D–3D Switchable Display Based on Dynamic Subpixel Arrangement

Abstract

This paper is a report on the mathematical analysis and working principle of a wide color gamut autostereoscopic 2D-3D switchable display based on the dynamic subpixel arrangement method. The display prototype discussed in the paper has three major distinctions. First, the use of dynamic subpixel arrangement method and eye-tracking system has improved its performances in the resolution, crosstalk and 2D/3D switching statistics. Second, a design of Quantum-Dot-Polymer (QDP) film and optical layer combined backlight has enhanced its viewing angle and color gamut. Third, the application of parallel computing to the dynamic subpixel arrangement method has improved its real-time performance. Base on observation from finished fabrication and experiment, this prototype has already demonstrated noticeable enhancement in terms of color gamut expansion-reaching 77.98% according to ITU-R Recommendation BT.2020 (Rec.2020), and crosstalk reduction-with the minimum crosstalk rate at nearly 6%. Close comparison with two other commercial 3D displays (BENQ XL2707-B and View Sonic VX2268WM) are also presented in the paper for sufficiency. INDEX TERMS 3-D display, dynamic subpixel arrangement, quantum dot, color gamut. YUANQING WANG received the B.S. and M.S. degrees from Zhejiang University and the Ph.D. degree from Nanjing University. He is currently a Professor with the School of Electronic Science and Engineering, Nanjing University. He was involved in the research work on optical electrical imaging and measuring systems, and special display technologies. He has completed various research projects, such as the National Hi-tech Research and Development Plan (863 Plan) of China, the National Natural Science Foundation of China, Jiangsu Hi-tech Plan, and so on. His current research interests include optical electronics and information processing, especially in LIDAR and 3D display. He is the Chairman of the 3D Imaging and Display Committee, China, and the IEC International Standard Workgroup Experts in Display Technology.

A New Distance Stereotest by Autostereoscopic Display Using an Eye-Tracking Method

“…Its crosstalk is consistent with Jonghyun Kim’s parallax barrier system ( Kim et al, 2015 ), while its viewing angle with acceptable crosstalk is significantly expanded compared to traditional autostereoscopic display systems (comparison data of viewing angles from different systems in Supplementary Appendix SB). In addition, it maintains the original physical resolution and brightness by using a spatial-sequential-multiplexed resolution ( Xu et al, 2019b ). Its definition (3,840 × 2,160) and brightness (301 cd/m 2 ) are higher than Jongshin Kim’s polarized stereoscopic display ( Kim et al, 2011 ).…”

“…The proposed autostereoscopic display applying a backlight control system combined with an eye tracking method alternately projects a pair of left and right random-dot images that actively and continuously follow the corresponding eye position of the viewer. It keeps the crosstalk at approximately 6% in the continuous viewing zones of about ±26° ( Xu et al, 2019b ) (calculation equation in Supplementary Appendix SA). Its crosstalk is consistent with Jonghyun Kim’s parallax barrier system ( Kim et al, 2015 ), while its viewing angle with acceptable crosstalk is significantly expanded compared to traditional autostereoscopic display systems (comparison data of viewing angles from different systems in Supplementary Appendix SB).…”