Wide color gamut switchable autostereoscopic 3D display based on directional quantum-dot backlight

A switchable autostereoscopic 3-dimensional(3D) display device with wide color gamut is introduced in this paper. In conjunction with a novel directional quantum-dot(QD) backlight, the precise scanning control strategy, and the eye-tracking system, this spatial-sequential solution enables our autostereoscopic display to combine all the advantages of full resolution,wide color gamut, low crosstalk, and switchable 2D/3D. And also, we fabricated an autostereoscopic display prototype and demonstrated its performances effectively. The results indicate that our system can both break the limitation of viewing position and provide high-quality 3D images. We present two working modes in this system. In the spatial-sequential mode,the crosstalk is about 6%. In the time-multiplexed mode, the viewer should wear auxiliary and the crosstalk is about 1%,just next to that of a commercial 3D display(BENQ XL2707-B and View Sonic VX2268 WM). Additionally, our system is also completely compatible with active shutter glasses and its 3D resolution is same as its 2D resolution. Because of the excellent properties of the QD material, the color gamut can be widely extended to 77.98% according to the ITU-R recommendation BT.2020(Rec.2020).

Autostereoscopic display with bicylindrical lens based on temporal-spatial multiplexing

An autostereoscopic display system with a bicylindrical lens based on temporal-spatial multiplexing technique is introduced in this paper.The system comprises a directional scanning backlight,a liquid crystal display panel with high refreshing rate,and an eye tracking device.The directional scanning backlight consists of an LED board,two lenticular lens arrays with matching periods,a parallax barrier film,and other optical films.One of the lenticular lenses is a bicylindrical lens designed to reduce aberration,hence achieving better image quality.A prototype is set up based on the proposed structure.A series of experiments are conducted,and the overall performance of the prototype is evaluated.The LEDs are divided into 10 groups that form 10 view zones.On the one hand,it achieves full resolution in both 2D and 3D display modes.On the other hand,the viewing angle is increased to t26 deg.Most importantly,the crosstalk is low.The minimum crosstalk is 6%,and the maximum crosstalk is 8.8%at a viewing angle of ±22 deg.