Wireless VR

DisplayLink Wireless VR

Technology Overview

DisplayLink's network display technology has been developed specifically for applications where users need to connect a computer, smartphone or tablet to a display across a standard wired or wireless connection such as USB, Ethernet, WiFi or WiGig.  Its latest DL-6000 range of chipsets supports dual 4Kp60 displays with latency that is indiscernible from a direct connected display, while maintaining very high image quality, even in fast-moving scenes.

With the recent explosion of interest in Virtual Reality, many of our customers and partners have approached us to see how we could help them solve the problem of eliminating the tethered cable that runs between the Head Mounted Display (HMD) and gaming PC or console. This is an obvious restriction on unimpeded movement of the user in the virtual environment.

Solutions to this include elaborate ceiling mounted cable tethers and backpack gaming PCs, but we asked ourselves: "How can DisplayLink do this wirelessly?"

This is a big challenge since the video data rate on first generation VR HMDs is already four times greater than that of a high definition TV and too great for any wireless link unless the video is compressed. However, most standard compression systems such as MPEG create a delay in the video stream, and if the delay through the system (which includes sensing head movement and generating the CGI scene) becomes greater than 20ms, the user will start to feel motion sickness.

DisplayLink's solution combines our unique approach to video compression with deep technical partnerships with leading wireless networking companies.  Despite the high video data rates demanded by VR applications, DisplayLink's compression system can maintain the resolution, quality, and framerate of the VR display but with no discernible increase in latency compared to a direct connected display.

First-generation VR HMDs such as Vive and Rift support 1.3 megapixels per eye, for a data rate of about 6Gbps. DisplayLink's current chipsets supports 4K resolution displays at up to 120 frames per second equivalent to 24 Gbps. Combining massive video data capability with very low latency means DisplayLink's chipsets are ideally suited to VR head mounted displays.

DisplayLink Wireless VR

See DisplayLink wireless VR in action.

DisplayLink Experience

DisplayLink has more than ten years' experience developing networked display solutions for interactive applications where low latency is a must. We're also familiar with wireless display solutions using many different types of wireless networking technology.

DisplayLink Wireless VR

In 2017 at CES we were pleased to showcase the industry's first multi-platform, high resolution, low latency wireless display solution specifically targeted at the VR head mounted display market. Specific features of the DisplayLink solution are:

Feature Specification
High Resolution Supports Gen 1 headsets (2160 x 1200) 90 fps with roadmap to 4K 120 fps and high dynamic range (HDR) for Gen 2 and Gen 3 products
Excellent Quality No visible motion or compression artefacts
Low Latency Typically sub frame of 2-3ms
Wireless 60 GHz radio with beam-steering active antenna
Battery Powered 2-hour operation from standard pack (head or belt mounted)
Standard Interfaces - HDMI or DisplayPort for forward video path
- USB2/USB3 for camera and sensor back channel

A first reference implementation was demonstrated publicly at CES in January 2017. DisplayLink is in discussion with manufacturing partners to bring a commercial product to market in H2’17.