59‐5: Invited Paper: The Holographic Future of Head Up Displays

Abstract

Head-Up Displays (HUD) in automobiles are becoming increasingly common place, however these displays offer a relatively basic HMI experience. With the advent of self driving vehicles, the need to provide confidence inspiring visual feedback to the driver and passengers in the car will be paramount. This will principally be achieved by augmenting reality, fusing data from the cars sensor platform in a clutter free way, to enable the occupants to understand that car is truly aware of it surroundings and any threats that may be present. The existing head up display solutions that utilise LED backlit LCDs will not be able to deliver the display experience that will be required. DAQRI is developing a revolutionary holographic display technology for the next generation of Augmented Reality Head Up Displays, offering a larger, brighter display, lower power consumption, and ultimately a true 3D multi depth experience.In this presentation, we will talk about the challenges of delivering augmented reality to the vehicle and why our holographic display technology is such a compelling solution for the future of head up display applications.

Liquid-Crystal-on-Silicon for Augmented Reality Displays

“…However, the mismatch of other focus cues gives rise to visual discomfort [88,89] and distorted depth [90][91][92]. As a promising one-stop solution to provide correct focus cues with aberration correction [93], phase-only LCoS-based AR-HMD has been demonstrated [12,13,21]. Different from the intensity modulation configuration, the incident linearly polarized light on phase-only LCoS should be parallel to the LC directors.…”

“…Display registration with the real-world objects is also highly recommended, requiring a variable VID with a wide range [112,113,115,116]. The LCoS-integrated system could realize holographic AR-HUD with a larger FoV (>10 • × 5 • ) and a variable VID (>10 m) [93]. From the LCoS device aspect, the requirements in AR-HUD are somewhat different from that in AR-HMD: (1) the longer VID (>2 m) and the smaller FoV help relieve the burden on resolution; (2) the driving conditions with an intense daylight demand a much higher display luminance for keeping the high ambient contrast ratio [117]; (3) the LCoS device is expected to work in extreme environments with a wide temperature range [59,118].…”

Displays Based on Dynamic Phase-Only Holography

“…We have developed a new generation of iterative phase retrieval algorithms that deliver outstanding image quality, which was exemplified in Reference [23]. The latest generation of iterative algorithms can now achieve satisfactory display quality within 10 iterative cycles including a mean square error of less than 1 and a contrast ratio of greater than 5000:1 [24].…”

Analog LCOS SLM devices for AR display applications

“…Typical LCOS SLMs were used in the telecom applications as a wavelength selective switch (WSS) device. Recently, the LCOS SLMs also draw many attentions in the display fields, including AR glass [1] and AR head-up-display (HUD) [2]. There are many advantages of using SLM devices for display applications, such as holographic 3D images, multi-focal planes, aberration calibrations by software, simple optical engine and higher optical efficiency Figure 1 shows an example of AR glass using LCOS SLM.…”