公开(公告)号：US10732340B2

公开(公告)日：2020-08-04

申请号：US15656589

申请日：2017-07-21

Applicant: GOOGLE INC.

Inventor： Martin Friedrich Schubert ,  Michael Grundmann

IPC: F21V8/00 ,  G02B27/01

Abstract: Techniques of providing illumination to a head-mounted display (HMD) involve providing off-board illumination apart from the HMD. An off-board illumination unit delivers the illumination to the HMD via optical fibers. The optical fibers are lightweight and do not restrict motion of a user. Because the power source is less restricted, the off-board illumination unit provides flexibility in the hardware used to generate the illumination. For example, the illumination unit may use red, green, and blue narrow-band diode lasers. Further, by controlling modes in the fiber and providing additional light-guiding hardware, the angles at which light strikes LCD pixels may be largely restricted to certain specified angles. Restricted angles of incidence enable the use of fast-switching liquid crystals without degrading the image quality. Such a restriction allows for high-resolution imaging using rapid switching of the liquid crystal which enables very low latencies.

公开(公告)号：US10475241B2

公开(公告)日：2019-11-12

申请号：US15014622

申请日：2016-02-03

Applicant: GOOGLE INC.

Inventor： Martin Friedrich Schubert ,  Mark Bradley Spitzer

IPC: G06T19/00 ,  G06T3/40 ,  G02B27/01

Abstract: Super-resolution displays, and methods of operating the same are disclosed herein. An example disclosed method includes emitting light from a pixel at a first location in a display assembly, and emitting light from the pixel at a second different location in the display assembly.