Liquid crystal eyebox steering in waveguide based eyewear displays
AssigneeGoogle Inc.
InventorsOzan Cakmakci, Timothy Paul Bodiya
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Abstract
The disclosure herein presents an eyebox expander for a wearable head mounted display. The eyebox expander includes a first liquid crystal layer: an electrode arrangement to apply a voltage to the first liquid crystal layer to modify an orientation associated with the first liquid crystal layer; and a compensation layer to redirect light passing through the eyebox expander based on the modification of the orientation associated with the first liquid crystal layer.
Claims20
An eyebox expander for a wearable head mounted display (WHMD), comprising:
- a first liquid crystal layer;
- an electrode arrangement to apply a first voltage to the first liquid crystal layer to modify an orientation associated with the first liquid crystal layer;
- and
- a compensation layer to redirect light passing through the eyebox expander based on the modification of the orientation associated with the first liquid crystal layer.
A lens for a wearable head mounted display (WHMD), comprising:
- a first substrate,
- a second substrate, and
- an eyebox expander between the first substrate and the second substrate, comprising:
- a first liquid crystal layer;
- an electrode arrangement to apply a voltage to the first liquid crystal layer to modify an orientation associated with the first liquid crystal layer;
- and
- a compensation layer to redirect light passing through the eyebox expander based on the modification of the orientation associated with the first liquid crystal layer.
A method to steer light beams in an eyebox of a wearable head mounted display (WHMD), the method comprising:
- applying a first voltage to a first liquid crystal layer to modify an orientation associated with the first liquid crystal layer to steer light beams in an eyebox of the WHMD;
- and
- applying a second voltage to a second liquid crystal layer to redirect light passing through a lens of the WHMD based on the modification of the orientation associated with the first liquid crystal layer.
Dependencies are inferred from the claim text.